still need some help

[frisko]

ok i got my sy awhile back and had some 96 vortec heads put on it.as well as all this stuff that was in it when i got itfrom seller"

4 bolted block with Milodon Nodular Caps and ARP Studs
Shot peened and nitrided crank
Eagle H beam rods
Speed Pro forged turbo pistons
Fully balanced rotating assembly
Fluid Damper
ARP head studs
Comp Cam – Rockford Racecraft grind
75lb injectors
Fast engine management- laptop tuneable
Applied Technologies and research headers
Polished precision 54 turbo
Precision turbo downpipe with cutout
Kenne Bell 3” Exhaust
MSD ignition and coil
Rockford Racecraft billet fuel pressure regulator
Rockford Racecraft fuel pump
Applied Technologies intercooler w/ sureflow 24/7 pump
RPM turbo drain back
Built Transmission
B&M Transmission Cooler
Heavy Duty Remote oil filter lines
Rockford Racecraft oil pan
Rebuilt front axel shafts
Rebuilt rear drive shaft
New Radiator
Applied Technologies cold air kit and battery relocation
Auto meter electric fuel pressure gauge, boost gauge w/ peak warning, and trans temp gauge on 3 gauge pod on driver side a pilar.
Greddy Profec B-spec 2 boost controller
Approxamatly 500 hp, it has never been on a dyno. I have well over $20,000 into the drivetrain. "


ok thats alot of stuff right!!! and it should fly if it had wings but (and i'm a first time sy owner) it dosnt feel now where close to "running" it has a sputter on take off doesn't keep you in back of your seat till i let off the gas.

so i think it might be a combination of to much or not enough gas,spark,fuel, air, to big of injectors????????? the guys that supposedly fixed it/installed the 96 heads. tuned it in and well like i said its not where i think it should be.
so if anyone has any ideas or knowledge about how to go about this please let me know. im in tucson, AZ now.

 

[Bill Z]

Re: still need some help

Seeing how you are new to Sys, I’ll try to help.

Without being there it is more difficult.

Impressive list of stuff.

I apply mods one at a time to keep complications down. This could be more than one of your mods causing issues.

I see that you have 75Lb injectors but I don’t see you mentioning a fuel pressure regulator or high volume fuel pump. Make sure you have at least 75 Lb of fuel to the injectors.

Make sure that all of your vacuum issues are resolved. I cap off all of my vacuum ports and test drive. Then I add back vacuum lines one at a time with testing between to find the one with an issue.

To get down hard with these trucks you do realize that you have to build up boost first by holding the break? Just checking here.

Good luck with your truck. Ya gotta love these trucks.