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Do I need new injectors?

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Old Nov 19, 2005 | 09:02 AM
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Stang's Bane's Avatar
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From: Mont Belvieu, TX
Question Do I need new injectors?

I am planning on installing a cam in the near future and I was wondering if I needed to bump up my injector size for this. I think I am having a problem with one or two of them now, and I dont want to replace the bad ones with a stock size and have to change them out when I put in a cam. The cam I a looking at is fairly large, around a .600 lift, don't know the duration or lsa, guy that owns the shop says that it's all a big secret. He says that with the cam and the exhaust that I have I should see between 390 and 400 rwhp. Is that out of line? Thank's for the help ahead of time.
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Old Nov 19, 2005 | 09:47 AM
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From: Decatur IN.
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30# injectors would be a good choice,you shouldnt max out the stock injectors @ 400 rwhp but you would be getting close.If you think you have a problem with your injectors know I would swap them out

Brent
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Old Nov 19, 2005 | 10:23 AM
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Originally Posted by Brent@EPP
30# injectors would be a good choice,you shouldnt max out the stock injectors @ 400 rwhp but you would be getting close.If you think you have a problem with your injectors know I would swap them out

Brent
So I wouldn't have any problems running the 30# with just headers,ory, cat back , lid and smooth bellows? The problem is a hesitation and basckfire under wot starting at around 3600 and ending at around 4500-4800. The higher gear that I am in the worse that it is ie.. 1st no problem, 2nd little problem, blows through it pretty quick 3rd pretty bad, really don't want to pull through it at all. Don't know after that, not enough open road around to really air it out.
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Old Nov 19, 2005 | 10:41 AM
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brent tuned my car and I am bolt on's with a cam. stock injectors and not having a problem. when I decide to go turbo I will jump to 60#'s. gives me more breathing room when I want to turn up the wick.
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Old Nov 19, 2005 | 04:37 PM
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I've seen 28.8 stock injectors on engines over 420 hp.
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