Comptech Supercharger Front Mount IC Air to Air Design...
10-03-2007, 09:46 PM
#121
Senior Moderator
Originally Posted by I hate cars
I would like to wager a little bet. At the level of mods a couple of you are at, I will bet money the car slows down through the 1/4 with the addition of a manual. Yes, understand it's more fun with a manual and all that. For the amount of money spent, ever consider a higher stall convertor?
10-03-2007, 10:52 PM
#122
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Great photos on this thread!
Not to be a ‘nay-sayer’, but I doubt adding an intercooler to a COMPTECH SC running with stock pulleys is going to do much to boost output.
Digression: What makes intercoolers a necessity with turbos is that the turbocharger actually produces pressures well beyond what’s introduced into the expanse of the manifold…and with that it’s creating incredible temperatures too. This is because the relatively small turbine blades of a turbocharger must over-pressurize coming off the surface of the impellers in order to compensate for the small volume of air its capable of moving. This makes it very adiabatically inefficient, even if it were only generating a manifold boost of a few psi. However & in contrast, a supercharger is endowed with much larger impellers that have the luxury of spinning much slower. It moves a larger volume of air from a much lower rpm. This means its not heating the air nearly so much as a turbocharger. And this equates to a cooler, more oxygen rich induction.
I’m not saying an intercooler won’t provide some improvement; it will just be disproportionately less than from what gains you’d see from a turbocharger generating a net boost at the same psi level.
Also, intercoolers do add friction (& heat). Anytime you have a bend in a pipe with airflow under pressure, you’ve added heat from friction. However, the intrinsic feature of the intercooler is to provide a net cooling via convection that well offsets it’s inefficiencies.
Not to be a ‘nay-sayer’, but I doubt adding an intercooler to a COMPTECH SC running with stock pulleys is going to do much to boost output.
Digression: What makes intercoolers a necessity with turbos is that the turbocharger actually produces pressures well beyond what’s introduced into the expanse of the manifold…and with that it’s creating incredible temperatures too. This is because the relatively small turbine blades of a turbocharger must over-pressurize coming off the surface of the impellers in order to compensate for the small volume of air its capable of moving. This makes it very adiabatically inefficient, even if it were only generating a manifold boost of a few psi. However & in contrast, a supercharger is endowed with much larger impellers that have the luxury of spinning much slower. It moves a larger volume of air from a much lower rpm. This means its not heating the air nearly so much as a turbocharger. And this equates to a cooler, more oxygen rich induction.
I’m not saying an intercooler won’t provide some improvement; it will just be disproportionately less than from what gains you’d see from a turbocharger generating a net boost at the same psi level.
Also, intercoolers do add friction (& heat). Anytime you have a bend in a pipe with airflow under pressure, you’ve added heat from friction. However, the intrinsic feature of the intercooler is to provide a net cooling via convection that well offsets it’s inefficiencies.
10-03-2007, 11:06 PM
#123
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Yeah I know, here I am again, but I find this thread fascinating, it’s a great ‘read’.
Mr. I Hate Cars, indeed, increasing the stall speed of a torque converter would work to the advantage of improving the launch of the (relatively) torque-shy TL. However, it’s a serious proposition because boosting it too much is going to adversely affect the street drivability of the car.
Mr. Csmeance, IMO, I’d guess the TL’s 6 speed MT would always enjoy an advantage over the 5 speed AT. Simply put, more gears means more time the motor is running closer to its ‘sweet spot’ in the higher RPMs…that’s significant. In fact, if Acura did just one thing to their TL, I’d take a 6 speed AT ahead of factory tweaks (aka 'Type S') to the motor. That extra gear alone will result in greater acceleration. One can always do the mods on the engine, but try adding another gear to the tranny as a weekend project. Ok, just being facetious to make a point. BTW, I enjoy the 3Gen TL forums more than any part of this website!
Mr. I Hate Cars, indeed, increasing the stall speed of a torque converter would work to the advantage of improving the launch of the (relatively) torque-shy TL. However, it’s a serious proposition because boosting it too much is going to adversely affect the street drivability of the car.
Mr. Csmeance, IMO, I’d guess the TL’s 6 speed MT would always enjoy an advantage over the 5 speed AT. Simply put, more gears means more time the motor is running closer to its ‘sweet spot’ in the higher RPMs…that’s significant. In fact, if Acura did just one thing to their TL, I’d take a 6 speed AT ahead of factory tweaks (aka 'Type S') to the motor. That extra gear alone will result in greater acceleration. One can always do the mods on the engine, but try adding another gear to the tranny as a weekend project. Ok, just being facetious to make a point. BTW, I enjoy the 3Gen TL forums more than any part of this website!
10-04-2007, 06:35 PM
#126
Team Owner
Originally Posted by Snookynibbles
Great photos on this thread!
Not to be a ‘nay-sayer’, but I doubt adding an intercooler to a COMPTECH SC running with stock pulleys is going to do much to boost output.
Digression: What makes intercoolers a necessity with turbos is that the turbocharger actually produces pressures well beyond what’s introduced into the expanse of the manifold…and with that it’s creating incredible temperatures too. This is because the relatively small turbine blades of a turbocharger must over-pressurize coming off the surface of the impellers in order to compensate for the small volume of air its capable of moving. This makes it very adiabatically inefficient, even if it were only generating a manifold boost of a few psi. However & in contrast, a supercharger is endowed with much larger impellers that have the luxury of spinning much slower. It moves a larger volume of air from a much lower rpm. This means its not heating the air nearly so much as a turbocharger. And this equates to a cooler, more oxygen rich induction.
I’m not saying an intercooler won’t provide some improvement; it will just be disproportionately less than from what gains you’d see from a turbocharger generating a net boost at the same psi level.
Also, intercoolers do add friction (& heat). Anytime you have a bend in a pipe with airflow under pressure, you’ve added heat from friction. However, the intrinsic feature of the intercooler is to provide a net cooling via convection that well offsets it’s inefficiencies.
Not to be a ‘nay-sayer’, but I doubt adding an intercooler to a COMPTECH SC running with stock pulleys is going to do much to boost output.
Digression: What makes intercoolers a necessity with turbos is that the turbocharger actually produces pressures well beyond what’s introduced into the expanse of the manifold…and with that it’s creating incredible temperatures too. This is because the relatively small turbine blades of a turbocharger must over-pressurize coming off the surface of the impellers in order to compensate for the small volume of air its capable of moving. This makes it very adiabatically inefficient, even if it were only generating a manifold boost of a few psi. However & in contrast, a supercharger is endowed with much larger impellers that have the luxury of spinning much slower. It moves a larger volume of air from a much lower rpm. This means its not heating the air nearly so much as a turbocharger. And this equates to a cooler, more oxygen rich induction.
I’m not saying an intercooler won’t provide some improvement; it will just be disproportionately less than from what gains you’d see from a turbocharger generating a net boost at the same psi level.
Also, intercoolers do add friction (& heat). Anytime you have a bend in a pipe with airflow under pressure, you’ve added heat from friction. However, the intrinsic feature of the intercooler is to provide a net cooling via convection that well offsets it’s inefficiencies.
I would bet the discharge from the blower on the TL is at least 250 degrees which is what my turbo car is at a moderate 18psi. I understand in theory, introducing friction like bends and an intercooler will increase temps but they are far, far outweighted by the cooling of the intercooler.
There is very little restriction in a properly sized intercooler. Hardly more than a straight piece of pipe. The pressure drop over the core is due to cooling, not restriction. The only problem with the supercharged setup is you don't have a way other than changing the pulley to bring boost back up.
My car is one of the earlier cars that originally had no intercooler and I can tell you from expericence that when I intercooled it, there was a difference before the boost guage moved off of 0.
10-04-2007, 06:36 PM
#127
Team Owner
Originally Posted by Eoanou
I have a question is it possible for you to just swap in shorter gears in the 5AT transmission?
10-04-2007, 10:23 PM
#128
tehLEGOman
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Originally Posted by AMGala
Why oh why a single outlet exhaust???
http://honda-portal.com/honda-videos.php?video_id=407
...cause the Japanese guys know what's good.
10-04-2007, 10:24 PM
#129
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Originally Posted by lookinco
I am thinking of a 6 mT swap as well. Actually I am looking for a sequential....good luck on your project!
10-05-2007, 06:37 AM
#131
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Originally Posted by lookinco
Working on the J-pipe right now. Will have update really soon!
10-05-2007, 11:43 AM
#132
'10 Hyundai Genesis Coupe
Originally Posted by I hate cars
I thought it would be nice just to lower the final drive ratio until I saw that stock it's nearly 5:1. Don't remember the actual ratio but it's so short I'm not sure you could find a shorter one.
I was thinking maybe a shorter 4th and 5th gear, the gear ratios on the Integra Type R are what I would be looking for.
10-05-2007, 12:28 PM
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Originally Posted by ACCURATEin
why oh why? haha. i'll show you why...
http://honda-portal.com/honda-videos.php?video_id=407
...cause the Japanese guys know what's good.
http://honda-portal.com/honda-videos.php?video_id=407
...cause the Japanese guys know what's good.
10-05-2007, 04:10 PM
#134
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Originally Posted by n00blike
the cute asian chick?
11-09-2007, 01:49 PM
#135
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Guess what i just ordered?
hint: $875
hint: $875
11-09-2007, 03:07 PM
#139
94 DC4 RS LSV/Turbo
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Originally Posted by chill_dog
A b16 for an engine swap?
but what is funnier is I have seen a 500hp b16... so
my guess if it cost 815 its worth a gander
11-10-2007, 02:08 AM
#142
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close guesses. whats this thread all about?
11-10-2007, 06:42 PM
#145
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Originally Posted by ACCURATEin
Guess what i just ordered?
hint: $875
hint: $875
11-11-2007, 08:02 PM
#146
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Originally Posted by I hate cars
I hope it's an intercooler. I guess you will lose a little boost, gain a little power, install the high boost pulley to restore boost and you'll have a lot more power in the end.
11-11-2007, 08:06 PM
#147
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The HKS FMIC was going to be special order and as much as i would have liked to get that one, i believe the greddy will suffice, it was less expensive too.
...its coming from california so hopefully friday of this week ill have it and will mount it to the car and make the neccessary cuts on the versus bumper. I will drive around with it on the car until it comes time to make the custom piping.
I'm excite! high five everybody!
...its coming from california so hopefully friday of this week ill have it and will mount it to the car and make the neccessary cuts on the versus bumper. I will drive around with it on the car until it comes time to make the custom piping.
I'm excite! high five everybody!
11-11-2007, 08:34 PM
#148
Ride around with it? lol i'd just wait till its fully mounted...would probably save embarrassment when someone asks about it...haha you've already waited this long, whats another month?
11-11-2007, 08:43 PM
#149
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Originally Posted by JJaber06
Ride around with it? lol i'd just wait till its fully mounted...would probably save embarrassment when someone asks about it...haha you've already waited this long, whats another month?
11-11-2007, 09:06 PM
#150
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Heres what the sucker looks like...
11-12-2007, 01:54 AM
#152
Originally Posted by ACCURATEin
Heres what the sucker looks like...
what im doing differently is using an intercooler that has inlet/outlet on opposing sides, but that may be the way to go + you'll need less piping too
11-12-2007, 04:27 AM
#153
13.19@105.48MPH
Nice , i will try to get some pics up for you guys in a few days on my finnished setup, i also have been running the HBP for over 5 months now with no problems but with he intercooler it will be safer. By the way nice intercooler .
11-12-2007, 12:12 PM
#155
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Originally Posted by blusap
nice! cant wait to see how this turns out. been wanting to do this for a loooong time. its the only thing stopping me from installing the HBP.
what im doing differently is using an intercooler that has inlet/outlet on opposing sides, but that may be the way to go + you'll need less piping too
what im doing differently is using an intercooler that has inlet/outlet on opposing sides, but that may be the way to go + you'll need less piping too
11-12-2007, 12:14 PM
#156
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Originally Posted by OMP Prelude
Nice , i will try to get some pics up for you guys in a few days on my finnished setup, i also have been running the HBP for over 5 months now with no problems but with he intercooler it will be safer. By the way nice intercooler .
Which type of intercooler and brand did you go with?
11-13-2007, 01:19 AM
#157
13.19@105.48MPH
ok its going to be abit longer. Today i was working on it and i found out that our car have alot of vacuum while idle, so if you guys are planing to build one i would use as little silicone couplers as possible. If you use too long of a silicon 90 degree it will colapse trust me i found out the hard way. So when i have time i will work on it again, for now i need a break
11-13-2007, 01:21 AM
#158
13.19@105.48MPH
Originally Posted by ACCURATEin
Sweet...those pics would be fantastic...i think everyone would love to see what you've come up with. And if you've got it finished i'm assuming you've cranked her up and everything is running smoothly!??!
Which type of intercooler and brand did you go with?
Which type of intercooler and brand did you go with?
11-13-2007, 04:23 AM
#159
Team Owner
Originally Posted by OMP Prelude
ok its going to be abit longer. Today i was working on it and i found out that our car have alot of vacuum while idle, so if you guys are planing to build one i would use as little silicone couplers as possible. If you use too long of a silicon 90 degree it will colapse trust me i found out the hard way. So when i have time i will work on it again, for now i need a break
11-13-2007, 11:20 AM
#160
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Originally Posted by OMP Prelude
ok its going to be abit longer. Today i was working on it and i found out that our car have alot of vacuum while idle, so if you guys are planing to build one i would use as little silicone couplers as possible. If you use too long of a silicon 90 degree it will colapse trust me i found out the hard way. So when i have time i will work on it again, for now i need a break