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What's better? wider tyre or wider track?
#862341
06/07/2009 21:54
06/07/2009 21:54
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Joined: Jun 2006
Posts: 141 Germany - Berlin
plasticomnium
OP
On a journey
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OP
On a journey
Joined: Jun 2006
Posts: 141
Germany - Berlin
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Was asking myself this question with regard to track days, slalom, etc... I am tempted to either buy a 1cm wider tyre (ie. 215/40-17) or to keep my 205/40-17 and get some 1 cm spacers..
As the Bravo has much less space available than the coupe, I cannot go for 225s at the front without widening, rear is no problem..
What is your recommendation?
Thanks in advance, Jochen
Bravo 20VT Plus, Gtech1, K&N57i, Blueflame 2.75+race cat, OMP strut hi+lo, BC coils, AP brake 328x28
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Re: What's better? wider tyre or wider track?
[Re: plasticomnium]
#862538
07/07/2009 10:05
07/07/2009 10:05
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Joined: Jul 2008
Posts: 260 Scotland
F927UBS
Making a profit
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Making a profit
Joined: Jul 2008
Posts: 260
Scotland
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Wider track will in effect soften the suspension by increasing the leverage on the suspension, this could be also true of wider tires however that depends on wheel offset and suspension pivot points.
Cheers Tim
Back in the game
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Re: What's better? wider tyre or wider track?
[Re: plasticomnium]
#862545
07/07/2009 10:17
07/07/2009 10:17
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suba
Unregistered
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suba
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I dont think that you will notice much difference either way.
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Re: What's better? wider tyre or wider track?
[Re: Nigel]
#871120
23/07/2009 21:03
23/07/2009 21:03
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TurboJ
Unregistered
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TurboJ
Unregistered
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I run 205/40/17 on mine but i plan changing to 225/45/16. I can't see why 225's wont fit. Are you running et30?
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Re: What's better? wider tyre or wider track?
[Re: Hyperlink]
#871127
23/07/2009 21:21
23/07/2009 21:21
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TurboJ
Unregistered
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TurboJ
Unregistered
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Yes, new 16" wheels. But mine is a Bravo.
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Re: What's better? wider tyre or wider track?
[Re: ]
#873288
28/07/2009 12:48
28/07/2009 12:48
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Joined: Jun 2006
Posts: 141 Germany - Berlin
plasticomnium
OP
On a journey
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OP
On a journey
Joined: Jun 2006
Posts: 141
Germany - Berlin
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I run 205/40/17 on mine but i plan changing to 225/45/16. I can't see why 225's wont fit. Are you running et30? Yep, ET 30 (MilleMiglia 7x17).. The problem is not the width of the 225s but the combination of heigth and width on a 17'' alloy.. this just refers to us 2 Bravo boys (less space than a Coupe) A 225/40-17 would slightly touch the inner plastic cover when the wheel is fully turned left/right. (Though, I have not yet tried with a 225/35-17 as these are usually not stocked and you hardly find some dealer willing to order just for a trial..) Greetz, Jochen
Last edited by plasticomnium; 28/07/2009 12:49.
Bravo 20VT Plus, Gtech1, K&N57i, Blueflame 2.75+race cat, OMP strut hi+lo, BC coils, AP brake 328x28
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Re: What's better? wider tyre or wider track?
[Re: Nigel]
#873293
28/07/2009 12:59
28/07/2009 12:59
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Joined: Jun 2006
Posts: 141 Germany - Berlin
plasticomnium
OP
On a journey
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OP
On a journey
Joined: Jun 2006
Posts: 141
Germany - Berlin
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My recommendation would be to forget about increasing the track or widening the tyres - you will get more grip from getting the basic setup right - a bit of extra camber and some high-quality tyres will do far more than 1cm of extra width on the track or the tyres
I already have a -2,1 degree trackday setting and I was hoping I can fit some quality 225s because I too thought that just 1 cm more will not be worth it.. my current 205s are Proxess T1s so not too bad I was investigating in semislicks, too, but they are only available in 225/45 so it's even worse as space is concerned... Greetz, Jochen
Bravo 20VT Plus, Gtech1, K&N57i, Blueflame 2.75+race cat, OMP strut hi+lo, BC coils, AP brake 328x28
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Re: What's better? wider tyre or wider track?
[Re: Nigel]
#873312
28/07/2009 13:35
28/07/2009 13:35
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Joined: Dec 2005
Posts: 3,158 Near Reading
JohnS
I need some sleep
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I need some sleep
Joined: Dec 2005
Posts: 3,158
Near Reading
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I would personally widen track. I went from ET42 to ET30.5 wheels and there was a noticeable improvement. The Alfa GTV uses ET30 on the alloys to achieve a wider track as standard and it is basically the same suspension setup at the front as the coupe and bravo. If you go for a wider tyre you are basically sacrificing some straight line grip for some lateral grip as the surface area of the contact patch won't change but change shape. I personally would go wide every time as you will have more mechanical grip round bends. That's why I run 245 profile tyres. moving from a 205/40 tyre to a 215/40 will only give you half as much extra track as fitting a 1cm spacer
Actually a wider track means technically that the centre to centre distance between the wheels is greater, so you could have any size tyre and the same track width.
Former low boost hero - 616BHP@1.5 bar. 2.4 20VT RIP
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Re: What's better? wider tyre or wider track?
[Re: plasticomnium]
#873638
29/07/2009 00:01
29/07/2009 00:01
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TurboJ
Unregistered
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TurboJ
Unregistered
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Yes my mistake you have 17". 225 will not clear the arches even 215 would be tight. That’s the reason why I have gone to 16" so I can run 225's
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