Anyone using an underdrive crank pulley?
Thread Starter
Racer
Joined: Oct 2000
Posts: 319
Likes: 0
From: Frisco TX
Anyone using an underdrive crank pulley?
Did a search and saw nothing on the subject - seems lock many Fbody people are using a underdrive pully - anyone on a vette using one? If so, what brand, your experiences with it - HP gain, side effects, etc
Thanks for your thoughts ...
Thanks for your thoughts ...
Safety Car
Joined: Mar 2002
Posts: 4,928
Likes: 1
Cruise-In V Veteran
St. Jude Donor '09
Re: Anyone using an underdrive crank pulley? (Z28Z28)
Many have used the ASP 25% underdrive pulley.There have been a number of failures of the ASP ( not a huge number). Some , with bigger HP motors, are using the ATI damper which is 10% underdrive.Here's a link for current discussion http://forums.corvetteforum.com/zerothread?id=559649 :cheers:
Melting Slicks
Joined: Mar 2001
Posts: 2,372
Likes: 51
From: New Milford CT
Re: Anyone using an underdrive crank pulley? (Z28Z28)
I am using an ASP underdrive pulley. No problems and I can not even tell it is there. Except it takes different belts! Should be good for 5/10 easy hp.
Le Mans Master
Joined: Aug 2001
Posts: 6,071
Likes: 297
From: Savannah GA
Cruise-In IV Veteran
Re: Anyone using an underdrive crank pulley? (CJS)
I had an ASP pulley but with my stereo it would kill my battery pretty quickly if I was at idle too long. I went back to stock. My bud had an ASP pulley that literally flew apart tearing up a few things in the process. Your best bet is an ATI pulley.
Le Mans Master
Joined: Mar 2002
Posts: 5,718
Likes: 2
From: Flower Mound TX
Cruise-In V Veteran
St. Jude Contributor
Re: Anyone using an underdrive crank pulley? (Z28Z28)
Did a search and saw nothing on the subject -
:cheers:
Team Owner
Joined: Mar 1999
Posts: 28,753
Likes: 9
From: San Jose/Bear Valley CA
CA Events Coordinator
Re: Anyone using an underdrive crank pulley? (Z28Z28)
I had one on my car for over a year. I picked up HP and TQ with it. It ran without any problems at all. I took it off to install the S/C setup that I have now.
vetterdstr :cheers:
vetterdstr :cheers:
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Thread Starter
Racer
Joined: Oct 2000
Posts: 319
Likes: 0
From: Frisco TX
Re: Anyone using an underdrive crank pulley? (C5 StockSwap)
Pardon me Mr C5 Stockswap for my poor search efforts ..... So you "got me" your efforts turned up 33 responses - don't you have anything better to do that to try and "best me." If you look I've been on the board awhile so your efforts to teach me IMHO would have been better spent trying to help answer my "repeated" question. I am so tired of having people come in on this forum and correct others for not searching or now not searching in the right spot ... has it ever occured to you that without repeated questions we would not hear about new experiences or have many posts to reply too ... if you want to harp on something how about all those people who post replies to subjects and the reply is just a post count increase with the reply having no real "content" ..... Sorry I'll get off my soap box now - but those of you who are so critical about spelling or searching really get to me, if you don't like the post - don't open it up!
- to you too ..... :cheers:
- to you too ..... :cheers:
Race Director
Joined: Apr 2003
Posts: 19,352
Likes: 654
From: Tampa, Florida
Re: Anyone using an underdrive crank pulley? (Z28Z28)
You need to calm down...he was just giving you advice to make your next search effort more worthwhile and informative.....I'm tired of people saying they searched but never did....Hey, I didnt know threads went to archive so quick....now I search there first.
Melting Slicks
Joined: Feb 2002
Posts: 2,613
Likes: 0
From: Winston Salem NC
Re: Anyone using an underdrive crank pulley? (Z28Z28)
I have an ASP and it's doing fine. Some have found it necessary to machine the angle cut that is around the hub, about 3mm. It might or might not rub the case. I did mine to be safe.
I also think the search advice was meant in a positive vein.
I also think the search advice was meant in a positive vein.
Le Mans Master
Joined: Mar 2002
Posts: 5,718
Likes: 2
From: Flower Mound TX
Cruise-In V Veteran
St. Jude Contributor
Re: Anyone using an underdrive crank pulley? (jim2527)
You need to calm down...he was just giving you advice to make your next search effort more worthwhile and informative.....I'm tired of people saying they searched but never did....Hey, I didnt know threads went to archive so quick....now I search there first.
Thread Starter
Racer
Joined: Oct 2000
Posts: 319
Likes: 0
From: Frisco TX
Re: Anyone using an underdrive crank pulley? (C5 StockSwap)
C5 Stockswap - first off let me say I did "go off on you" and I am Sorry ..... I know you were just trying to help with the archieve angle - please keep up the efforts to help others .......
As far as search's go - seems some people do it and some don't and some get upset at those that don't, etc .... as I said, I just hope everyone will tolerate those that just want to "post up" - unless we have a bandwidth issue on this forum I don't see the harm as it generally brings in new dialog on the subject ... and for those that don't like the "repeated" topic, then don't open it. Sorry, I too will .... :rant:
As far as search's go - seems some people do it and some don't and some get upset at those that don't, etc .... as I said, I just hope everyone will tolerate those that just want to "post up" - unless we have a bandwidth issue on this forum I don't see the harm as it generally brings in new dialog on the subject ... and for those that don't like the "repeated" topic, then don't open it. Sorry, I too will .... :rant:
