Changing to the 85mm MAF ?
Thread Starter
Instructor
Joined: Feb 2005
Posts: 242
Likes: 2
From: Mims Florida
Changing to the 85mm MAF ?
I have a 99 coupe which I am in the middle of doing some engine work on, and I would like to also change to the 85mm MAF from my stock 78. I have the parts and I am planning to have it tuned when it's back together. Is setting up the tables for a new MAF something a tuner would normally be set up to do in combination with a tune job, or would this be adding too much work and possibly not be able to be tuned. I am not up on whats normally done. Do you have any experience with this change?
Burning Brakes
Joined: Oct 2004
Posts: 931
Likes: 35
From: Rowlett, Texas
Zeke, a stock MAF off a 2001-2004 will definitely need to be recalibrated by a tuner. Yeah, it's additional work for them, and they will likely charge more. I hear the Pace and the SLP units come calibrated for the '97-'00, but don't have any personal experience.
DG
DG
Drifting
Joined: May 2005
Posts: 1,590
Likes: 1
From: Littleton Colorado
It is almost nothing to change the MAF table, IMO if a tuner is going to charge you more I would seriously think about using a different tuner. I did it myself, I have HP Tuners, and it took all of 2 minutes to cut and past the MAF table from a 2001-04 tune into my tune. If they are not going to take the time to setup the new MAF then I would be very concerned that they are not going to take the time to do the tune right in the first place.
Tuners do not normally adjust the MAF table, but I would hope they know where it is and how to cut and paste. It could be different for other software packages, but the table is not huge so even manually entering the info should not take long, its around 100 cells total. This is what it looks like, a single row table.
LS1howto has a write up on it, that is where I got my numbers and I verified the numbers with other tunes from 01-04 Vettes. They are all the same.
http://www.ls1howto.com/index.php?article=25
Tuners do not normally adjust the MAF table, but I would hope they know where it is and how to cut and paste. It could be different for other software packages, but the table is not huge so even manually entering the info should not take long, its around 100 cells total. This is what it looks like, a single row table.
LS1howto has a write up on it, that is where I got my numbers and I verified the numbers with other tunes from 01-04 Vettes. They are all the same.
http://www.ls1howto.com/index.php?article=25
