Hey Tierod thats a badass truck you have, just saw the vid clip of ur truck idling. I cant wait to add heads and cam to the truck.
oh btw whats the average MPG for these trucks, cause its cost me $50 bucks to fill my tank half way!!! And it seems the gas gauge drops pretty damn fast.

 

Thanks,
In town 8-10mpg, towing 9-10mpg hwy 12-13mpg. The best I been able to get was 13.5mpg running around 80mph. I have seen guys claim with mods and a good tune 14+mpg. Even with all the mods mine gets 12mpg hwy but 6mpg in town.
If you liked that vid check out this one. http://video.performancetrucks.net/v...85bfb6394e.htm

 

I have heard stories about the piston issues with the 8.1L but they are the same type hyper-crap cast aluminum pistons that all the others have. They are a little bigger for sure, but they are the same otherwise so i am not sure why they get a bad rep. There must be something else about them if they really are that prone to issues. I really am happy with the power increase that the whipple gave my big block, even at the relatively low boost i run. I plan on keeping the boost low enough to be safe. I figure i am right around 400rwhp and 500rwtq at my current boost......and it feels nice.

Oh, and i have no clue what MPG i get, i have never tried to calculate it since i put the blower on. I was getting around 9-10 in the city and 11-12 on the hwy before the blower with 4.10 gears.

 

I paid 96 buck yesterday to fill mine up.....33 gallons!!!!

 

its not so much the pistons as it is the contecting rods...A guy I work with who is a mechanic says he a rebuild so many 8.1L because the number one cylinder break the rod right in half!!!!

 

Mine get 11mpg constistantly with a K&N intake tube only....Im going to do a 4: exhaust when i get this other money pit done!!

 

Thats the first i have heard about weak rods, hmmmmmm. Guess time will tell. I cleaned the quote up a little for you Moe, i had trouble reading it. Thanks for the info.

 

truck looks good ive always liked the front end on the new 2500s

 

I found that the top ring land was too thin. It was done to keep emissions clean. I dynoed 501whp, 640wtq on stock pistons hitting it with a 200hp shot and ran it that way for 2 years. Nitrous is harder on an engine than a blower hands down. Even Raylar pistons had the same problem with the top ring. (I don't think they intended to have some goon hitting it with a healthy shot of go gas) This is why I have J&E pistons now.

 

well, with my measley 6psi and no nitrous, i shouild be good for a while i would imagine.

We need a crossing fingers smiley.