about XLR8 Perfromance Crank Pully
11-23-2010, 01:12 PM
#41
I'm a thrill seeker in my
RCB you can throw your knowledge around all you want and cause a stir with the other members of this forum who's knowledge surpasses the vast majority of us, but what is the objective of your argument?
If you are trying to convince any and all members who have or plan to install a lightweight aftermarket crank pulley that it is unsafe to do so on their daily driven J32s then I believe you are failing in all aspects.
Pushing your arguments on others with no real world evidence of your claims specific to our application is essentially useless; it provides no validity.
There is opportunity to knock marketing claims, but what's the point when the product has already spoken for itself. When a product is first launched marketing is essential to establishing the credibility and performance of said product. However, once the brand and product has developed an image for quality and real performance increases (without jeopardizing safety) why say, "Their claims are bullshit, it's all a load of crap with little to no truth behind it,"?
I honestly don't believe you are debating this issue to increase the knowledge of other members with regard to a establishing a safety concern with this specific application. The way I see it, you're simply bored with your daily life and find this debate a nice blood rushing thrill.
You can argue, "What does this 22 year old know? Who's he to argue against me with little knowledge of what I'm discussing?" Well you can throw those questions out there, but I'm not posting to argue your knowledge of the finer details. I have my qualifications and you have yours. I'm sure we've both worked hard to achieve them. I'm posting to question the purpose and validity of your arguments.
Some greatly respected and highly knowledgeable members (who in fact know the J32 engine inside-out) have already posted in response to your claims and clarified any misconceptions you may have. Unfortunately your mind is made up and you don't appear to be open perspectives other than your own.
In addition, I believe I speak for the majority of members in this particular forum that pushy and close minded arguments are not welcome. It provides little benefit to other member's experiences with their beloved cars.
I, myself had a Honda specialist (with years of experience in the manufacturing process with Honda, and as a well respected mechanic in my community) install the Unorthodox Racing underdrive crank pulley on my car. We discussed the application, it's performance attributes and the safety of installing the part. I have experienced no adverse effects from the install in terms of engine vibrations, leaks or other performance decreases.
To conclude, all I have left to say is give it up and move on. Those that care to argue already have and all you've done is taken up their valuable time; time that could be spent helping other forum members with their real issues.
If you are trying to convince any and all members who have or plan to install a lightweight aftermarket crank pulley that it is unsafe to do so on their daily driven J32s then I believe you are failing in all aspects.
Pushing your arguments on others with no real world evidence of your claims specific to our application is essentially useless; it provides no validity.
There is opportunity to knock marketing claims, but what's the point when the product has already spoken for itself. When a product is first launched marketing is essential to establishing the credibility and performance of said product. However, once the brand and product has developed an image for quality and real performance increases (without jeopardizing safety) why say, "Their claims are bullshit, it's all a load of crap with little to no truth behind it,"?
I honestly don't believe you are debating this issue to increase the knowledge of other members with regard to a establishing a safety concern with this specific application. The way I see it, you're simply bored with your daily life and find this debate a nice blood rushing thrill.
You can argue, "What does this 22 year old know? Who's he to argue against me with little knowledge of what I'm discussing?" Well you can throw those questions out there, but I'm not posting to argue your knowledge of the finer details. I have my qualifications and you have yours. I'm sure we've both worked hard to achieve them. I'm posting to question the purpose and validity of your arguments.
Some greatly respected and highly knowledgeable members (who in fact know the J32 engine inside-out) have already posted in response to your claims and clarified any misconceptions you may have. Unfortunately your mind is made up and you don't appear to be open perspectives other than your own.
In addition, I believe I speak for the majority of members in this particular forum that pushy and close minded arguments are not welcome. It provides little benefit to other member's experiences with their beloved cars.
I, myself had a Honda specialist (with years of experience in the manufacturing process with Honda, and as a well respected mechanic in my community) install the Unorthodox Racing underdrive crank pulley on my car. We discussed the application, it's performance attributes and the safety of installing the part. I have experienced no adverse effects from the install in terms of engine vibrations, leaks or other performance decreases.
To conclude, all I have left to say is give it up and move on. Those that care to argue already have and all you've done is taken up their valuable time; time that could be spent helping other forum members with their real issues.
Last edited by TheMegalodon; 11-23-2010 at 01:15 PM.
11-23-2010, 01:49 PM
#42
the knock is the marketing BS and trying to compare it to industires they have no experience with and the failure to highlight relative important details with specific information required for proper function, me personally I'm not going to install something where the interface has a looser tolerance than orginal and which has an effect on runout, trying to say it's the next best thing is BS I can go to the lathe and knock one out that will do the exact same function and weigh less using different materials, only advantage is the lighter weight, what most likely wasn't done was to see the actuall effect it has on the rotating assembly from a measured definitive stand point, maybe you don't feel the vibration, maybe you can't tell it's interducing more vibration to the rotating assemlby that wasn't there before the part was installed, actually using measuring devices to verify and back up your claim what a novel approach that is, doubt it otherwise they would have used more techincal information to support their claim instead of BS generalized comments or claims off on tangents about oil pump failures, never seen a crank screw one of those up, after all isn't the dump driven off of the crank?
great it's balanced to 0 grams staticly, what's the concentricity of the crank bore to the belt's mating surface, what's the cylindricity of the crank bore, what's the runout relative to the bores and v's in the pulley usefull information that tells me without question it's better, not some BS well these guys have used it this many times and we haven't seen any issues, DATA FACTUAL ENGINEERING DATA NOT BS that this guys uses without issue. It's called engineering and actual measured test data to support it, just like any other OEM part manufacturer is required to do and would do on a daily bases.
great it's balanced to 0 grams staticly, what's the concentricity of the crank bore to the belt's mating surface, what's the cylindricity of the crank bore, what's the runout relative to the bores and v's in the pulley usefull information that tells me without question it's better, not some BS well these guys have used it this many times and we haven't seen any issues, DATA FACTUAL ENGINEERING DATA NOT BS that this guys uses without issue. It's called engineering and actual measured test data to support it, just like any other OEM part manufacturer is required to do and would do on a daily bases.
Last edited by rcb2000; 11-23-2010 at 02:01 PM.
11-23-2010, 03:05 PM
#43
I'm a thrill seeker in my
the knock is the marketing BS and trying to compare it to industires they have no experience with and the failure to highlight relative important details with specific information required for proper function, me personally I'm not going to install something where the interface has a looser tolerance than orginal and which has an effect on runout, trying to say it's the next best thing is BS I can go to the lathe and knock one out that will do the exact same function and weigh less using different materials, only advantage is the lighter weight, what most likely wasn't done was to see the actuall effect it has on the rotating assembly from a measured definitive stand point, maybe you don't feel the vibration, maybe you can't tell it's interducing more vibration to the rotating assemlby that wasn't there before the part was installed, actually using measuring devices to verify and back up your claim what a novel approach that is, doubt it otherwise they would have used more techincal information to support their claim instead of BS generalized comments or claims off on tangents about oil pump failures, never seen a crank screw one of those up, after all isn't the dump driven off of the crank?
great it's balanced to 0 grams staticly, what's the concentricity of the crank bore to the belt's mating surface, what's the cylindricity of the crank bore, what's the runout relative to the bores and v's in the pulley usefull information that tells me without question it's better, not some BS well these guys have used it this many times and we haven't seen any issues, DATA FACTUAL ENGINEERING DATA NOT BS that this guys uses without issue. It's called engineering and actual measured test data to support it, just like any other OEM part manufacturer is required to do and would do on a daily bases.
great it's balanced to 0 grams staticly, what's the concentricity of the crank bore to the belt's mating surface, what's the cylindricity of the crank bore, what's the runout relative to the bores and v's in the pulley usefull information that tells me without question it's better, not some BS well these guys have used it this many times and we haven't seen any issues, DATA FACTUAL ENGINEERING DATA NOT BS that this guys uses without issue. It's called engineering and actual measured test data to support it, just like any other OEM part manufacturer is required to do and would do on a daily bases.
How the hell am I supposed to understand and follow the point you're trying to make, when all you do is vomit your thoughts onto the keyboard and separate it with commas?
From what I understand, the reason for this whole large, unnecessary debate is the terms and details used under the product's description? So if Excelerate Performance and HeelToe Auto changed their "marketing" descriptions of the lightweight crank pulleys they sell you would be happy with life once more?
It appears as though you have a deep and excellent knowledge of the engineering aspects of various technologies for a variety (maybe not all) of applications. So why are you here in this forum squandering your knowledge on members who may not understand what you're attempting to explain, and also may not necessarily care?
11-23-2010, 04:51 PM
#45
Senior Moderator
The alternator isnt putting out the maximum voltage at low rpm. They make a stock sized pulley thats lightweight for instances like that so nothing is effected.
11-23-2010, 07:46 PM
#46
I'm a thrill seeker in my
I bought the underdrive pulley off another member and had it installed with no issues afterwards. I don't have a bumpin' system or anything that would draw additional power so my accessories run just fine despite a lower output by my alternator.
Based on all experiences with other members you really can't go wrong with this modification. It's not that expensive, and provides real benefit. I noticed less downshift lag and increased throttle response when I floored the gas.
I would recommend it and of course buying the new belts that coincide with installing the new crank pulley.
Last edited by TheMegalodon; 11-23-2010 at 07:48 PM.
11-24-2010, 11:30 AM
#47
lets see the main's have a tolerance range of +/- .0004724" (0.012mm)
roundness is .0002" max
runout is .0008" max
and you want to say +/-.001" is reserved for the medical, aerospace and millitary industires, sorry pretty non-impressive and potential problems because the precision of the part doen't match the precision of the piece it's mated with.
Explain to me how it is even balanced? there are no visual signs of any material removal that would be required to balance the part. Oh they hone out the lightening holes? what if that isn't where the weight needs removed, split the difference and use two of them?
Marketing BS assuming the audience they are marketing to doesn't know the diference. Sorry not the quality or precision I'm looking for, I would just make my own to a higher precision, after all it's all about the material used, the precision of the equipement used and skill of the operator using the equipement.
roundness is .0002" max
runout is .0008" max
and you want to say +/-.001" is reserved for the medical, aerospace and millitary industires, sorry pretty non-impressive and potential problems because the precision of the part doen't match the precision of the piece it's mated with.
Explain to me how it is even balanced? there are no visual signs of any material removal that would be required to balance the part. Oh they hone out the lightening holes? what if that isn't where the weight needs removed, split the difference and use two of them?
Marketing BS assuming the audience they are marketing to doesn't know the diference. Sorry not the quality or precision I'm looking for, I would just make my own to a higher precision, after all it's all about the material used, the precision of the equipement used and skill of the operator using the equipement.
11-25-2010, 11:37 AM
#48
rcb you are officially grasping at details here to prove a point that nobody cares about and don't make a real world difference. If you are waiting for someone to concede and support you, I could do that...but there isn't much point because at the end of the day, installing these pulleys does not hurt the engine.
11-29-2010, 08:55 AM
#49
so where is the test data to back up your claim?
Joe BLow from Kokomo and Delburt Dick from Decatur have been using it for X years without issue? That's your test data?
Sorry that just doesn't cut it in court.
scientific data from actually testing the piece in a controlled enviroment holds up in court, not BS claims from marketing.
12-01-2010, 11:56 AM
#51
If you do have a larger stereo or a supercharger then we have the stock diameter crank pulley, which is still lightweight. We just received a shipment of these.
http://store.excelerateperformance.c.../i-291888.aspx
12-01-2010, 11:58 AM
#52
thanks, but i already have the underdrive 
aside from im assuming, dimming of my accessories... are there any negative effects to it?
if it comes to it i will just not turn my system up, or add a capacitor inline to the amps.
aside from im assuming, dimming of my accessories... are there any negative effects to it?
if it comes to it i will just not turn my system up, or add a capacitor inline to the amps.
12-01-2010, 01:59 PM
#53
so where is the test data to back up your claim?
Joe BLow from Kokomo and Delburt Dick from Decatur have been using it for X years without issue? That's your test data?
Sorry that just doesn't cut it in court.
scientific data from actually testing the piece in a controlled enviroment holds up in court, not BS claims from marketing.
Joe BLow from Kokomo and Delburt Dick from Decatur have been using it for X years without issue? That's your test data?
Sorry that just doesn't cut it in court.
scientific data from actually testing the piece in a controlled enviroment holds up in court, not BS claims from marketing.
Evidence that people are not having issues might not be scientific data, but a theory to the contrary is just that: a theory. Unless a theory can be proven by repeatable experimentation it will never be more than that.
12-02-2010, 09:20 AM
#54
Senior Moderator
so where is the test data to back up your claim?
Joe BLow from Kokomo and Delburt Dick from Decatur have been using it for X years without issue? That's your test data?
Sorry that just doesn't cut it in court.
scientific data from actually testing the piece in a controlled enviroment holds up in court, not BS claims from marketing.
Joe BLow from Kokomo and Delburt Dick from Decatur have been using it for X years without issue? That's your test data?
Sorry that just doesn't cut it in court.
scientific data from actually testing the piece in a controlled enviroment holds up in court, not BS claims from marketing.
Real world results with hundreds of users are better test data than the one put in a "controlled environment"Show us PROOF other wise that this product will destroy our motors! You wont find it.
12-02-2010, 09:41 AM
#55
So all those with tens of thousands of miles (me with close to 300k total) dont count as good data? Real world results with hundreds of users are better test data than the one put in a "controlled environment"
Show us PROOF other wise that this product will destroy our motors! You wont find it.
Real world results with hundreds of users are better test data than the one put in a "controlled environment"Show us PROOF other wise that this product will destroy our motors! You wont find it.
have you pulled the crank and actually measured the journals? checked runout? checked the size, checked clearences? checked the balance? check the thrust bearing, any measurements on anything at all? doubt it.
Getting sued because someone sent the crank through the block after installing this product and then claiming it's not our fault, we have all these guys on this website that haven't had any issues but we've never actually tested the part in a controlled enviroment to see what effect or how much of an effect the part has on the application because all of this real world actual driving says we don't need too even though we've never actually inspected the part after x days or x miles to verify everything is still within the orginal design specifications, yea that'll sway the judge to your side. Sample size of one uninspected pulley is good enough isn't, that will relieve us of liability won't it? ignorance doesn't work in the court system so I wouldn't count on it.
12-02-2010, 10:10 AM
#56
Actually I did on my motor. I pulled my motor in my Accord F23A1 after having the pulley installed for tens of thousands of miles and everything was in perfect shape. Then I reinstalled the pulley after building the motor with lower compression pistons and more durable rods. I have been running 15 psi on this motor and internally everything has been perfect.
12-02-2010, 11:02 AM
#57
have you pulled the crank and actually measured the journals? checked runout? checked the size, checked clearences? checked the balance? check the thrust bearing, any measurements on anything at all? doubt it.
Getting sued because someone sent the crank through the block after installing this product and then claiming it's not our fault, we have all these guys on this website that haven't had any issues but we've never actually tested the part in a controlled enviroment to see what effect or how much of an effect the part has on the application because all of this real world actual driving says we don't need too even though we've never actually inspected the part after x days or x miles to verify everything is still within the orginal design specifications, yea that'll sway the judge to your side. Sample size of one uninspected pulley is good enough isn't, that will relieve us of liability won't it? ignorance doesn't work in the court system so I wouldn't count on it.
Getting sued because someone sent the crank through the block after installing this product and then claiming it's not our fault, we have all these guys on this website that haven't had any issues but we've never actually tested the part in a controlled enviroment to see what effect or how much of an effect the part has on the application because all of this real world actual driving says we don't need too even though we've never actually inspected the part after x days or x miles to verify everything is still within the orginal design specifications, yea that'll sway the judge to your side. Sample size of one uninspected pulley is good enough isn't, that will relieve us of liability won't it? ignorance doesn't work in the court system so I wouldn't count on it.
I dont see why you keep beating on this whole crank pulley idea. The crank itself is so heavy, its bolted down by 4 huge end caps. A lightweight pulley is what? a pound and a few ounces? Even if it was slightly out of balance there is no way it could do enough damage within the lifespan of the motor. The rotating diameter of the crankshaft is also much greater than the rotating diameter of the crank pulley. IIRC in order to throw the balance off a crank the rotating mass attached to the end of it would have to have a greater rolling diameter... sooo if we were talking about flywheels, that would be a more applicable debate.
Most people dont even keep the car for 200k. And if they do, it would be probably due for a rebuild anyways. Lets face it, from the day you turn on your car from the factory it starts wearing. Friction is something that will never go away. No motor is going to run forever.
Last edited by e r y k; 12-02-2010 at 11:06 AM.
12-02-2010, 11:18 AM
#58
Actually I did on my motor. I pulled my motor in my Accord F23A1 after having the pulley installed for tens of thousands of miles and everything was in perfect shape. Then I reinstalled the pulley after building the motor with lower compression pistons and more durable rods. I have been running 15 psi on this motor and internally everything has been perfect.
if there is not an area with material removed then there is a major issue and they are liable for fraud. Any other claim is questionable as well, and thus a very poor market department making false undocumented claims opening the company to liability and a multi million dollar lawsuit IMHO.
Last edited by rcb2000; 12-02-2010 at 11:22 AM.
12-02-2010, 04:13 PM
#59
My car has a comptech exhuast, RV6 V 3 J pipe, AEM V2, ONE 10 inch alpine TYPE R, and will soon have the V3 PCDS. What pulley do you guys suggest that I shud go with. How many gains am i looking at with the pulley.
and can you please post the link to what pulley i should buy.
thanks I will get this as long as it does not harm my engine in anyway.
I really did not have prior knowledge to going fully bolted and i rely on this site for all my knowledge. So I will listen to people who have the product with personal experience and vendors who sell it. I am looking to achieve the maximum HP i can without going FI.
and can you please post the link to what pulley i should buy.
thanks I will get this as long as it does not harm my engine in anyway.
I really did not have prior knowledge to going fully bolted and i rely on this site for all my knowledge. So I will listen to people who have the product with personal experience and vendors who sell it. I am looking to achieve the maximum HP i can without going FI.
12-02-2010, 04:30 PM
#61
post a picture of the pulley in the area where material is removed to balance the pulley?
if there is not an area with material removed then there is a major issue and they are liable for fraud. Any other claim is questionable as well, and thus a very poor market department making false undocumented claims opening the company to liability and a multi million dollar lawsuit IMHO.
if there is not an area with material removed then there is a major issue and they are liable for fraud. Any other claim is questionable as well, and thus a very poor market department making false undocumented claims opening the company to liability and a multi million dollar lawsuit IMHO.
Or better yet, assuming to achieve a high level of balance REQUIRES balancing of the part. Somehow you are failing to understand that these parts are concentrically made and therefore are not prone to imbalance from the beginning, and in addition to that the mass is so low on them any imbalance is negligible because of the very small moment involved.
12-02-2010, 04:52 PM
#62
have you pulled the crank and actually measured the journals? checked runout? checked the size, checked clearences? checked the balance? check the thrust bearing, any measurements on anything at all? doubt it.
Getting sued because someone sent the crank through the block after installing this product and then claiming it's not our fault, we have all these guys on this website that haven't had any issues but we've never actually tested the part in a controlled enviroment to see what effect or how much of an effect the part has on the application because all of this real world actual driving says we don't need too even though we've never actually inspected the part after x days or x miles to verify everything is still within the orginal design specifications, yea that'll sway the judge to your side. Sample size of one uninspected pulley is good enough isn't, that will relieve us of liability won't it? ignorance doesn't work in the court system so I wouldn't count on it.
Getting sued because someone sent the crank through the block after installing this product and then claiming it's not our fault, we have all these guys on this website that haven't had any issues but we've never actually tested the part in a controlled enviroment to see what effect or how much of an effect the part has on the application because all of this real world actual driving says we don't need too even though we've never actually inspected the part after x days or x miles to verify everything is still within the orginal design specifications, yea that'll sway the judge to your side. Sample size of one uninspected pulley is good enough isn't, that will relieve us of liability won't it? ignorance doesn't work in the court system so I wouldn't count on it.
If there was any reason to do more testing don't you think someone would do it? There is no reason because the only people saying it is needed are those who are basing things on theories.
If you actually think anyone is going to court in any kinda million dollar lawsuit here...I really don't agree.
12-02-2010, 06:28 PM
#63
Senior Moderator
have you pulled the crank and actually measured the journals? checked runout? checked the size, checked clearences? checked the balance? check the thrust bearing, any measurements on anything at all? doubt it.
Getting sued because someone sent the crank through the block after installing this product and then claiming it's not our fault, we have all these guys on this website that haven't had any issues but we've never actually tested the part in a controlled enviroment to see what effect or how much of an effect the part has on the application because all of this real world actual driving says we don't need too even though we've never actually inspected the part after x days or x miles to verify everything is still within the orginal design specifications, yea that'll sway the judge to your side. Sample size of one uninspected pulley is good enough isn't, that will relieve us of liability won't it? ignorance doesn't work in the court system so I wouldn't count on it.
Getting sued because someone sent the crank through the block after installing this product and then claiming it's not our fault, we have all these guys on this website that haven't had any issues but we've never actually tested the part in a controlled enviroment to see what effect or how much of an effect the part has on the application because all of this real world actual driving says we don't need too even though we've never actually inspected the part after x days or x miles to verify everything is still within the orginal design specifications, yea that'll sway the judge to your side. Sample size of one uninspected pulley is good enough isn't, that will relieve us of liability won't it? ignorance doesn't work in the court system so I wouldn't count on it.
And WTF are you now talking about going to court???
So in other words by your latest comment then ANYONE that installs ANYTHING from exhaust to spark plugs could sue for any thing put on a car if their car all of a sudden dies. Ignorance doesnt work in this forum. Quit trying to prove you are correct when you arent. These things are proven to work without problems. People have been running lightweight cranks for around TEN years now. No one has had a issue.
Last edited by fsttyms1; 12-02-2010 at 06:30 PM.
12-04-2010, 12:56 PM
#64
My car has a comptech exhuast, RV6 V 3 J pipe, AEM V2, ONE 10 inch alpine TYPE R, and will soon have the V3 PCDS. What pulley do you guys suggest that I shud go with. How many gains am i looking at with the pulley.
and can you please post the link to what pulley i should buy.
thanks I will get this as long as it does not harm my engine in anyway.
I really did not have prior knowledge to going fully bolted and i rely on this site for all my knowledge. So I will listen to people who have the product with personal experience and vendors who sell it. I am looking to achieve the maximum HP i can without going FI.
and can you please post the link to what pulley i should buy.
thanks I will get this as long as it does not harm my engine in anyway.
I really did not have prior knowledge to going fully bolted and i rely on this site for all my knowledge. So I will listen to people who have the product with personal experience and vendors who sell it. I am looking to achieve the maximum HP i can without going FI.
http://store.excelerateperformance.c.../i-291887.aspx
12-20-2010, 11:05 AM
#65
I'm looking to get the kits is there any discount for azine member? Thanks
http://store.excelerateperformance.c.../i-291889.aspx
http://store.excelerateperformance.c.../i-291889.aspx
Last edited by OverGloc; 12-20-2010 at 11:12 AM.
12-21-2010, 12:21 PM
#66
I'm looking to get the kits is there any discount for azine member? Thanks
http://store.excelerateperformance.c.../i-291889.aspx
http://store.excelerateperformance.c.../i-291889.aspx
11-17-2012, 11:11 PM
#69
so where is the test data to back up your claim?
Joe BLow from Kokomo and Delburt Dick from Decatur have been using it for X years without issue? That's your test data?
Sorry that just doesn't cut it in court.
scientific data from actually testing the piece in a controlled enviroment holds up in court, not BS claims from marketing.
Joe BLow from Kokomo and Delburt Dick from Decatur have been using it for X years without issue? That's your test data?
Sorry that just doesn't cut it in court.
scientific data from actually testing the piece in a controlled enviroment holds up in court, not BS claims from marketing.
11-18-2012, 03:42 PM
#70
Since this thread has been brought back from the dead I'd like to note that I have had an underdrive aluminum pulley kit on my TSX for about 24,000 miles now. I have taken it to two track days, I have beat on it up the California coast twice, lots of stop and go as well as freeway driving.
My proof my engine is in good shape after all of this?
http://www.heeltoeauto.com/files/tec...-2012-1007.pdf
The data is not totally complete there, the first few changes were all conventional oil, and one of the more recent ones were as well. We have one test where iron is pretty high, but I think this is because I had too many miles on that oil.
Overall, the engine is healthy, does not burn oil, does not have any excess wear at all.
Aluminum pulleys bad for K-series engines = MYTH!
Marcus
My proof my engine is in good shape after all of this?
http://www.heeltoeauto.com/files/tec...-2012-1007.pdf
The data is not totally complete there, the first few changes were all conventional oil, and one of the more recent ones were as well. We have one test where iron is pretty high, but I think this is because I had too many miles on that oil.
Overall, the engine is healthy, does not burn oil, does not have any excess wear at all.
Aluminum pulleys bad for K-series engines = MYTH!
Marcus
11-18-2012, 09:10 PM
#72
Senior Moderator
01-22-2013, 04:21 AM
#74
The balancer/Engine drive pulley on theHonda/Acura is as fsttyms1 says. There is another thing also which I don'tbelieve I saw anywhere in here. Traditionally the dampening was used so thatthe engine would run smooth (The best way I can put it). What I mean is thatthere is a "surge" of power that occurs at the moment of combustionon the combustion cycle. Additionally, no two explosions is your cylinders aregoing to produce the exact same amount of force (Many determining factors). Thepurpose of the elastomer would be to "absorb" , if you will, anyanomalies resulting in a more even feel. The more cylinders you have the lessyou really need the damper. The more explosions per rotation, the less theengine needs a damper. Ideally for a 4 stroke engine if you could get a V-720it would be nearly seamless since you could have an explosion every singledegree of every single rotation. Really, the worst that would happen (If thepulley is installed correctly) in most modern engines would be that enginemight feel a little jumpy. And once again, it would be most notice able on a 4cylinder considering explosions occur only every 180 degrees of rotation.
12-15-2017, 08:25 PM
#75
Can you use one of these pulleys on a new car without voiding the warranty? (I assume no)
Do you remember the Pizza Keg video arcade that was across the street from Von's Copy Shop in the mid/late 80's? To this day that remains one of my favorite places on Earth - sad that there is no modern equivalent and the only places even close are in Tokyo, Japan. Purdue's Student Union was really cool back then too, it even had an underground bowling alley, a pool hall, and a little video game arcade of it's own, but my favorite spot was the "Sweet Shop" with it's dark wooden booths and dim lighting. I'm venturing this far off topic because the thread hadn't been replied to in over 4 years, but was still the right place to ask my initial question I think...
Do you remember the Pizza Keg video arcade that was across the street from Von's Copy Shop in the mid/late 80's? To this day that remains one of my favorite places on Earth - sad that there is no modern equivalent and the only places even close are in Tokyo, Japan. Purdue's Student Union was really cool back then too, it even had an underground bowling alley, a pool hall, and a little video game arcade of it's own, but my favorite spot was the "Sweet Shop" with it's dark wooden booths and dim lighting. I'm venturing this far off topic because the thread hadn't been replied to in over 4 years, but was still the right place to ask my initial question I think...
Thread
Thread Starter
Forum
Replies
Last Post
rp_guy
Member Cars for Sale
9
07-16-2017 07:33 AM
08_UA7_Gr33k
Member Cars for Sale
13
02-11-2016 02:17 PM
08_UA7_Gr33k
Member Cars for Sale
1
09-27-2015 01:56 PM
