Debating on replacing rims...Hmm
05-27-11, 10:31 AM
#17
It depends on what your purpose behind "keeping the weight down" is. My guess is that reducing the wheel weight won't gain enough to measurably affect the performance when you consider that the car is already in the 4000 lb range. Even if you reduced the wheel weight down to 0 from 30 lb (obviously impossible), you'd only knock 3% off the total vehicle weight.
05-27-11, 10:34 AM
#18
Personally, I'd stick with what you have. Or sell them and pick up a used set of forged aluminum 20s. What you lose in wheel weight, you're going to gain some of that back in tire weight with larger profile tires. So I'd be surprised if you notice much if any performance gain over light-weight 20s. Also, 20s look much better in my opinion.
245/40ZR18 31 lbs
Pilot Sport A/S Plus
245/40ZR18 27 lbs
245/35ZR19 26
275/30ZR19 29
(more popular over spec 20" tires)
245/35ZR20 26
275/30ZR20 29
Last edited by talwang; 05-27-11 at 12:01 PM.
05-27-11, 01:52 PM
#20
I did my own Wheel/Tire size & fitment chart for the sc430. Please correct me if i'm wrong
Sidewall thickness to ground (inch) - This is thickness of the sidewall rubber. lower number mean more low profile tire.
Total Height (inch) - Total height of the tire & wheel with this spec of wheel & tire.
Height-Diff (inch) - Overall height gain/reduce. This show overall combine wheel tire size comapre to factory height.
Rotation-Diff - % of overall rotation different base on overall height. This make a different with MPH too. If you have a 5% gain in overall size and doing 100MPH, you actually doing 105MPH.
Sidewall thickness to ground (inch) - This is thickness of the sidewall rubber. lower number mean more low profile tire.
Total Height (inch) - Total height of the tire & wheel with this spec of wheel & tire.
Height-Diff (inch) - Overall height gain/reduce. This show overall combine wheel tire size comapre to factory height.
Rotation-Diff - % of overall rotation different base on overall height. This make a different with MPH too. If you have a 5% gain in overall size and doing 100MPH, you actually doing 105MPH.
Last edited by grabber2; 05-27-11 at 02:08 PM.
05-31-11, 11:25 AM
#21
Thanks for the info! Do you know the quality of the Drag wheels they have for sale? I like these but they're so cheap I'm wondering about the quality: http://www.elementwheels.com/proddet...rod=dr38188sil
Other options (in order from what I like) are:
http://www.tirerack.com/wheels/Wheel...ll&sort=Weight
http://www.tirerack.com/wheels/Wheel...ll&sort=Weight
http://www.tirerack.com/wheels/Wheel..._24&sort=Price
Other options (in order from what I like) are:
http://www.tirerack.com/wheels/Wheel...ll&sort=Weight
http://www.tirerack.com/wheels/Wheel...ll&sort=Weight
http://www.tirerack.com/wheels/Wheel..._24&sort=Price
Last edited by redliner8; 05-31-11 at 11:42 AM.
06-01-11, 06:48 AM
#23
Yea I think I'm going to go for one of the wheels on TireRack, they are more well known. I officially have my old rims up for sale. Hopefully they sell soon so I can buy these new ones. If any one is interested: https://www.clublexus.com/forums/whe...rs-fs-too.html, my spacers are up for sale too: https://www.clublexus.com/forums/whe...l-spacers.html
07-14-11, 07:29 AM
#24
Update, I finally replaced the chromes with some lightweight ones, 45.5 lbs each with the tire (stock 53.5 lbs each, chromes about 65 lbs each). I can definitely feel the difference. I kept the spacers on, and the rims are flush with the fenders. Also, I took some of your advice and went with the Hankook Ventus tires, wow, definite improvement. Now just need to decide if I should lower it or not, there's about a 2" gap from the fender. I'm hesitant because my exhaust is already quite low:
Last edited by redliner8; 07-14-11 at 08:31 AM.
07-14-11, 12:36 PM
#28
cyberlexus, they're 18" and 8.5 wide all the way around, 35 offsets. I have 20mm spacers in front, 30mm spacers in the rear. They're really flush with the fender, maybe even sticking out a few mm. The lightweight was one of my biggest reasons I went with them.
Last edited by redliner8; 07-14-11 at 12:39 PM.
