RX7Club.com - Mazda RX7 Forum - Smog Pump losses?

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WobblyBobbly

01-25-19 09:59 AM

Smog Pump losses?

My FC still has the smog pump. This would seem to be kinda unnecessary, and I live in an area that doesn't require emissions testing.

What would it take to remove it? Other than reducing complexity (which is always good in my book :D ) what kind of gains in HP / TQ / MPG could I expect?

On the other hand, if there's a bunch of fiddly stuff that would get screwed up by removing it, I'd leave it under the heading of "if it ain't broke, don't fix it." :nono:

j9fd3s

01-25-19 10:02 AM

its in the isn't broke don't fix it category.

gains in hp/tq is zero, and if anything mileage goes down

Relisys190

01-25-19 10:08 AM

What year is the vehicle? The 89-91 cars rely on the air pump for aux port actuation.

WobblyBobbly

01-25-19 04:09 PM

Quote:

Originally Posted by Relisys190 (Post 12326376)

What year is the vehicle? The 89-91 cars rely on the air pump for aux port actuation.

Mine is a 1991 Convertible. Didn't know about the aux port actuation...and we kinda need that! Seems like a lot of hardware just to run one little actuator though...

Relisys190

01-25-19 05:01 PM

It operates the 5th and 6th ports located in the side irons and it also supplies the air for the VDI intake system. There’s a write up somewhere where electronic actuators were used to operate used in conjunction with an rpm sensor? Interesting stuff.

-M

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