[Roadie8105]

I bought Blitz 03 18's and need correct tire size info!! 18x9 F and 18X10 R.. What is general consensus for this setup?? I've heard 245/40 on F and 275/35 on rear... Can someone verify this?? Or should I do 285/35 or 285/30 on rear?? Thanks...

 

[Steve Jarvis]

You need to look at the offset printed on the inside of the wheel. A tire size cannot be recommended without knowing this. I would recommend a 265/35R18 front and a 285/30R18 rear if you have the proper offset. Chances are you do not. You will probably have to run a 255/35R18 front and the 285/30R18 rear. There is no way to say if this will fit without the offsets.

Later, Steve

 

[Roadie8105]

Offsets...

Offets are 42 and 46 respectively (F/R) but would the 30 series in rear give me sufficient traction... I've heard there would be an issue with this but I have automatic and stock twins with extensive upgrades... Thanks

 

[Steve Jarvis]

I sent you an e-mail, but 255/35R18's front and 285/30R18's rear.

Later, Steve

 

[Roadie8105]

Offsets VERIFIED...

Offests are actually 41 F and 45 R as verified by my installer so same 255/35 F and 285/30 R?? Thanks again!!!

 

[pwpanas]

I'd recommend 295/35's in the rear and 265/35's in the front. These sizes are available in S02's.

For fronts, do not consider 245's. Your front rims are a full inch bigger than oem, and 245's are way too small for them. In the rear, the 35 sidewall will help to limit your wheelspin.

The inside lip of your rear fender might need to be trimmed a bit to accommodate the 295's, but I have a feeling that your installer might be able to take care of that for you...

 

[David (NJ)]

Steve,

On your spreadsheet those sizes (255 and 285) would be at the fender rubbing limit with those offsets (41 and 45). Since tire sizes vary by manufacturer, isn't this cutting it very close? Wouldn't at 265/35 rear with either a 235/40 or 245/40 front be safer?

David

 

[Steve Jarvis]

Go with the A03's 255/35 and 285/30. I sent you an e-mail. These will be close, but it will be worth it. Any rubbing (which I doubt) will be fixable with an alignment and a screwdriver. Sound funny, but I will elaborate if needed (after you install the tires).

Later, Steve

 

[Curt Aigner]

Go with the A03's 255/35 and 285/30. I sent you an e-mail. These will be close, but it will be worth it. Any rubbing (which I doubt) will be fixable with an alignment and a screwdriver. Sound funny, but I will elaborate if needed (after you install the tires).

Later, Steve

Steve,

I just ordered the exact set-up for my 98 tt project car.

The Wheels thru Dennis at Wheel Kenitics[Blitz 03's 18's best prices!] and the Tires[pole position 03's best prices for me!] thru Toyota Tire Dealers.

Now for the BIG question?????

What is the recomended alignment spec's frt and rear for this set-up??

I have the TRD spring/Strut{bilstein}/sway bar combo.

Should i just go out of my factory service manuel????

I tried the SEARCH feature but no luck.

Thanks to anyone with any info.

 

[Curt Aigner]

^UP

 

[pwpanas]

...What is the recomended alignment spec's frt and rear for this set-up??...

'Lance's specs' will work well for your setup:"
front: camber -1.0 , caster +5.0 , toe 0.00
rear: camber -1.5, toe in 1.0mm
the front and rear toe are critical to tire wear, even small deviations from spec may cause unusual wear patterns or excessive wear. "

 

[Curt Aigner]

Excellent :smile:

Thanks again for everyones info.