MPFI Intake Manifold - Team Camaro Tech
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post #1 of 8 (permalink) Old Aug 21st, 13, 08:14 PM Thread Starter
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MPFI Intake Manifold

I'm toying with the idea of adding EFI to my 383 (somebody please talk me out of it)

I've noticed that in the few systems I've looked at, the multi-port systems seem to use single plane manifolds. Does the benefit of a dual plane intake for street driving go out the window or does the FI make up for it?

Thanks.


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post #2 of 8 (permalink) Old Aug 22nd, 13, 03:48 AM
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Re: MPFI Intake Manifold

EFI makes up for it.

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post #3 of 8 (permalink) Old Aug 22nd, 13, 06:07 AM
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Re: MPFI Intake Manifold

I just finished installing the Holley Avenger MPI system on my 454, the install was straight forward and everything went smooth except for the bad o2 sensor out of the box. To sum it up I can't talk you out of it in good faith seeing this system is pretty much unbelievable! I'll never own a carb again.
As far as the single plane intake is concerned it does not take away from your low end torque seeing it is basically an air mover with the fuel being injected directly into the intake port of the head.
The self learning capability of the system is amazing to say the least but you can still fine tune with a laptop.
Go for it! you won't be sorry.

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post #4 of 8 (permalink) Old Aug 22nd, 13, 08:46 AM
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Re: MPFI Intake Manifold

Quote:
Originally Posted by BPOS View Post
I'm toying with the idea of adding EFI to my 383 (somebody please talk me out of it)

I've noticed that in the few systems I've looked at, the multi-port systems seem to use single plane manifolds. Does the benefit of a dual plane intake for street driving go out the window or does the FI make up for it?

Thanks.
I won't try to talk you out of it, but either make sure you've got a local tuner for whatever system you get, or confirm that any self-tuning feature will really get the car dialed in. I had a Holley Commander 950 on a 383. Idle, low end, acceleration, power, etc. were all fine; I felt I left some fuel economy on the table.

Also, you'll have to modify your fuel system to assure uninterrupted fuel flow under low fuel conditions. All of the LS guys struggle with this, with most of the solutions being well north $1,000. I stumbled onto a really good setup (ran the tank down to 1/2 gallon on a twisty road), which could be done pretty economically if you're a good welder, or know one: https://www.camaros.net/forums/showthread.php?t=116648

That said, there's nothing like turning the key and having the engine fire right up.

Mike - '68 Camaro - aftermarket or modern pretty much everything.


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post #5 of 8 (permalink) Old Aug 23rd, 13, 08:40 PM Thread Starter
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Re: MPFI Intake Manifold

Thanks for the replies guys.

Mike - What do think of this tank/pump/sender setup? $220/$220/$35 plus shipping? http://www.tanksinc.com/index.cfm/pa...rod/prd348.htm


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post #6 of 8 (permalink) Old Aug 23rd, 13, 10:07 PM
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Re: MPFI Intake Manifold

Quote:
Originally Posted by BPOS View Post
Thanks for the replies guys.

Mike - What do think of this tank/pump/sender setup? $220/$220/$35 plus shipping? http://www.tanksinc.com/index.cfm/pa...rod/prd348.htm
That might be okay. There's probably a big enough market for EFI tanks for these cars that cheaper solutions are being made than when I did my conversion.

The key is the baffling and the ability of the pump to pick up fuel in low fuel conditions. It's hard to tell if the baffle is the lowest point in the tank (good), or merely spot welded onto the floor at the same level as the rest of the bottom of the fuel tank (not as good). I'd try to get some pictures of the bottom of the tank and referrals from Tanks, Inc. and see if there are any car magazine reviews.

Mike - '68 Camaro - aftermarket or modern pretty much everything.


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post #7 of 8 (permalink) Old Aug 24th, 13, 05:09 AM
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Re: MPFI Intake Manifold

I spent alot of money on cheap tank/pump solutions. In the end the only thing that worked was a Ricks tank Vaporworx system. I have a 454 in my camaro and had all sorts of fuel overheating problems. Contact Carl Cassanova and save yourself the pain and suffering.

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post #8 of 8 (permalink) Old Aug 27th, 13, 02:25 PM Thread Starter
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Re: MPFI Intake Manifold

Thanks again guys.

I've been considering the FAST EZ EFI 2.0 throttle body system. Looked at the Holley Avenger multi port system but it seems all of their kits include the fuel system parts that I wouldn't use. Haven't really looked at Edelbrock, Accel or MSD.

The more I think about it the harder is to justify the expense considering that it's just a fair weather toy. For now I think I'll stick with the good old Holley DP which works well.


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