precision 780cc injectors good for 450whp?
06-25-2007, 09:31 AM
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precision 780cc injectors good for 450whp?
I thought these would be good for 450whp but then I read some posts saying they would lock up and 450whp is close to maxing out. Am I going to have to get larger ones?
06-25-2007, 11:08 AM
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Re: precision 780cc injectors good for 450whp? (SovXietday)
how close is close? my base fuel pressure is 50psi(with vaccuum off). I already bought these so if I really need to get larger ones I will.
06-25-2007, 11:19 AM
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Re: precision 780cc injectors good for 450whp? (champLSinteg)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by champLSinteg »</TD></TR><TR><TD CLASS="quote">how close is close? my base fuel pressure is 50psi(with vaccuum off). I already bought these so if I really need to get larger ones I will.</TD></TR></TABLE>
I sell them for $290 shipped or you can steo up to 1000cc for $325 shipped also
You can get more out of the 780cc you have if you turn the base fuel pressure up also. The correct way would be to go to bigger injectors, one thing I always recommend is go one step up from your goals. You will eventually want more!
I sell them for $290 shipped or you can steo up to 1000cc for $325 shipped also
You can get more out of the 780cc you have if you turn the base fuel pressure up also. The correct way would be to go to bigger injectors, one thing I always recommend is go one step up from your goals. You will eventually want more!
06-25-2007, 01:02 PM
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Re: precision 780cc injectors good for 450whp? (dturbocivic)
what was the duty cycle at that power? If I can make that power with these and be safe then i'll stick with these. It will be daily driven at around 350 on pump and around 450 for the track only.
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06-25-2007, 03:39 PM
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Re: precision 780cc injectors good for 450whp? (champLSinteg)
need to know for sure that I have to go with bigger injectors. Not planning on going over 450hp anytime soon!
06-25-2007, 03:43 PM
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Re: precision 780cc injectors good for 450whp? (champLSinteg)
i was at 450 on pumpgas.
https://honda-tech.com/zerothread?id=1549069
let me find the file, ill let you know on the duty cycle in a minute.
@ 7936(last rpm value on the table) im @ 72% @ 15.6psi and 90 % 20.3psi. (at 25.1 its 113 and 30 its 128)
i was only up to 18-19 psi
https://honda-tech.com/zerothread?id=1549069
let me find the file, ill let you know on the duty cycle in a minute.
@ 7936(last rpm value on the table) im @ 72% @ 15.6psi and 90 % 20.3psi. (at 25.1 its 113 and 30 its 128)
i was only up to 18-19 psi
06-25-2007, 05:29 PM
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Re: precision 780cc injectors good for 450whp? (SovXietday)
LOL, people have done that on 550s and have been 500whp+ on 660s on race gas in a dsm. So yes they will work on pump gas or race gas with your setup.
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