[daston]

So I'm going to buy a ECM and have PHP do a rollback, but was wondering about the custom tune they can do as well. I tow a 34 ft fifth wheel, but the truck is my daily driver too. What tune should I do? The reason I want to buy another ecm besides the one that's in the truck is for smog issue's here in cali. Plus the truck is still under full warrenty. The dealer flashed a smog code into my truck and now I have very limited power. The fifth wheel is about 10K in weight.

25hp Extremely Heavy, Tow 40hp Heavy Tow, 65hp Moderate Tow, 80hp Light Tow, 65hp Daily Driver ,80hp Daily Driver ,65hp Performance, 80hp Performance.

Any advise?

[Quickerthanu]

Hi Datson,

If you just wanting one tune & still be able to tow your 5er, I'd recommend the 40hp Heavy Tow since your in the 10k ballpark when towing. Anything with more HP your exhaust gas temps may get a bit high.


Just my .02

[Jeremy]

sound advice....

[daston]

Thanks for the replies,

Does anyone know what the weight limits are on the various tunes below? For instance the 40hp heavy tow?


25hp Extremely Heavy, Tow 40hp Heavy Tow, 65hp Moderate Tow, 80hp Light Tow, 65hp Daily Driver ,80hp Daily Driver ,65hp Performance, 80hp Performance.

[MO05SD]

This is a copy & paste from PHP website:

CALIBRATION DESCRIPTION and IMPORTANT INFORMATION
Modified Stock For heavy modifications -- useful for emissions or diagnostic purposes
25hp Extremely Heavy Tow 12,500+ pounds
40hp Heavy Tow 10,000 - 12,500 pounds
65hp Moderate Tow 7,500 - 10,000 pounds
80hp Light Tow Up to 7,500 pounds
65hp Daily Driver Good for all-around daily driving and economy
80hp Daily Driver
65hp Performance A little more aggressive than a Daily Driver while still maintaining manageable smoke output
80hp Performance
100hp Performance
100hp Race Play time! Offers a more aggressive fuel curve for improved low RPM response and top end power
120hp Race
140hp Extreme This is as big as it gets! (On stock injectors, anyway)
We do NOT offer the 140hp calibration for late model (2002-2003)
trucks with Powdered Metal Rods (PMRs)
Teen Driver™ 65mph Locks the speed limiter at 65mph
Teen Driver™ 75mph Locks the speed limiter at 75 mph

[daston]

Thanks for the info.