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TB I6 what would be the benifit if towing [Archive] - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum

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View Full Version : TB I6 what would be the benifit if towing


The Black Pearl
10-22-2006, 01:42 AM
I was wondering what would be the benefit if I got your item. I tow a 4000lbs trailer in the summer.

ScarabEpic22
10-22-2006, 01:40 PM
I cant speak for the PCM4less tune about towing, but I towed all summer on an inferior tune (my custom concoction that had messy shifts) and there was so much more power down low when starting off. I was impressed, and I didnt have to really push the pedal down when starting off, and on the hwy a little gas was enough to force a downshift to 3rd and then pass anything and everything.

The one thing I did in my tune was make it so my TB wouldnt downshift into 2nd going up steep hills as 4000rpm with a loud exhaust under 4100lbs of load is pretty loud and annoying after the first minute or so.

Also, I saw about 11.5-12mpg towing with a tune vs. 11mpg on the stock tune. Not much of an increase, but considering that was going 65-70mph Im pretty happy with it. No other engine mods besides a tune to get the extra mpg (same airfilter, TBS, syn oil).