toomanymodz
Well-Known Member
- Joined
- Oct 14, 2009
- Messages
- 1,120
I'm on the fence about this and hope others can chime in. I am slowly getting together a new combo and I'm not certain if I'll need new injectors or not. The new engine is a Weber stroker engine (109 block, std bore, 3.625 stroke). Cam is a billet roller 218/212. Heads are Champion GN1's with the full CNC port option. Intake is Champion with full porting as well. 70mm throttle body. I'm not 100% certain where the shift points will end up, but I'm guessing around 6,000 - 6200 RPM. My current turbo is a PTE-51.
I currently have 60# injectors, which may or may not work on this new combo. My current engine shifts at 5300 RPM and I'm seeing 78% duty cycle. My current engine sports an unopened short block with stock cam. The heads were ported with new springs. I usually run 19 to 20 psi on 93 octane (no alky).
Do I even waste my time with 60# injectors with the new engine? I'm thinking that I may quickly run out of injector at 6000+ RPMS. I'd hate to order a chip and then quickly find out that they're not big enough.
I see 72# or even 80# injectors available. Should I go that route or stick with my 60's?
I currently have 60# injectors, which may or may not work on this new combo. My current engine shifts at 5300 RPM and I'm seeing 78% duty cycle. My current engine sports an unopened short block with stock cam. The heads were ported with new springs. I usually run 19 to 20 psi on 93 octane (no alky).
Do I even waste my time with 60# injectors with the new engine? I'm thinking that I may quickly run out of injector at 6000+ RPMS. I'd hate to order a chip and then quickly find out that they're not big enough.
I see 72# or even 80# injectors available. Should I go that route or stick with my 60's?