I just bought some new tires the other day and i was wondering what i should expect in the 1/4 if i already run a 15.7 on 265/75 r16's. My new tires are a little bigger but i think i lack the power to get em movin fast enough 285/75 r16 they're 33" tires! Thanks

Oh and i think that each tire weighs about 10 lbs more each

 

SLOW, well i am guesing since those are taller and also heavier your going to slow down a bit, I say around 16-16.2 at 85 mph.

 

Damn you think that bad?? Like almost a full second?

 

well think about it, going to a taller tire from a 31 stock I believe to a 33 would be like taking your gears and switching them out for 3.42 or 3.08 plus add the 10 extra lbs from every tire 40lbs. I am saying it's going to be around the 16 second mark. your highway mileage should improve and the city mileage will drop. you ned to get in those 4:10 or finish your build up.

 

Yep thats it, I trying to finish it but my damn girl just made us buy a house so im stuck for a min i think it'll be about next june b4 this thing is done, and its blacking me oout cause i want it done now!!! Dude do you know the only thing im waiting on now is sending my 4l80e for the build, Get the rear end, the turbo, machine the block and install. im soooooo close and its killin me man

 

Slap in some 4.56's (which would play nicely with 33's and OD) and it should knock 1/2 to 3/4 of a second off of your times on getting that big heavy truck moving down the track if you get a good launch. Big iron need big gears.

 

I totally nderstand, the wife holds alot of things up for me, and yes I know all about the house thing. good luck.

 

Thanks bro