C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Aftermarket FI?

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Old Jun 20, 2009 | 06:17 PM
  #1  
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Default Aftermarket FI?

Who else makes the aftermarket 4bbl. style fuel injection systems besides FAST and Edelbrock? I'm thinking of going with that type of system with the single plane style unit instead of my Miniram. I'm sure they make more power and are more tuneable than our stock ECM's and PROM re tunes. Anyone tried this? THANKS for any info. Pipe
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Old Jun 20, 2009 | 10:10 PM
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Originally Posted by pipe
Who else makes the aftermarket 4bbl. style fuel injection systems besides FAST and Edelbrock?
http://www.thirdgen.org/techboard/df...i-systems.html
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Old Jun 20, 2009 | 10:29 PM
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Why not use a FAST or Accel DFI ECU with your miniram?
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Old Jun 21, 2009 | 12:48 AM
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I'm going to go with a single plane EFI intake as well but will probably stick with the stock ECM as $1500+ is just stupid for an aftermarket unit.
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Old Jun 21, 2009 | 09:30 AM
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Thanks for the reply's. Over on third gen they have loads of systems listed. Thanks rodj. I think the single plane will make more power than the Mini Ram. Pipe
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Old Jun 21, 2009 | 06:56 PM
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I just got rid of my MR and am trying an Accel 1350 CFM low profile 4bbl style TB on a ported Victor "E" manifold. This is on my 434. Hopefully I'll have it on the chassis dyno in a few weeks. Engine dyno made 570 hp

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Old Jun 21, 2009 | 08:33 PM
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Looks Great, is all that going in a C4
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Old Jun 25, 2009 | 11:00 PM
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Those Accel Gen VII kits seem to be a great bargain imo. I think you can even get heavier injectors if you want if I remember the ad correctly. I have a ported Motown converted to EFI with a FAST throttle body and computer, but it cost me way too much. If I could redo things, I would go Accel, upgrade to the 1550 TB and port the intake.
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Old Jun 26, 2009 | 07:03 PM
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Jerkeyboy cool lookin motor. I wish I would have went bigger with my setup. How did your car run with the Mini Ram? Have any tuning issues? I have the MR and a 58mm TB from AS&M Pipe
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Old Jun 26, 2009 | 08:01 PM
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Old Jun 26, 2009 | 09:21 PM
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Corvettedave tell me about your setup. I looked at your pix neat! Is the FAST system hard to tune? On their site they say it's easy to tune. Pipe
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Old Jun 26, 2009 | 11:06 PM
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I too run a converted single plane with MB. I was forced to go this route, as when you get to very high HP levels, the MRII has issues with the air not wanting to feed all cylinders equally. All is powered by FAST.

I would definitely recommend this route if you plan to exceed 600WHP.
Aaron
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Old Jun 27, 2009 | 07:46 AM
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Originally Posted by pipe
Jerkeyboy cool lookin motor. I wish I would have went bigger with my setup. How did your car run with the Mini Ram? Have any tuning issues? I have the MR and a 58mm TB from AS&M Pipe
As noted, the MR had distribution problems. From front to back, the plugs were always inconsistant. I had other problems that contributed to my tuning issues. I am hoping that will all be resolved in the next few weeks. If you have a choice, go with the SP like AKS has. Everyone I know that is running one is making great power
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Old Jul 2, 2009 | 12:39 AM
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AKS is that a home made plenum? Jerkyboy any issues hooking up the throttle & trans cable to that style TB ? Pipe
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