air pump delete
Thread Starter
Pro
Joined: Oct 2011
Posts: 703
Likes: 76
From: leesburg fl
St. Jude Donor '12
air pump delete
When you use the air pump delete kit do you plug some of the hoses on the right side? does anyone have a picture. We found the 2 plugs to wrap up and tuck away. Just some hoses look like they go under the car. My car is a 90 L98 no cats, straight pipes all the way back.
What about the check valves, Do they stay on or come off?
What about the check valves, Do they stay on or come off?
Last edited by jim spitzer; Dec 3, 2012 at 05:42 PM. Reason: another question
Team Owner
Joined: Dec 1999
Posts: 34,873
Likes: 487
From: Lacey WA RVN 68-69
NCM Sinkhole Donor
Simply plug the vacuum lines. You can tape over the weatherpac connectors and use wire ties to keep the wires out of the way.
Remove the check valves from the exhaust manifolds and use 1/2" cast iron pipe plugs to cover the holes. Use some anti-seize on the male threads.
Remove the check valves from the exhaust manifolds and use 1/2" cast iron pipe plugs to cover the holes. Use some anti-seize on the male threads.
Team Owner
Joined: Dec 1999
Posts: 34,873
Likes: 487
From: Lacey WA RVN 68-69
NCM Sinkhole Donor
Do you mean the black pipe-style bracket that goes from the rear of the alternator to one of the exhaust manifold bolts? It stays on as it needs to support the large OEM lower aluminum bracket.
What AIR Pump eliminator kit are you using?
What AIR Pump eliminator kit are you using?
Thread Starter
Pro
Joined: Oct 2011
Posts: 703
Likes: 76
From: leesburg fl
St. Jude Donor '12
The kit that i bought is from corvette mods from the forum. it looks like the bracket isn't lining up just right. i am trying to follow the directions that came with it.
Thread Starter
Pro
Joined: Oct 2011
Posts: 703
Likes: 76
From: leesburg fl
St. Jude Donor '12
i feel like a dummy, dont laugh at me, the army says i cant hear and they pay me for it. maybe they should do something about my eyesight too cause i didnt see the extra hole on the bracket for the alternator. now it is all mocked up now we are aligning the pulleys using a straight edge and i found at ace some heavy rubber table leg caps that fit perfect for the vacuums and it looks nice. give me another hour or so and we should test fire it. it is a good thing my son is here doing the work cause i gotta take a nap.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Team Owner
Joined: Dec 1999
Posts: 34,873
Likes: 487
From: Lacey WA RVN 68-69
NCM Sinkhole Donor
There is also a tube that leads down to the main cat from the . That entire tube can be removed but the 90 degree tube coming out of the cat has to be plugged or pinched close. IF you leave the tube in place, it still could get hot after a lengthy drive and a rubber cap on that pipe could melt.
Team Owner
Joined: Dec 1999
Posts: 34,873
Likes: 487
From: Lacey WA RVN 68-69
NCM Sinkhole Donor
You can cut them and pinch them closed, but that pretty much keeps you from re-installing the AIR system if it should be needed. If the car is sold to somebody that lives in a state that requires emissions testing, it will mean replacing the manifolds.
Drifting
Joined: Oct 2012
Posts: 1,426
Likes: 0
From: Louisville KY
I hope I'm not hijacking the thread but do you know of any other year stock manifolds without air injection that fit and hook up to the stock downpipe without mods?
Last edited by 87C4_4spd; Dec 5, 2012 at 06:03 AM.
Safety Car
Joined: Nov 2008
Posts: 4,328
Likes: 15
From: Jacksonville FL
Its easy enough to cut the small tubes from each port close to the manifold and tap it out for 8mm or 5/16th bolt to screw in Did mine a couple of years ago without too much trouble. You can see a couple of the bolt heads here in this pic.
Last edited by HlhnEast; Dec 5, 2012 at 12:33 PM.
Race Director
Joined: Apr 2003
Posts: 17,699
Likes: 1,667
From: moraga ca
Drifting
Joined: Oct 2012
Posts: 1,426
Likes: 0
From: Louisville KY
[QUOTE=HlhnEast;1582492375]Its easy enough to cut the small tubes from each port close to the manifold and tap it out for 8mm or 5/16th bolt to screw in Did mine a couple of years ago without too much trouble. You can see a couple of the bolt heads here in this pic.
That looks good. I may do that...
That looks good. I may do that...