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- 2003.5 Mazdaspeed Protege
Did u get ur injectors at mopac too?
motor build?
- Thread starter mazdaspeedp
- Start date
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- 2003.5 Mazdaspeed Protege
Ya i allready got a walbrough255lph installed on my car
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- Completely Stock P5
Walboro 255 and the injectors came from a store on eBay.
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- 2003.5 Mazdaspeed Protege
I think ill be going with rc injectors.low impedince 660ccs
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- Completely Stock P5
RC's are good. I went with the SARD's (STi top feed replacement) because they dropped right in and worked with the stock harness plugs.
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- 2003.5 Mazdaspeed Protege
Ya those sound legit. I talked to the rep at rc though 660 cc is direct replacement for mazda and japanese engines like supras. The 660 are good to 500+ hp thats more than i need anyways
Maxx, would you still keep it hooked to vacuum or just leave it unhooked totally?
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- Completely Stock P5
Take the vacuum line that was hooked to the FPR solenoid (emissions bulls***) and hook it directly to the FPR itself right from the manifold.
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- Banned For Being A Troll
The only reason I am going with 1000cc injectors is that I have Sequntial Injection. If you are running anything "Non Sequential" you will not like the 1000cc because they will not be able to atomize with finess at idle. Your AFR will bounce around all over until you get on the gas, and even then...
I want to tune for E85 and I will not use a rising rate FPR so they are a good modification for my build. I believe honestly that the STI Pink injectors would be perfect for your build, even the 440cc to a point, but why replace them in a year when you run out of headroom.
As MAXX said, use the Variable FPR to extend the injectors range.
I want to tune for E85 and I will not use a rising rate FPR so they are a good modification for my build. I believe honestly that the STI Pink injectors would be perfect for your build, even the 440cc to a point, but why replace them in a year when you run out of headroom.
As MAXX said, use the Variable FPR to extend the injectors range.
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- 2003.5 Mazdaspeed Protege
What size are the sti pinks? 440?
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- Banned For Being A Troll
550cc
The Blue are 440cc
The Blue are 440cc
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- 2003.5 Titanium Mazdaspeed Protege
Are Bosch 850cc injectors over kill for a 300-350whp goal?
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- Banned For Being A Troll
IMO, they are too large... You will comprimise your idle for nothing.
What are you running for EMS? (and how is it configured to operate)
What are you running for EMS? (and how is it configured to operate)
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- 2003.5 Titanium Mazdaspeed Protege
I'm going to be running a haltech sprint 500, I don't have it yet so I can't answer how they will be fired
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- Banned For Being A Troll
I would be happy to help you with your install and initial tuning (Base Map)
I have been tuning the PS1000 for three years..
http://www.mp5t.com/?page_id=269
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- 2003.5 Mazdaspeed Protege
Will pinks fit with a perrin fuel rail? And what would 550cc max out at?
Your injectors shouldn't limit you at that power level. Reliability will ultimately depend on the tune.
It depends on the duty cycle and fuel pressure you want to run them at. I would say they are "safe" for 300-350whp, but again it depends on what you consider to be a safe duty cycle. My 450cc are close to maxed at 300whp, my tuner said he's running more than 85% duty cycle but they're freshly cleaned/flow tested and he though it was safe. Guy's tuned Honda's for over a decade now, literally hundreds of setups so I trust his opinion. There are calculators out there that will give you a rough estimate of how much power your injectors can make
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- Completely Stock P5
STi and WRX injectors will drop into the perrin rail, yes. If you need help with your fuel system, let me know and we can make a trip to Mopac for what you need. Haha
