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> 7A-FTE need info on INJECTORS, well........
post Mar 29, 2004 - 7:48 AM
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doGGy



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Well as long as i read about the injectors stuff, i know that i will need bigger injectors (or can i run stock ones at 10 psi?). Well i got Supras 7M-GE injectors (yellow top... frown.gif). And i know what 7A injectors are 13.9 ohm and 7M-GE are 2.9 ohm. Well i will need resistor pack to run them, right? but is this resistor pack is just ordinary resistors or there are more stuff that i dont know about? And is there a change to run resistors straight on the injector to get needed resistance for the ecu?

Another Q is i got Supras 2 bar MAP. But i dont know ANYONE who used it sucesfully. How the hell i will tune my car with 2 bar MAP?

Well for now thats it smile.gif

Thanks for the replays...


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post Mar 31, 2004 - 10:03 AM
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SpedToe169



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It totally depends on what fuel pressure you had to run to make them work at that boost level. The amount of fuel the injector delivers is dependent on the flow rate of the injector (what you're talking about here), the fuel pressure delivered to it (controlled by your FMU), and the pulsewidth (controlled by the computer). You can add more fuel by increasing the fuel pressure but past about 100psi the injectors will start to hang open and cause problems. Also, if you reach about 95% duty cycle (by altering the pulsewidth with the SAFC) you'll start to have problems.

The easy answer is, if you don't know exactly what you're doing, error on the side of the bigger injectors. Its probably possible to make the car work with the stock ones, but an error could be fatal to the motor.

Posts in this topic
- doGGy   7A-FTE need info on INJECTORS   Mar 29, 2004 - 7:48 AM
- - toyotaspeed_90   you can run the greentop 4a-ge (smallport highcomp...   Mar 29, 2004 - 2:13 PM
- - KnightRider   you can also use turbo probe injectors. i have tw...   Mar 29, 2004 - 9:47 PM
- - doGGy   Well, i asked one thing, got answers that i know a...   Mar 30, 2004 - 1:34 AM
- - doGGy   ANYONE????? Guys come one, or should i go to C.net...   Mar 30, 2004 - 2:42 AM
- - SpedToe169   I think even with a resistor pack you're going...   Mar 30, 2004 - 2:14 PM
- - hyp3rk1d   cant you run the stock injectors.. they should hol...   Mar 30, 2004 - 6:36 PM
- - rlan214   QUOTE (hyp3rk1d @ Mar 30, 2004 - 4:36 PM) cant you...   Mar 30, 2004 - 8:29 PM
- - hyp3rk1d   u can runnin on 8psi?? correct???   Mar 30, 2004 - 8:41 PM
- - rlan214   QUOTE (hyp3rk1d @ Mar 30, 2004 - 6:41 PM) u can ru...   Mar 30, 2004 - 9:00 PM
- - 1bwilson   Doggy, the supra MAP is 2.2 bar you need a 3sgte o...   Mar 30, 2004 - 9:09 PM
- - hyp3rk1d   hmm.. ne 1 know ne knowledge of running 8 psi on y...   Mar 30, 2004 - 10:16 PM
- - 1bwilson   I think you will max out the flow way before that....   Mar 30, 2004 - 11:20 PM
- - doGGy   Well, then i will have to get the Right injectors ...   Mar 31, 2004 - 12:29 AM
- - toyotaspeed_90   7/4a-fe stock injectors (at least in corolla's...   Mar 31, 2004 - 4:52 AM
- - hyp3rk1d   so does ne1 know for sure if they would withstand ...   Mar 31, 2004 - 7:19 AM
- - SpedToe169   It totally depends on what fuel pressure you had t...   Mar 31, 2004 - 10:03 AM
- - 1bwilson   QUOTE (doGGy @ Mar 30, 2004 - 10:29 PM) Well, then...   Mar 31, 2004 - 3:16 PM


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