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Mar 3, 2007 | 09:15 AM

BADBOYZ28

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From: Harlingen, TX.

Quick question!!

Alright well this is the deal I'm looking into spraying a 250 shot! What I wanna know is if my fuel system will be enough. I have a race tronix p&p and some 42 lbs. injectors along with the rest of the mods in my sig! I'v been told I need a inline pump as well as my intake! I'v been spraying a 200 shot right now with no problem.

Mar 3, 2007 | 10:28 AM

Todd157k

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From: Usa

and bigger injectors

Mar 3, 2007 | 10:34 AM

Robert56

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From: Tacoma, WA

Depends on total hp. I currently am close to 600rwhp and racetronics, 42's and return and reg at the rails. No fuel pressure drop or going lean at highest demand.
Robert

Mar 3, 2007 | 01:21 PM

Todd157k

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From: Usa

But he has a cam and headers too..

Mar 3, 2007 | 01:56 PM

Robert56

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Quote:

Originally Posted by Todd157k

But he has a cam and headers too..

Best way is to use the inj sizing math, to be sure you have enough.

Robert

Mar 3, 2007 | 07:02 PM

BADBOYZ28

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My injectors are at about 48%-50% duty cycle on motor! I haven't really payed attention on the juice! Car dynoed 363 RWHP before the th-350 so I'm pretty sure its gone down some now. So you think I need more injector also other than an inline? How do you do the injector sizing math?