My first thoughts

[v8Stroker]

So I just got around to putting Eric's Xtreme Race on my truck and holy ****. I thought Banks was good...

I do have some questions and/or concerns.

The tranny seems to be a ton more aggressive as in shifting a lot harder. Is this normal? I mean I did a little brake boost tonight and let off of her and and she was shifting great at 4200 rpm from first to all the other gears but when under a somewhat mild acceleration it seems like it slammed into them, not to hard but hard enough to get your attention.

That being said with this tune... Am I going to blow my truck up? I mean holy sh*t! I was rippin through the 35's easy as pie!

Also, I've been told that when you run the Xtreme race tune you see a ton better mileage? I was getting a HAND calculated low 21 on a long highway drive.

[californiadreamin]

You've got studs....should be okay with idp as long as you don't get too carried away

[westcoaststrokin]

The shift is normal. I had to have Eric make mine firmer because that is the way I like it.

[Lilpooh]

V8stroker, after you loaded the tune, did you give the trans time to relearn?? I find with all my tunes, after the trans has relearned, the shift firmness gets better.

[TooMuch03]

Originally Posted by westcoaststrokin

make mine firmer because that is the way I like it.

Thats what she said
Sorry, couldn't help myself. Definitely give the tranny a chance to relearn before you beat on it too hard. It is supposed to shift firm because that is better for the transmission and more efficient. I would say that your truck is better off running custom tunes than with the Banks! Enjoy it man!

[v8Stroker]

Originally Posted by TooMuch03

Thats what she said
Sorry, couldn't help myself. Definitely give the tranny a chance to relearn before you beat on it too hard. It is supposed to shift firm because that is better for the transmission and more efficient. I would say that your truck is better off running custom tunes than with the Banks! Enjoy it man!

So your saying the harsher shifts are better for the tranny because it's not really slipping into the next gear? Slipping meaning a smooth shift.

Another question for you all. I tow a snowmobile trailer that probably totals out to around 3500 pounds fully loaded with the sleds on it. Is it safe to run this tune? Or should I switch to a tow tune? At what towing weight should I begin to switch tunes?

[TooMuch03]

Yes, the firmer shifts are better for the transmission because it is not slipping from one gear to the next causing unnecesaary wear on the internals of the tranny. It is also more efficient because less momentum is lost during a quick shift than during the slow, smooth stock shifts.
For towing, I look at it more about EGTs than about actual weight. The tow tune will inject less fuel than the extreme race tune, meaning less power, but lower EGTs. I fyou are towing heavy, your EGTs will climb faster and stay higher for longer periods of time and this can be bad. Generally you do not want your EGTs to be over 1200 for any length of time, so if you see them climbing that high and staying up, then you know that you should switch to the tow tune. I am guessing with the snowmobile trailer, you truck doesn't even know its back there.