LT1'ers - DELETE YOUR AIR PUMP!

[DETROITMUSCLE]

it won't hurt the cats, your car will just be less emissions friendly at startup. You will probably have to have the code tuned out if it comes up, I'm not sure if it would or not.

[md80zdriver]

so i know alot of people delete the air when they upgrade to headers and get rid of the cats....If someoneput in headers with a catted Y pipe...do they need to keep the air?

I kept the air pump, when I put my headers on. Also got rid of the cat. And I just replaced the air pump this summer. When I found out it wasn't working. The engine was running in open loop. Since replacing the air pump the engine is in closed loop and runs smoother and the gas mileage is better. Just my two cents.

Rick

[81DaytonaPaceCar]

so its not harmful to your car to delete it with cats...only harmful to the environment?!!

No impact to the environment whatsoever...the amount of carcinogens being emitted is the same.

But like Jeff said, you may throw a code because the perceived concentration is greater.

[dirtybird]

kind of a bump...

this just happened to me, re did my intake mani gaskets n moved the lines over out of the way a little, didnt move em back over n they lodged themselves onto the pipe. now im carless til i can fix it :/ poor dirtybird

[meissen]

Eek, sorry to hear Jake. But thanks for bumping this thread - it's been awhile since this thread was bumped -- with most of our cars down for storage, it'd be a great time for some folks to consider deleting the air pump over the winter.

[Atrus]

Eek, sorry to hear Jake. But thanks for bumping this thread - it's been awhile since this thread was bumped -- with most of our cars down for storage, it'd be a great time for some folks to consider deleting the air pump over the winter.

I'm not an LT, but I am absolutely !AIR and !EGR this winter. I have all the blockoff plates and gaskets ready to go.

[meissen]

Good plan - it's all useless anyway (since we're in MI and don't have emissions)

[JoeliusZ28]

Dont let finding block off plates hold you back either, they are EASY to make on your own if you have basic tools. Just trace the gasket outline onto some 1/4 steel, cut it out, drill the bolt holes and youre done!

[94_LT1_Z28]

Dont let finding block off plates hold you back either, they are EASY to make on your own if you have basic tools. Just trace the gasket outline onto some 1/4 steel, cut it out, drill the bolt holes and youre done!

I'm running custom Joel block off plates. When I had my intake off I sealed and retightened the bolts

[killa89trans]

just capped mine off when i instlled the headers

[dirtybird]

I'm probably gonna make my own aswell. Oh and what was just a small problem just got worse, i realized the opti vent hose got melted on the manifold aswell, I'm gonna call rinke up tomorrow to get some ordered.

[Atrus]

Dont let finding block off plates hold you back either, they are EASY to make on your own if you have basic tools. Just trace the gasket outline onto some 1/4 steel, cut it out, drill the bolt holes and youre done!

I got some from Summit - $25 shipped for all !AIR and !EGR with Kooks plates:

EGR Plate - KOK-9125BO ($3.24), need 1
AIR Plate - KOK-9126BO ($3.24, need 2 (listed as EGR, but it's for AIR)
EGR Plug - RNB-10230 ($2.95, need 1)

I got Felpro EGR gaskets too, all $25 shipped. Worth my time to just order them. Note, these are for LS engines, and I have NOT installed yet, so I can't guarantee fitment yet.

[nascarnate326]

my block off plates are from eBay and they worked great.

prettys up your engine bay a little too

[JoeliusZ28]

Making them out of scrap is free at the cost of about 30 minutes

[alone_and_insane]

I had a problem with the block-off plate for my header not sealing. Can't remember where I got my kit though...