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Is there any sense in raising the fuel pressure on a, apart from intake and header, otherwise stock motor ? I heard it could get rid of a ' flat' spot in the power curve ?
Quote:
Originally Posted by P11-144
Thanks for NOT answering my question.. Too difficult ?
On a what? You didn't make a complete statement so how can anyone respond? No there's no reason to raise the fuel pressure unless you make use of the extra fuel.
On a what? You didn't make a complete statement so how can anyone respond? No there's no reason to raise the fuel pressure unless you make use of the extra fuel.
I DID make a complete statement. It says on a -apart from intake and header- otherwise stock motor. That means that my motor is stock, except for a header and intake. What info was missing ?? Obviously it concerns a sr20motor.
Regarding your answer: I have read that a flat spot in the power curve, which is accentuated by a cai in some cases, can be corrected a littlr or almost completely by raising the fuel pressure a bit. My question was if anyone of you guys can confirm this.
I DID make a complete statement. It says on a -apart from intake and header- otherwise stock motor. That means that my motor is stock, except for a header and intake. What info was missing ?? Obviously it concerns a sr20motor.
Regarding your answer: I have read that a flat spot in the power curve, which is accentuated by a cai in some cases, can be corrected a littlr or almost completely by raising the fuel pressure a bit. My question was if anyone of you guys can confirm this.
K, start a new thread, you're clogging up this already long thread with unrelated information.
259 cc = 175 WHP * Red SR20DE
ok im new to the whole fuel thing but im reading as i go. basically with all my mods that i will have in my car N/A sr20de motor i will be around 160 165 ish now as it states above my stock injector top off at 175. will i be ok with the stock injectors since they are close to topping out? this will be at 3 bar.
it seems like the next upgrade will be the 333 cc = 226 WHP * Grey SR20VE injectors... will this be a lil to much over kill??? will i be running rich??
i figure since we make roughly 115 to 120ish whp stock running 259 cc injectors and running fine without running rich then i should be ok if i add 40 more horses and upgrading to 333cc injectors then i should be fine. but that is just my theory...
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Andreas, what would the max be for the "new" Nismo yellow injectors that flow 615cc and also those same injectors at 4bar.
555 cc = 373 WHP * Yellow
---------------------------------------------555 cc @ 4 bar = 423 WHP
601 cc = 405 WHP * Yellow Tomei
---------------------------------------------601 cc @ 4 bar = 457 WHP
To keep things safe use this as a limit. Also these injs look the same and if you do not know which one you got use 373 WHP 3bar and 423 WHP 4 bar as your limit.
Always beter to keep it safe.
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Yeah I got my injectors from Japan in the original box. I verified the part number with JWT as the 615cc units. So I guess I'm good to 450 without worries. Thanks for getting the ball rolling on their 615 + 4 bar program.
I'll be honest and say this was all pretty much Greek to me so I'll ask my quick question and hope to not get flamed to badly lol. After reading I checked my fpr and it was at 60psi, I dropped it down 50psi thinking it was to high regardless. So will this trick work with out JWT mods to the ECU or should I put it back to 44psi? Injectors are 38s.
Why do you need injs that big. 740 cc injs will net you 520 WHP at 3 bar. A 520 WHP car is no joke, much less one for a daily driver which to me would not even be fun.
Think of your goals and get the smallest inj that will get you there.
i bought some rc720's from my buddy with a turbo 4g64. ive been told they will work but do you know andreas? on my gtir engine. and was wondering if rc injs are fine to run on 4 bar since i read msd's arent. lmk if you can.. thanks
matt
BSFC can vary widely between our engines depending on modification level etc. This is a guide based on real world results. There are plenty of Injector x BSFC calculators out there.
