injector nozzle size

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Apr 22, 2012 | 09:16 AM

tuned-z

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Joined: Aug 2007

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injector nozzle size

please recommend a good injector nozzle size for my application: 1986 iroc, 305ci tpi .030 over , word sr-heads , cam-202/206 dur 403/415 lift, 1.52 rockers, stock tpi intake components, paxton sn92 blower 5-6 lbs boost

Apr 22, 2012 | 11:41 AM

antoine

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Joined: Mar 2003

Posts: 851

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From: vacaville,ca

Car: 1988 camaro z28,1997 camaro lt1

Engine: 355 afr 195 heads,tpis big mouth

Transmission: 700r-4 built by me 3-4 z pack

Axle/Gears: 3.42

Re: injector nozzle size

42 pounders with a custom prom made.

Apr 23, 2012 | 03:00 PM

tuned-z

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Joined: Aug 2007

Posts: 23

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Re: injector nozzle size

antoine, it looks like you have twice the engine that i have, maybe i should try 21lb injector?
i have 19lb nozzles in there now, worked fine with stock engine under 6lb boost with 50.5 psi fuel pressure, but now with better heads and cam it i think i need more fuel
looking for a recommendation base on what i have

Aug 20, 2013 | 07:08 PM

toronto formula

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Posts: 95

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From: Toronto

Car: 89 Firebird Formula

Engine: 383 tpi vortec heads Xr 269 cam

Transmission: 700R4

Axle/Gears: 3.73

Re: injector nozzle size

I have the same question. Did you ever decide on injector size?

I have a 305 and paxton sn2000 and water meth injection and catback

Aug 28, 2013 | 03:56 PM

tuned-z

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Re: injector nozzle size

have not replaced injectors yet, still unsure of what is a good size.
currently making repair, crankshaft damper broke off and ruined my cruise weekend. need to upgrade damper to one that wont break, extraact the broken bolt, replace pulleys