tune maf or speed density tune????
03-07-2006, 07:33 PM
#1
Staging Lane
Thread Starter
Join Date: Mar 2006
Location: rocky mount, va
Posts: 57
Likes: 0
Received 0 Likes
on
0 Posts
tune maf or speed density tune???? i have a 00 z28 w/ a ported tb and ported maf. the car surges at low rpms and doesnt run well w/ maf hooked up. i have hp tuners and want to tune the car. should i tune the car to run better w/ the ported maf, or should i ditch the maf and just speed density tune the car? my othe rmods ar cold/ram air and flow master hooked uo to some qtp headers and qtp y pipe w/ cut outs and w/o cats .
03-07-2006, 07:43 PM
#2
Moderator
iTrader: (11)
Join Date: Mar 2002
Location: East Central Florida
Posts: 12,604
Likes: 0
Received 6 Likes
on
6 Posts
Ported MAF is the root of your troubles. A stocker would be
more suitable. You can do a lot of tuning to fix it, a lot of
tuning to ditch it, or just a little tuning against a more sane
base and be happy. If I were you I'd acquire a stock MAF
and work the car over until it's otherwise tight, without that
skew factor. Then decide whether it's worth the work to use
a ported MAF, after that (or just descreen). Too many
mystery variables at once makes a messy tuning exercise.
more suitable. You can do a lot of tuning to fix it, a lot of
tuning to ditch it, or just a little tuning against a more sane
base and be happy. If I were you I'd acquire a stock MAF
and work the car over until it's otherwise tight, without that
skew factor. Then decide whether it's worth the work to use
a ported MAF, after that (or just descreen). Too many
mystery variables at once makes a messy tuning exercise.
03-07-2006, 08:15 PM
#3
Staging Lane
Thread Starter
Join Date: Mar 2006
Location: rocky mount, va
Posts: 57
Likes: 0
Received 0 Likes
on
0 Posts
so is it gonna be difficult to tune for this maf? the maf was cut and smoothed and also it was descreened. it is extreemly large. i used a generic obdII scanner to read my maf values for ltft and at some points it got to +13 so i cut it off b/c that seemed too lean for the engine. a replacement maf is out of the question due to money issues at the momment. i just need to tune my car to run again.
