As the title says I am searching for the factory tune for the 8.1 I am about to swap into my Express. I would love to have the Hypertech version too, but will take what I can find.
As the title says I am searching for the factory tune for the 8.1 I am about to swap into my Express. I would love to have the Hypertech version too, but will take what I can find.
Maybe we can dig up a valid vin??
I see a coupe of the older Hypertech programmers on Ebay for about $100 that list for 8.1.
http://www.ebay.com/itm/Hypertech-Po...hWWPED&vxp=mtr
http://www.ebay.com/itm/NEW-HYPERTEC...9V6Mi3&vxp=mtr
Have you ever looked at a hypertech tune? They are a joke. Not worth your time.
Whats the reasoning for the 8.1 express? Its going to be an even more de-rated tune than a truck. None of them were drive by cable. Just curious as to why the van.
Also agree the hypertech stuff is a joke. I keep a few TBI proms around of theirs for when I need a good laugh.
I spent alot of time on the dyno when I had my 206/210 cam in my L31 only to find out that the Hypertech spark table was within 1-2° of perfect for the L31 in my Express. I also ran the Hypertech in my Titan and that truck put down 300 RWHP on a Mustang dyno and 390 RWTQ with only the Tune, Airaid CAI, and Magnaflow muffler swap.
Its also going in an Express so makes sense to me to have the operating system match the vehicle.
The tune I used in the 99 L31 Suburban was also Hypertech based.
When I traded off the Titan, I put the Hypertech on my Mom's Nissan Pathfinder with the 4.0L. It SCOOTS along very well.
Doesn't matter with half meg ecm. There is no real difference between trucks and vans, especially by the time you throw a canned tune on there.Quote:
Originally Posted by Fast355
Now you get into 1 meg and that's a very different story until the vans went DBW.
There is a HUGE difference between the trucks and vans. The trucks run the Allison 1000 with a seperate TCM and the vans run a 4L80E.Quote:
Originally Posted by Skinny Pedal
Not all trucks. There is also the suburban tunes. Or you can make a van file if you really want one with a few simple segment swaps.
Here nor there though. Was just wondering why the needle was so important when you could use the hay.
Oh I forget about them. Avalanche was made with an 8.1 too IIRC.Quote:
Originally Posted by Skinny Pedal
Yup. DO you have a vin for an express 8.1 by chance? If you do I'll get you a stock tune.
This should be a valid VIN for an '02 Express Cutaway with 8.1: 1GBJG31G721191799
Someone with access to TIS might be able to get a calibration for you.
http://chevroletforum.com/forum/vind...JG31G721191799
After looking at the above info, I'm not sure you'll like the 0 mpg highway / city ratings. ;)
Awesome. Give me a few and I'll get it.
I have someone getting one for me. It was a factory 8.1/4L80E/4.10 gear/10,000 lbs tow package tune which is what I will be using.Quote:
Originally Posted by Skinny Pedal
What format do you want it in?
I am using HPT. Can use it in .BIN or .HPT.Quote:
Originally Posted by Skinny Pedal
Vin I have is 1GAHG39G811159594