90mm MAF / KB ?

[sgarlic]

Ok, so as you guys may or may not know, Kenne Bell specifically recommends using only their 90mm MAF and big tube setup with their 99-04 kit. They also say the OEM maf is pegged at around 408rwhp..

Here's my question.

Are any of you 9psi KB guys using another MAF, say the 90mm Lightning/Cobra MAF, without modifying the KB tune? If so, are you having any problems? Is there even a difference between the "KB" MAF and the cobra MAF, or is it the same thing? Also, isn't the lightning MAF calibrated for 42 pound injectors? The KB kit uses 36#, so what's the trick around that?

 

[jstreet0204]

The LMAF and corbra mafs is not calibrated to any injector size. The injector size is handled in the tune. The MAF has a flow table that simply translates pounds per hour to a specific voltage. That table is programmed into the tune as the maf curve.

As to whether KB is just repackaging an OEM lightning or cobra maf, I don't know, but if the MAF's are different, you have to modify the tune to change it.

 

[sgarlic]

Only one person on these forums with an opinion? Wow.

 

[san~man]

You may be better off posting this on MPH or Modularfords (KB tech section) for better results.

I think only a qualified installer or KB themselves can answer this correctly.

 

[urban96]

i have the bigtube kit. pretty sure its just the L maf. i would assume you will need a retune but i would ask a tuner or KB first

 

[Jakes]

Everything jstreet said is correct. By the way, when I got my KB blower they told me the stock maf was good to 500hp. I wonder if they're trying to sell a 90mm maf/tube kit..... ya think.

 

[DBMSTNG]

do not change the maf without changing the tune.