Larger Maf Ends?
Thread Starter
Le Mans Master
Joined: Oct 2001
Posts: 5,577
Likes: 3
From: Southern Maryland Maryland
Larger Maf Ends?
Has anyone installed larger MAF ends and noticed a increase in HP? I am starting to analyze the little systems to see if I can gain a few extra ponies at the wheels. The MAF Ends and TB are my current items I am trying to maximize. Thanks!
:cheers:
:cheers:
Safety Car
Joined: Nov 1999
Posts: 3,891
Likes: 2
From: Houston, TX
Re: Larger Maf Ends? (Phil97SVT)
They are really not bottle necks in the system. I would leave them alone. The ones that are seeing an increase withe TB ends are just leaning their car out by making the car think it is getting less air than it thinks...
Until you get in the large cube, high reving stroker category, I would leave the TB alone also.
Good luck,
Until you get in the large cube, high reving stroker category, I would leave the TB alone also.
Good luck,
Melting Slicks
Joined: Oct 2001
Posts: 2,803
Likes: 0
From: Panama City Beach FL
Re: Larger Maf Ends? (Phil97SVT)
If you are looking for the mods to boost hp without breaking into the motor, then you are limited to mods that make air intake easier and exhausting better. So having said that, check into Blackwing air filter, removing the screen in front of the MAF, LS6 intake, long tube headers and aftermarket exhaust.
Race Director
Joined: Aug 2000
Posts: 14,596
Likes: 0
Re: Larger Maf Ends? (Phil97SVT)
A fellow member said in a previous post that Mark Shaner's TBs are by far the best ones out there. He only charges $139 (with core) so it may be worth a shot. Considering you're pushing a lot more power at the wheels than stock, I think you would probably see some kind of power increase. His website is http://home.att.net/~m.shaner/wsb/ht...ome.html-.html.
Le Mans Master
Joined: Mar 2001
Posts: 5,738
Likes: 644
From: Lincoln, CA
Re: Larger Maf Ends? (Phil97SVT)
I use the larger MAF ends. My butt FELT a difference between the stock MAF with no screen and the larger MAF ends.
Chris is right though because on warmer days I'd get knock and had to use the MAFT to add back some fuel. It was running lean 5%.
I need to get back to the Dyno to see if the MAFT added or subtracted HP in any way.
Chris is right though because on warmer days I'd get knock and had to use the MAFT to add back some fuel. It was running lean 5%.
I need to get back to the Dyno to see if the MAFT added or subtracted HP in any way.
Thread Starter
Le Mans Master
Joined: Oct 2001
Posts: 5,577
Likes: 3
From: Southern Maryland Maryland
Re: Larger Maf Ends? (luvinc5)
If you are looking for the mods to boost hp without breaking into the motor, then you are limited to mods that make air intake easier and exhausting better. So having said that, check into Blackwing air filter, removing the screen in front of the MAF, LS6 intake, long tube headers and aftermarket exhaust.
Phillip
[Modified by Phil97SVT, 5:46 PM 7/17/2002]
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Le Mans Master
Joined: Jul 2000
Posts: 7,758
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From: Fort Worth Texas
Cruise-In II Veteran
Cruise-In III Veteran
Re: Larger Maf Ends? (Phil97SVT)
With all your mods, I think you could see some peak HP, with a ported polished TB, no MAF screen, and bigger ends. Especailly if you dial it all in with LS1Edit.
[Modified by kewlbrz, 11:51 AM 7/17/2002]
[Modified by kewlbrz, 11:51 AM 7/17/2002]
Pro
Joined: Nov 2001
Posts: 697
Likes: 0
From: Albuquerque NM
Re: Larger Maf Ends? (Phil97SVT)
I removed my screen, cut the dividers, and blended ALL rough edges, including the ridge where the screen was. My LTFT's were 8% lean, so I adjusted the MAF table to compensate for it. Bear in mind, this is a C5 with the straight shot of air from the cleaner. It may not be a big gain in HP, but it's FREE. With a lot of the bolt-ons costing 15 to 50 bucks per HP, What have you got to lose!
Safety Car
Joined: Aug 2000
Posts: 4,154
Likes: 1
From: Murphy TX
Cruise-In II Veteran
Re: Larger Maf Ends? (66ImpalaLT1)
The MAF is a calibrated device. In your case I would pick up an 02 LS6 maf and use put in the 02 LS6 MAF table in your pcm with ls1edit.
I don't know how precisely or accurately calibrated the stock set up is, but it's got to be better than a random combination of MAF ends and sensor. I won't even get into the GMS piece... :rolleyes:
I believe you will need to resample the xfer function for the later MAF... I believe the '02 table has more points than the '97.
Melting Slicks
Joined: Oct 2001
Posts: 2,803
Likes: 0
From: Panama City Beach FL
Re: Larger Maf Ends? (Phil97SVT)
If you are looking for the mods to boost hp without breaking into the motor, then you are limited to mods that make air intake easier and exhausting better. So having said that, check into Blackwing air filter, removing the screen in front of the MAF, LS6 intake, long tube headers and aftermarket exhaust.
Umm.... :lol: :lol: :lol: :lol: :lol: If you have not checked out my sig, check it out now. I am way past air filters and exhausts. I am looking for the small mods to add hidden HP to a 421rwhp car.
Phillip
[Modified by Phil97SVT, 5:46 PM 7/17/2002]
Umm.... :lol: :lol: :lol: :lol: :lol: If you have not checked out my sig, check it out now. I am way past air filters and exhausts. I am looking for the small mods to add hidden HP to a 421rwhp car.
Phillip
[Modified by Phil97SVT, 5:46 PM 7/17/2002]
Drifting
Joined: Apr 2001
Posts: 1,763
Likes: 24
From: Austin TX
Re: Larger Maf Ends? (ToplessTexan)
I believe you will need to resample the xfer function for the later MAF... I believe the '02 table has more points than the '97.
Eric
Safety Car
Joined: Aug 2000
Posts: 4,154
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From: Murphy TX
Cruise-In II Veteran
Re: Larger Maf Ends? (ToplessTexan)
Maybe I'm not losing my recall after all... Here's a snippet from one of KenK's responses on the ls1edit mailing list in late March regarding the issue of this swap:
List-Archive: <http://www.ls1edit.com/pipermail/ls1edit/>
X-Original-Date: Sun, 24 Mar 2002 16:34:57 -0500
Date: Sun, 24 Mar 2002 16:34:57 -0500
X-Status: N
THe 98 LS1 reads to 11250 Mhz
THe 99 LS1 reads to 12000 Mhz
THe 01 LS1 reads to 12000 Mhz but adds some additional points on the low
end
YOu should be able to create a new MAF file for the 01 MAF, but it
won't be a direct copy. THe low end of the curve has a finer step size,
and lower starting value in the 01.
Ken
Tom Garland wrote:
>
> Ken -- does the table being larger mean that it extends past 12000 or that
> it includes more data points along the way to 12000? With that said, do you
> think it will be possible for me to use LS1Edit to calibrate my 2000 data
> table to work with this larger MAF?
>
> Ken -- the new features list looks great! Keep up the excellent work! I
> for one am anxious to see the gear scaling and hopefully some additional
> idle controls in the future (enrichement, IAC, etc.)
>
> Thanks Again
>
> Tom
>
List-Archive: <http://www.ls1edit.com/pipermail/ls1edit/>
X-Original-Date: Sun, 24 Mar 2002 16:34:57 -0500
Date: Sun, 24 Mar 2002 16:34:57 -0500
X-Status: N
THe 98 LS1 reads to 11250 Mhz
THe 99 LS1 reads to 12000 Mhz
THe 01 LS1 reads to 12000 Mhz but adds some additional points on the low
end
YOu should be able to create a new MAF file for the 01 MAF, but it
won't be a direct copy. THe low end of the curve has a finer step size,
and lower starting value in the 01.
Ken
Tom Garland wrote:
>
> Ken -- does the table being larger mean that it extends past 12000 or that
> it includes more data points along the way to 12000? With that said, do you
> think it will be possible for me to use LS1Edit to calibrate my 2000 data
> table to work with this larger MAF?
>
> Ken -- the new features list looks great! Keep up the excellent work! I
> for one am anxious to see the gear scaling and hopefully some additional
> idle controls in the future (enrichement, IAC, etc.)
>
> Thanks Again
>
> Tom
>