98 Camaro 5.3 s475 holley efi build LOTS OF PICS
08-25-2015, 05:53 PM
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98 Camaro 5.3 s475 holley efi build LOTS OF PICS 98 Camaro
5.3 LM7 120k mile untouched short block
862 heads pac 1218 valve springs
ARP head bolts
Ls6 intake and cam oil pump
double roller timing chain
s475 83mm 1.10 Ar T6
Non intercooled on E85
turbo smart race gate
innovative wastegate
simen deka 80lB injectors
Ebay Fuel rails
Dual walbro 255 intank pumps
Racetronix wiring kit 7psi hobbs switch
Holley Hp EFI with boost control and CO2 (not hooked up yet)
powerglide with a way to tight pro torque 2100 rpm stall
full weight full interior full tank of fuel weighed 3616 with me in it (160lbs)
I built the turbo kit with flipped truck added v bands
2.5in SS piping
Ive just been running off the wastegate spring self tuning the car last time out with the car I think the wastegate spring stuck closed or maybe it finally sealed??
The car made 16psi in 1st and 22.6psi in 2nd gear the car went 12.72 @ 126 with a HORRIBLE 2.25 60ft Im lucky the holley tuning was on and the learn helped save some of it as well. Im still very surprised the engine is still in 1 piece never ment to take it over 12-13 psi without methanol
Best prior to that was 13.7 at 110 with a 2.3 60ft at around 8psi which is were I was doing most of my tuning.
Some build Pics
5.3 LM7 120k mile untouched short block
862 heads pac 1218 valve springs
ARP head bolts
Ls6 intake and cam oil pump
double roller timing chain
s475 83mm 1.10 Ar T6
Non intercooled on E85
turbo smart race gate
innovative wastegate
simen deka 80lB injectors
Ebay Fuel rails
Dual walbro 255 intank pumps
Racetronix wiring kit 7psi hobbs switch
Holley Hp EFI with boost control and CO2 (not hooked up yet)
powerglide with a way to tight pro torque 2100 rpm stall
full weight full interior full tank of fuel weighed 3616 with me in it (160lbs)
I built the turbo kit with flipped truck added v bands
2.5in SS piping
Ive just been running off the wastegate spring self tuning the car last time out with the car I think the wastegate spring stuck closed or maybe it finally sealed??
The car made 16psi in 1st and 22.6psi in 2nd gear the car went 12.72 @ 126 with a HORRIBLE 2.25 60ft Im lucky the holley tuning was on and the learn helped save some of it as well. Im still very surprised the engine is still in 1 piece never ment to take it over 12-13 psi without methanol
Best prior to that was 13.7 at 110 with a 2.3 60ft at around 8psi which is were I was doing most of my tuning.
Some build Pics
10-20-2015, 11:21 PM
#3
Congrats on the new best! Are you running on pump gas? I also have a 98 Camaro and running dual pumps. I just used the the steel line you are using for the return as a second feed line. Then each rail gets a 3/8s feed, and using the 5/16 evap as return. But I am also on e85. Get some good fuel and turn it up!
10-21-2015, 08:38 AM
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Congrats on the new best! Are you running on pump gas? I also have a 98 Camaro and running dual pumps. I just used the the steel line you are using for the return as a second feed line. Then each rail gets a 3/8s feed, and using the 5/16 evap as return. But I am also on e85. Get some good fuel and turn it up!
I'm on e85 (actually about e90 as that's what I'm getting out of the pump currently) a on that pass I was at 84% injector duty cycle with with a base pressure of 53psi not sure if I'm out of injector deka 80s or if it's a pressure issue. I'm running an -8 feed and -6 return to the rails. So you run both pumps pumps all the time?