should I install injectors?

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Jul 4, 2009 | 09:55 AM

#16

bbyevo8u

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From: NY

Quote:

Originally Posted by EatSleepBoost

correct. although it is not ideal and ur injectors are working over their most efficent and accurate percentage they will still flow up to i believe 120idc before you hit fuel cut. I drove my car for about 6 months with numerous track runs and logged 114ish idc and the car ran just fine. i currently have bigger injectors now but to answer ur question, yes. 100% is ok for some time, just not ideal.

what boost/power you at with 114idc?

Jul 4, 2009 | 10:39 AM

#17

darkwolf

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From: Huntsville, AL, USA

Based upon the modifications you mentioned, I do not see any reason to run upgraded injectors at this time. What are your goals with the car? Dyno Queen? Drag? Auto X? Time Attack?

Jul 4, 2009 | 10:44 AM

#18

spdracr

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From: LA

i would just throw them in if u have them u wont necessarily get a power gain its more of a safety thing more than anything and u need a fuel pump

Jul 4, 2009 | 11:02 AM

#19

EatSleepBoost

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From: Mass

Quote:

Originally Posted by bbyevo8u

what boost/power you at with 114idc?

dunno power but 26psi on pump with supporting mods like intake, tbe, manifold, o2 housing, etc. trap speeds about 115mph on the 1/4

edit.. also with a walbro 255 and a stock 8 turbo as well as stock 8 hotside

Jul 9, 2009 | 05:48 AM

#20

recompile

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From: New Hampshire, USA

Quote:

Originally Posted by Thoe99

I'm currently pegging 92-94% IDC with 22psi and the mods in my sig. So I figured if I were to turn up the boost any more, I should definitely get bigger injectors. But a buddy of mine who has even more mods than I do on an Evo8, went to get a Jestr tune and he turned up his boost to 25psi, still on stock injectors

That's why I'm thinking above 100% IDC on Evoscan might be within reason still?

The stock turbo can't sustain high boost at high RPM, so you're probably both at 19psi @ 7000RPM, and 37 lb/min regardless of how high you turn up the boost.

Also air fuel ratio obviously makes a big difference... if you're running richer than he is then your IDC's will be higher.

Anyone over 90% IDC should get bigger injectors, no question. And get them large enough so that if/when you upgrade your turbo, you don't have to change them again. You will get the most power and the best spray pattern at 80% IDC, so take that into account.

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