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Monkey with a mouse
Join Date: Oct 2000
Location: SoCal
Posts: 6,006
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Radical Innovation: Direct Exhaust Injection (DEI)
This came up on the "Corvette" thread.
It deserves its own thread.  Originally appeared here: http://www.gmmodernmuscle.com/forums/viewtopic.php?t=2779&postdays=0&postorder=asc&start=0 edit: From the original post at the Corvette forum: 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. I attached a quick sketch below: 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? Best, Kurt Last edited by kstar; 11-09-2007 at 03:30 PM.. |
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11-09-2007, 03:26 PM
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Registered
Join Date: Jan 2002
Location: Long Beach CA, the sewer by the sea.
Posts: 37,673
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Perpetual energy.
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11-09-2007, 03:28 PM
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Registered
Join Date: Nov 2005
Location: Indiana
Posts: 268
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11-09-2007, 03:56 PM
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canna change law physics
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Ya canna change the laws of physics
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James The pessimist complains about the wind; the optimist expects it to change; the engineer adjusts the sails.- William Arthur Ward (1921-1994) Red-beard for President, 2020 |
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11-09-2007, 04:14 PM
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Did you get the memo?
Join Date: Mar 2003
Location: Wichita, KS
Posts: 32,317
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This just confirms so many stereotypes........
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‘07 Mazda RX8-8 Past: 911T, 911SC, Carrera, 951s, 955, 996s, 987s, 986s, 997s, BMW 5x, C36, C63, XJR, S8, Maserati Coupe, GT500, etc |
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11-09-2007, 04:35 PM
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Banned
Join Date: Mar 2007
Location: Ft.Lauderdale, FLORIDA
Posts: 2,813
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What's an EGR?
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11-09-2007, 04:40 PM
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Registered
Join Date: Apr 2001
Location: Linn County, Oregon
Posts: 48,513
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Quote:
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"Now, to put a water-cooled engine in the rear and to have a radiator in the front, that's not very intelligent." -Ferry Porsche (PANO, Oct. '73) (I, Paul D. have loved this quote since 1973. It will remain as long as I post here.) |
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11-09-2007, 04:56 PM
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Driver
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Here's another genius idea:http://www.mx6.com/forums/2g-mx6-forced-induction/194308-turbo-mod.html
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1987 Venetian Blue (looks like grey) 930 Coupe 1990 Black 964 C2 Targa |
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11-09-2007, 06:12 PM
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sudo apt-get purge 930
Join Date: Jul 2006
Location: Brandon, FL
Posts: 4,838
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Looks like something you'd find here: http://kalecoauto.com/index.php?main_page=index&cPath=1&zenid=853e35073067939d160b4370bcb89f50
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Mark 1979 930 Euro ***GONE AND DON'T MISS IT AT ALL*** "Worrying about depreciation on your car and keeping mileage down is like not ****ing your girlfriend so her next boyfriend finds her more appealing" --clutch-monkey |
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11-09-2007, 06:19 PM
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Registered
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Reminds me of the guy on this forum who wanted to blow the air from his AC into the fan of his air cooled motor to keep the temp down.
They probably laugh at that one on the Corvette forum.
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1979 911 SC Silver 2002 996 race car 2005 Ford Excursion |
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11-09-2007, 06:30 PM
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sudo apt-get purge 930
Join Date: Jul 2006
Location: Brandon, FL
Posts: 4,838
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Quote:
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Mark 1979 930 Euro ***GONE AND DON'T MISS IT AT ALL*** "Worrying about depreciation on your car and keeping mileage down is like not ****ing your girlfriend so her next boyfriend finds her more appealing" --clutch-monkey |
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11-09-2007, 06:41 PM
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Dog-faced pony soldier
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Make sure you suck in some silica sand first to clean out the cylinders and exhaust valves.
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A car, a 911, a motorbike and a few surfboards Black Cars Matter |
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11-10-2007, 04:21 AM
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Registered
Join Date: Oct 2006
Location: new england
Posts: 263
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I forget whose sig line this is, but clearly, "stupidity, like hydrogen, is one of the basic building blocks of the universe"....
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66 911... no more 90 mazda miata 76 unimog 406 Dune Buggy! |
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11-10-2007, 06:02 AM
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Unregistered
Join Date: Aug 2000
Location: a wretched hive of scum and villainy
Posts: 55,652
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Seriously think of the gas mileage, you'd never, ever have to fill the gas tank
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11-10-2007, 06:20 AM
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Gon fix it with me hammer
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i like how he wrote "the charge air would not be that cold"
think of the even bigger increase in power he'de get if adds a massive intercooler inbetween his DEI and his Manifold, and ITB's with EFI, coupled with a MAF the MAF wont' need current as the wire will heat up automatically, it will actually generate electricity, so you can also dump the alternator, which then means better power/weight ratio All in all, only thing left on this thing is a TPS report generator with the new style coversheets...
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Stijn Vandamme EX911STARGA73EX92477EX94484EX944S8890MPHPINBALLMACHINEAKAEX987C2007 BIMDIESELBMW116D2019 |
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11-10-2007, 06:29 AM
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canna change law physics
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Actually, the idea of a cold charge coming from A/C does actually occur. In large gas turbine power plants, they can run A/C systems to sub cool liquid at night, during times where the power price is low, and then run this cooling into the inlet at peak times to sub cool the air producing more output at higher effciency.
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James The pessimist complains about the wind; the optimist expects it to change; the engineer adjusts the sails.- William Arthur Ward (1921-1994) Red-beard for President, 2020 |
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11-10-2007, 06:25 PM
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Unregistered
Join Date: Aug 2000
Location: a wretched hive of scum and villainy
Posts: 55,652
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Ya know what the funniest thing is? Lots of them genius vette owners (and a few porsche owners too) didn't realize that post was a joke. They took it serious.
POWNED! |
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11-11-2007, 07:05 AM
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Gon fix it with me hammer
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Quote:
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Stijn Vandamme EX911STARGA73EX92477EX94484EX944S8890MPHPINBALLMACHINEAKAEX987C2007 BIMDIESELBMW116D2019 |
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11-11-2007, 07:12 AM
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Unregistered
Join Date: Aug 2000
Location: a wretched hive of scum and villainy
Posts: 55,652
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Yep there are, but I read it closer and checked out a little deeper, it was a joke.
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11-11-2007, 07:23 AM
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1970/1982 Porsche 914-6/911SC 2.7 RS
Ducati
1987 Porsche 930 3.3T
2015 
BimForce the Third, Esquire
