NATHANIALPOPE

iTrader: (2)

About to buy a set of champion beadlock rims for my 2000 trans am with a QP 9inch narrowed 3 inchs per side. I will be using a hoosier 275/60/15(11.5 section width and 10 tread). I would like to get a 10inch rim. What offset would put me as close to the fender without rubbing?

69TA

iTrader: (263)

A 4.5" to 4.75" backspace wheel is what you would need

gator's 99TA

iTrader: (2)

If you did it in a 5.5 BS you wouldnt need to rent fender rollers.

69TA

iTrader: (263)

At 5.5 he would need to beat the F$ck out of the inner well
and also need an adj pan hard bar

GMRACER13

iTrader: (1)

4.5" of backspacing...




5.5" of backspacing... (Note: NONE of the following cars are mini tubbed and run 295 or wider tires)

gator's 99TA

iTrader: (2)

An APR should be on any car that wants to run a custom wheel, tire and stance.


And you are incorrect on your assumption of beating the **** out of the inner quarter if you are talking a 275 nitto or standard mickey thompson radial.

gator's 99TA

iTrader: (2)

Btw a 4.5 BS on a 10" wheel and 275 hoosier on a 3" cut axle will cut the tire when you launch if your shocks aren't set to full stiff. Also, forget about lowering the car. Hello to Z71 style fbody.

GMRACER13

iTrader: (1)

OP is ordering Champion bead locked wheels. I doubt he gives a **** about spending a couple bucks on an adjustable panhard bar and doing a little clearance work to the inner fenders.

69TA

iTrader: (263)

I don't know why you guys think it is such a big deal to
roll the quarters.

gator's 99TA

iTrader: (2)

Because its retarded? If you are that close any little bump or suspension binding will result in a cut tire. I like to do things the right way. It also looks terrible and looking good is as important as function. Wheels sticking out is no bueno for looks and performance.

GMRACER13

iTrader: (1)

Is this your whip?


If so, I think it's safe to assume you don't drag race it (at least not on that wheel and tire combo). Since the OP is asking about backspacing for bead-locked Champion wheels and 275/60/15 tires I would assume he is interested in drag racing. 4.5" backspacing on a 10" wide wheel is not enough backspacing on a rear narrowed 3" per side to tuck a 28" tall drag radial, even with rolled fenders.

EDIT:

Here is a pic. of my car from the same angle.



That's a 295/55/15 28" tall M/T drag radial TUCKED under the rear quarter. My car is slammed on its nuts with NO mini tubs, NO fender rolling and NO CUT TIRES.

69TA

iTrader: (263)

those were my street tires from like 2+ years ago.
If you are going to fish around for my wheels
why don't you pull these....I run these in 18's with 315 in the back
on a narrowed MWC rearend


I also don't do straight line track racing anymore.
I prefer road courses

69TA

iTrader: (263)

My front 295 tires are wider than your 275 rears

69TA

iTrader: (263)

How much overhang do you have on them 295 tires past the
wheel lip?

from the pics it looks close to an inch

also is that a 10 or 11" wheel?

GMRACER13

iTrader: (1)

Reading comprehension owns you, I run 295/55/16 M/T drag radials. The OP is the one who wants to run 275's. Your 315's, on the other hand, are wider than my 295's. So? I don't get it. Is this a "my dick is bigger than your dick" kinda thing? I can guarantee you that those 315's wouldn't get my car down the quarter mile as well as my "skinny" 295's do.


p.s. Those blue wheels look badass on your car.

GMRACER13

iTrader: (1)

It's a 10" wide wheel (actually, I think Weld says they are 10.25"). I've never measured the "overhang" but here is a pic. of them from a different angle before I lowered the car.



And another after lowering it.

69TA

iTrader: (263)

no it's not a my dick is bigger than your dick
I posted that up in comp to the 275's this guy is wanting to run

This is not a flame and I am not blowing up this guy's post over rants of superiority.

There is just not that much room in the back of a 4th gen and I had more than my fair share of wheels and clearance issues.

The guy wanted to run a 275 tire and wanted it to pull up close to the lip that is why I told him to go with a 4.75 bs. He is not running a 295 like you so he should not have the same issues of the lip hitting.

If you are saying that a 295/55/15 28" tall M/T drag radial on a 10" wheel with a 5.5" backspacing clears real easy with no crazy messing around with the inner wells and spending a good deal of time messing with the rear panhard bars and what not
then good for you.

I don't have that previous experience to back that up.
My experience was that anything that deep inwards was a pain in the *** to get clearanced out.

This is coming for a person who has completely cut out the bumpstops, full banged in wheel wells, adjustable panhard bar, rolled fenders...ect
IMO, All of that should not be really necessary if running 275's

So you got that one buddy.
You are the man if you can get that tire to fit so easily with no fender rolling.
I am out...I think this guys thread is getting off track.

OP GL on your wheel selection.
Ask this guy ^^^ here what you need to do with your 275 and 5.5 bs wheel.

gator's 99TA

iTrader: (2)

Who makes a 4.75" BS wheel???

gator's 99TA

iTrader: (2)

275 M/T Pro (wide), 3" off each side and 5.5 BS. No spacers. Loads of room.

GMRACER13

iTrader: (1)

Don't get all pissy now. I'm not sure how giving the OP advice based on the experience of somebody who's done it is considered "off track" but here's some more tech instead of guesstimates from some guy who admits to having no experience and just happens to rent fender rolling equipment.

IF you buy wheels with 4.5"-4.75" of backspacing for your 275 tires and they are too close or you decide to run bigger tires in the future you're fucked. I guess you could buy multiple sets of wheels with different backspacing OR send your rear axle back to get narrowed some more but that gets kind of expensive. If you buy a wheel with a little more backspacing you can fine tune the clearance with spacers (which are inexpensive). And before you flip out about running spacers on a drag car you should know that gator's 99TA (as well as many others) has been low 9's and cuts 1.2x short times with spacers.