Performance MAF?
Safety Car
Joined: Sep 2000
Posts: 3,524
Likes: 4
From: Hinckley Ohio
Originally Posted by ClarenceT
[url]http:// Quick, let me make a kit. $59.99 and typically gains 12 rwhp*. Order yours today!
*Actual gains may vary.. a lot.
*Actual gains may vary.. a lot.
Burning Brakes
Joined: Jul 2003
Posts: 922
Likes: 1
From: Brisbane Queensland, Australia
[QUOTE=ClarenceT]
As for descreening your maf, read this:
http://www.gmtips.com/3rd-degree/dox...maf-screen.htm
EXCELLENT Article AND website!
As for descreening your maf, read this:
http://www.gmtips.com/3rd-degree/dox...maf-screen.htm
EXCELLENT Article AND website!
Safety Car
Joined: Sep 2000
Posts: 3,524
Likes: 4
From: Hinckley Ohio
[QUOTE=smacko]
This website is reference to a 85 or 85 5.0 liter firebird.......
While much of the information is applicable to say my 96 LT4 not all of it is. Regarding the MAF screen, what is says is correct regarding the screen, BUT on Firebirds the air comes around a corner into the MAF whereas on LT1/4 Corvette the air is coming straight into it.....so the screen is necessary on the Firebird, but more of a safeguard on the Corvette......
BTW I was a little confused by the website name....,,name implies that this was an "official" GM site, it is not. It is one individual's experience with 85/86 firebirds....
http://www.gmtips.com/3rd-degree/dox/tips/tips.htm
Plus check his homepage....
Originally Posted by ClarenceT
As for descreening your maf, read this:
http://www.gmtips.com/3rd-degree/dox...maf-screen.htm
EXCELLENT Article AND website!
http://www.gmtips.com/3rd-degree/dox...maf-screen.htm
EXCELLENT Article AND website!
While much of the information is applicable to say my 96 LT4 not all of it is. Regarding the MAF screen, what is says is correct regarding the screen, BUT on Firebirds the air comes around a corner into the MAF whereas on LT1/4 Corvette the air is coming straight into it.....so the screen is necessary on the Firebird, but more of a safeguard on the Corvette......
BTW I was a little confused by the website name....,,name implies that this was an "official" GM site, it is not. It is one individual's experience with 85/86 firebirds....
http://www.gmtips.com/3rd-degree/dox/tips/tips.htm
Plus check his homepage....
Burning Brakes
Joined: Jul 2003
Posts: 922
Likes: 1
From: Brisbane Queensland, Australia
Originally Posted by LT4BUD
This website is reference to a 85 or 85 5.0 liter firebird.......
While much of the information is applicable to say my 96 LT4 not all of it is. Regarding the MAF screen, what is says is correct regarding the screen, BUT on Firebirds the air comes around a corner into the MAF whereas on LT1/4 Corvette the air is coming straight into it.....so the screen is necessary on the Firebird, but more of a safeguard on the Corvette......
BTW I was a little confused by the website name....,,name implies that this was an "official" GM site, it is not. It is one individual's experience with 85/86 firebirds....
http://www.gmtips.com/3rd-degree/dox/tips/tips.htm
Plus check his homepage....
While much of the information is applicable to say my 96 LT4 not all of it is. Regarding the MAF screen, what is says is correct regarding the screen, BUT on Firebirds the air comes around a corner into the MAF whereas on LT1/4 Corvette the air is coming straight into it.....so the screen is necessary on the Firebird, but more of a safeguard on the Corvette......
BTW I was a little confused by the website name....,,name implies that this was an "official" GM site, it is not. It is one individual's experience with 85/86 firebirds....
http://www.gmtips.com/3rd-degree/dox/tips/tips.htm
Plus check his homepage....
Intermediate
Joined: Oct 2004
Posts: 43
Likes: 0
From: Pittsburgh Pa
Originally Posted by kwik_ta
yeah... you can save yourself some $$$ by porting and de-screening yours
Safety Car
Joined: Sep 2000
Posts: 3,524
Likes: 4
From: Hinckley Ohio
Originally Posted by LT4BUD
Can't arque with that kind of success.......
I am looking at the larger body MAF....82mm....since the cross sectional area of a single 82mm opening matches almost exactly the cross sectional area of twin 58mm throttle body...and I did already go with the 58mm throttle body
If you upgrade to 58mm throttle body without upgrading the MAF it seems like you have created a mismatched system of sorts?????
..
http://www.madvet.com/shop?frame=1.230.677
Update: I just got it......smallest diameter is 80mm plus I am not sure about the "air foils" in the center.....
I am looking at the larger body MAF....82mm....since the cross sectional area of a single 82mm opening matches almost exactly the cross sectional area of twin 58mm throttle body...and I did already go with the 58mm throttle body
If you upgrade to 58mm throttle body without upgrading the MAF it seems like you have created a mismatched system of sorts?????
..
http://www.madvet.com/shop?frame=1.230.677
Update: I just got it......smallest diameter is 80mm plus I am not sure about the "air foils" in the center.....
Well another update!!!
I just remembered I had the MAF screen that I have removed down in the basement. Guess what????? It is exactly the same size as the new housing I bought.....so my concept that this housing was a larger diameter was apparently wrong......can't remember if the OEM housing necks down more than this new one or not......so I didn't get a bigger housing like I thought.....
BTW I think GMtips is a good site BUT it is related to 85/86 5.0 liter Firebird ,not a 96 LT4 Corvette....
Drifting
Joined: Aug 2004
Posts: 1,400
Likes: 0
From: Oceansaide CA
Originally Posted by LT4BUD
BTW I think GMtips is a good site BUT it is related to 85/86 5.0 liter Firebird ,not a 96 LT4 Corvette....
As for the bent intake, seems like having a straight one doesn't really change much. Do a search, you'll see a lot of this going on:
Originally Posted by BigTodd
OK, The spark plug wires are new accell 8.5mm, NGK TR55 plugs new, Fuel Injectors new, (Ford Motorsport) Cap rotor, and coil new. As you can see I have been doing a face lift on the engine. It had a bad hesitation problem that boiled down to the ECM not reading the TPS correctly (It would max out at 1.8 v when the TPS was giving 4.7 volts). I have also removed the screens and cleaned the MAF with non residue contact cleaner (Did not help)..
The car ran great for about 2 months then the code 33 started out of the blue, I do have 89,000+ miles on her, so I thought could be the relays, or the MAF.
I will check for vacume leaks, but how drastic would they have to be to set the code?
Does anyone have the wiring diagram of the 88 MAF circuit to trace the voltages, wiring and ground.
What is the best price I can get for scan software for my laptop, It turbo link a good software to use?? Great help so far, please keep the suggestion coming...
The car ran great for about 2 months then the code 33 started out of the blue, I do have 89,000+ miles on her, so I thought could be the relays, or the MAF.
I will check for vacume leaks, but how drastic would they have to be to set the code?
Does anyone have the wiring diagram of the 88 MAF circuit to trace the voltages, wiring and ground.
What is the best price I can get for scan software for my laptop, It turbo link a good software to use?? Great help so far, please keep the suggestion coming...
Point being, unless you're feeding two LT1s through that MAF, you're fine. Your heads won't flow anything near what the MAF can, and last I checked pistons only fire one at a time...
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Burning Brakes
Joined: Dec 2004
Posts: 825
Likes: 0
From: Hanging out back with the dark horses. Wa.
I bought a Granatelli adjustible MAS for over 300.00 and guess what? It had a front screen on it. What does this tell us?
I traded my 300.00 MAS to redl98 for 2 stock MAS. It would not match up with my hypertech.
Good luck~ Jeff
I traded my 300.00 MAS to redl98 for 2 stock MAS. It would not match up with my hypertech.
Good luck~ Jeff
Melting Slicks
Joined: Sep 2003
Posts: 3,031
Likes: 74
From: If you don't weigh in you don't wrestle Road America
Do yourself a favor and save your money the stock MAF can flow more than enough air. I have the Granitelli unit and all it does is make tuning the car more of a pain in the a$$. You are much better off just descreening yours. You'll be happy you did, actually if anyone wants to try out the Granitelli unit I'd trade you for the stock one just pay the shipping. If it doesn't work I'll give you yours back. (has to be 94-96 though.)
