Need a MAF table for a ported/descreened MAF. Not 85mm
01-27-2005, 10:37 PM
#1
Need a MAF table for a ported/descreened MAF. Not 85mm I need some help. I'm looking for a MAF table for a ported/descreened MAF. This is not for an 85mm unit. It is the standard diameter unit used in 97-00 C5's and ALL 98-02 LS1 F-bodies.
Please let me know if you have one...
Thanks
Steve.
Please let me know if you have one...
Thanks
Steve.
01-28-2005, 09:24 AM
#2
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Problem is once you port it, you -aren't- the standard
diameter anymore. That's where the problem comes in.
Might get lucky if you have used MAF ends that are a
common size and somebody went and tweaked the table
up. But if you went buck-wild with the die grinder and
made a unique piece then you'll have to back into the
MAF table by looking at higher-RPM mixture error (and
hope you haven't stacked other mixture-bending mods
that would obscure the result).
diameter anymore. That's where the problem comes in.
Might get lucky if you have used MAF ends that are a
common size and somebody went and tweaked the table
up. But if you went buck-wild with the die grinder and
made a unique piece then you'll have to back into the
MAF table by looking at higher-RPM mixture error (and
hope you haven't stacked other mixture-bending mods
that would obscure the result).
01-28-2005, 09:47 AM
#3
Yeah I understand that, I was just trying to get a somewhat of a baseline. Maybe something someone else has done, or the ends like you said. It is not a home ported unit. It was one done by West Coast Corvette. Not a hacked up piece, done right.
http://www.westcoastcorvette.com/sho...tail.cfm?id=81 is the unit with a pic of how it looks.
Hmm.. just trying to get a baseline. Don't know if maybe I should just scale the table or soemthing to try and compensate for it.
Any help would be greatly appreciated.
Thanks
Steve
http://www.westcoastcorvette.com/sho...tail.cfm?id=81 is the unit with a pic of how it looks.
Hmm.. just trying to get a baseline. Don't know if maybe I should just scale the table or soemthing to try and compensate for it.
Any help would be greatly appreciated.
Thanks
Steve
01-28-2005, 01:28 PM
#4
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Do you have any other mods that would affect the mixture?
If no then the right answer might just be to hook up a
wideband unit and look at actual vs commanded AFR,
attribute all error to the MAF, and scale the table by that.
I think while you're at it, might as well start from the
Holden table since it has a more sensible top end.
If no then the right answer might just be to hook up a
wideband unit and look at actual vs commanded AFR,
attribute all error to the MAF, and scale the table by that.
I think while you're at it, might as well start from the
Holden table since it has a more sensible top end.
01-28-2005, 02:02 PM
#5
Car has longtubes, offroad X. K&N Dual cone setup, a Ported TB from the same place as the MAF, all boltons... I know it's a lil bit off right now.
I'm going to try and do a good scan later today, but we shall see if I get the time.
I've also read a decent amount into tuning it without the MAF altogether...
I was reading something about the Holden table as well... not sure where I can locate it online..
Thanks for the help
Steve
I'm going to try and do a good scan later today, but we shall see if I get the time.
I've also read a decent amount into tuning it without the MAF altogether...
I was reading something about the Holden table as well... not sure where I can locate it online..
Thanks for the help
Steve
