[docf]

When changing stock 360 wheels to Challenge do you need to change alignment or offset etc.

Docf

[tazandjan]

Doc- CS, F430, and Scud/16M wheels will fit the 360 without changes and have essentially the same offsets.

[StefVan]

I would say, no need for an alignment even though it's always good to have one done from time to time. But I let our wheel specialist Terry shime in, to make sure

[StefVan]

Whaaw, Terry is indeed very fast

[docf]

Originally Posted by docf

When changing stock 360 wheels to Challenge do you need to change alignment or offset etc.

Docf

Forgot to also ask. Is there a difference between Challenge wheel and Challenge Race wheel? I'm looking for a challenge wheel to replace my stock wheels on my 03 360.

Docf

[tazandjan]

Doc- 360 Challenge wheels are 18 in vs the 19 in CS/F430 wheels. F430 Challenge race wheels are center locks and expensive to adapt.

On any purchase of new wheels and tires, I would recommend a full four wheel alignment and ride height adjustment.

[360MVA]

Guys, while on the subject. I am looking at the same swap but curious on tire sizes. Looking at the RE11 but they only have 235's vs 225's. If I go +1 on the fronts do I need to do the same on the rears? These are 19" wheels btw. Thanks

[StefVan]

To give you an idea of the available options, here are some calculated options for different tire sizes:

Rear
285/35R19 - Rim Width Range : 9"-11"
Sidewall : 3.9"/99.9mm
Diameter : 26.854"/682.1mm
circumference : 84.364"/2142.9mm
Revs/mile : 751
Revs/km : 467
Speedo : 60mph/100kmh

295/35R19 - Rim Width Range : 10"-11.5"
Sidewall : 4.1"/103.2mm diff: +0.2"/+3.3mm
Diameter : 27.130"/689.1mm diff: +0.276"/+7mm
circumference : 85.231"/2164.9mm diff: +0.867"/+22mm
Revs/mile : 743 = 1% slower
Revs/km : 462
Speedo : 59.4mph/99kmh

295/30R19 - Rim Width Range : 10.5"-11.5"
Sidewall : 3.5"/88.5mm diff: -0.4"/-11.4mm
Diameter : 26.0"/659.6mm diff: -0.854"/-22.5mm
circumference : 81.6"/2072.2mm diff: -2.764"/-70.7mm
Revs/mile : 777 = +3.4% faster
Revs/km : 462
Speedo : 62kmh/103kmh

Front
225/35R19 - Rim Width Range : 7.5"-9"
Sidewall : 3.1"/78.8mm
Diameter : 25.2"/640.1mm
circumference : 79.2"/2010.9mm
Revs/mile : 800
Revs/km : 497
Speedo : 60mph/100kmh

235/35R19 - Rim Width Range : 8"-9.5"
Sidewall : 3.2"/82.2mm diff: +0.1"/+3.4mm
Diameter : 25.5"/647.1mm diff: 0.3"/+7mm
circumference : 80.0"/2032.9mm diff: 0.8"/+22mm
Revs/mile : 792 = 1.1% slower
Revs/km : 492
Speedo : 59.3mph/98.9kmh

Conclusions (if my calculations are right ) :

If you move for the 235/35R19 front tires, you should go also for the 295/35R19 tires to maintain identical proportions and height increase of 7mm (and vice versa). Wheels will turn a bit slower though but in a very limited proportion (1%). You'll have to do a complete geometric alignment after such change.

[360MVA]

You are the man - thank you. If I need an alignment I may as well lower it a bit.


QUOTE=StefVan;163817]To give you an idea of the available options, here are some calculated options for different tire sizes:

Rear
285/35R19 - Rim Width Range : 9"-11"
Sidewall : 3.9"/99.9mm
Diameter : 26.854"/682.1mm
circumference : 84.364"/2142.9mm
Revs/mile : 751
Revs/km : 467
Speedo : 60mph/100kmh

295/35R19 - Rim Width Range : 10"-11.5"
Sidewall : 4.1"/103.2mm diff: +0.2"/+3.3mm
Diameter : 27.130"/689.1mm diff: +0.276"/+7mm
circumference : 85.231"/2164.9mm diff: +0.867"/+22mm
Revs/mile : 743 = 1% slower
Revs/km : 462
Speedo : 59.4mph/99kmh

295/30R19 - Rim Width Range : 10.5"-11.5"
Sidewall : 3.5"/88.5mm diff: -0.4"/-11.4mm
Diameter : 26.0"/659.6mm diff: -0.854"/-22.5mm
circumference : 81.6"/2072.2mm diff: -2.764"/-70.7mm
Revs/mile : 777 = +3.4% faster
Revs/km : 462
Speedo : 62kmh/103kmh

Front
225/35R19 - Rim Width Range : 7.5"-9"
Sidewall : 3.1"/78.8mm
Diameter : 25.2"/640.1mm
circumference : 79.2"/2010.9mm
Revs/mile : 800
Revs/km : 497
Speedo : 60mph/100kmh

235/35R19 - Rim Width Range : 8"-9.5"
Sidewall : 3.2"/82.2mm diff: +0.1"/+3.4mm
Diameter : 25.5"/647.1mm diff: 0.3"/+7mm
circumference : 80.0"/2032.9mm diff: 0.8"/+22mm
Revs/mile : 792 = 1.1% slower
Revs/km : 492
Speedo : 59.3mph/98.9kmh

Conclusions (if my calculations are right ) :

If you move for the 235/35R19 front tires, you should go also for the 295/35R19 tires to maintain identical proportions and height increase of 7mm (and vice versa). Wheels will turn a bit slower though but in a very limited proportion (1%). You'll have to do a complete geometric alignment after such change.[/QUOTE]

[tazandjan]

Stef- You are correct about keeping a similar ratio between the front and rear tires as OEM. When that ratio approaches the 5% difference range from OEM, the ABS will start having problems.

[Boxer]

Originally Posted by tazandjan

Doc- 360 Challenge wheels are 18 in vs the 19 in CS/F430 wheels. F430 Challenge race wheels are center locks and expensive to adapt.

On any purchase of new wheels and tires, I would recommend a full four wheel alignment and ride height adjustment.

The standard race/track BBS 360 Challenge wheels are also made from a softer alloy than than normally street wheels. You need to be very careful as it is easy to bend a rim.

[docf]

Originally Posted by Boxer

The standard race/track BBS 360 Challenge wheels are also made from a softer alloy than than normally street wheels. You need to be very careful as it is easy to bend a rim.

Boxer , How do you tell which BBS Challenge are for track and which are for street in the challenge style or are all Challenge wheels race/track. I have seen some that have BBS in red surrounding the lug area and some that are totally painted silver.

Docf

[Killer58]

The ones painted with the red BBS logos are the race versions. Although I guess one could add them onto the street versions too.

[Boxer]

Originally Posted by docf

Boxer , How do you tell which BBS Challenge are for track and which are for street in the challenge style or are all Challenge wheels race/track. I have seen some that have BBS in red surrounding the lug area and some that are totally painted silver.

Docf

Don't know about the red painted lug area. The ones I used to have were silver. Also they are 18" vs the 360 CS rims which are 19".

[tazandjan]

Doc- You want the 19" monolithic wheels for the CS or F430, also called Challenge style, but not real Challenge racing wheels. Like Boxer said, you can tell the difference with a measuring tape.

[docf]

Originally Posted by tazandjan

Doc- You want the 19" monolithic wheels for the CS or F430, also called Challenge style, but not real Challenge racing wheels. Like Boxer said, you can tell the difference with a measuring tape.

Would I need to roll the front fender lips with that wheel? Would you have any idea where to buy this wheel? Monolithic is a BBS?

DOcf

[tazandjan]

Doc- No, they fit perfectly. You could even put the Scud/16M 8" wide front wheels on the car and they fit perfectly. Novitec makes 19 x 9 F and 12.5 x 19 R wheels for the 360 and they fit perfectly. Dozens of owners have fitted 19" Challenge or F430 5/10 spoke wheels. There is even a thread here with photos of a 360 newly fitted with the 19" wheels.

Better pictures of the Challenge wheels


See if this helps:

360

Five Spoke and Modular 18”, 5 X 108 mm
Front 7.5J X 18 ET 31.5 mm, Rear 10J X 18 ET 39 mm

360 Challenge Stradale

Challenge Monolithic 19”, 5 X 108 mm
Front 7.5J X 19 ET 31.5 mm, Rear 10J X 19 ET 39 mm

F430

Five (Ten) Spoke and Challenge Monolithic 19”, 5 X 108 mm
Front 7.5J X 19 ET 31.5 mm, Rear 10J X 19 ET 39 mm

Scuderia/16M

10 Spoke, Five Spoke 19”, 5 X 108 mm
Front 8J X 19 ET 31.5 mm, Rear 10J X 19 ET 39 mm

[docf]

Thank you very much Taz,

With your help I have located an individual approx. 70 miles from where I live that has the 19's

[F1.360.LOVER]

I am thinking of getting the BBS LM 18" wheels for my 360 from tire rack. They are recommending the stock tire size. The front wheels are an inch wider than stock and the rear are a half inch wider. I'm not too worried about the rear tires fitting but the fronts are of concern. Any thoughts? Thanks in advance.

Nate

[Boxer]

Originally Posted by F1.360.LOVER

I am thinking of getting the BBS LM 18" wheels for my 360 from tire rack. They are recommending the stock tire size. The front wheels are an inch wider than stock and the rear are a half inch wider. I'm not too worried about the rear tires fitting but the fronts are of concern. Any thoughts? Thanks in advance.

Nate

I would be careful about fitting wider front tires, it will effect the handling.