help with maxed MAF!!
TECH Addict
Joined: Nov 2001
Posts: 2,207
Likes: 0
From: College Station, Tx
You can also use the PE vs. RPM table to add fuel when the MAF is maxed out. On a supercharger vehicle this is relatively straightforward. It's a bigger kludge on a turbo car since your boost level at a given rpm can vary so much more (as compared to a supercharged vehicle). Basically you have to tune for maximum airflow at each point via pe vs. rpm, and once you enter pe mode (based on throttle position) if you are not at max boost you will be pretty rich. (after maf maxes out).
If your piping is condusive to the setup probalby the best is going with a twin maf setup as harlan has done - this would effectively cut down the metering granularity by a factor of 2, but the stock type meters are already very precise at lower airflows, so this isn't really an issue. The ford type meters definitely work, though I am suspect now of any analog circuit type voltage -> frequency converter - I don't know how pro-m's work, so that would be something to check out. Otherwise you can make one yourself with a little effort (a digital one). Which choice you go with probably depends on your piping setup.
If your piping is condusive to the setup probalby the best is going with a twin maf setup as harlan has done - this would effectively cut down the metering granularity by a factor of 2, but the stock type meters are already very precise at lower airflows, so this isn't really an issue. The ford type meters definitely work, though I am suspect now of any analog circuit type voltage -> frequency converter - I don't know how pro-m's work, so that would be something to check out. Otherwise you can make one yourself with a little effort (a digital one). Which choice you go with probably depends on your piping setup.
TECH Senior Member
Joined: Nov 2001
Posts: 10,341
Likes: 1
Originally Posted by jim@pro-m
The other is to is to take a Ford meter of any size and add a converter, this option is also available. This is what we did for Detroit Speed works to support the 600-650 rwhp corvette.
Also how would you setup the twin MAFS? (Programming wise in the PCM?)
Thanks
Chris
with the twin MAF like harlan has, woulnd work TOO well for the guys running single turbos or blowers, it could work, but the intake tube would have to be split, the seperate MAF in placed, then re-emgerd before then TB
Jim@pro-m
Is what your saying is that the stock mass air is large enough diameter to flow enough for our motors? So the stocker and your adjuster(option 1) we would be able to make like 600rwhp wiht proper tunning?
or is the solution the PNP lare bore unit that isnt made yet? I was just wondering with the calibrator that you mentioned, how well does it work, and what would then new HP limit be for a stock computered car??
thanks, I know some of this is starting to get redundant
ed
firebird455@onebox.com
Is what your saying is that the stock mass air is large enough diameter to flow enough for our motors? So the stocker and your adjuster(option 1) we would be able to make like 600rwhp wiht proper tunning?
or is the solution the PNP lare bore unit that isnt made yet? I was just wondering with the calibrator that you mentioned, how well does it work, and what would then new HP limit be for a stock computered car??
thanks, I know some of this is starting to get redundant
ed
firebird455@onebox.com
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I am in for a large bore meter with the converter built in, when they become available. Please make em
: I like how you have the ford meter listed with HP ratings on your site, that would be awesome to have something similar for the LS1.
J
: I like how you have the ford meter listed with HP ratings on your site, that would be awesome to have something similar for the LS1.J
Teching In
Joined: Jan 2004
Posts: 7
Likes: 0
From: Oak Park, MI
Maxed Maf
Originally Posted by 2FAST4U
The MAF is not maxed yet as motor is not in it, however at what horse power is the stock MAF max at 600hp? And other than the Fast system is there anyway around it. THANKS
THink if you could get this devoloped we could get a group purchase together.
that way you have some commintment and we get our product.
seems like you have alot of interest as their is a great demand for this product.
that way you have some commintment and we get our product.
seems like you have alot of interest as their is a great demand for this product.
