Vortech pulley question
Thread Starter
Racer
Joined: Aug 2003
Posts: 324
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From: Frederick MD
Vortech pulley question
I have a standard Vortech SQ setup on my Z06. It makes ~6psi boost with the 34 tooth pulley on the supercharger. I have a T trim that I bought from a member on here.
Does anyone have any insight on the pulley size to make 10-12psi on a stock motor (keep in mind I'm making 6psi with a 34 tooth on the SQ). Will this swap require a jackshaft pulley change?
I'm hoping to do some LS6 durability testing (with methanol) this summer
Thanks!
Does anyone have any insight on the pulley size to make 10-12psi on a stock motor (keep in mind I'm making 6psi with a 34 tooth on the SQ). Will this swap require a jackshaft pulley change?
I'm hoping to do some LS6 durability testing (with methanol) this summer
Thanks!
Instructor
Joined: Nov 2001
Posts: 154
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From: Make it 3 yards motherf**ker and we'll have us an automobile race.
You should be close to 10-12 psi with the 34 tooth pulley. If you want to make more , they also have 30 tooth and 28 tooth supercharger pulleys.
Thread Starter
Racer
Joined: Aug 2003
Posts: 324
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From: Frederick MD
Originally Posted by butcher
You should be close to 10-12 psi with the 34 tooth pulley. If you want to make more , they also have 30 tooth and 28 tooth supercharger pulleys.
I know this is an old post, but thanks for the response. I have 28, 30, 32 and 34 right now. I'll try the 34 first.
Banned Scam/Spammer
Joined: Jul 2006
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From: Simi Valley CA
I agree that you should already be seeing 10 lbs. Are you sure your impeller is ok and bearings not worn? I was seeing 4-6 lbs boost on my VSQ II (mounted on my gmc) so I went to a 3.12 (ribbed) and got the boost up, but only to find out my impeller was worn. Vortech rebuilt it, and WHAM, now I was up 12-14 lbs. I put the stock pully back on and was 6-8 lbs.
Thread Starter
Racer
Joined: Aug 2003
Posts: 324
Likes: 0
From: Frederick MD
Originally Posted by Todd157k
I agree that you should already be seeing 10 lbs. Are you sure your impeller is ok and bearings not worn? I was seeing 4-6 lbs boost on my VSQ II (mounted on my gmc) so I went to a 3.12 (ribbed) and got the boost up, but only to find out my impeller was worn. Vortech rebuilt it, and WHAM, now I was up 12-14 lbs. I put the stock pully back on and was 6-8 lbs.
The standard kit I have is designed to make around 6-7psi with the 34 tooth pulley. I'm upgrading to the T-trim from the SQ. Vortech was no help in telling me how to get to 10-12psi with the T-trim with all other parts remaining the same.
I am almost ready to test out the T-trim, I'll report back what I see with the 34 and if I have to go smaller on the T-trim to get my desired boost.
I already have ~550rwhp @ 6psi on the SQ with just a set of long tubes. I'm hoping to make around 600-620rwhp with the extra boost/T-trim and meth on my stock 03
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