Smog Pump Elimination?
Thread Starter
Intermediate
Joined: Sep 2005
Posts: 27
Likes: 0
Smog Pump Elimination?
I'm thinking about getting rid of my noisy smog pump (air pump) with an eliminator kit. Will the computer on my 91 (OBD1) know it's gone?
BTW, Vendor claims 20hp gain... I say no way. Anybody have any experience here?
Rob
BTW, Vendor claims 20hp gain... I say no way. Anybody have any experience here?
Rob
Last edited by GreenG; Oct 18, 2005 at 02:11 PM.
Le Mans Master
Joined: Jul 2002
Posts: 5,818
Likes: 2
From: Alive and well in Burlington NC
Replaced mine almost a year ago (noisy also). The ECM won't care (no codes). However, before a smog test you'll need to make sure the engine is up to temp. Also, if you live in an area that requires a visual inspection as part of the inspection process (like Cal.), it won't pass.
Le Mans Master
Joined: Jan 2003
Posts: 5,858
Likes: 7
From: Santa Maria CA
Originally Posted by GreenG
BTW, Vendor claims 20hp gain... I say no way. Anybody have any experience here?
Rob
Team Owner
Joined: Sep 2001
Posts: 62,140
Likes: 1,728
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
It wont add HP, it'll remove useless crap from the engine bay. So long as your engine temps are up, you will pass a sniffer.
Le Mans Master
Joined: Jan 2003
Posts: 5,858
Likes: 7
From: Santa Maria CA
Originally Posted by Steel Blue 91
Also, if you live in an area that requires a visual inspection as part of the inspection process (like Cal.), it won't pass.
That's why I just gutted mine and got rid of the noise. Still pases visual cause the mod is internal. Plus I can't justify the high cost of these brakets anyway.
Drifting
Joined: May 2005
Posts: 1,302
Likes: 1
From: Tomahawk WI
It will add 0 HP
The parasitic drag of the smog pump, provided it is functioning properly, is almost 0 as well.
The pump weighs very little so you will not achieve any significant weight loss by removing it.
The only significant advantages to removing the smog pump would be to remove the clutter of the air pump in the engine bay and to eliminate a pump that is not operating properly.
Anything else is fluff.
Edit: FYI, I eliminated mine.
The parasitic drag of the smog pump, provided it is functioning properly, is almost 0 as well.
The pump weighs very little so you will not achieve any significant weight loss by removing it.
The only significant advantages to removing the smog pump would be to remove the clutter of the air pump in the engine bay and to eliminate a pump that is not operating properly.
Anything else is fluff.
Edit: FYI, I eliminated mine.
Last edited by AZC4Guy; Oct 18, 2005 at 05:05 PM.
Thread Starter
Intermediate
Joined: Sep 2005
Posts: 27
Likes: 0
Originally Posted by 86PACER
That's why I just gutted mine and got rid of the noise. Still pases visual cause the mod is internal. Plus I can't justify the high cost of these brakets anyway.
Le Mans Master
Joined: Jan 2003
Posts: 5,858
Likes: 7
From: Santa Maria CA
Originally Posted by GreenG
How'd you gut it? I'd rather do that.... Is it obvious?
Best part is that it's free.
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