find boost leak

x MadMAX DIESEL

<<<< No Horsepower
Dec 30, 2008
7,535
1
38
34
Lexington, Ky
I still can't hold rail pressure with both of my chips turned up. Bottle test turned up no fuel, I believe the most of my balance rates are in check, 8 and 5 run a bit high. Number 8 was at 5 last time i've checked. I run 14 psi from my lift pump. Hopefully it's just my stacking of chips thats got me... Otherwise I think me and Jeremy are in the same boat.

P.S. the most boost I've ever hit was 27 with the boost controller on kill mode, taped after IC in the aluminun intake
 

05lly2500hd

(903)293-6026
Feb 16, 2008
473
0
0
44
Texarkana, TX
I still can't hold rail pressure with both of my chips turned up. Bottle test turned up no fuel, I believe the most of my balance rates are in check, 8 and 5 run a bit high. Number 8 was at 5 last time i've checked. I run 14 psi from my lift pump. Hopefully it's just my stacking of chips thats got me... Otherwise I think me and Jeremy are in the same boat.

P.S. the most boost I've ever hit was 27 with the boost controller on kill mode, taped after IC in the aluminun intake
how were you monitoring boost at the time you hit 27?
 

x MadMAX DIESEL

<<<< No Horsepower
Dec 30, 2008
7,535
1
38
34
Lexington, Ky
how were you monitoring boost at the time you hit 27?

With an autometer gauge.. I don't have it in my sig because its just embarassing.. I'll get a pic maybe tomorrow.... It was only suppossed to be a temporary gauge untill I bought a set for my pillar...

It's duck taped on the top center of my steering colum :rofl: and it's been on there for about 3 months
 
Last edited:

05lly2500hd

(903)293-6026
Feb 16, 2008
473
0
0
44
Texarkana, TX
I still can't hold rail pressure with both of my chips turned up. Bottle test turned up no fuel, I believe the most of my balance rates are in check, 8 and 5 run a bit high. Number 8 was at 5 last time i've checked. I run 14 psi from my lift pump. Hopefully it's just my stacking of chips thats got me... Otherwise I think me and Jeremy are in the same boat.

P.S. the most boost I've ever hit was 27 with the boost controller on kill mode, taped after IC in the aluminun intake
funny, my balance rates showed #5 and #8 being the highest. Between the 8 of them, I'm anywhere from -3.66 up to +3.??
 

05lly2500hd

(903)293-6026
Feb 16, 2008
473
0
0
44
Texarkana, TX
called GM SM, they can test return rates and possibly one or two other tests. If I go this route, I'll have to ask for something on paper to post results here.