I'm finally ready to do some mods to my truck since the warranty is up. I would like to know if anybody out there has had problems running any tuner chips since we have different gasoline out here.

 

I have know problems with my chip. The only thing I told him was the highest octane I have around here is 91 octane.
See Ya, Wheeler

 

I have two tuner's chips with no problems as of yet with my mods...see sig.

 

Have either of you guys dynoed your trucks before or after your mods? I'm interested in power figures along with seat of the pants feel.

 

I actually dynoed my truck at Swanson Performance last Friday. SAE corrected with 383 RWHP with 419 ft/lbs of torque with the dyno tune on a street program for 91 octane. I did not dyno the truck with the race program which is burned for 103 octane. I also had Danny dyno the JL Diablo Street Chip and I only had 323 RWHP and 364 ft/lbs of torque. I felt more power overall with the custom chip, which happened to be tuned with an 11.3/1 air fuel ratio. No detenation in my future .

Doug

 

Another Cali guy here with no problems on my chips.

p.s. Hey guys, don't forget about the April 21'st event at Carlsbad!! My post in on the 2nd page I think.

 

Hey Marcus...I'm heading down to C-Bad this Saturday to try out the new chip and if I do better than last time, you'll probably see me there!

Doug

 

I've been running a Swanson custom chip for 30,000 + miles. Custom dyno tuning is the ONLY safe way to make maximum hp.

My truck made 385 Hp on Danny's dyno with a 2lb pulley, ProM mass air and a Swanson custom chip. All of this on 91 octane winter gas.

I had a littlew detonation, but some injector cleaner cleared it right up. My truck has 47K miles on it now, and has been as reliable as a rock.

 

I've had 3 tuners chips, all off the shelf, and all had to be sent back and forth for reburns to clear up detonation.

In hindsight I should have opted for a custom tune to begin with. Would have been cheaper

 

So it seems like custom tuning is the way to go. I guess the only guys around are Swanson. Does anybody know of any reputable tuners in the San Francisco Bay Area?