80mm Pro-M on a 408 with 18psi?
80mm Pro-M on a 408 with 18psi? Since Pro-M is making GM MAFs now and since my SD tune gets horrible mileage, I am considering getting an 80mm Pro-M for use as a blow-through MAF. Does anyone have any experience with Pro-M on GMs, or as blow-throughs?
BTW the 80mm is said to support up to 800hp.
BTW the 80mm is said to support up to 800hp.
Originally Posted by Speed Inc Webmaster
We have done 845RWHP on a Stock/Screened GM 3.5" MAF
It's not a maf problem, the ecm can't read that high. So you crutch it with a PE vs rpm tune with ls1edit...and you tune it too rich so it will not be lean on cold days. Unless Speed has tapped into a 3bar map sensor,etc. but I thought LPE was the only game in town for that.
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I believe Harlan is running two stock GM mafs actually. Extra electronics ARE needed for this, not as easy as plugging in two mafs.
His old setup was a single rescaled Pro-M with some fancy LS1Edit work...or whatever software he uses.
His old setup was a single rescaled Pro-M with some fancy LS1Edit work...or whatever software he uses.
yep he's running two stock mafs into a driver or something. he told me once but come on, he told me he used pin blah blah blah, not really he said something but I just didn't know what he was talking bout lol. wish I knew as much as him so I could understand.
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no expierence with gm pro-m's, but the ford Pro-M mafs seem to leave a lot to be desired lately. Back in the day when the 5.0's were popular, the Pro-M maf's were good, but lately i have been seeing questionable outputs from them, and normally have people convert to a drawthough setup with the oem meter, and it works much better.
Ryan
Ryan
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Pro-M's for Stangs are a hit or miss on getting one to work right with your combo.Pro=M was suppose to send us out a 80mm MA over a year ago to test but it never came,so can't tell you how they work on GM's.
Originally Posted by smokinHawk
but arnt you running blind at that point because the MAF cant read that high?
Originally Posted by onfire
It's not a maf problem, the ecm can't read that high. So you crutch it with a PE vs rpm tune with ls1edit...and you tune it too rich so it will not be lean on cold days. Unless Speed has tapped into a 3bar map sensor,etc. but I thought LPE was the only game in town for that.
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Originally Posted by Speed Inc Webmaster
technically yes, but for he is looking for better gas mileage....
We will be testing out a 3bar MAP setup soon
We will be testing out a 3bar MAP setup soon
A 3 bar would be the way to go cause the PCm doesn't know what to do with these high MAF values. It would be cool to ahve a nice easy 3 bar to convert or adapt too, I am dreaming right now though.
Originally Posted by Blue99Ws7
yep he's running two stock mafs into a driver or something. he told me once but come on, he told me he used pin blah blah blah, not really he said something but I just didn't know what he was talking bout lol. wish I knew as much as him so I could understand.
I realize how dumb I am when I try to listen to him. " yeah I use a triple crossover with a pull down to a square wave convertor "
But I am definately impressed with the whole setup that the guys have accomplished. The Stenod crew has it going on. Harlan is a nice, smart, gifted guy, that doesn't know how to drive Canadian Beer.
Roman
