WANTED OLD WHEELS
Discussion
Chilliman said:
SILICONEKID340HP said:
Im after a rear set ,not bothered about condition but with no damage ..I want a set to stick in the boot for my R888`s
Im wondering if standard Imolas would not suit there purpose to fit 245`s
Funny that, I'm after a spare rear set too Im wondering if standard Imolas would not suit there purpose to fit 245`s
Im wonder which size would work best 16" to 18" and i may even get a larger diameter tyre (higher wall height) just to change the ratio a bit.
Derek which wheel size works the best..Im thinking small wheel with a large wall height.
Edited by SILICONEKID340HP on Monday 23 January 19:31
Chilliman said:
Big fat spongy tyres 
Presumably we're looking for maximum contact area with the tarmac.... Would I be correct that a higher wall tyre is likely to lose less road contact when it starts 'bouncing'.... compared to a low profile tyre on a big diameter wheel...
Yes you could even go 15" think the tyres are even cheaper..low profile tyres seem to be more expensive.. Presumably we're looking for maximum contact area with the tarmac.... Would I be correct that a higher wall tyre is likely to lose less road contact when it starts 'bouncing'.... compared to a low profile tyre on a big diameter wheel...SILICONEKID340HP said:
Chilliman said:
Big fat spongy tyres Presumably we're looking for maximum contact area with the tarmac.... Would I be correct that a higher wall tyre is likely to lose less road contact when it starts 'bouncing'.... compared to a low profile tyre on a big diameter wheel...
Yes you could even go 15" think the tyres are even cheaper..low profile tyres seem to be more expensive.. Presumably we're looking for maximum contact area with the tarmac.... Would I be correct that a higher wall tyre is likely to lose less road contact when it starts 'bouncing'.... compared to a low profile tyre on a big diameter wheel...Chilliman said:
SILICONEKID340HP said:
Chilliman said:
Big fat spongy tyres Presumably we're looking for maximum contact area with the tarmac.... Would I be correct that a higher wall tyre is likely to lose less road contact when it starts 'bouncing'.... compared to a low profile tyre on a big diameter wheel...
Yes you could even go 15" think the tyres are even cheaper..low profile tyres seem to be more expensive.. Presumably we're looking for maximum contact area with the tarmac.... Would I be correct that a higher wall tyre is likely to lose less road contact when it starts 'bouncing'.... compared to a low profile tyre on a big diameter wheel...dbv8 said:
Ive squeezed 255/50's on a pair of 16" Imolas. They did rub on the inner arches a little on the old suspension. A bit of fibreglass work on the inner arches and now on Nitrons i dont have a problem.
I think a wider wheel with a better offset would help centralise the tyre better.
so the larger tyre should give different higher gears...better for the 1/4 mile run..less spinning and will not run out of steam at the end.. Maybe a 25 offset would be better,bring the tyre out .I think a wider wheel with a better offset would help centralise the tyre better.
SILICONEKID340HP said:
so the larger tyre should give different higher gears...better for the 1/4 mile run..less spinning and will not run out of steam at the end.. Maybe a 25 offset would be better,bring the tyre out .
The large tyre on the left is the smallest diameter MT do at that size for a 16" wheel. The tyres were bought and made to fit. Another benefit to the MTs is they have a soft sidewall that allow the tyre to squat on launch and create a bigger footprint. The R888s have a stiff sidewall that doesnt allow for the sqat effect so much but is much nicer and safer to drive home on.
Chilliman said:
Derek, bit of a big ask, but any idea what difference the larger diameter MT's would make in terms of mph per 1000rpm in 3rd ??
Road tyres are 245/35/18 with a rolling rad of 6.48 feet and the MTs are 255/50/16 with 6.82 feet.With a 3.45:1 diff this equates to 21.4 mph per 1000 rpm in 4th on the Toyos and 22.5 mph on the MTs.
3rd is 1.323:1 therefore = 16.1 and 17 respectively.
So you can hit 110.5 at 6500 rpm in 3rd on the bigger MTs but only 104.6 on the T1Rs.
HTH
I change gear about 5800 in 3rd which is just beyond the 1/8 so i run the 2nd 1/8 'lazily' in 4th to 125+ terminal.
Edited by dbv8 on Tuesday 24th January 07:07
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