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Old 06-29-2025, 01:25 PM   #1
19Nasty1le
Craig
 
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Drives: 2019 ZL1 1LE
Join Date: Jan 2019
Location: Peterborough, ON Canada
Posts: 443
How much boost??

Just curious here, just had my car finished and I have a Jokerz Race Port with 2.5 / 9.65 pulley combo 2” Kooks etc and it only made 15psi. Is this normal? Most the similar builds I see online are running 17-18psi but I guess some did use a 2.3/9.17 combo etc.

Car baselined 560/528 with a Roto-Fab and Corsa Extreme+ Catback.
Ended up at 880/831 on meth & E55

Full Build:

Jokerz Ported LT4 Blower
DSX Custom Billet Lid
2” Catless Kooks Headers
TSP Cam 229/245 .635/.635 117LSA +32
BTR .660” dual valve springs
Johnson 2110r lifters
Pushrods
Roto-Fab Big Gulp
Katech 103mm TB
160 Thermostat
ATI crank pulley
Cordes Expansion Tank
MM Catch can
DOD / VVT delete kit
ARP head stud kit
DSX 9.65” Lower Pulley 20% OD
DSX Aux fuel pump kit
P3 Gauge
Meth kit
DSX Flex Fuel
Plugs / Wires
Gates HD Green Belt
Katech Oil Pump
LME Chain Guide
C5R Timing Chain
CHE Trunnion Kit
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