underdrive pulleys
#5
TECH Senior Member
Join Date: Apr 2004
Location: Texas
Posts: 6,157
Likes: 0
Received 0 Likes
on
0 Posts
For the money there are better gains IMO. This is assuming this would be your first mod? LS1s really do good from a free flowing exaust and intake. Then I would say cam. After you get those you can start working on supporting boltons
#6
Originally Posted by pornstar68
hey just wondering what info you guys have on underdrive pulleys are they worth the money
#7
On The Tree
iTrader: (1)
Join Date: Jan 2004
Location: Chicago Suburbs
Posts: 198
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Gloveperson
Yes and Yes.
They will get you about 5-10 RWHP freed up from the drivetrain. It is a very easy install and there are pretty much no drawbacks.
BTW, interesting S/N....
They will get you about 5-10 RWHP freed up from the drivetrain. It is a very easy install and there are pretty much no drawbacks.
BTW, interesting S/N....
Trending Topics
#9
If your car is stock or close to stock you should start with a lid then do headers,exhaust,and the other little stuff then when you do a cam do the pulley at the same time. What year is your car?
Ohh yeah the pulley is a great mod to do.
Ohh yeah the pulley is a great mod to do.
#10
TECH Senior Member
Join Date: Apr 2004
Location: Texas
Posts: 6,157
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Martingale
You guys using the stock belt with the underdrive crank pulley?
Nope. Different size belts. Theres a group purchase going on if anyones wants to get one at a really good price.
#11
TECH Fanatic
Join Date: Oct 2002
Location: Seattle,Wa.
Posts: 1,068
Likes: 0
Received 0 Likes
on
0 Posts
PROS: I was very happy with the power gains after the ASP pulley was installed.
CONS: My car is now very hard to steer at idle speeds while trying to park. It's so bad that I have to use all of my strength to turn the wheel in tight spots, my wife is not happy about this.
I'm going to have the idle increased a little and maybe try another pump. Other then that it's all good.
CONS: My car is now very hard to steer at idle speeds while trying to park. It's so bad that I have to use all of my strength to turn the wheel in tight spots, my wife is not happy about this.
I'm going to have the idle increased a little and maybe try another pump. Other then that it's all good.
#12
SSU's Drunk Typing Whore
iTrader: (47)
Join Date: Jan 2004
Posts: 4,609
Likes: 0
Received 0 Likes
on
0 Posts
I got the ASP pullies. I felt a slight differenece in power, and really like them. I have had no issues with them at all. But as said before, save this for later. Money can be spent better else where.
#14
Originally Posted by ULTIMATEORANGESS
for what they cost pullies are worth it.
it was one of my first mods because i got a great deal on a crank pulley setup complete for $180 shipped.
it was one of my first mods because i got a great deal on a crank pulley setup complete for $180 shipped.
#15
Originally Posted by red99vette
Who has the group purchase going on for these? I am interested in one for a 99 Corvette. Kaley
#16
TECH Senior Member
Join Date: Apr 2004
Location: Texas
Posts: 6,157
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by red99vette
Who has the group purchase going on for these? I am interested in one for a 99 Corvette. Kaley
Group purchase is here
https://ls1tech.com/forums/showthrea...=277653&page=1
#17
CT Hotness
iTrader: (5)
Originally Posted by 2MuchRiceMakesMeSick
You quoted the wrong person
Group purchase is here
https://ls1tech.com/forums/showthrea...=277653&page=1
Group purchase is here
https://ls1tech.com/forums/showthrea...=277653&page=1
#18
That's what she said...
iTrader: (8)
you will also need a new A/C compressor belt with the ASP pulley as it underdrives it as well (as i understand).
you can also order an underdrive alternator pulley, which isnt recommended if you have a huge stereo or somthing. how is it running one with all stock electronics?
you can also order an underdrive alternator pulley, which isnt recommended if you have a huge stereo or somthing. how is it running one with all stock electronics?
#19
Originally Posted by BlkZ28LS6
I am also interested in this topic, but before buying, it's good to ask questions: Can underdrive pulleys cause the car to run warmer since it slows down the water pump? Are all aftermarket pulleyes perfectly balanced? If they aren't could they cause knock retard? Do they help M6 cars rev more freely? And from reading threads I've seen quite a few people having trouble with installation (getting bolt out/stripping it). This is all I could come up with. Not trying to hijack the thread, just trying to come up with specific pros and cons. Thanks