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Old 11-14-2007, 06:46 PM   #1
Jim Wahl
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Talking Direct Exhaust Injection!

Could this be the way of the future? I never knew my turbo was so inefficient! This was a serious post at http://www.gmmodernmuscle.com/forums...er=asc&start=0

You can go there to see his drawing of his DEI invention and the 8 pages of hilarious reactions and remarks. Jim





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The Nemesis_ZR2



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Posted: Wed Nov 07, 2007 2:50 pm Post subject: Turbo Questions

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Ok. I didn't want to mention it but I was thinking about turbo charging my Vette. I got to thinking about it and how in efficient even turbos are (compressor efficiencies of about 80% at best).

Since a turbo's function is to pressurize incoming air and force it into the upper motor, and turbos are driven by high pressure exhaust gas created from the combustion process, couldn't I just bypass the turbo altogether and route my headers back into the throttle bodies?

Since I have CFI, I could balance the DEI (direct exhaust injection as I just coined it) by feeding one header into each throttle body. Yes, the charge air wouldn’t be that cold, but it would be under a hell of a lot more pressure.

There are still a few things I need to work out:
1) How do I get the CFI aircleaner to fit in a way that hides this plumbing?
2) Does anyone make a V-band clamp that will bolt an exhaust header to a CFI throttle body?
3) What pinion angle should I use in my rear-end? I’m sure there will be a noticeable difference in torque output.

What do you guys think?
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Last edited by Jim Wahl; 11-14-2007 at 06:55 PM.
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Old 11-14-2007, 07:52 PM   #2
Chris Hill
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Default Re: Direct Exhaust Injection!

That's funny stuff! The highest flow EGR system around.
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Old 11-14-2007, 08:58 PM   #3
Bob Shaw
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Default Re: Direct Exhaust Injection!

Jim,
I really don't think this is going to work, unless you can figure out a way to control the pressure in the intake manifold.
Bob
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Old 11-14-2007, 09:40 PM   #4
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Question Re: Direct Exhaust Injection!

wow, don't forget to install a tornado and boost that up to 300% efficiency
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Old 11-14-2007, 10:23 PM   #5
Jim Wahl
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Wink Re: Direct Exhaust Injection!

Nah! Bob I think the real problem is getting the correct pinion angle to handle the new found torque! Manifold pressure will take care of it's self. Jim
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Old 11-15-2007, 12:33 PM   #6
Harry 6674
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Default Re: Direct Exhaust Injection!

Somewhere,somehow theres got to be exhaust so things can move. Thats right its out of every seal in the engine, dipstick!!! WOW.
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Old 11-15-2007, 01:19 PM   #7
Jared Jordan
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Default Re: Direct Exhaust Injection!

I'd pay good money to be around the first time that idiot tries to start it.
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Old 11-15-2007, 07:15 PM   #8
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Default Re: Direct Exhaust Injection!

LOL, We had a 20 page thread on this on one of my other forums.
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Old 11-16-2007, 10:10 PM   #9
Chris Cogan
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Smile Re: Direct Exhaust Injection!

I can't believe that you guys have never heard about this engine configuration! It was first designed by an engineer at the ACME company back in the early 70's. I think the engineer's name was Wile E. Coyote, Suuuuuuuuuuuuuper Genious.

Thank you Jim Wahl for posting the link. I have been laughing about it all day. Here's your sign........ : )

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Old 11-18-2007, 11:28 PM   #10
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Default Re: Direct Exhaust Injection!

You can't get on it any more because of all the poeple trying. It's on the Turbo Buick board too. LOL
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