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Thanks I'll get some updated runs in.
I noticed a change when I switched to the 3.2.
Guess I'll update to 3.4 and use the new config

Thanks....makes sense....better performance thru better compression....

2005 Silverado Z71 4x4 with the L33 5.3. Basically stock with a K&N filter. Main use is towing a 5000lb camper. the run log is towing.
Thanks

I've been messing with this less than 6 months, but just noticed this.
My stock tune read and sent to my tuner, the tunes they sent back, and 3 tunes from the repository are all close in size....

Thanks....I was hoping so.

[QUOTE=5FDP;437854] When you buy HPT you get 8 credits of your choice, so either GM, FORD or DODGE credits which is good for 4 vehicles based on the 2 credits per vehicle that most are. QUOTE]
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Well after some data logging and Them doing some fine tuning, I'm looking forward to hitting the road Thursday with the camping load.
A friend that's drove my truck a few times took it for a spin...

For me its only PCM of NC....
http://www.pcmofnc.com/

I keep losing mine for this same reason.

Well the tune is in and WOW what a difference. Just a short 1/2 mile spin impressed me. Looking forward to getting off work in the morning.
Definitely missing the flat spot from before....
I'm not...

Well I have figured how to save and replay the files. Noticed an increased flat feel about Half throttle cruising and louder after adding the Airaid MIT.
Sure enough its the knock retard kicking in....

I hooked up the scanner for the ride to work, even got on it harder than I normally do a few times....for some reason I cant open the saved datalog ....But did notice the KR graff go red a couple...

YAA-HOO Its here....Got my stock tune saved and sent, data log my drive to work, and pull some TM out of it for the ride home and see how it feels.

LMAO....That was my attempt at humor... kind of like how do you change diesel spark plugs..
I know how to tune with tools, its this converting to using a keyboard that has me...

yes it does, and from what I understand any porting work will hurt the lower end torque. a slight shave on the heads, run 93 octane and roll the distributor back a few degree's...if I can just find...

I'm so sorry....Didn't mention the important stuff. This would be the 5.3 L33 HO engine. think it would benefit from the mildly higher compression?

Hello folks, Brand new to computer tuning and will be needing some help for sure. I purchased the software and email tuning package from a highly recommended GM tuner. (am I allowed to mention their...

No new truck guys in 2 years??? Or is it that I'm way WAY behind in the game :) . I am new here, 2nd post as I found this thread searching for "Towing Tune"
We have a 05 L33 powered ECSB 4X4 for...

Hello, I am Darrin and am a blank slate when it comes to computer tuning. Spent many years fine tuning stuff with screw divers and wrench's but cant do that on many thing anymore. Started researching...