daniel mason
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| posted on 30/8/13 at 08:13 PM |
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anyone know info on radical clubsport tyre sizes?
am after some info regarding tyre sizes on the radical but struggling for a definate answer. im a novice on slick tyres and not really sure how
different a crossply and a radial slick are? but on the radical,the set up changes massively and require dirrerent wishbones etc!
my current set up is as follows, 3 x full sets of 6" front 8" rear wheels. 1x full set of dunlop wets (not too fussed about these) and 3x
full sets of dunlop 160 wide fronts 170 wide rears. (obviously 2x160 and 2x170 as spares)
as i said earlier im no expert but do these tyres seem a bit narrow? especially a 170 rear! id have thought 200+ on a car like this.
i dont want to overtyre the car but was thinking of putting 2 of the current 170 rear tyres on 2 of the 6" front rims. and putting something
wider on the rear of one set to make comparissons? keeping the other set the same!
what do you guys think?
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minitici
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| posted on 30/8/13 at 08:28 PM |
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Depends on what use your Clubsport is going to be put.
Circuit racing, track days or sprints/hillclimbs?
Your narrow wheels would probably be fine for hard circuit tyres.
On Angus' Clubsport we fitted 8" & 10" rims with 7.2 & 9" crossply Avon Slicks for hillclimbs and sprints.
We had to modify the front of the sidepods to clear the 8" rims on the front and we also fitted spacers & spats on the rear
(mainly due to the offset of the 10" rims we got).
We originally used the 6" & 8" rims with narrow tyres but the fronts got fried even when we went to A15 compound.
Correct corner weighting set-up helped the front tyres a bit but going up to 8" was the best solution.
To get radials to work, a lot more camber is needed and as you know, the original Clubsport wishbones don't have enough adjustment to get the
required negative camber.
When I first got the Clubsport it had hard circuit Dunlop slicks which did not inspire confidence on short sprints (just about starting to grip after
3 laps).
Your Clubsport looks like a very early one (low mounted forward stays) what is the year/chassis number.
I think Angus' is chassis no.6 from 1998.
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daniel mason
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| posted on 30/8/13 at 08:36 PM |
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mines a 1998 also! ideally id like to stick with the dunlops as i have 16 tyres suited to this setup but a couple of larger rears may be ok for one
set!
btw. how did angus's car go? and thanks
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minitici
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| posted on 31/8/13 at 07:39 AM |
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Angus' Clubsport went pretty well with the original ZZR1100 but now goes even better after I fitted a ZX14R motor!
Only other mods done was the fitting of the wider wheels/tyres, Protech shocks and lighter springs, removal of rear ant-roll bar, and the fitting of
the rear undertray and a tray at the front plus a pair of front dive planes.
Still runs the ancient twin pot Wilwood/Radical calipers, vented discs on the front and solid discs on the rear.
Not too much of a problem for hills & sprints but probably not good for racing or trackdays.
I think he is currently lying second in the Service Hydraulics Speed Championship and he has won the
Northern Speed Championship and the Highland Speed Championship a couple of times.
[Edited on 31/8/13 by minitici]
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zilspeed
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| posted on 31/8/13 at 09:19 AM |
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He suits the Jeffrey better, now he's getting older...
Runs away really fast !
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minitici
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| posted on 31/8/13 at 11:18 AM |
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quote:
Originally posted by zilspeed
He suits the Jeffrey better, now he's getting older...
Runs away really fast !
Angus was enjoying his hillclimbing in the Jeffrey at Forrestburn last weekend - he manage a quite respectful 56 second last run.
He will be out in the Jeffrey again at the Bo'ness Revival Hillclimb on 7/8 September.
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RK
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| posted on 31/8/13 at 02:24 PM |
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http://www.pistonheads.com/gassing/topic.asp?h=3&t=792761&d=0&nmt=
what does Radical say?
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daniel mason
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| posted on 31/8/13 at 02:46 PM |
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depends really. the crossply set up would be better as the car can use circuit racing or supersoft hillclimb tyres on the same setup. but the dunlop
radials mean there is no compound for sprinting as the avons are much much softer for uk conditions.
the downside to the crossplys is the car requires new wishbones to get enough camber adjustment,meaning a full geo setup, and 3 x new sets of tyres,
4x wets,4x circuit and 4x hillclimb slicks
at the moment i have 4x dunlop wets on rims, 8x dunlop slicks on rims and 4x spare slicks so seems a shame to get rid of all these! plus i cant really
afford to do all the mods to go crossply
i may just buy a couple of wider dunlops and stick to trackdays until next year when i can afford to make adjustments!
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CNHSS1
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| posted on 31/8/13 at 04:52 PM |
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Not familiar with radical wishbones but why do yiu need new wishbones? Generally hillclimb crospplies need near zero toe and tiny static camber,
usually .5-.75 deg front and zero to .5 rear. Does the stock setup not allow for that?
"Racing is life, everything else, before or after, is just waiting"---Steve McQueen
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