C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Air pump eliminator????

Thread Tools
 
Search this Thread
 
Old Mar 20, 2002 | 10:08 PM
  #1  
siberianhusky911's Avatar
siberianhusky911
Thread Starter
Instructor
 
Joined: Mar 2002
Posts: 106
Likes: 0
From: yardley pa
Default Air pump eliminator????

What does the air pump acutally do? Does it have something to do with the cats? My cats are gutted so Cant i just take out the air pump without replacing it with anything. Why do you need a air pump eliminator to remove the air pump? Also the egr valve what does that acutally do. Isnt that something to do with the exhaust too. Will it hurt if that comes off too? Thanks everyone Ron :)
Reply
Old Mar 20, 2002 | 11:11 PM
  #2  
siberianhusky911's Avatar
siberianhusky911
Thread Starter
Instructor
 
Joined: Mar 2002
Posts: 106
Likes: 0
From: yardley pa
Default Re: Air pump eliminator???? (siberianhusky911)

Where's all the love? :D I know this are easy questions for some :)
Reply
Old Mar 20, 2002 | 11:16 PM
  #3  
VetteNoob's Avatar
VetteNoob
Le Mans Master
20 Year Member
 
Joined: Jan 2002
Posts: 5,320
Likes: 4
From: Kyle TX (Because Mojo Made me fill it in)
Default Re: Air pump eliminator???? (siberianhusky911)

I dont have luv to give ya, but from what I have read here on the forum, the pump elim kit only helps to clean up the engine compartment and reduce some weight. It does take some stress off the engine, but not enough to justify the cost of the kit. Im thinking most people get it to clean things up in the engine compartment. At least that is why I will eventually get one.
Reply
Old Mar 20, 2002 | 11:23 PM
  #4  
Eduardo L98 1991's Avatar
Eduardo L98 1991
Pro
25 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Apr 2000
Posts: 589
Likes: 3
From: Acapulco Guerrero
Default Re: Air pump eliminator???? (siberianhusky911)

The air pump pushes air inside your exhaust manifold to help to burn the gases that are not correctly burned (oxidation), then you will have less polution exhaust gases.
Then the brake pump loss power to the engine (drag loss), if you take off the air pump you can gain some ponies.
The bracket air pump eliminator came with the plugs for the manifolds.
Some peoples says that the engine looks cleaner because you remove the smog box and the hoses. Less parts in your engine.
I believe that yes, you can gain more ponies but I don´t believe that 20 hp like tuners says !
I will buy the eliminator kit because my air pump sounds and I don´t need to pass pollution tests.
Yes, the egr is part of the exhaust (intake base manifold to exhaust manifold)
hope this helps !



[Modified by Eduardo L98 1991, 9:32 PM 3/20/2002]
Reply
Old Mar 21, 2002 | 04:50 AM
  #5  
pablocruise's Avatar
pablocruise
Le Mans Master
20 Year Member
Active Streak: 30 Days
All Eyes On Me
Photogenic
 
Joined: Jul 2001
Posts: 8,183
Likes: 3
From: Santa Maria, CA
Default Re: Air pump eliminator???? (Eduardo L98 1991)

The air pump pushes air inside your exhaust manifold to help to burn the gases that are not correctly burned (oxidation), then you will have less polution exhaust gases.
I think the added air mixes with the spent gasses and reacts with the catalytic substrate which is coated with ________(can't remember the name of the element right now) and cuts down on HC and CO + CO2.
The bracket air pump eliminator came with the plugs for the manifolds.
or you could even leave the valve that's on there on since it is a one way valve.

I just wish this little bracket didn't cost so much money!
EGR= exhaust gas recirculation. It re-introduces exhaust gasses into the incoming A/F charge via the intake manifold, for more environment freindly combustion. That's a rough description, someone will chime in here with the real deal. So far, haven't really seen people running without it.


[Modified by 89 Paul in cal, 12:58 AM 3/21/2002]
Reply
Old Mar 21, 2002 | 08:14 AM
  #6  
Mr. Magoo's Avatar
Mr. Magoo
Team Owner
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2000
Posts: 22,379
Likes: 94
From: Damn taxes! Pimpin' Ain't Easy in Massachusetts
2018 C4 of Year Finalist
St. Jude Donor '03-'04-'08-'09
Default Re: Air pump eliminator???? (siberianhusky911)

I just bought both the Underdrive Pulleys and the Air Pump Eliminator for my '86 auto. I liked the Eliminator because it really cleans up the Engine.
As for the pulleys I'm hoping for a few more ponies..........we'll see.
Reply
Old Mar 21, 2002 | 08:49 AM
  #7  
dgoodhue's Avatar
dgoodhue
Safety Car
25 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Dec 1999
Posts: 4,691
Likes: 1
From: Framingham MA
Default Re: Air pump eliminator???? (Mr. Magoo)

Just as a warning, a few years ago on the Vettenet email list. A few member have had problems with the air pump eliminator kit. The conclusion was metal bracket was not stronger enough and was slightly warping after few years.
Reply
Old Mar 21, 2002 | 11:21 AM
  #8  
siberianhusky911's Avatar
siberianhusky911
Thread Starter
Instructor
 
Joined: Mar 2002
Posts: 106
Likes: 0
From: yardley pa
Default Re: Air pump eliminator???? (siberianhusky911)

I guess my real question is can i just take my air pump off without putting anything in its place? 160 dollars is alot for that dam eliminator
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-1

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-2

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-3

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-4

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-5

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-6

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-7

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-8

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-9

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
Old Mar 21, 2002 | 11:33 AM
  #9  
Wheelman's Avatar
Wheelman
Le Mans Master
20 Year Member
 
Joined: Jun 2001
Posts: 6,694
Likes: 3
From: Less Talk, More WOT | Houston TX
Default Re: Air pump eliminator???? (siberianhusky911)

the air pump is connected to the belt drive system of the engine, so if you take it off, youll be missing a pulley and your belt wont fit as well as mess up the rest of your belt system, since some pulleys route the belt around them and some just place tension on the backside.
Reply
Old Mar 21, 2002 | 01:16 PM
  #10  
01GT's Avatar
01GT
Racer
 
Joined: Feb 2002
Posts: 258
Likes: 0
From: birmingham al
Default Re: Air pump eliminator???? (C4Fetish)

My brother bought the kit for his 1989 and is very pleased.But he also
has no cats and straight exhaust.
01GT
Reply
Old Mar 21, 2002 | 01:29 PM
  #11  
yoslambo1@cs.com's Avatar
yoslambo1@cs.com
Safety Car
10 Year Member
 
Joined: Sep 2001
Posts: 4,095
Likes: 1
From: modland CT
Default Re: Air pump eliminator???? (siberianhusky911)

i am currently installing a 383 in my car (finished by this weekend i hope?). it is a 84. im removeing the pump but not installing any air pump eliminater. on a 84 you dont have to...that what everyone on the forum is telling me? ill know more by monday & will post my results. i can tell you the pump definetly has lots of drag. i even gutted mine & it is still hard to turn. :cuss if the pump eliminater worked on a 84 (it doesnt?) i think it would be worth the $ for the horsepower gain! good luck! :cheers:
Reply
Old Mar 21, 2002 | 02:12 PM
  #12  
CFI-EFI's Avatar
CFI-EFI
Race Director
10 Year Member
 
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Default Re: Air pump eliminator???? (yoslambo1@cs.com)

I believe that the '84 is the ONLY year that doesn't need the eliminater kit. On an '84, just buy a shorter belt. Yoslambo1, maybe your pump has bad bearings, because even a fully functional pump shouldn't draw much HP. It is the least power absorbing item driven by the belt. In MY opinion, it doesn't draw $160.00 worth of power.

BTW, the kit probably DOES work on the '84, you just don't need it, like you do for other years. 1984 owners can buy a $160.00 kit to avoid purchasing a $30.00 belt.

EGR= exhaust gas recirculation. It re-introduces exhaust gasses into the incoming A/F charge via the intake manifold, for more environment freindly combustion. That's a rough description, someone will chime in here with the real deal. So far, haven't really seen people running without it.
Basically correct. Further elaboration on what all it effects probablty isn't needed here, but be aware that the EGR is ECM controlled. The EGR is NOT active in the PE (power enhancement) mode. Therefore, it does not affect full throttle performance. And it DOES help with fuel economy at part throttle.



[Modified by CFI-EFI, 12:22 PM 3/21/2002]
Reply
Old Mar 21, 2002 | 04:43 PM
  #13  
Dr. Evil's Avatar
Dr. Evil
Le Mans Master
20 Year Member
 
Joined: Apr 2000
Posts: 5,589
Likes: 0
From: DrunkDefender
CI 1-2-3-4-5-6-7-8 Veteran
CI-IV AutoX Champ
CI-IV Burnout Champ
St. Jude Donor '07-'10
Default Re: Air pump eliminator???? (siberianhusky911)

I didnt see any significant gains on the dyno. I did before and after. It's worth maybe 2 or 3 rwhp but the different conditions could have produced those results. The conditions were similar however, I just dont have a weather station to verify. That being said I still think its worth it. It does clean up the engine bay alot and makes it easier to see your timing marks if you play with your timing alot like I do. It also takes about 22lbs off the front of the car.
Reply
Old Mar 21, 2002 | 05:14 PM
  #14  
yoslambo1@cs.com's Avatar
yoslambo1@cs.com
Safety Car
10 Year Member
 
Joined: Sep 2001
Posts: 4,095
Likes: 1
From: modland CT
Default Re: Air pump eliminator???? (CFI-EFI)

[QUOTE]I believe that the '84 is the ONLY year that doesn't need the eliminater kit. On an '84, just buy a shorter belt. Yoslambo1, maybe your pump has bad bearings, because even a fully functional pump shouldn't draw much HP. It is the least power absorbing item driven by the belt. In MY opinion, it doesn't draw $160.00 worth of power.

i have 2 pollution pumps..... both pumps you can feel the drag just by spinning it freely with your hand. 1 i gutted the other is stock.they both have drag. even if you pick up only 10 hp, $160.00 isnt much $ for the hp! race teams spend thousands for simmilar results. by the way on the 84 the resivour for the power steering attaches to the pump...how could a 84 use the eliminater? call mid america they will tell you it isnt for a 84 even though it says so in there catalog. :rolleyes:
Reply
Old Mar 21, 2002 | 07:38 PM
  #15  
CFI-EFI's Avatar
CFI-EFI
Race Director
10 Year Member
 
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Default Re: Air pump eliminator???? (yoslambo1@cs.com)

Obvously you and I disagree on the amount of power the AIR pump draws and the dollar value of that power. I agree to disagree. No point in arguing about it. To me, the 2-3 RWHP that red90sixspeed reports, sounds about right. If I were a professional race team or had their resources, I probably wouldn't be fooling with an'84.

by the way on the 84 the resivour for the power steering attaches to the pump...how could a 84 use the eliminater?
Your '84 and my '84 must have been put together quite differently. My PS reservoir is inside a bracket, on the left side of the engine, that holds the upper altenator bolt. My AIR pump is to the right of the altenator and that bracket. It looks as though a 2" shorter belt is all that would be needed to eliminate the AIR pump. I am not that familar with the kit, maybe it won't fit an '84. There certainly is no need for one. On MY car simply removing the pump and replacing the belt would do it.
Reply
Old Mar 21, 2002 | 10:52 PM
  #16  
LeadFoot's Avatar
LeadFoot
Instructor
10 Year Member
 
Joined: Dec 2000
Posts: 124
Likes: 0
From: Huntsville Al
Default Re: Air pump eliminator???? (siberianhusky911)

I agree with VetteNoob. If you want power it is a waste of money, if you want to remove some smog junk then do it.
Reply
Old Mar 22, 2002 | 01:28 AM
  #17  
yoslambo1@cs.com's Avatar
yoslambo1@cs.com
Safety Car
10 Year Member
 
Joined: Sep 2001
Posts: 4,095
Likes: 1
From: modland CT
Default Re: Air pump eliminator???? (CFI-EFI)

[QUOTE]Obvously you and I disagree on the amount of power the AIR pump draws and the dollar value of that power. I agree to disagree. No point in arguing about it. To me, the 2-3 RWHP that red90sixspeed reports, sounds about right. If I were a professional race team or had their resources, I probably wouldn't be fooling with an'84.
if i was a race team i wouldnt fool around with a 84 with a 383 either!!!
:D :D :D :D :D :D :D if i oned a 84 i wouldnt fool around with any vette but maybe a 75 :lol: :D
Reply

Get notified of new replies

To Air pump eliminator????





All times are GMT -4. The time now is 04:11 PM.

story-0
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-1
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-2
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-3
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-4
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-5
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-6
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-7
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-8
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-9
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE