Pulley size on D1SC??
Thread Starter
Teching In
Joined: Feb 2005
Posts: 11
Likes: 0
Pulley size on D1SC?? I just installed my prochager on my car. Bought the D1SC with 8lb. Car is stock except for catback, but I am only making 4lbs of boost. Pulley size is 4.75. Does anyone know if this is the correct pulley? Bought the whole kit new so I think maybe they sent wrong size pulley? Any info would be appreciated.
Teching In
Joined: Sep 2003
Posts: 47
Likes: 0
From: de, usa
That should be the correct pulley size for 8 psi on a d-1sc, I just tried to measure mine (on the car and in a tight spot) and I measured it at a little under 5 in. I do remember that the same size pulley that makes 8psi on a d-1 only makes 5 psi on the p-1. Recheck all of your hose clamps to make sure they're not leaking, and make sure your belt is not slipping. Good luck
That is strange that you have a 4.75" pulley. I must be wrong, but I was thinking the 4.50" pulley was the largest size available with the eight rib kit.
I wonder if you are losing boost through the surge valve. You might want to check it out, as you should be making a lot more boost than what you are seeing. I would also check to make sure your boost gauge is correct, you might want to borrow one. Bob
I wonder if you are losing boost through the surge valve. You might want to check it out, as you should be making a lot more boost than what you are seeing. I would also check to make sure your boost gauge is correct, you might want to borrow one. Bob
Thread Starter
Teching In
Joined: Feb 2005
Posts: 11
Likes: 0
Boost gauge I used was brand new, and I tried disconnecting the vacum line to the surge valve to be sure it was closed. Still only got four pounds. Is it possible they just sent wrong size pulley with the kit?
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Originally Posted by RiderofDragon
Yes that is the size of the pulley
