underdrive crank and power steering
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Supreme Member
Joined: Feb 2003
Posts: 5,740
Likes: 3
From: Glen Allen, VA
underdrive crank and power steering
For those of you with an underdrive crank pulley, did you notice an increase in steering stiffness, or any changes in the steering feel?
Supreme Member
Joined: Jan 2002
Posts: 3,852
Likes: 1
From: Valley of the Sun
Car: 82 Z28
Engine: Al LT1 headed LG4 305
Transmission: TH350
Axle/Gears: 3.73 posi with spacer
Its just a bad idea, alot of people have done it. It sucks and is crap and they take it off.
Thread Starter
Supreme Member
Joined: Feb 2003
Posts: 5,740
Likes: 3
From: Glen Allen, VA
Thanks for that great insight. Anyways, I have a 10% underdrive on my LS1 and have noticed a slight increase. I have a 25% on my third gen, and have yet to install it, but was wondering if anyone could let me know what you observed on your car. Can anyone actually answer the question?
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iTrader: (3)
Joined: Sep 2003
Posts: 6,859
Likes: 14
From: Cypress, California
Car: 1989 GTA
Engine: 369 TPI
Transmission: 4L60E
Axle/Gears: 3.70 Nine Bolt
I installed the SLP version on my Trans Am around 1991 and did not notice any difference. However my car idles at 700rpm. Allen
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