Whats the purpose of deleting the MAF
In comparison every 97-2007 LS1 pcm had a 512g/sec limit
Scaling to get around the MAF sensor limitation in the pcm is no problem if you know what your doing, I proved that 5+ years ago to get at least the equilivent of 1024 g/sec on a "junk" 98 pcm.
The 2003-4 cobra pcm is limited to 63.9 #/minute, but yet they run 800-1000 rwhp on maf without issue due to aftermarket MAF support to get the extra range.
Ryan
The 2003-4 cobra pcm is limited to 63.9 #/minute, but yet they run 800-1000 rwhp on maf without issue due to aftermarket MAF support to get the extra range.
Ryan
TECH Enthusiast
Joined: Feb 2008
Posts: 503
Likes: 1
From: Ventura, Ca
Scaling has been done alot longer than that even with old SD tunes. If you want proof look at the thirdgen site under Super AUJP. The hackers there overcame a BPW limit that was hardcoded into the system which caused problems with bigger cubed motors. Don't give your MAF up for the MAF limit excuse.
I'm sure its been done before that as well, I also had tested a voltage to frequency adapter to run a Ford BA2400/2800 series MAF on my car to get around the "limit" of the GM maf. Now with the ABACO mafs available to anybody as well as the card/slot style mafs, you should get able to get around the limit easily.
Ryan
Ryan
12 Second Club
Joined: Dec 2008
Posts: 281
Likes: 0
From: A small town, MS
Correct me if I'm wrong but SD tunes do not account for variations in ambient temperature or elevation do they? So a car tuned SD on the gulf coast in 80 weather won't run as good elsewhere in say 50 degree weather, or even in the same area at various temps. MAF takes into account ambient temperatures and barometric readings and adjusts long term fuel trims. That's what I've always been lead to believe anyway.
I've heard mixed reviews as well. Most people do not have the ability to build a voltage to frequency converter to run a ford maf, but the LS3 slot style mafs get some great range in 4"+ tubes.
Ryan
Ryan
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I've not been tuning long but the MAF does not read "ambient temperatures and barometric readings" .
Those are read by the MAP / Baro sensor and IAT sensor
The MAF is just a sensor for AIR VOLUME .. ie G/Sec...
A SD tune WILL compensate for both .
Now, some of this hardware on newer engines, might be different.
Those are read by the MAP / Baro sensor and IAT sensor
The MAF is just a sensor for AIR VOLUME .. ie G/Sec...
A SD tune WILL compensate for both .
Now, some of this hardware on newer engines, might be different.
I've not been tuning long but the MAF does not read "ambient temperatures and barometric readings" .
Those are read by the MAP / Baro sensor and IAT sensor
The MAF is just a sensor for AIR VOLUME .. ie G/Sec...
A SD tune WILL compensate for both .
Now, some of this hardware on newer engines, might be different.
Those are read by the MAP / Baro sensor and IAT sensor
The MAF is just a sensor for AIR VOLUME .. ie G/Sec...
A SD tune WILL compensate for both .
Now, some of this hardware on newer engines, might be different.
12 Second Club
Joined: Dec 2008
Posts: 281
Likes: 0
From: A small town, MS
I've not been tuning long but the MAF does not read "ambient temperatures and barometric readings" . Those are read by the MAP / Baro sensor and IAT sensor The MAF is just a sensor for AIR VOLUME .. ie G/Sec... A SD tune WILL compensate for both . Now, some of this hardware on newer engines, might be different.
TECH Enthusiast
Joined: Nov 2006
Posts: 620
Likes: 0
From: Katherine N.T Australia
Hell the highest powered LS1's released here that were SD from FACTORY.
We, meaning hptuners, also give the option of 2 bar, 2.5 bar & 3 bar custom operating systems which extend the VE table keeping the same resolution as stock in most cases, add a Boost VE table, real time tuning in most cases. etc. something the stock operating system cannot support. If you feel you can tune around the limits of the stock operating systems nobody forces you to upgrade to a custom operating system. We just try to make it easier for the community to tune their vehicles.
-Bill
You wouldn't, you are more than welcome to use the stock 1 bar operating system with.
We, meaning hptuners, also give the option of 2 bar, 2.5 bar & 3 bar custom operating systems which extend the VE table keeping the same resolution as stock in most cases, add a Boost VE table, real time tuning in most cases. etc. something the stock operating system cannot support. If you feel you can tune around the limits of the stock operating systems nobody forces you to upgrade to a custom operating system. We just try to make it easier for the community to tune their vehicles.
-Bill
We, meaning hptuners, also give the option of 2 bar, 2.5 bar & 3 bar custom operating systems which extend the VE table keeping the same resolution as stock in most cases, add a Boost VE table, real time tuning in most cases. etc. something the stock operating system cannot support. If you feel you can tune around the limits of the stock operating systems nobody forces you to upgrade to a custom operating system. We just try to make it easier for the community to tune their vehicles.
-Bill
and
Thanks for the 2 bar info. From your post I gather HPT has the copywrights to the 2.0, 2.5, and the 3.0 bar SD Cals?
That means you can not post a 2.0, 2.5, and the 3.0 bar SD Cal as a bin?
Or translated to Ascii "Copyright Ford Motor Co. 2008" The GM does not have this in the image read from a warren or e40/38 controller, but it could still be in the pcm somewhere. Shelby does put his name in the image for the series 1 controller as well.
Ryan
436F7079726967687420466F7264204D6F746F7220436F2E20 32303038
Or translated to Ascii "Copyright Ford Motor Co. 2008" The GM does not have this in the image read from a warren or e40/38 controller, but it could still be in the pcm somewhere. Shelby does put his name in the image for the series 1 controller as well.
Ryan
Or translated to Ascii "Copyright Ford Motor Co. 2008" The GM does not have this in the image read from a warren or e40/38 controller, but it could still be in the pcm somewhere. Shelby does put his name in the image for the series 1 controller as well.
Ryan
You are misreading that line.
Shelby didn't build the calibration. Shelby wasn't given CalTools to build or even alter that program. It came from Warren. I have had that calibration for years. I had information before most tuning companies did for the S1 setup. I worked next door to 1 of the investors (Mike Juneau) and I have talk to him. I have seen several S1's at his dealership.
I guess I could take a 2 bar SD tune and change the OSID to a stock OSID# and the VCM ID in a Hex Editor to the bin file.