How high can stock MAF go?

84convertablegt said:

Kinda what the subject says? How much horsepower can the stock throttle body support before it pegs? They are 70mm on sn95's right? I know an aftermarket will flow more, but was just wondering how much hp the stocker can support? Thanks!

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maf is 70 tb is 60. there are 9 sec cars on stock tb

84convertablegt said:

ok, sorry i asked the questions wrong. how much can the stock maf support, not the tb? i blew that one. im not concerned with the throttle body, just the MAF sensor.

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im going to guess about the point you would need new injectors. i think thats close to 290+

grady is the one to ask he's pushing a lot of hp all on his stocker and talks a lot of people out of wasting the money for a new one talked me out of it. he has a lot of numbers and stuff to prove his point maybe he'll chime in here for you

seems to max out at the 300-ish rwhp mark.

84convertablegt said:

Kinda what the subject says? How much horsepower can the stock throttle body support before it pegs? They are 70mm on sn95's right? I know an aftermarket will flow more, but was just wondering how much hp the stocker can support? Thanks!

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Here is some basic info for how the maf works and how it's info is processed by the pcm.



Having read that you can see that it is NOT about hp or fuel when talking about mafs ...... it is all about ...... AIRFLOW.

It is not fair to use my combo to judge airflow production as I was able to use my Tweecer to give me a little more capability with the airflow but never the less, that combo still pegged the stocker. You need to know somebody who does not have the ability to make pcm changes will max or peg their stocker a bit sooner.

I'm not trying to be elusive about answering your Q but try to look at it this way. A ported oem iron head h/c/i combo with all supporting parts is most likely not gonna produce as much airflow as the same combo with a set of better flowing Aluminum heads.

See what I mean?

On the other hand ................

Here is some some ball park kind of info that might help based on my dataloggs from my combo and from other combos I've seen.

It is my belief that a h/c/i combo with a set of TFS, AFR, or any good flowing head with all of the supporting parts that work well toghther and using an untuned 94-95 pcm is gonna peg the stock maf at around the 280 to 290rwhp point.

Then again, that just ain't gonna happen cause you always run outta fuel way before you run outta airflow when talkin about using stock tb/maf/inj's at stock fuel pressure AND maintaining an OPTIMUM air to fuel ratio.

Grady

I would sug. a 90mm Lightning MAF, I would not run boost with a stock meter, unless you only rev it to like 3k and dont go WOT past that until you get a bigger meter.

i thought you needed a different type of maf when you went forced air?

cent. chargers push air, so you will need a blow threw.

roots blowers like the KB suck air threw the MAF so you can use a draw threw unit, and ford already makes one for the gen2 lightning and 03-04 cobras that have a very close MAF transfer.

ah ok