Westers tune on a Chevy 6.0

robh2 · December 3, 2003

Have any of you had Westers do a 87 octane program for your 6.0? Did it make much of a difference in towing in hills and staying in overdrive without shifting on regular hills and such? I know that going to 91 or 93 will make a big difference but I just cant put that much fuel with the kind of miles I drive. I would rather go diesel than 91-93 and I dont want diesel.

Just looking for a little more oomph up the mountains.

Someone told me a NOX would help in short spurts going up steep inclines, anyone heard of that?

Thanks guys.

1BADHD · December 3, 2003

The 87 Octane tune will give a you a very nice ooomph. But it doesnt compare to the 91-93 octane tune. You will be very happy.

DSZ71 · December 3, 2003

I have to agree, I went with the 91 octane program only because 93 isnt readily available in my neck of the woods. I mean, why worry about $2.50 more once a week at the pumps??

Shaners · December 3, 2003

I have the 87 octane tune, but I think the timing is alittle too advanced for the fuel available around here, so I run 89 and the truck runs sweet!!!

JimWilson · December 4, 2003

My 87 tuning has helped in all aspects of performance.

Red2500HD · December 4, 2003

Just curious....does anyone have any figures to back up their claims??

Also, what was the price of the two items indicated?

Shaners · December 4, 2003

Just curious....does anyone have any figures to back up their claims??

Also, what was the price of the two items indicated?

Someone did some 0-60 runs on here and posted their times with the stock PCM and the Westers Garage PCM. I don't remember who it was, but the numbers pretty much shaved close to a second off their run.

The "seat of the pants" won't notice anything less than a 10 HP gain, and my dyno is telling me that I gained more than that!!!

I also picked up close to 1 MPG.

The truck runs out better and the upshifts and downshifts are great!!!

robh2 · December 4, 2003

Anyone have the 89-91 tune and run 87 sometimes? How does it sound and run? Can you tune it for 91 but have a programmer to change the octane when you want it to really go?

Thanks and sorry for all the questions.

Robert

1BADHD · December 4, 2003

Just curious....does anyone have any figures to back up their claims??

Also, what was the price of the two items indicated?

Someone did some 0-60 runs on here and posted their times with the stock PCM and the Westers Garage PCM. I don't remember who it was, but the numbers pretty much shaved close to a second off their run.

The "seat of the pants" won't notice anything less than a 10 HP gain, and my dyno is telling me that I gained more than that!!!

I also picked up close to 1 MPG.

The truck runs out better and the upshifts and downshifts are great!!!

That was me. I dont think anyone has actual dyno numbers. But my ass-o-meter is pretty accurate. Anyway, here is my thread of when I ran my own little test. These were with a Predator tune and the Westers. NOT THE STOCK TUNE. So if you go from stock to the Westers. I bet your grin will be from ear to ear for days.

http://www.gm-trucks.com/forums/index.php?...showtopic=22034

If you have any other specfic questions, let me know.

Chevyfreek · December 4, 2003

I agree with everyone here. My 6.0L runs better and stronger than in ever did. Plus I gained about 1-2mpg depending on how much go pedal I give her. You will be smiling for sure...

Red2500HD · December 4, 2003

Thanks, guys. I know my question was a little argumentative, but I have heard people in the past state that they gained 50hp from adding roach poison to the gas, or other such garbage. It sounds like this may be worth the $$.

I mean, if you can't trust a Chevy driver, who can you trust.

2003yukonxl2500 · December 9, 2003

I just put in an 87 octane tune in my 6.0 I've had it in for about 10 days and will agree the truck runs smoother and a little quicker. In a 5500lb. Yukon XL it takes a lot of added power to see a difference. I haven't noticed the improved gas mileage claimed by others. Maybe more time will help.

If I did it again, I would probably go for a higher tune to see a bigger difference.

-Jeff

JimWilson · December 11, 2003

Unfortunately, not everyone sees additional mileage. I'm one of those people too.

CdnChevy · December 11, 2003

Stupid question maybe but is there a website that explains this and what is done? Is it a computer chip upgrade of sorts?

THanks!

Butch 02 Denali · December 11, 2003

Just curious....does anyone have any figures to back up their claims??

My Sierra Denali with a 6.0 ran 16.1 stock, with only a drop in K&N, installed a Wester's 87 octane tune and ran a 15.7. Power is addictive and I ordered the 93 octane tune. With no other changes, just the same K&N drop in I ran a 15.3. With both these tunes I got a 1-2 increase in my around town mileage and as much as 4 mpg on the highway. Shifting and Low end torque is much improved and the truck feels like I put a big block in it!

http://westers_garage.eidnet.org/index2.htm

Butch 02 Sierra Denali