Direct exhaust injection
Direct exhaust injection
Author
Discussion

Byard

Original Poster:

539 posts

204 months

Wednesday 7th December 2011
quotequote all
Ok. I didn't want to mention it but I was thinking about turbo charging my car. 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?

Marf

22,907 posts

271 months

Wednesday 7th December 2011
quotequote all
I think you've spent too long on reproducing this poor attempt at humour which is as old as the internet itself.

marshalla

15,902 posts

231 months

Wednesday 7th December 2011
quotequote all

BOR

5,149 posts

285 months

Wednesday 7th December 2011
quotequote all
I laughed out loud. Nicely done.

ikarl

4,062 posts

229 months

Wednesday 7th December 2011
quotequote all
BOR said:
I laughed out loud. Nicely done.
you laughed.... I just died a little.

The Wookie

14,209 posts

258 months

Wednesday 7th December 2011
quotequote all

R300will

3,799 posts

181 months

Wednesday 7th December 2011
quotequote all
Byard said:
Ok. I didn't want to mention it but I was thinking about turbo charging my car. 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?
Random question, Do you live on a farm?

blaineuk

2,615 posts

277 months

Wednesday 7th December 2011
quotequote all
You could always call it EGR, exhaust gas recirculation, and have a crappy valve that blocks up on a regular basis.

Major Fallout

5,278 posts

261 months

Wednesday 7th December 2011
quotequote all
blaineuk said:
You could always call it EGR, exhaust gas recirculation, and have a crappy valve that blocks up on a regular basis.
Now that is funny smile

jimxms

1,635 posts

190 months

Thursday 8th December 2011
quotequote all
How about plumbing the exhaust headers directly into the air vents in your car? That way when you start up on a cold morning, you wont have to wait as long for the hot air?

Petrolhead_Rich

4,659 posts

222 months

Thursday 8th December 2011
quotequote all
blaineuk said:
You could always call it EGR, exhaust gas recirculation, and have a crappy valve that blocks up on a regular basis.
thumbup

The Wookie

14,209 posts

258 months

Thursday 8th December 2011
quotequote all
jimxms said:
How about plumbing the exhaust headers directly into the air vents in your car? That way when you start up on a cold morning, you wont have to wait as long for the hot air?
It's called a Volkswagen Beetle hehe

aw51 121565

4,773 posts

263 months

Saturday 10th December 2011
quotequote all
jimxms said:
How about plumbing the exhaust headers directly into the air vents in your car? That way when you start up on a cold morning, you wont have to wait as long for the hot air?
That's unsubtle.

A sealed small room with one allegedly-humanoid inhabitant is good for a start - wait for the banging and scratching at the (sealed) door to stop, then allow ten minutes - and the process will be complete smile .

Am alternative would be a sealed room with the air being pumped out. They don't feel a thing if depressurization is rapid. So I am told wink .

[camp]You guys! *Tsk*[/camp]

richtea78

5,574 posts

188 months

Saturday 12th January 2013
quotequote all
The Wookie said:
Isnt that Fungus the Bogeyman, therefore not a troll??