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should i really be buying injectors with this setup?

i only want to run 15-16psi on my turbo with a slide hiflow to keep the engine running a long life but make decent power also.

ive stated my mods before but for pplz who dont know they consist of a fmic, 3in exhaust (trb back), pfc, bigger f/pump,pod filter. is it really worth getting an injector upgrade for say 230rwk and will the stock injectors be safe at say 92% duty cycle?

thanks guys

car is a r33gtst

Edited by R33GOD

im just speculating at the moment mate. but my tuner will run them on 92 thats why i wanted to know. the stock afm will flow to 230 rwk so ive heard so im not worried about that. im biulding a good quality streeter not a drag car :laugh:

but still not convinced about the high duty cycle he's going to run

Edited by R33GOD

Personally i would not.

I would push no more than 85%... even that is on the edge. This allows for suffcient headroom.

Call it over precaution, but i certainly would let a built motor let go... or want a motor to let go

im just speculating at the moment mate. but my tuner will run them on 92 thats why i wanted to know. the stock afm will flow to 230 rwk so ive heard so im not worried about that. im biulding a good quality streeter not a drag car :)

but still not convinced about the high duty cycle he's going to run

it depends on headroom in the tune, we rans cats car all 2004 at 98% duty cycle with no dramas, it is not all that smart but it is doable. Bigger injectors a better tune will usually yeild better power as you dont need the headroom precautions.

92% is fine. You will find even in cold weather it won't alter that much, maybe 93% but never near 100%. Ive ran close to 98% and constitantly monitored it. Thats living on the danger side though with one eyed glued on the PFC. I ran a 2535 turbo with a adj. fuel pressure regulator.

better to be safe then sorry i guess. only need a maximum of 440cc to get the power i want. deatschwerks are cheap but i might be risking blowin up an engine. my setup is good for a genuine 230 rwk. just confused with all these replys thats all

It depends on the tune, Ive been running a set of 555's at 95% for ages and my AFR's are a little on the rich side. I have constant lambda logging so I know its always safe.

One day ill get around to buying bigger injectors and re-tunning it but atm its happy doing what its doing.

When it comes to injector buying time I like to treat each vehicle on its own merit. Id recommend you do the same.

Personally i would not.

I would push no more than 85%... even that is on the edge. This allows for suffcient headroom.

Call it over precaution, but i certainly would let a built motor let go... or want a motor to let go

definitely not a good idea running them at 92% like r31Nismoid said even 85% is pushing, although many people do its not smart, can fry injector drivers, melt wiring etc which ive seen happen, 75% duty cycle is optimum but means u need even bigger injectors, if you plan of giving you car heaps for longer periods of time dont run them a 92%

definitely not a good idea running them at 92% like r31Nismoid said even 85% is pushing, although many people do its not smart, can fry injector drivers, melt wiring etc which ive seen happen, 75% duty cycle is optimum but means u need even bigger injectors, if you plan of giving you car heaps for longer periods of time dont run them a 92%

i do have a heavy foot so yea i might just save up n buy some injectors too

Just get the deatschwerks, with the trade-in on your stock ones they're a bargain...also with the cost diference just get the 550's in case you change your mind about the power level.

good point. thanks mate

definitely not a good idea running them at 92% like r31Nismoid said even 85% is pushing, although many people do its not smart, can fry injector drivers, melt wiring etc which ive seen happen, 75% duty cycle is optimum but means u need even bigger injectors, if you plan of giving you car heaps for longer periods of time dont run them a 92%

This would point to other problems not related to injector size or duty cycle.

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