75hp shot on moded motor

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Dec 28, 2006 | 02:51 PM

rktsled

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75hp shot on moded motor

Would a 75hp shot be save with cam and headers. with stock fuel pump and 28lb injectors? I'm getting 370 to the wheels right now.

Dec 28, 2006 | 03:01 PM

35thls1ss19

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wet kit, dry kit? I made 427 NA w/ 30lb svo injectors, on a 75 i made 498 i am goin to spray 150

But i have a recetronix fuel pump. I would say you will be fine with a 75

Dec 28, 2006 | 04:15 PM

sweetness

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From: worcester,ma

if its wet ur fine if its dry there is a possibility you might need injectors

Dec 28, 2006 | 04:20 PM

rktsled

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Its a dry kit. don't want to run it lean but would like to use the 75 shot . untill i get the money for all the new stuff.

Dec 28, 2006 | 09:51 PM

FloydSummerOf68

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Do you have any means of scanning it to watch for the injector duty cycle % that you're hitting?

Dec 28, 2006 | 09:52 PM

rktsled

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Yes I have hptuners. last I checked was at 82%

Dec 28, 2006 | 09:54 PM

FloydSummerOf68

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You usually want to keep injector duty cycle around 80% to be safe (that just seems to be the standard)...but you do still have room to play with before you are maxing them out...you should be fine.

Hit it once and see what it goes up to.

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Dec 28, 2006 | 10:54 PM

CAT3

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Oh pooey, BS on the IPW. If your dragracing, hang those suckers out over 100% and call it a night when see the AFR rising. I've done it with much larger shots so it has to be the way to do it! Ok, seriously though, you can def. run much higher than 80, 90 or 100% as long as it short duration and your not leaning out.

Dec 28, 2006 | 11:46 PM

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sweetness

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From: worcester,ma

Dec 29, 2006 | 09:25 PM

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1999ssls1

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From: Chattanooga,TN

spray it

Dec 29, 2006 | 09:43 PM

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CAT3

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Seriously now, if on the track you can get away with over 100% as its only a short time, that is if all else is in good order. Some cheap alternative, find a set of Viper injectors (troll the viper boards) the tend to sell them cheap, they are 30#, but w/ LSx FP its about 34 IIRC. I ran them for some time, with a 180dry shot I was tapping on the 100%, that and a highly modded forged engine

Another one, Lightning owners tend to sell their stock 42lb lime tops cheap. Ran them with over 200shots.