need more boost

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Oct 25, 2005 | 12:54 AM

89ta383sc

Thread Starter

Junior Member

Joined: Apr 2005

Posts: 73

Likes: 0

From: sac, ca

Car: 89 ws6 trans am

Engine: 383 supercharged

Transmission: t-56

Axle/Gears: 9 inch 3.90's spooled

need more boost

I have a supercharged 383, and I have a vortech s-trim. my problem is at about 4300 rpms my boost stays at 8#. the old motor I woudl see it climb all the way to 6000. If I got a t-trim could I get 15# of boost with an intercooler?

thanx

Oct 26, 2005 | 01:54 PM

leeperryracing

Supreme Member

Joined: Apr 2004

Posts: 1,077

Likes: 0

From: Denver, CO

Car: cleanest '86 sport coupe around!!

Engine: 355ci twin 66mm turbos on e85

Transmission: built rmvb th400 w/ t-brake

Axle/Gears: 3.23

could be a simple case of belt slippage at higher rpms....figure out the bugs first before dumping money, the vortech S-trim can make "decent" boost.

Oct 27, 2005 | 02:36 AM

89ta383sc

Thread Starter

Junior Member

Joined: Apr 2005

Posts: 73

Likes: 0

From: sac, ca

Car: 89 ws6 trans am

Engine: 383 supercharged

Transmission: t-56

Axle/Gears: 9 inch 3.90's spooled

I am sure the belt is not slipping. One of buddies has the same step up and his car does the samething. He only sees 7#. That is with water injection.