LS1TECH - Camaro and Firebird Forum Discussion

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-   -   HP on 42's (https://ls1tech.com/forums/fueling-injection/837143-hp-42s.html)

js2fst Dec 30, 2007 02:07 AM

HP on 42's
 
How much RWHP from 42 green top injectors with blower.

Websy21 Dec 30, 2007 02:21 AM


Originally Posted by js2fst (Post 8390130)
How much RWHP from 42 green top injectors with blower.

Don't quote me but with a well laid out system, lines, rails, pump, etc. I don't think they will do much more than 550rwhp and lucky if you get 600rwp. I don't remember since I looked into a long time ago, but I do know I just made the plunge straight to 60#'s instead of upgrading twice in the future.

njc.corp Dec 30, 2007 05:14 AM

525-550 RWHP is where it's at-from what i have seen from a couple of my freinds car-

if not wanting to buy injectors twice over 60-70 pounders would be more then enough for 700-750 rwhp-

longrange4u Dec 30, 2007 06:29 AM

I made 607RWHP with them without leaning out.. but that was at like 98% duty cycle...

Websy21 Dec 30, 2007 07:09 AM

So there you have it, 550rwhp max, thats what I thought. 98% duty cycle is a lil scary

EPP Dec 30, 2007 07:21 AM

85% duty cycle is typically where you want to max out injector duty cycles, many are over this point, but it's not a good idea. Bob

js2fst Dec 30, 2007 12:37 PM

Bob you work as much as I do! Thanks for your input guys, I was double checking I am around 500 and was trying to make sure I had not gone to far yet.


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