15" or 17"?

vr2turbo

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Hi 6UE5t,

The diameter increment is okay with me, what is important is traction :(
Fuel consumption is not an issue cause this is not my daily ride.
About braking, will look into upgrades for that later on.
Right now just using mitsu twin pot brakes which I personally think is sufficient enough.
I believe for the front, 235/45/17 won't be an issue for Wira.
What I worry most is the rear. I have never seen a Wira running on 235/45/17 hence would really like to get some info here if its possible to be done without excessive mods.
My ideal setup would be 235/40/17 but I hardly see anyone using this size. Mostly are 235/45/17.
Forget comfort cos I'm trying to setup this car mainly for some fun on the track.

Thanks for the fast response! :)
Your front may clear the fender but what about your turning circle. Full turn may hit your inner fender and what about suspension clearance? There is 40mm extra width.
 

Penghanyut

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Hi vr2turbo,

I'm looking for rims spec around 17x8JJ +30 to +35 range and the car is running on adjustables (no more big bulky spring seat like the stock). Yeah another thing to consider is the inner fender. Never really came across my mind :) Thanks for reminding.
Btw, you're running on VR4 as well right? Mind if I ask hows the traction like running on 17"? Whats your tyres spec and what tyres are you using?
 

vr2turbo

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Hi vr2turbo,

I'm looking for rims spec around 17x8JJ +30 to +35 range and the car is running on adjustables (no more big bulky spring seat like the stock). Yeah another thing to consider is the inner fender. Never really came across my mind :) Thanks for reminding.
Btw, you're running on VR4 as well right? Mind if I ask hows the traction like running on 17"? Whats your tyres spec and what tyres are you using?
Normal 17" are +42 offset and most comes in at 7 to 7.5J only. 8" got to scout around, especially +30 offset. Try asking those bigger tyre shops.
Yup, have to check inner fender as you have gone 40mm wider.
My stock Super Saloon last time was 185/70R14, then I tried 205/50R16 because at that time 17" was very expensive. After a few years, 17" came in cheaper and 16" have less choice then only I switch. The tyre size I am using is 215/45R17, and have kept to this size because is the correct conversion, the size is the most common, plenty of tyre choices and cheaper the 225/45 and 235/45R17. Some VR4 club mates are running 235/45R17, of course looks better but will take up some pick up power and will aquaplane more easy. Traction is good enough for me as I use as every day drive. Of course different tyres gives different performance. I have used the likes of Falken ST115, Yoko ES100, Falken FK452, Yoko S-Drive, GY GS-D3, Toyo T1-R, GY Asy, Blue Streak Stiletto, GY Asy2 and GT Radial Champiro HPY. All give different feedback, be it better in wet, dry, aquaplaning resistance, handling, ride comfort and so on...
 

6UE5t

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Hi 6UE5t,

The diameter increment is okay with me, what is important is traction :(
Fuel consumption is not an issue cause this is not my daily ride.
About braking, will look into upgrades for that later on.
Right now just using mitsu twin pot brakes which I personally think is sufficient enough.
I believe for the front, 235/45/17 won't be an issue for Wira.
What I worry most is the rear. I have never seen a Wira running on 235/45/17 hence would really like to get some info here if its possible to be done without excessive mods.
My ideal setup would be 235/40/17 but I hardly see anyone using this size. Mostly are 235/45/17.
Forget comfort cos I'm trying to setup this car mainly for some fun on the track.

Thanks for the fast response! :)
Well generally it's not recommended to go over 3% larger than the std diameter and you certainly will go way over than that if using this setup. But anyway, the only thing to you need to do to clear your doubts is to try fit one before buying.
I think 235/40 is also available though for some brands and should be slightly easier to fit in.
 

vr2turbo

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Well generally it's not recommended to go over 3% larger than the std diameter and you certainly will go way over than that if using this setup. But anyway, the only thing to you need to do to clear your doubts is to try fit one before buying.
I think 235/40 is also available though for some brands and should be slightly easier to fit in.
The tyres will be pretty expensive too. Only way to fit 235 size probably can offset the tyres out of the wheel arch....:biggrin:
 

6UE5t

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The tyres will be pretty expensive too. Only way to fit 235 size probably can offset the tyres out of the wheel arch....:biggrin:
Yes, that's what I think as well. But again if don't care about the looks and just got to have that much rubber on the road, then I guess still be ok. :biggrin:
 

Penghanyut

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vr2turbo,

8JJ is hard to come by especially when I'm running on 4x100 PCD. Don't want any hassle to convert my knuckle into 5x114.3 though this will definitely widen my choices of rims. Found a set of CE28 replica with +32 and 8JJ spec. Hopefully that will fit in.
Front tyres are expected to be slightly out of the fender. As long as I can make U-turns without much hassle then its okay with me :)
I've been reading some topics on this forum and got to know that you're the person most people refer to when it comes to tyres :)
I'm considering Kumho KU36 to go along with the rims. Any idea on the pricing for 235/45/17 (or if they have 235/40/17?)? R888 is out of budget for the moment :(



6UE5t,

Trying to fit it in is definitely the best method but unfortunately, my car is not drivable now.
Hoping to gain more info before going to the tyre shop so that I can narrow down my choices of wheel specs.
As for looks, as long as the wheel can fit in with minor modifications then I'm happy already.
Car needs a new paint job really bad but for now I'm trying to make the car go faster first.
Wouldn't want to be called "All show but no go" car :(
 

vr2turbo

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vr2turbo,

8JJ is hard to come by especially when I'm running on 4x100 PCD. Don't want any hassle to convert my knuckle into 5x114.3 though this will definitely widen my choices of rims. Found a set of CE28 replica with +32 and 8JJ spec. Hopefully that will fit in.
Front tyres are expected to be slightly out of the fender. As long as I can make U-turns without much hassle then its okay with me :)
I've been reading some topics on this forum and got to know that you're the person most people refer to when it comes to tyres :)
I'm considering Kumho KU36 to go along with the rims. Any idea on the pricing for 235/45/17 (or if they have 235/40/17?)? R888 is out of budget for the moment :(



6UE5t,

Trying to fit it in is definitely the best method but unfortunately, my car is not drivable now.
Hoping to gain more info before going to the tyre shop so that I can narrow down my choices of wheel specs.
As for looks, as long as the wheel can fit in with minor modifications then I'm happy already.
Car needs a new paint job really bad but for now I'm trying to make the car go faster first.
Wouldn't want to be called "All show but no go" car :(
Nope I don't think they have 235/40R17 size. Not too sure of the price too as the shops I know do not stock this tyre.
Try looking at GT Radial Champiro SX2, they have this size too....

Yup, the front will be further out as FWD front track is wider. With the rims further out and the heavier weight I am also worried about your wheel bearings....
 
Last edited:

^pomen_GTR^

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nowadays got plenty of 15" rims with 7jj or 8jj hence even 9jj....quite cheap also..taiwan quality with copying original rim manufacturer design....


but sourcing tyre 205/50-15 a bit hard la...
 

Penghanyut

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Just checked some websites and found out there are 225/50/15 R888. Will it fit well onto my current 15x7JJ wheels?
Any idea which shop carries the size and price wise? Thanks!
 

vr2turbo

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Just checked some websites and found out there are 225/50/15 R888. Will it fit well onto my current 15x7JJ wheels?
Any idea which shop carries the size and price wise? Thanks!
225/50R15 just nice for 7J rims.

Try the following, they sell Toyo tyres, maybe can order for you

Weng Tat Tyre Service
No. 12, Jalan SS14/ 2, Subang Jaya
47500 Selangor, Malaysia
Tel: 03-5634 7753 (Wan Hoong Wai)

E.D. Tyre Autocare Sdn. Bhd.
24, Jalan Utas A
Section 15
40000 Shah Alam
Tel: 5510 0620 (Richie)
Fax: 5511 0820
www.edtyre.com

HupShun Tyres Auto Car Care Sdn. Bhd.
11, Jln. PJS11/7, Bandar Sunway
46150 Petaling Jaya
Tel: 03-5632 9926 , 5637 2275 (Mr. Tee)
 

K_Takuya

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If standard engine below 1.6, stick to 15..for standard engine higher than 1.6 may try 17. if standard engine below 1.6 and going with 17 for more traction, the car may be sluggish.

Use standard tyre size while using better UHP tyre. More camber if you want to attack corner :)
 

Penghanyut

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vr2turbo,

Thanks for the contacts!

6UE5t,

Thanks for the link...still prefer my current rims :D

K_Takuya,

I'm running on 2L turbo.
Btw, sorry for not making it clear, when I mentioned traction, what I meant was straight line pick up.
Currently on full lock LSD and with only 240whp, 3rd gear itself on 15" on R888 and the car is wheel spinning quite a bit on 60km/h rolling start.
Going for next stage upgrade soon aiming 100whp increase hence asking for advice on traction.

Has anyone has any friends whom successfully fit 235/45/17 tyres onto their Wiras?
 

ColdPlay

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Have you try installing launch control device?
Last time, friend's 4xxwhp weekend ride wheel spin during take off. Problem minimized after using PowerSports launch control.
Wild torque feeling also changed to more linear after the final drive was altered.
 

wajunk

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vr2turbo,

Thanks for the contacts!

6UE5t,

Thanks for the link...still prefer my current rims :D

K_Takuya,

I'm running on 2L turbo.
Btw, sorry for not making it clear, when I mentioned traction, what I meant was straight line pick up.
Currently on full lock LSD and with only 240whp, 3rd gear itself on 15" on R888 and the car is wheel spinning quite a bit on 60km/h rolling start.
Going for next stage upgrade soon aiming 100whp increase hence asking for advice on traction.

Has anyone has any friends whom successfully fit 235/45/17 tyres onto their Wiras?

try control your foot n pedal :biggrin:
i think 225/45 is enough..tyre choice also very common for this size.
look for kumho ku36..or if more budget then go for federal rsr.
 

Penghanyut

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ColdPlay,

Sorry bro, my ecu doesn't support traction control. :(

wajunk,

Yeah good suggestion, but why waste the power when we can put more onto the ground right? :)
I was actually targetting for KU36 for the rear and maybe R888 for the fronts if budget permits. Else will just go with KU36 for all 4.
 

K_Takuya

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2L turbo need 17" with UHP tyre then :) Soften the tyre pressure a bit may get you more traction too..
 

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