injector question. Sizing?

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Apr 6, 2008 | 12:30 AM

Cole Train

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injector question. Sizing?

ok i've just did a build on my Vette. I did a Z06 heads, 228R TSP cam, headers, LS6 intake. I still am running the stock injectors will be taking the car to the tune shop this next week EARLY. What size you think i should run or do you think i can get by with 28's~Cole~

Apr 6, 2008 | 12:34 AM

LT1-DAN

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Do you have any future plans of getting more power out of the engine? If not you can get by with 42s.

Apr 6, 2008 | 12:42 AM

Cole Train

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no, engine will be good for a while

lol

Apr 6, 2008 | 12:56 AM

LT1-DAN

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42s will be more than enough.

Apr 6, 2008 | 01:52 PM

Robert56

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Check my web for sizing math and rerscaling injectors.
Robert

Apr 6, 2008 | 09:29 PM

ZL1Killa

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or CHECK THE STICKY here on the FUEL AND INJECTION THREAD.... i don't want to seem like an *** but it is at the top of this topic..

42's will do ya fine

Apr 6, 2008 | 10:09 PM

405HP_Z06

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Quote:

Originally Posted by ColeTrains'96Z28

You could stay with the stock 28.8 lb injectors but my guess is you will be over the recommended 80% duty cycle in the top end. If the car is going to stay at the current power level for some time, I would recommend the Ford red top injectors (30 lbs/hr @ 3 Bar) or the FAST 303608 (36 lbs/hr @3 Bar, 41 lbs/hr @ 4 Bar). I personally like the FAST injectors because these are the injectors used by GM in the ASA engines and the PCM calibration tables are readily available.

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Apr 8, 2008 | 07:43 PM

ZL1Killa

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yeh man, i hear ya ... i would hate for ya to dyno low or have to get out of it cuz your running out of fuel

42#ers will do ya to 500HP easily

Apr 8, 2008 | 09:58 PM

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Cole Train

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They SHOULD be here tomorrow(wednesday) so i'll see when they get here

~Cole~

Apr 10, 2008 | 07:18 PM

#11

Robert56

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Quote:

Originally Posted by ZL1Killa

yeh man, i hear ya ... i would hate for ya to dyno low or have to get out of it cuz your running out of fuel

42#ers will do ya to 500HP easily

You should be able to get more hp than 500 out of em, though. My numbers in sig are with Ford 42 green tops, however, they become about 47lb'ers at our fuel pressure.
Robert