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MAF Theories???

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Old Jul 9, 2001 | 02:12 PM
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From: Doghouse ······································ Car: 1989 Formula 350 Vert Engine: 350 L98 Transmission: 700R4 Axle/Gears: B&W 3.27
Car: 87 Formula T-Top, 87 Formula HT
Engine: 5.1L TPI, 5.0L TPI
Transmission: 700R4, M5
Axle/Gears: Sag 3.73, B&W 3.45
MAF Theories???

In Theory, it should be possible to take a Duel Inlet MAF system and put the MAF on one side, Balance the other side to have the same restrictive airflow to balance the two sides. Tell the computer to expect only 1/2 the expected airflow.

any thoughts?, I think it would beat the heck out of pulling the screens out.

Before you say no-way, consider the O2 sensor workes on only 1/2 the engine.

i think it would work... it might take a radically programed PROM, but it should work.
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Old Jul 9, 2001 | 03:18 PM
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From: Hollywood, FL
Car: 78 Regal
Engine: 82 FBod LG4 305, 730 ECM
Transmission: M20
Axle/Gears: 4.10
Go to the site that Grumpy posted the other day. Bailey Engineering or something like that. They have a MAF translator which allows you to use a MAF that will flow a lot more and converts the signal to the ECM as half of actual. Now, I don't know if it's a TR (148) specific thing or if it can be used on a 165. That you'll have to see for yourself.
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Old Jul 9, 2001 | 04:43 PM
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From: In reality
Car: An Ol Buick
Engine: Vsick
Transmission: Janis Tranny Yank Converter
<font face="Verdana, Arial" size="2">Originally posted by okfoz:
In Theory, it should be possible to take a Duel Inlet MAF system and put the MAF on one side, Balance the other side to have the same restrictive airflow to balance the two sides. Tell the computer to expect only 1/2 the expected airflow.
any thoughts?, I think it would beat the heck out of pulling the screens out.
Before you say no-way, consider the O2 sensor workes on only 1/2 the engine.
i think it would work... it might take a radically programed PROM, but it should work.
</font>
It's been tried, and was a failure.
MAF scalers and such are a PITA. Ya, given unlimited time effort and money you can do anything, but why?.
For 1/10 of the work you suggest you could go MAF and have no grm/sec liimit issues.
taking screens out ***** nilly is just silly. The calibration of the MAF sensor is what makes MAF so good, tossing the screens just screws up the calibration of the sensor. If you go over to the Gnttype.org list and look at the relocated MAF article you can see some of what I've done, and if you study it for a while it will make lots of sense.

The Translator stuff is all 148 specific for now. There was a volunteer for working with Bailey on a 165 MAf system, but I lost track of that.

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Old Jul 9, 2001 | 04:53 PM
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From: Doghouse ······································ Car: 1989 Formula 350 Vert Engine: 350 L98 Transmission: 700R4 Axle/Gears: B&W 3.27
Car: 87 Formula T-Top, 87 Formula HT
Engine: 5.1L TPI, 5.0L TPI
Transmission: 700R4, M5
Axle/Gears: Sag 3.73, B&W 3.45
a couple of things: Ok, I can't seem find the post you are referring to. Grumpy, could you post it agin for me.

I want to run a duel snorkel, and since there is not alot of room in front of the Throttlebody, bla bla bla, see where I am going...


I see you already replied...

John


[This message has been edited by okfoz (edited July 09, 2001).]
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Old Jul 11, 2001 | 07:09 AM
  #5  
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From: In reality
Car: An Ol Buick
Engine: Vsick
Transmission: Janis Tranny Yank Converter
<font face="Verdana, Arial" size="2">Originally posted by okfoz:
a couple of things: Ok, I can't seem find the post you are referring to. Grumpy, could you post it agin for me.
I want to run a duel snorkel, and since there is not alot of room in front of the Throttlebody, bla bla bla, see where I am going...
</font>
<bob@bailey-eng.com>

He was working on a web page dunno if done yet.
Dual snorkel TPI?.
For every 1% reduction in intake tract resistance you can expect a 2% HP gain. Might look at:
http://www.gnttype.org/techarea/engi...relocate3.html

Note 4" intake tract and how short it is. With something like that then you can worry about runners, plenum volume, and then tuning

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Old Jul 11, 2001 | 09:05 AM
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From: Doghouse ······································ Car: 1989 Formula 350 Vert Engine: 350 L98 Transmission: 700R4 Axle/Gears: B&W 3.27
Car: 87 Formula T-Top, 87 Formula HT
Engine: 5.1L TPI, 5.0L TPI
Transmission: 700R4, M5
Axle/Gears: Sag 3.73, B&W 3.45
I have read the article, I have a question now...

Was the GN MAF a 5 wire originally???, I notice that you are using a 3 wire now. I have read where people can buy a conversion to compensate for the Burn off valve.
Where can I get one of those, or should I figure out which 2 wires control the burn off and measure the resistance. Get a resistor of the same value to fool te ECM and go from there?

John
Joh
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