Early T1 - EGR necessary?

I know that there is an EGR valve between the draw-through throttle body and the turbocharger in an early T1. I'd like to do away with that, and route the TB directly to the turbo, and relocate it at the same time. This is so i can run a later style manifold with my draw-through IC setup, and i understnd the log manifold starts to suck with higher boost.

So, would removing the EGR screw up the way the car runs? Could i get away with just scrapping all of the vacuum lines, or would i have to run them off of a pressure source? I know the T2 cars don't have an EGR valve, but i'd like to check before i try this.

If not, i'll just figure out a way to keep the EGR valve and still do what i want, but i'd rather not solve a problem if i don't have to.

Thanks!

-Aston

[zark]

Back in the day, folks used to stick a metal plate between the intake and the EGR to block the hole. It'll run fine, as long as the electronics 'see' that the solenoid is still hooked up and working, even if it's not doing anything.

[R/T]

Throw all that crap away.

No EGR needed, and no codes happen.

I have tapped the hole in the elbow and run a bolt in, or a plate across the flange, too. Then a bolt in the swingvalve to block it off.
And also have made a T2 style intake for the turbo.

All vac lines to the TB are for emissions, cap them off.
( not the brake booster though!! )

Only *4* vac lines are needed to run the car:

1. Manifold to FPR
2. Manifold to MAP
3. Manifold to WG selinoid or boost control.
4. Manifold to boost guage

Makes it BUNCHES easyer to work on...

[toddipoo]

R/t
Just gave me the idea to finnaly rip out all thosee crappy old plastic vac lines....
MUHAHAHHAHA!!!


-toddi

You rock, thanks!

I guess i have a new project, and hopefully it works a bit better.

-Aston

[R/T]

Or I did this on my son's 86 GTS LeBaron:

A short rubber line from the black plastic vac cannister on the manifold to the FPR - the small fitting. I like to keep a dedicated vac/pressure source for the FPR; kinda important.

THEN:

Ran ONE bigger rubber line from the black plastic vac cannister on the manifold over to the selinoid pack on the fender, THEN used a plastic 4 way vac splitter to run short lines to the MAP and WG selinoids, and to the inside for the boost guage.

You may also need a line from the WG selinoid back over to the WG if you'r using computer control, or a split in the bigger line for a G valve, etc..

Clean install.... "thumbs up

[zark]

Quote:

Originally posted by R/T ...Then a bolt in the swingvalve to block it off...

An old oxygen sensor works well for this too. Same size threads.

[kc8cie]

Doesn't the EGR recirculate hot exhaust gasses back into the intake to be "burnt" again? If so, wouldn't removing it also help to keep the intake cooler, and allow that space occupied by the hot exhaust gas to be replaced with cooler oxygen?