Pulley's ASP or SLP?
08-11-2005, 03:19 PM
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Pulley's ASP or SLP? I've pretty much decided to go with a pulley for my goat. Tbyrne has both ASP and SLP pulleys. Do any of you have experience with either of these brands? Is there a noticeable difference between the two in either performance or ease of installation? ASP also offers an alternator underdrive(-15%) any idea whether that is worth it as well as the primary pulley?
Ellis, do you need to tune for a pulley or is that "tune neutral". I am thinking of paying for priority shipping so I can get it on and to the track. I want that 13 before the end of the season!
Ellis, do you need to tune for a pulley or is that "tune neutral". I am thinking of paying for priority shipping so I can get it on and to the track. I want that 13 before the end of the season!
08-12-2005, 12:13 AM
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well i out acclerate my friends 01 Ws6 trans am m6 and i am an a4....but no i havent had the chance to take my car to the track yet and my dyno numbers are bad becuase car is horribly out of tune....but they are 280rwhp and 628ft lbs torque ya i know thats wrong as i said out of tune and on a mustang dyno
08-12-2005, 12:17 AM
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628 ft lbs? what're ya sprayin off idle? 
I've been on the fence about pulleys, anybody know what they're worth in the quarter? Can you really feel a seat of the pants difference?
I've been on the fence about pulleys, anybody know what they're worth in the quarter? Can you really feel a seat of the pants difference?
08-12-2005, 08:06 AM
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I had the ASP underdrive with the Alt overdrive on my car & I gained almost nothing at the dyno or track. I hear a lot of people talk about them, but I was pretty meticulous in documenting all my mods & I know what did & did not work on my car. The car did seem to run a few * hotter, and they do not fit with dbl roller timing chains (which is why it's on Tranzors car now)
Personally I would buy MAF ends if you want more power & no tuning issues. I found them to be worth about 2/10ths at the track when you have a lid & K&N on an F-body (should be about the same with a CAI on a GTO). Cheaper & MUCH easier to install too.....
Personally I would buy MAF ends if you want more power & no tuning issues. I found them to be worth about 2/10ths at the track when you have a lid & K&N on an F-body (should be about the same with a CAI on a GTO). Cheaper & MUCH easier to install too.....
Last edited by WAHUSKER; 08-12-2005 at 08:45 AM.
08-12-2005, 08:20 AM
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Originally Posted by Rokko
628 ft lbs? what're ya sprayin off idle?
I've been on the fence about pulleys, anybody know what they're worth in the quarter? Can you really feel a seat of the pants difference?
I've been on the fence about pulleys, anybody know what they're worth in the quarter? Can you really feel a seat of the pants difference?
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08-12-2005, 02:52 PM
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Originally Posted by WAHUSKER
Personally I would buy MAF ends if you want more power & no tuning issues. I found them to be worth about 2/10ths at the track when you have a lid & K&N on an F-body (should be about the same with a CAI on a GTO).
08-12-2005, 03:21 PM
#9
Originally Posted by Crisisman
Alright, help my newbieness...I've seen bigger MAFs for sale. I've seen people pull screens from MAFs. But I don't know what a "MAF end" is or what "lid" refers to. Someone throw me a friggin' bone here.
08-12-2005, 03:24 PM
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MAF = Mass Air Flow
Unscreened - Screened
and here's a Lid, but I don't think a GTO has one, Ellis says your CAI (Cold air intake)is basically your Lid:
Unscreened - Screened
and here's a Lid, but I don't think a GTO has one, Ellis says your CAI (Cold air intake)is basically your Lid:
08-12-2005, 07:03 PM
#11
BTW We WILL have to tune for MAF ends I have had good luck with Pullies. LT1 cars did not show much of a gain because they turned the Water pump the same speed even with no belt LS1 cars (like cars of old) seemed to show more.
The Idea came from the OLD Z28s the high winding motors would blow up accessory's so they slowed them down. At the same time they picked up a few HP 
Now on my 95 I never documented a change at all. I just put them on when the blower came off. On my 74 Z28 with a 327 it took me from low 14.2s to 14.oh on a regular basis. I ahve been sold since
I have had good luck with Pullies. LT1 cars did not show much of a gain because they turned the Water pump the same speed even with no belt LS1 cars (like cars of old) seemed to show more.The Idea came from the OLD Z28s
the high winding motors would blow up accessory's so they slowed them down. At the same time they picked up a few HP Now on my 95 I never documented a change at all. I just put them on when the blower came off. On my 74 Z28 with a 327 it took me from low 14.2s to 14.oh on a regular basis. I ahve been sold since
Last edited by TwoFast4Lv; 08-12-2005 at 07:09 PM.
08-12-2005, 09:04 PM
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I have the ASP's on my car and while I did not document hp differances ala dyno or track times I did definitely notice a differance in how quick it would rev just sitting there in neutral blipping the throttle. WS6.com documented a 6-7 hp increase with them 
08-12-2005, 10:29 PM
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I had an ASP underdrive pulley installed and I picked up a full tenth out at Monroe on a 1/8 mi track. Even the guys I raced against noticed I was running faster. The only thing I don't like is the T/A is harder to steer @ idle.
I know this to be true as it was the only mod I did between racing weekends. It got me to the 7.6xx.
I know this to be true as it was the only mod I did between racing weekends. It got me to the 7.6xx.
08-13-2005, 02:13 AM
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Thanks for explaining things. I didn't realize the MAF could be customized to such a high degree.
It sounds like everyone here who has a pulley has gone w/ASP. I am thinking I'll probably only do the main pulley, and not the alternator pulley. I do love cranking the stereo, running the a/c and the lights are always on. With both pulleys you apparently need an extra 150 rpm on idle to keep the same charge level as with just the primary pulley.
Hey Ellis, you have an impact wrench and whatever other tools are needed? If I order on Monday and Fed-Ex it I could have it available for install on Wednesday.
It sounds like everyone here who has a pulley has gone w/ASP. I am thinking I'll probably only do the main pulley, and not the alternator pulley. I do love cranking the stereo, running the a/c and the lights are always on. With both pulleys you apparently need an extra 150 rpm on idle to keep the same charge level as with just the primary pulley.
Hey Ellis, you have an impact wrench and whatever other tools are needed? If I order on Monday and Fed-Ex it I could have it available for install on Wednesday.