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-   -   Fuel Injector question (https://www.rx8club.com/series-i-major-horsepower-upgrades-93/fuel-injector-question-192211/)

CompMan 03-01-2010 10:03 AM

Fuel Injector question
 
I'm getting my greddy turbo kit installed hopefully this week once I receive my ecu, cai intake, and oil pan.

I'm using an interceptor ecu and I'm getting the car dyno, and street tuned.

My question is if I get bigger injectors could I get more power out of the greddy turbo kit?

TeamRX8 03-01-2010 10:07 AM

S-e-a-r-c-h

RX8YA 03-01-2010 10:15 AM

pssst compman remember to shoot me that price from jpr still curious. I think out injectors are fine for the standard greddy kit. When you start to go 300+ is where you should get injectors and fuel pump upgrade. You dont want to push a standard greddy turbo past that mark in my opinion you are setting yourself up for failure. What type of numbers are you shooting for? Maybe someone else will chime in also.

CompMan 03-01-2010 10:24 AM

haha I still didn't talk to him because my check didn't come in yet! lol


I hoping for around 280 just to stay safe. Maybe in the future I'll upgrade the turbo and get new injectors.

Edit: After talking to people and reading I'm seeing that I should just keep the stock injectors with the Greddy kit to keep it reliable. Thanks

RX8YA 03-01-2010 12:52 PM

280 is reliable i wouldnt go higher then that on a stock greddy turbo you def wont need better injectors either.

Highway8 03-19-2010 11:18 AM

Just play it safe and send all your injectors to kgparts.com get the p2 injectors upgraded (650 CC I think) and all the injectors serviced and flow matched. With an 04 you really have no idea what condition your injectors are in. If you have a bad or poor flowing injector, you could blow you motor even with a stock greddy kit. Its cheep insurance, makes tunning easier and you will have enough fuel in case you upgrade latter.

dannobre 03-19-2010 12:06 PM

Stock fuel injectors will limit your HP a bit...but the stock Greddy runs out of air not long after the injectors...so I guess the answer is yes ;)

05rx8mazda 04-07-2010 09:11 PM

Great info in here! im trying to figure out how to set up my injectors as well... Getting them all flow matched is a good insurance tip.


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