Odd sizing ideas...

**Fibbado** · 06-29-2006, 07:34 PM

Okay i'd like some opinions on this matter... now I know that many of you like lowering your car for a good look and dont like ground clearance (too much that is) however i like an agressive look. As of now my car is bone stock, and I am planning on some new rims fairly soon something in the range of 18 x10.5 and 18x9.5 so far pretty simple//// however i want the ass end higher up and i like the idea of big ol' fatties in the back and i have two good condition continental tires that i got from the shop i work in and they are 255/45/18.
So i was thinking...
Rear--18x10.5 w/ 295/35/18
Front--18x9.5 w/ the 255/45/18

now i realize this will mess up the ABS, Speedo and Traction control but i can reprogram my speedometer and my ABS and TCS dont work anyway(rear wheel speed sensor circuit)

so anybody see any problems or is this a fair idea?

**mrr23** · 07-04-2006, 01:37 PM

with the rear being taller than the front, it puts the front/rear weight ratio more biased towards the front. benefit, more responsive steering. con, less weight over rear tires makes for less traction in cornering. means you could oversteer easier.

yes, i know the corvettes are that way. but, the car is designed around it.

**Eugenio_SS** · 07-04-2006, 06:37 PM

i'd use:
Rear--18x10.5 w/ 295/35/18
Front--18x9.5 w/ the 275/35/18
the difference won't be much due to the fact the rear wheel is wider.

**ProwlerZ** · 07-08-2006, 11:29 AM

Well, either you had a mistype or you've been misinformed on the numbers on tires. The first number is tire width across the tread (unmounted), the second number is the tire height, i.e. sidewall, written as a percentage of the width... this is obviously the most confusing number. The third number is the most obvious, being the i.d. of the tire for wheel size, 18 = goes on a 18" wheel.

So, to address your numbers, you'd be looking at a front tire sidewall height of 114.75mm, and a rear height of 103.25 mm, leaving the front higher than the rear.

So basically you'd want a 295/45/18 in the rear, but keep in mind that the difference will be very small. Ultimately the only way to change the stance (substantially) is by hitting the suspension, springs and shocks/struts. Unfortunately, this will have negative effects on performance, as stated before. The cheap way of doing it "right" is getting a stiffer suspension and putting gas adjust shocks on the rear, good ones are still less than $100 each, and you can just put a compressor on it to pump the rear up, and pull the release to lower it back down. They used to be used on trucks to help when carrying large loads. I'm sure someone has a good reason not to use these, but so far they still make sense to me.

**Fibbado** · 07-08-2006, 12:15 PM

So 315/35/17 w 17X10.5 wont fit in the back???

**chrisg** · 07-16-2006, 10:02 PM

Originally Posted by Fibbado

So 315/35/17 w 17X10.5 wont fit in the back???

It will fit thats what I run no problems.

**Eugenio_SS** · 07-17-2006, 07:48 PM

315/35-17 on 17x10.5 is stretching a bit the tires, but it's decent amount... i wouldn't race with those.
remember that 315/35-17 are meant for 11-13" wide rims.