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Joined: Feb 2003
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I am just wondering will a 98 or 99 cobra MAF work on a 98 SVT Tour? I am thinking about getting one and trying it. But I am just wondering if it will work or not... Thats all
Last edited by SVTSleepr; 10/04/03 03:43 PM.
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Joined: Sep 2000
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Hard-core CEG'er
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Hard-core CEG'er
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it would work, but I dont see it working very well. Chances are, you havent maxed out the flowing capacities of your stock MAF. You would also need a custom tuned chip to support it as well.
Im using a 80mm 2002 Mustang maf but thats only because Im running a 3.0L and Street Flight turbo kit.
Jim Hahn
1996 T-Red Contour SE Reborn 4/6/04
3.0L swap and Arizona Dyno Chip Turbo Kit
364 whp, 410 wtq @ 4,700 rpm
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Joined: Sep 2002
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I just posted the same comment in another thread...
Unless you are going to do some serious modding(such as beyondloadedse), you don't need the bigger MAF.
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Joined: Aug 2002
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im using one also, but streetflight is making me a chip to work with it.
its gonna be on my 3L with all the goodies!
Russell
Oval Port 3L Nearly Done
MTX75 w/ Homebrew Zetec FD and Torsen Complete
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I've been running mine for over a year with no problems. I also have an SAFC to recalibrate things though.
** Mike **
"You might beat me in a straight line, but I'll embarass you in the turns"
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Joined: May 2000
Posts: 21,197
I have no life
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I have no life
Joined: May 2000
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Originally posted by EuroTour99:
I've been running mine for over a year with no problems. I also have an SAFC to recalibrate things though.
Yea except for the stuttering after warm up.   What i've read over the years is that it's not a good idea. When the computer finds it you're not going to receive gains. I'd go with a Proflow.
-'96 SE MTX 3L
-'98 SVT 1,173 of 6,535
-'05 Mazda 6s, loaded, g/f's ride
-Need a 96-00 manual on CD? PM or email me
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Using a MAF calibrated for a larger displacement engine is a very bad idea. It will leave almost no room to tune idle and off idle running (read below 2000rpm) as the MAF not be calibrated for such low kg/hr draw points and start at what a larger engine would draw at low rpm levels.
Also you will only be using about 2-2.5 volts of the 5 volt spectrum so the rest of your tuning will not be as precise or consistent.
2000 SVT #674
13.47 @ 102 - All Motor!
It was not broke; Yet I fixed it anyway.
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Joined: May 2000
Posts: 21,197
I have no life
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I have no life
Joined: May 2000
Posts: 21,197 |
-'96 SE MTX 3L
-'98 SVT 1,173 of 6,535
-'05 Mazda 6s, loaded, g/f's ride
-Need a 96-00 manual on CD? PM or email me
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Joined: Aug 2002
Posts: 3,732
Hard-core CEG'er
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Originally posted by DemonSVT:
Using a MAF calibrated for a larger displacement engine is a very bad idea. It will leave almost no room to tune idle and off idle running (read below 2000rpm) as the MAF not be calibrated for such low kg/hr draw points and start at what a larger engine would draw at low rpm levels.
Also you will only be using about 2-2.5 volts of the 5 volt spectrum so the rest of your tuning will not be as precise or consistent.
even with a custom chip from streetflight?
Russell
Oval Port 3L Nearly Done
MTX75 w/ Homebrew Zetec FD and Torsen Complete
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Joined: Sep 2000
Posts: 9,602
Hard-core CEG'er
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Originally posted by Russell:
even with a custom chip from streetflight?
You are still stuck using the flow calibration of the meter.
(generalized example)
If the MAF calibration has 200kg/hr as .1 volts and you idle at 75kg/hr you will never be able to tune idle worth a damn.
This is what I mean by not leaving any room for the MAF to read properly at such low flow rates.
Yes a chip can help compensate ($$$ of dyno time!) but even if you trick the PCM into making that 200 look like 75 for a stable idle when you leave idle and are flowing under the MAF's minimum you will always run lean!
Your best bet is to get a MAF calibrated for your kg/hr range of operations. An SVT MAF is a good place to start (it has a higher maximum kg/hr flow calibration and can support ~300FWHP)
Also a Pro-M (straight calibration) would be a great choice due to it's less restriction. (No center post) Then you can take the supplied transfer function and have it used as a base for your program.
2000 SVT #674
13.47 @ 102 - All Motor!
It was not broke; Yet I fixed it anyway.
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