High Performance MAF?

a-5 freak · Apr 11, 2009

Well, Today I went out and bought a spectre high flow MAF housing because the stock 2.3l was too restrictive.I have a 1991 ranger 2.3l. I installed it and when I started it up, it ran like poo. Everytime I would give it some gas, the whole truck would shake and sputter back into life. I have read that the MAF sensor is very sensitive when it comes to calibration. Is there a way I could possibly make this work?

I have also read that after 5 or so days, that the engine will learn and teach itself. Is this true?

locovaca · Apr 12, 2009

The MAF sensor is calibrated to the housing it came with. The MAF only reads a portion of the airflow going through the housing and then that number gets multiplied out to figure out the total volume. If you replace that housing with something bigger, it will throw all of the equations out of whack.

I know there are different sized MAF sensors used on different engines, if anything will work it'll have to be a sensor from a similarly sized MAF housing.

(And I'm curious, why do you think the MAF sensor is "too restrictive?" Unless you have a bigger TB, that's more restrictive than the MAF housing)

Beanmachine7000 · Apr 12, 2009

locovaca said:
(And I'm curious, why do you think the MAF sensor is "too restrictive?" Unless you have a bigger TB, that's more restrictive than the MAF housing)

Me too... I believe some people just think since someone makes a 'bigger' something that the one your truck somes with is restrictive...

Bryan22 · Apr 12, 2009

you can't use it. take it back to autozone for a refund.

you have to use the stock MAF housing. you can make an adapter if you want, or buy one.

rurouni20xx · Apr 13, 2009

he can use it, if he has a standalone or some other way of programming it along w/ his pcm. modifying the maf also hurts engine performance by generating turbulence that throws off the maf reading as well. your best bet and cheapest route w/o having to redo the whole computer system is install your factory maf in its housing and call it a day. personally, i wouldnt bother worrying w/ the maf unless your boosting the engine above 20 psi or attaching it to a 5.0 engine, it is not restrictive at all for such small displacement. if i was looking for gains id take out the "silencer" in the intake tube and leave the rest alone. if there was a larger t/b however, id look into that, but i havent found one yet.

Gotta_gofast · Apr 13, 2009

upgrade to a 98-00 manifold, port it out to accept a bbk 56mm throttle body. Worked very well for me.

rurouni20xx · Apr 13, 2009

this is on a 2.3 gofast, i dont know if that will work on a 2.3 like a 3.0 will.

Gotta_gofast · Apr 13, 2009

rurouni20xx said:
this is on a 2.3 gofast, i dont know if that will work on a 2.3 like a 3.0 will.

Ah, touche! I'm tired, thought I saw 3.0L in the sig. Maybe I was lookin at someone else's. lol. In that case, grab any briggs & Stratton 10 horse and swap it in there. That should give you a noticable increase.

fastpakr · Apr 13, 2009

Why would it give a noticeable increase? There is ZERO evidence that the factory system is restrictive.

rurouni20xx · Apr 13, 2009

hence the reason i said reinstall the factory maf. there isnt any proof stating the silencer is restrictive either, but some say it makes a dif. i wont touch the maf since its doing its job just fine, the rest of the intake (airbox, intake charge hose and intake tube diameter besides the silencer and throttlebody reducer) is the same as a 3.0 and 4.0, more than enuff to power the lil 2.3.

a-5 freak · Apr 14, 2009

Wow so many answers! I was just looking to add a little "bling" to the intake by adding 3 inch chromed pipe to the TB. I guess i will just leave it alone as it is. I have already swapped the Exhaust manifold for a 2000 header.

Bob Ayers · Apr 14, 2009

fastpakr said:
Why would it give a noticeable increase? There is ZERO evidence that the factory system is restrictive.

+1

Manufacturers make their intakes (along with air filters, and air boxes) as efficient as possible. All you did was screw up a system that was already "tuned" properly!

Beanmachine7000 · Apr 14, 2009

Bob Ayers said:
+1

Manufacturers make their intakes (along with air filters, and air boxes) as efficient as possible. All you did was screw up a system that was already "tuned" properly!

+1... The only time you would need to modify an engine air intake or exhaust to gain power is if you were to modify the internal structure of the engine to where it was trying to use more air than the stock components can provide...

rurouni20xx · Apr 14, 2009

like say big bore/stroker/porting/high lift cam grind...

fastpakr · Apr 14, 2009

Maybe the cam, but the rest of it really doesn't do that much. Again, none of these parts are restrictive even on the 4.0's, so the fractional displacement/airflow changes you get from bore/stroke/porting aren't an issue.

High Performance MAF?

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