jaridjohn

hey fellas. i have ordered new sw headers y and cat back from hawks . also i picked up a smog delete pulley as well as under drive pulleys. aswell as the hyper tech thermo master chip.

i was just wondering if any one has any experience with this set up. and any advice or things to watch out for.

i also have a question about the egr. i totally over looked it. with this kit i think i have to delete it ?
ive done some searches on this site and they all seam to turn into an interwebfight . i dont intend to offend any one. but if i need to delete it please tell me the correct way with out web drama please. lets asume this is a track car

jaridjohn

I guess I should tell you it's a 92 convert with 305 tpi

Bob88GTA

iTrader: (2)

Well if its a "track car"............. just get the EGR Delete Plate and have you EGR functions reprogrammed out of the system.

Easy...no gripes

Ghettobird52

Curious, why do you think you need to delete EGR?

jaridjohn

im not sure if it will work with this exaust system. its off road y pipe. no cat. if it will work i will leave it. i missed the ups truck today so will get the parts tomorrow.

Ghettobird52

Maybe I'm confused here, but what does the EGR have to do with the exhaust?

jaridjohn

From what I understand it takes your burned exaust gasses from your exaust and interjects it back into your intake to be recycled once more.
That's the way it worked in my diesel pick up. I'm not to familiar with these tpi's yet but that's why I'm asking questions. I've only had this one for a few months. But I grew up with an 83 camaro and it didn't have these fancy gizmos

jwfirebird

iTrader: (2)

the "off road" headers and exhaust doesnt have the factory provisions to reuse the emissions, the 50 state or emissions ready exhaust stuff does

Bubbajones_ya

I could be wrong, but I don't think the EGR system connects to the exhaust pipes in any way on these vehicles.

I know on my bronco, there is a pipe that shoots up exhaust back into the intake, my car didn't have that.

At least for TBI, the EGR valve is bolted directly onto intake and redirects the exhaust from the heads into the intake. I would think it would be similar with TPI.

jwfirebird

iTrader: (2)

pretty sure it comes from the stock manifolds, and the cars with AIR have that going into the exhaust as well

Ghettobird52

Right that's why we're confused as to why he thinks he needs to delete his EGR

jaridjohn

Well now I'm confused. The stock manifolds will be gone. Air tubes will be gone as well.

jwfirebird

iTrader: (2)

there is no reason to have an egr with no way to get the exhaust to it. you should seal all the holes in the intake so you dont have any vacuum leaks. imo more you get rid of easier the trouble shooting in the future.

Ghettobird52

https://www.thirdgen.org/forums/tpi/646395-1990-113-vette-heads.html
Check this thread out post #13.

I'm quite sure in TPI f-bodies there is no external connection between egr and exhaust.

jwfirebird

iTrader: (2)

i stand corrected. thats a pretty weird setup, the ones i worked on had the traditional setup on the carbed ones in the 80s. seems weird they would go with that, you would think its hard to manufacture the heads and intake with the extra ports. especially in a time i dont think cnc machines were prevalent back then if at all.

i guess no reason to plug the egr, it would be difficult if its in the heads anyway. you would have oxygen sensor or sensors though that will need to be added to some of the "offroad" pipes. and if its got the air system i think those have a pipe or something, would definitely get rid of all that, its problematic as heck as they get older, especially the compressor.