Hello TB Community. I discussed with all my local buick friends and they suggested I come here to get some guidance. My issue is that while under wide open throttle the boost jumps from 20-17 and back to 20 and the car feels not right. It was 100% stock 2 weeks ago and before I keep modifying I want to correct this problem. The MV on the scanmaster showed 032 while hitting the recall button at 38mph. The other readings were in specs of the directions received with the scanmaster. The mods are in my sig but here is what I have done so far:
1) DW 300 fuel pump
2) Racetronix Hotwire with the intermediate in tank wire upgraded
3) 80 lb Injectors
4) E85 converted with TT 5.7 chip
5) Caspers volt booster
6) RJC front mount intercooler
7) adjustable fuel pressure regulator set at 47lbs line off @ idle (low as it will go)
8) RJC 3" downpipe
9) stock turbo (just ordered a Precision 6262)
10) stock air box (ordered Tim man 3.5" with LS1 mass air meter)
11) stock cam and valve springs and stock heads.
I still have a 2 bar map sensor. Could this be an issue? Any guidance would be appreciated. I want to figure this out before I continue adding parts.
1) DW 300 fuel pump
2) Racetronix Hotwire with the intermediate in tank wire upgraded
3) 80 lb Injectors
4) E85 converted with TT 5.7 chip
5) Caspers volt booster
6) RJC front mount intercooler
7) adjustable fuel pressure regulator set at 47lbs line off @ idle (low as it will go)
8) RJC 3" downpipe
9) stock turbo (just ordered a Precision 6262)
10) stock air box (ordered Tim man 3.5" with LS1 mass air meter)
11) stock cam and valve springs and stock heads.
I still have a 2 bar map sensor. Could this be an issue? Any guidance would be appreciated. I want to figure this out before I continue adding parts.
