Forum: Tuning

I know that a 411 can control electric fans based on engine temperature. Can it also control an output based on IAT's? I'm considering water meth...

Its awesome!!!! Finally, this big truck/small engine combo doesnt feel like a turd anymore! I got the 89/91 tune and had 100% torque management...

Doed anyone know what i need to do when changing from an awd trans out of a denali yukon to a 2wd from a c1500. I am putting this in a 98 tahoe and...

I received my Nelson tune for my 2000 GMC yesterday and worked on it from 6-11:30 last night and could not get rid of the PO1631 which is wrong theft...

I bought my 02 sierra a few months ago. Since buying it I had the engine rebuilt to the same specs as before, however I have added catalytic...

I did a 5.3/t56 swap on my truck and am using an fbody sample file but it's using the auto trans. From my understanding I need the m6 file and...

Between these 2 tunes, what would be more power: a single 89 octane tune OR a dual 89-91 octane tune? I have a 91 tune now, if I. Stepped down to a...

First i have a 1999 silverado with 4.8. I want to order a tune. They say the 1999 trucks had a crappy pcm as it was slow. If i order a tuned PCM from...

Had the Crank Position Relearn light come on. I have a Nelson tune and I was wondering if someone with EFI or HP could do the relearn with the PCM...

can someone take a look at my log and hpt file and point me in the right direction? Im new to tuning and have been away from the site for a while. id...

So I always have used NP for my tunes but with the new setup and being so far away from san antonio getting a live tune is pretty much out of the...

it's safe to say that i'm completely stumped as to why my 6.0 runs fine when going straight off the VE tables, but goes stupidly lean as soon as it...

I was going to buy the tried and true innovate lc-1 with a gauge. I have had them in the past and they do the job well. A friend of mine has an PLX...

I'm in the process of finishing up my 4l80e swap but I need a to figure out what to do on the HD file segment? As of right now the 80e trans is...

hey guys, are there any reputable hptuners users in the area? i have a customer there that needs transmission tuning; as you know the tcm is...

I'm in Alabama and I'm getting close to cranking my 89 c1500 with 2008 ly6 with a EPS vvt cam and 4L80e swap Just curious if anyone knows of any...

I have a hp tune on not already. The guy who tuned it has no idea what he is doing. I can't even pull a 14ft empty utility trailer. With out it...

I just received my new PCM in the mail and didn't waste anytime getting it installed. I was super excited since I was told to expect 30 RWHP on 91...

Iv been calling for close to a month and have left messages, any way i can get in contact with them other than there phone?

Does anybody know of a good, reputable tuner in Oklahoma? Truck is a 2000 Silverado ECSB 5.3 bone stock with no plans of modding. Also, if I were to...