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750's wont run w/ a stock ECU?

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Old 06-20-03, 12:04 PM
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apeiron

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750's wont run w/ a stock ECU?
I was wondering, I recently bought 2 injectors from Fritz, they were origionally 550's but got worked on by RC engineering and are 750s now.

I figured hey, I have a dp and a more free flowing exaust now so I might as well just run a little rich to be safe.

So my question is, can my car handle 750 cc primary injectors on a stock ECU?

If not... well, does anyone have a good working 550 cc injector for sale?? I need it by Monday !
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Old 06-20-03, 12:15 PM
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Nope, the stock ECU doesn't know that the injectors are enlarged so it won't be able to supply the correct fuel for your A/F ratio.
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Old 06-20-03, 12:16 PM
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son of a...


so I couldnt run them and just let my car run rich???

blah..

what would happen if I tried running them w/ the stock ECU???
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Old 06-20-03, 12:42 PM
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Originally posted by spoolage
son of a...


so I couldnt run them and just let my car run rich???

blah..

what would happen if I tried running them w/ the stock ECU???
Damn, man. Bad stuff--the stock ecu definitely doesn't like running diff size injectors. Call Steve, Chris or Ihor at Gotham. The number is on the website. We should have a used set laying around. Hell, I have mine floating around, but who knows where in Steve's house they are....
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Old 06-20-03, 12:44 PM
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haha, Steve... is that the guy that flew off the track at the Dallas Motor Speed Way not too long ago??? That guy was great.


Yea I'll make sure to give him a call, thanks.
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Old 06-20-03, 12:53 PM
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Arrow
You should read this thread:

https://www.rx7club.com/forum/showth...threadid=60936
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Old 06-20-03, 12:54 PM
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would this solve my dilemma??

Greddy E-Manage Injector Harnes
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Old 06-20-03, 01:15 PM
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Originally posted by spoolage
would this solve my dilemma??

Greddy E-Manage Injector Harnes
IMO, unless you have a need for larger primary injectors, just get a set of standard 550's. It will save you hassles in the long run.

When you do have a need for larger primaries, do it right and get a programmable ECU like the PFC, or Haltech, etc..
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Old 06-20-03, 02:05 PM
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Originally posted by spoolage
haha, Steve... is that the guy that flew off the track at the Dallas Motor Speed Way not too long ago??? That guy was great.


Yea I'll make sure to give him a call, thanks.
Hmmm, doubt it. Steve's a pretty dang good driver. Are you referring to the dipshit that flew off of Motorsport Ranch? Because if so, that dipshit was me
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Old 06-20-03, 02:21 PM
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aha, yea... that was the day the chick driving the supra dumped her oil pan while on the track ending the even short correct??
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Old 06-20-03, 03:24 PM
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Originally posted by spoolage
aha, yea... that was the day the chick driving the supra dumped her oil pan while on the track ending the even short correct??
Roger that. That day blew ***. My worst day at MSR by far. I need to find me some more S02s; I didn't like the damn Yoko AVS Int at all. Plus, hardly any track time. Ah well. I'm glad I was able to amuse you
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Old 06-20-03, 03:40 PM
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Hey, where did my $$$ go?

 
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Originally posted by GoodfellaFD3S
Are you referring to the dipshit that flew off of Motorsport Ranch? Because if so, that dipshit was me

Ok, so I need to hear this story lol

What did you do? Are we talking a drag strip or a road course???

STEPHEN
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Old 06-20-03, 03:57 PM
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road course. a nice one too,
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Old 06-20-03, 03:57 PM
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road course. a nice one too,



Last edited by spoolage; 06-20-03 at 04:02 PM.
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Old 06-20-03, 04:39 PM
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Hey, where did my $$$ go?

 
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Ahhh, ok....well I can understand that hehe

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Old 06-20-03, 10:47 PM
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nice road course!
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