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No boost in first?!?!

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siceclipse

20+ Year Contributor
1,681
12
Jun 26, 2003
FFLD County, Connecticut
hey guys i could really use some help here. my car doesn't make any boost, all through first gear. as soon as i put it into second me gauge shoots up to 12 (where its set) and holds there. same with all other gears. so whats up with first. no boost at all. sometimes when i floor it, let off quickly and then get back on it in first my gauge will read 5psi max and then the usual 10-12 psi second gear and up. by the way this is with the T-25.

if anyone could help it would be deeply apreciated.
 
Your mods state that you have a big T28...But anyways, unless you're mashing it in first, most 2g's don't make boost in first (Mine doesn't and it's lightly modded)

If you're that into making boost in first, just take off in first normal and mash it towards redline, you'll probably make boost.
 
You don't have enough load on the engine to make boost in first. Don't try for it. Get out of first as soon as you can, and get into the production gears.
In first gear, the turbine can't quite put out enough air to back up the intake and produce boost.
 
Ditto, the only way you will really make boost in first is with the drag strip launch, 5000 and feather. No need to do that on the highway so just throw it in second.
 
thanks guys, as soon as i get home i'll............ oh wait there is nothing i can do. but really thanks for clearing that up, it was really starting to get to me.


Oh and the t-28 is gone im back to the t-25 again. thats why i was surprised when i wasnt making boost in first with the smallest, most quick spooling turbo ever made.
 
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