SC430 wheel fitment
Currently I am with stock 18 all around. I am strongly considering 245 45 19" all around. Lexus advises not to do that as it will throw off both speedometer and GPS. I'm not an aggressive driver and was only going to 19s with new custom wheels and little better look. I really don't want to screw up anything else. Perhaps I should stick with stock config. Any advice here will be helpful.
Thanks, BB
Thanks, BB
Driver School Candidate
Joined: Sep 2008
Posts: 47
Likes: 0
From: IL
If you go to 19's you shouldn't keep the 45 profile tires. You'll need to go to a lower profile. The profile you go down to depends on the width of the tires you go with.
For example a 255-35 series - 19 inch tire will be the same as stock and won't effect your speedo (or maybe less than 1mph). A 275 width - 30 series 19 inch will also give you the same overall height as stock. If you want to stay with 245 width you'll probably need a 40 series. There are tire calculators online that you can use to figure it out.
I would probably try to stay with 255 - 35 series if you are trying to keep all the tire the same width so you can rotate them. I think most people on here go with a staggered setup (different sizes for front and rear).
The wheels you buy will effect what you can use too. Each wheel has a different offset. There is a sticky here about wheels that will tell you what offsets and tire sizes that will work for the sc430.
Buying wheels and tires takes a lot of research and time. Be patient.
For example a 255-35 series - 19 inch tire will be the same as stock and won't effect your speedo (or maybe less than 1mph). A 275 width - 30 series 19 inch will also give you the same overall height as stock. If you want to stay with 245 width you'll probably need a 40 series. There are tire calculators online that you can use to figure it out.
I would probably try to stay with 255 - 35 series if you are trying to keep all the tire the same width so you can rotate them. I think most people on here go with a staggered setup (different sizes for front and rear).
The wheels you buy will effect what you can use too. Each wheel has a different offset. There is a sticky here about wheels that will tell you what offsets and tire sizes that will work for the sc430.
Buying wheels and tires takes a lot of research and time. Be patient.
Driver School Candidate
Joined: Sep 2008
Posts: 47
Likes: 0
From: IL
Romni, I bought 5mm h and r spacers for my front wheels. Is there a proper way to get them to center. They shake like a bad balance even though I've had the tires balance a few times.
The 5mm spacers do not allow for the wheel centering hub to work properly since they do not have a built in lip.
I was thinking of getting the 10mm spacer that has the lip built onto the spacer instead. What do you think?
My steering wheel does get pulled quite easily from road deformities with the 5mm spacer and 19X9.5in wheels with 255X35X19 tires. Will this get worse when going wider (less offset)? When I put the stock wheels without the spacer on for winter there was no pull.
I'm also thinking about buying a spacer for the rear. Any suggestions on how big it should be? I have 19X9.5in wheels with 275X30X19 tires on the rear. I would like the wheels to be as close to flush as possible without having to modify the fenders.
Thank youl
The 5mm spacers do not allow for the wheel centering hub to work properly since they do not have a built in lip.
I was thinking of getting the 10mm spacer that has the lip built onto the spacer instead. What do you think?
My steering wheel does get pulled quite easily from road deformities with the 5mm spacer and 19X9.5in wheels with 255X35X19 tires. Will this get worse when going wider (less offset)? When I put the stock wheels without the spacer on for winter there was no pull.
I'm also thinking about buying a spacer for the rear. Any suggestions on how big it should be? I have 19X9.5in wheels with 275X30X19 tires on the rear. I would like the wheels to be as close to flush as possible without having to modify the fenders.
Thank youl
Driver School Candidate
Joined: Feb 2009
Posts: 25
Likes: 0
From: sd
well this is all good...
but for those of us that are driving this car as a sunny day ride and dont want to spend the bux on 19's or 20's...
ROM doesnt like 18's and that cool. im just a cheap sob and wanted minimum output of $$$
18's are plenty tall in my opinion and you can still have "some" sidewall sqwish.
i am trying 18x8 +38 on the front. should bring the wheel out 3/8 of an inch toward the fender. 245/40/18 falken 452
rear 18x9.5+35 again will bring the wheel out3/8 inch plust 3/4 of an inc because of width so 1 1/8th toward fender. 275/35/18 falken 452
will post pics when they arrive?
TOTAL price mounted, balanced, hub centrics, lugs and delivered...1200$ we'll see how it works.
UPDATE: everything bolted right up offsets worked about perfect for the look i wanted. now the car needs coilovers...
https://www.clublexus.com/forums/sc-...ml#post4338082
but for those of us that are driving this car as a sunny day ride and dont want to spend the bux on 19's or 20's...
ROM doesnt like 18's and that cool. im just a cheap sob and wanted minimum output of $$$
18's are plenty tall in my opinion and you can still have "some" sidewall sqwish.
i am trying 18x8 +38 on the front. should bring the wheel out 3/8 of an inch toward the fender. 245/40/18 falken 452
rear 18x9.5+35 again will bring the wheel out3/8 inch plust 3/4 of an inc because of width so 1 1/8th toward fender. 275/35/18 falken 452
will post pics when they arrive?
TOTAL price mounted, balanced, hub centrics, lugs and delivered...1200$ we'll see how it works.
UPDATE: everything bolted right up offsets worked about perfect for the look i wanted. now the car needs coilovers...
https://www.clublexus.com/forums/sc-...ml#post4338082
Last edited by flyguyskt; Mar 13, 2009 at 10:43 AM.
Pole Position
Joined: Mar 2009
Posts: 327
Likes: 0
From: oh
i have a question. i am in the middle of a gt syle widebody conversion on this vehicle and i need custom wheels. what offset would i need fo r20x10 in the front and 20x12 in the rear? please help!
thanks
joe
thanks
joe
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Any progress pics?
Right now my setup is 19x9 +19 and 19x11+23 and fitment to me looks pretty damn good. Do you want the wheels to be flush?
Pole Position
Joined: Mar 2009
Posts: 327
Likes: 0
From: oh
thanks
joe
i unfortunally cant show pics until its done. part of the sponsorship, but i am trying to purchase wheels now so they can be made by completion. i am simply extending the kit OUTWARDS, so i just need the wheels to sit under the car but increase the lip. make sense? any help is appreciated.
thanks
joe
thanks
joe
Pole Position
Joined: Mar 2009
Posts: 327
Likes: 0
From: oh
Joined: Feb 2001
Posts: 31,944
Likes: 2,738
From: North Carolina
Joe,
You should look into the wheels put on the AAP turbo SC430 widebody for reference.
Some old posts
https://www.clublexus.com/forums/lex...tlanta-ga.html
https://www.clublexus.com/forums/sc-...in-the-us.html
https://www.clublexus.com/forums/sc-...ing-rears.html
Please don't bump all the old posts, just giving you some possible leads to use via PM or email, thanks
You should look into the wheels put on the AAP turbo SC430 widebody for reference.
Some old posts
https://www.clublexus.com/forums/lex...tlanta-ga.html
https://www.clublexus.com/forums/sc-...in-the-us.html
https://www.clublexus.com/forums/sc-...ing-rears.html
Please don't bump all the old posts, just giving you some possible leads to use via PM or email, thanks
Pole Position
Joined: Mar 2009
Posts: 327
Likes: 0
From: oh
people!!!!
we went off an entire different direction here. i asked for some help. can anyone give me any?
here is the breakdown
front is stretched by 3" on each side.
back is stretched by 4.5 inches on each side
i need offset for 20x10 in the front and 20x12 in the rear
3 piece wheels.
any help on offset and tire size is appreciated
thanks gang
joe
we went off an entire different direction here. i asked for some help. can anyone give me any?
here is the breakdown
front is stretched by 3" on each side.
back is stretched by 4.5 inches on each side
i need offset for 20x10 in the front and 20x12 in the rear
3 piece wheels.
any help on offset and tire size is appreciated
thanks gang
joe
people!!!!
we went off an entire different direction here. i asked for some help. can anyone give me any?
here is the breakdown
front is stretched by 3" on each side.
back is stretched by 4.5 inches on each side
i need offset for 20x10 in the front and 20x12 in the rear
3 piece wheels.
any help on offset and tire size is appreciated
thanks gang
joe
we went off an entire different direction here. i asked for some help. can anyone give me any?
here is the breakdown
front is stretched by 3" on each side.
back is stretched by 4.5 inches on each side
i need offset for 20x10 in the front and 20x12 in the rear
3 piece wheels.
any help on offset and tire size is appreciated
thanks gang
joe
I will pay someone to measure it if I can get the wheels for free.
For the record, this is only the mathematical setup caculated by me.
I have no idea if it is doable or correct.
F: 285/30/20, 20x10 -38
R: 345/25/20, 20x12 -63