Dangle_kt
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| posted on 14/8/07 at 01:47 PM |
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17" Wheels - ground clearence
Hi,
If people are having issues with ground clearence then will fitting BIGGER alloys help?
I am thinking 17" team dynamics 1.2's in black *drools* becuase they are bigger would I be correct in assuming I would get a 1"
increase in ride height vs 15" wheel on similar tyres?
Feel free to shoot down my logic - I'm new to this car lark! 
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coozer
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| posted on 14/8/07 at 01:51 PM |
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My standard Ford 14" alloys with 185/65 14 tyres are 23" high.
My tintop Rover has horrible 17's on it with 205/40 17 Yoko's on them. They are 23" as well.
Anybody want to swap Rover fit 17's for some bog standard Rover 15's please??
1972 V8 Jago
1980 Z750
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chrsgrain
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| posted on 14/8/07 at 01:58 PM |
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Depends on the tyre profile - so you can keep your current rims and retyre with 'deeper' tyres, will do the same thing. Conversly you can
keep the same rolling diameter when you go up a rim size by chosing 'thinner' low profile tyres....
Chris
Spoing! - the sound of an irony meter breaking...
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nick205
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| posted on 14/8/07 at 02:04 PM |
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Can you not adjust your ride height via the shock absorbers?
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redeye
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| posted on 14/8/07 at 02:14 PM |
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I had 15" tsws on and changed them for 17" tsws and have gained an extra inch
so yes...like chrsgrain said......jus depends on wat profile tyre u put on them.
cheers
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gottabedone
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| posted on 14/8/07 at 02:32 PM |
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raising the series of the tyre from 40-50 or 50-60 on the same size wheel will increase the rolling radius. This generally gives a softer ride but
your speedo will need re-calibrating.
for example:
185/60/15 tyres have the same rolling radius as 215/40/17
hope it helps
Steve
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britishtrident
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| posted on 14/8/07 at 07:01 PM |
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I can understand the current fad for over size rim diameters.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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JoelP
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| posted on 14/8/07 at 07:09 PM |
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bigger wheels will definately raise the car but you should spend a minute pondering why its too low in the first place. Very likely you have wrong
length shocks! The lower arm should be roughly horizontal at rest (actually a line between the lower pivots, but lets not be fussy  ).
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John.Taylor
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| posted on 14/8/07 at 09:07 PM |
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Everybody tried to talk me into 15" with higher profile tyres as they don't tend to break away as violently, but I went for 17"
wheels with 40 profile for road use. I'll be getting some 13" Compromotive CXR's with Toyo 888's for track days.
With higher section tyres there is more give in the side wall so the tyre starts to slip wide, telling you to back off the gas. With lower section
tyres there is less give in the side wall so there is less slip and the breakaway is more sudden and hard to catch.
I've been to Oulton Park a lot and watched oads of different Sevens go around the rallycross track when it's been wetted down for
drifting. Anything with 13" wheels seems to be ok to catch whereas the 15" cars are very edgy and spin a lot. The 17" cars just
can't drift, they seem to either understeer if too light with the gas or pirouette if gassed to hard, there doesn't seem to be a point
where they will alow you to catch a slide.
Also, Alfa 75's are pants for drifting but F-reg BMW 318is seem to be a doddle.
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