XLR8 Performance Stock Diameter Crank Pulley!!!!
05-17-2010, 07:46 PM
#1
XLR8 Performance Stock Diameter Crank Pulley!!!!
XLR8 Crank Pulleys are lightweight aluminum pulleys manufactured for Excelerate Performance by Unorthodox Racing. Each pulley is designed and manufactured here in the U.S. using the latest CAD software. We use only the finest U.S. produced materials available today. Our manufacturing processes follow strict quality control measures ensuring superior products that are attractive, durable, and most of all reliable. Our pulleys are held to .001” tolerances, usually reserved for aircraft, medical, military and space manufacturing programs. All pulleys are CNC machined and 0 gram balanced and carry a full warranty from Unorthodox Racing.
http://store.excelerateperformance.c.../i-328547.aspx
These pulleys are lightweight stock diameter aluminum crank pulleys. That means that it is a perfect choice for all vehicles but especially important for all those customers who have large stereo systems or superchargers. And they only weigh 13 oz each. Good in stock and ready to ship!!!
05-19-2010, 03:16 AM
#4
TF500
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05-19-2010, 12:30 PM
#6
Advanced
I did a bunch of research before going for a RSX-S crank pulley... 
Stock TSX steel crank damper dia------ 6.125", 4.6 lbs.
Stock K20A2/PRB steel crank damper----5.80", ___ lbs.
Stock K20Z1/PRC steel crank damper----5.40", 4.2 lbs. US$110. Actual US$160 (2005-06 RSX-S)
Fluiddamper steel crank damper-------- 5.875", 6.5 lbs, US$350.
ATI street aluminum crank damper----- 5.500", 3.6 lbs, US$330.
Alutec alum crank pulley----- 5.8", __ lbs, US$250.
UR alum crank pulley-------- 5.125", 0.75 lbs, US$___, (US$350 for the kit.)
NST alum crank pulley------- 5.2", 0.81 lbs, US$125.
T1R alum crank pulley--------5.8", 1.43 lbs, US$180.
Stock TSX steel crank damper dia------ 6.125", 4.6 lbs.
Stock K20A2/PRB steel crank damper----5.80", ___ lbs.
Stock K20Z1/PRC steel crank damper----5.40", 4.2 lbs. US$110. Actual US$160 (2005-06 RSX-S)
Fluiddamper steel crank damper-------- 5.875", 6.5 lbs, US$350.
ATI street aluminum crank damper----- 5.500", 3.6 lbs, US$330.
Alutec alum crank pulley----- 5.8", __ lbs, US$250.
UR alum crank pulley-------- 5.125", 0.75 lbs, US$___, (US$350 for the kit.)
NST alum crank pulley------- 5.2", 0.81 lbs, US$125.
T1R alum crank pulley--------5.8", 1.43 lbs, US$180.
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MikeMurphy (03-02-2013)
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05-22-2010, 11:32 AM
#12
9th Gear
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05-22-2010, 12:21 PM
#13
There have been a number of dynos on the UR pulley sets so far. The crank pulley is the power gainer in the set.
https://acurazine.com/forums/showthr...ht=pulley+dyno
https://acurazine.com/forums/showthr...ey+dyno&page=2
Also check page 1 of that link to see the installation info from JTso.
https://acurazine.com/forums/showthr...ht=pulley+dyno
https://acurazine.com/forums/showthr...ey+dyno&page=2
Also check page 1 of that link to see the installation info from JTso.
05-22-2010, 03:14 PM
#14
Rep'n Taxbrain.com
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Pulleys haven't really been an option for me before since I have an SC, so I have a few questions:
Would getting this pulley effect gas mileage?
Since it's lighter, would the car decelerate faster when you let off the gas? (Is less momentum produced since the pulley is so much lighter?)
Does it effect idling with the AC and stereo on at stop lights? (I run a lot of electronics in my car)
I'm really thinking about getting this pulley. I think it would help with the long gearing of the AT transmission and also with the minimizing the amount of power loss with the engine spinning the SC blower.
Does everyone else seem to like their UR pulleys? Any problems? Pros, cons?
Would getting this pulley effect gas mileage?
Since it's lighter, would the car decelerate faster when you let off the gas? (Is less momentum produced since the pulley is so much lighter?)
Does it effect idling with the AC and stereo on at stop lights? (I run a lot of electronics in my car)
I'm really thinking about getting this pulley. I think it would help with the long gearing of the AT transmission and also with the minimizing the amount of power loss with the engine spinning the SC blower.
Does everyone else seem to like their UR pulleys? Any problems? Pros, cons?
05-22-2010, 06:11 PM
#15
Someone stole "My Garage"
Pulleys haven't really been an option for me before since I have an SC, so I have a few questions:
Would getting this pulley effect gas mileage?
Since it's lighter, would the car decelerate faster when you let off the gas? (Is less momentum produced since the pulley is so much lighter?)
Does it effect idling with the AC and stereo on at stop lights? (I run a lot of electronics in my car)
I'm really thinking about getting this pulley. I think it would help with the long gearing of the AT transmission and also with the minimizing the amount of power loss with the engine spinning the SC blower.
Does everyone else seem to like their UR pulleys? Any problems? Pros, cons?
Would getting this pulley effect gas mileage?
Since it's lighter, would the car decelerate faster when you let off the gas? (Is less momentum produced since the pulley is so much lighter?)
Does it effect idling with the AC and stereo on at stop lights? (I run a lot of electronics in my car)
I'm really thinking about getting this pulley. I think it would help with the long gearing of the AT transmission and also with the minimizing the amount of power loss with the engine spinning the SC blower.
Does everyone else seem to like their UR pulleys? Any problems? Pros, cons?
However, I think it'd help your AT issues as it will allow the engine to spin up a bit easier, and also, it should not affect idle or accessories (voltage) at all, as its stock diameter.
I love my UR pulleys, they were one of the best bang-for-the-buck mods I got (aside from Hondata, and a RSB). The improvement is noticeable from 0rpm to redline. With the stock diameter set from Excelerate, I think the impact would be a bit less performance than the UR set (not being underdriven), but still very noticeable due to the exponential weight savings on the rotating mass attached to the crank. Like lightweight wheels, even stock size in a lighter format will allow the car to accelerate a bit quicker as there's less inertia to overcome.
05-26-2010, 01:42 PM
#16
if this would of only came out a year ago before i got my NST pulley =/
mentioned above there stock diameter is smaller then the one i had and was told that some TSX pulley diameters are different.. wasnt sure if it was true or not.. but it seemed like a k20 size crank pulley not a TSX one.. either way.. had it a year with no issues but would of loved a UR one though
mentioned above there stock diameter is smaller then the one i had and was told that some TSX pulley diameters are different.. wasnt sure if it was true or not.. but it seemed like a k20 size crank pulley not a TSX one.. either way.. had it a year with no issues but would of loved a UR one though
05-27-2010, 07:37 PM
#17
Pulleys haven't really been an option for me before since I have an SC, so I have a few questions:
Would getting this pulley effect gas mileage?
Since it's lighter, would the car decelerate faster when you let off the gas? (Is less momentum produced since the pulley is so much lighter?)
Does it effect idling with the AC and stereo on at stop lights? (I run a lot of electronics in my car)
I'm really thinking about getting this pulley. I think it would help with the long gearing of the AT transmission and also with the minimizing the amount of power loss with the engine spinning the SC blower.
Does everyone else seem to like their UR pulleys? Any problems? Pros, cons?
Would getting this pulley effect gas mileage?
Since it's lighter, would the car decelerate faster when you let off the gas? (Is less momentum produced since the pulley is so much lighter?)
Does it effect idling with the AC and stereo on at stop lights? (I run a lot of electronics in my car)
I'm really thinking about getting this pulley. I think it would help with the long gearing of the AT transmission and also with the minimizing the amount of power loss with the engine spinning the SC blower.
Does everyone else seem to like their UR pulleys? Any problems? Pros, cons?
No the car will not decelerate faster like a lightweight flywheel would. It is a similar idea to the lightweight flywheel but the flywheel has a larger impact on this.
It's a stock diameter pulley so it will drive the accessories just like the factory pulley did.
UR's quality is hands down above and beyond any other pulley manufacturer I have seen. Each pulley goes through a rigorous quality control process to ensure superb balance.
08-05-2010, 12:18 PM
#24
Just click the link.
Probably not. I haven't seen enough demand to produce an exhaust.
02-19-2011, 01:07 PM
#31
Racer
I had mine installed yesterday, and it's a great upgrade. Getting off the line is much easier and smoother now (I have a 6MT), and the engine is noticeably more responsive to the throttle. It's amazing how heavy the stock pulley is by comparison.
Word of warning though: the shop could not get it off with a breaker bar or an impact wrench; they had to get a special-purpose tool (which thankfully the nearby parts store happened to have in stock... whew).
Word of warning though: the shop could not get it off with a breaker bar or an impact wrench; they had to get a special-purpose tool (which thankfully the nearby parts store happened to have in stock... whew).
02-24-2011, 09:32 PM
#32
Three Wheelin'
IF YOU HAVE ONE FOR MY 6SP CL-S, I'LL TAKE ONE.
I need to get some springs from you guys as well.
do you take credit card, i do not have pay pal?
I need to get some springs from you guys as well.
do you take credit card, i do not have pay pal?
02-28-2011, 07:00 PM
#33
sales@excelerateperformance.com
203-483-6100
03-04-2011, 11:16 AM
#34
El Cunado
I'm very interested in getting this and the only real hesitation is paying for installation out of fear that I'd break my crank pulley bolt. I see that many people have had great struggle in getting the original crank pulley off.
Has anyone broken their crank pulley bolt while trying to install this?
Has anyone broken their crank pulley bolt while trying to install this?
03-04-2011, 11:24 AM
#35
Advanced
The crank pulley is a large 6 point grade 8 bolt. You are not going to break it or strip it or anything else.
With a manual transmission, breaking it loose is no problem using the engine starter. Getting it tight enough to torque spec is difficult though.
With a manual transmission, breaking it loose is no problem using the engine starter. Getting it tight enough to torque spec is difficult though.
03-04-2011, 11:32 AM
#36
El Cunado
What do you mean by "using the engine starter"?
03-04-2011, 11:36 AM
#37
Advanced
This thread has tons of TSX crank pulley info, installation tips, results, etc...
Including the starter trick to break the crank pulley bolt loose. It's quick & easy.
https://acurazine.com/forums/1g-tsx-performance-parts-modifications-126/jtsos-ur-underdrive-pulleys-installation-666337/
Including the starter trick to break the crank pulley bolt loose. It's quick & easy.
https://acurazine.com/forums/1g-tsx-performance-parts-modifications-126/jtsos-ur-underdrive-pulleys-installation-666337/
03-04-2011, 11:54 AM
#38
Advanced
03-04-2011, 12:03 PM
#39
El Cunado
I don't see the starter trick in that thread but I found this video: http://www.youtube.com/watch?v=O9qnvG_TcFo I'm guess you just get someone or something to hold the wrench in place while you start the engine quickly and temporarily (while preventing ignition)?
I have a solid breaker bar and pipes to use as an extension though so it doesn't look like a big deal after looking further into it. I'll have to investigate a torque wrench to make sure I can get it within specification.
I'm going to bounce the idea around in my head some more though it's probably not necessary since I do want this.
I have a solid breaker bar and pipes to use as an extension though so it doesn't look like a big deal after looking further into it. I'll have to investigate a torque wrench to make sure I can get it within specification.
I'm going to bounce the idea around in my head some more though it's probably not necessary since I do want this.