Forum: Tuning

Ok so here is a random question. Not sure if anybody would even know about this but I figured if anyone, Allen would have some kind of input on the...

Need Houston area tuner

, LM7 3.905 bore Aries forged pistons Eagle steel 383 crank and rods balanced , GM Hot cam and Z06 springs ! Using a Jet DST just thought I'd ask...

Hey guys I swaped a 2004 ls5.3 and a 2005 4l65e into a 1998 GMC Sierra 4x4 with the Lextech pin out. My speedo, alternator, and oil pressure gauges...

I'm swapping a 5.3l/4l80e into a '72 C10. Currently I have the 2005 VIN "Z" L59 5.3l/Harness/Computer etc, which is built to control the 4l60e. I...

Would it be possible to use a 0411 as a standalone tcm? Aftermarket TCM's can be spendy but an 0411 can be had for about $50. The 6.5 diesel died on...

Hi everyone! I am currently doing a 6.0L swap and I am wondering if I should run a wideband 02 sensor on a naturally aspirated engine. I am new to...

Anyone have any clue how bad these are I'm tuning it pretty soon and if they are bad I will send back just need a opinion please help

I cant find this anywhere. I am using HPTUNERS and have the setup in the title. I cant figure this out. I know it can be done with HPTuners. ...

Allen, I ended up swapping in a 2004 lq4 into my truck because the 4.8 had a bad castech head on it, so i had yall do a retune to run the 6.0. Well,...

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...