2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Greddy Profec b Spec II Help

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Old May 17, 2007 | 11:41 AM
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sirshan's Avatar
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Greddy Profec b Spec II Help

Hey guys...did a search and cant find much. I need to know what numbers I should be roughly around on my boost controller settings. I know every ones will be very different, but the number range is so big that I think Id get a better idea of how to tune it myself when I know what others are running.

I have the following + more...heres the important stuff:

- T04E 60 Trim
- RB Full Exhaust w/ 3" Downpipt
- 50mm Wastegate
- HKS Manifold
- Greddy Intercooler

Setting on my Profec are:

Lo - 94
Gain - 1
Set Gain/Boost - 12

Does this seem right? I have a 11.5lb spring and I want to boost around 14/15 max. Boost Cut is set to 16.5. As-is, can run through the gears and not boost creep most of the time...but sometimes it does. The catch is when it does run throgh with no boost creep, my boost sits at about 11/12lbs. What should I adjust to make bring my boost up?
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Old May 17, 2007 | 04:15 PM
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From: Who knows
30 pound spring in the wastegate
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