New wheels for a 1600M
Discussion
I'm using 15" Revolutions on my 72 1600M with spacers and longer tube nuts,they do split rims,but at a price.My vixen is on Compomotive ML's,again 15"s,readily available TR6 fit.Not sure of the options in 14" but you don't really need wider than 6" rims or tyres too wide or the car will tramline horribly.
timelord said:
I'm using 15" Revolutions on my 72 1600M with spacers and longer tube nuts,they do split rims,but at a price.My vixen is on Compomotive ML's,again 15"s,readily available TR6 fit.Not sure of the options in 14" but you don't really need wider than 6" rims or tyres too wide or the car will tramline horribly.
Thanks - I'll do some investigating.
timelord said:
I'm using 15" Revolutions on my 72 1600M with spacers and longer tube nuts,they do split rims,but at a price.My vixen is on Compomotive ML's,again 15"s,readily available TR6 fit.Not sure of the options in 14" but you don't really need wider than 6" rims or tyres too wide or the car will tramline horribly.
I've done some investigation and would like to go to 15" wheels using 195/60 to keep the same overall tyre circumference. Are your 15" MLs standard TR6 size or were they modified for offset, etc.
Cheers,
Ian
sybaseian said:
I've done some investigation and would like to go to 15" wheels using 195/60 to keep the same overall tyre circumference. Are your 15" MLs standard TR6 size or were they modified for offset, etc.
The original rolling circumference was 654mm and the 195/60/15 tyre is 612mm or 40mm undersize or well out of tolerence.
JR said:
I've done some investigation and would like to go to 15" wheels using 195/60 to keep the same overall tyre circumference. Are your 15" MLs standard TR6 size or were they modified for offset, etc.
The original rolling circumference was 654mm and the 195/60/15 tyre is 612mm or 40mm undersize or well out of tolerence.
Thanks JR - the current tyres on mine are 215/60 R14 which are 614mm. The speedo reading at 70mph is very acurate - 69mph actual via gps
sybaseian said:
Thanks JR - the current tyres on mine are 215/60 R14 which are 614mm. The speedo reading at 70mph is very acurate - 69mph actual via gps
That's very odd. The suspension arms will be operating at the wrong angles. The tyre size usually used on the M for 15" aftermarket wheels is 225/60/15 although some use the undersized 225/55/15. If you are changing wheels it makes tyre choice and good quality tyre availability a lot easier if you go for 16" wheels.
JR said:
Thanks JR - the current tyres on mine are 215/60 R14 which are 614mm. The speedo reading at 70mph is very acurate - 69mph actual via gps
That's very odd. The suspension arms will be operating at the wrong angles. The tyre size usually used on the M for 15" aftermarket wheels is 225/60/15 although some use the undersized 225/55/15. If you are changing wheels it makes tyre choice and good quality tyre availability a lot easier if you go for 16" wheels.
Not really odd - the car has been heavily modified by the previous owner and the new speedo has obvisously been calibrated with the current wheels and new suspension setup. I might have to give him a call and find out how easy it would be to re-calibrate the speedo for correct circumference wheels.
If its an easy job, I'll probably change the wheels and tyres to 225/55 R16 @ 651mm but if its not I'll change to 205/50 R16 @ 613mm.
Either way, Toyo Proxes T1-R are looking tasty.....
sybaseian said:
If its an easy job, I'll probably change the wheels and tyres to 225/55 R16 @ 651mm but if its not I'll change to 205/50 R16 @ 613mm.
Either way, Toyo Proxes T1-R are looking tasty.....
Sounds like you have an interesting car. FWIW most sprinters and track day cars that I have seen on 16" use 205/55/16. They are a very common tyre size used on Golf GTis etc and as such are very cheap for top quality rubber. T1-R good but also consider G/Y F1 GSD3s.
sybaseian
When sprinting my M trackday car I used 205/55ZR15's on the front and 225/50/ZR15's on the rear. I had 7" rims on the front and 9" on the rear, Revolution 5 spokes.
It made the overall rolling circimference slightly smaller (better for acceleration but hit the top speed a bit)
Handled (with Exactly TVR Leda setup) amazingly. You could really lean on the car once you'd got you committment levels up! (over 100mph-genuine through the Cramer Curves at Donington!!!!)
Hope that helps
davidy
When sprinting my M trackday car I used 205/55ZR15's on the front and 225/50/ZR15's on the rear. I had 7" rims on the front and 9" on the rear, Revolution 5 spokes.
It made the overall rolling circimference slightly smaller (better for acceleration but hit the top speed a bit)
Handled (with Exactly TVR Leda setup) amazingly. You could really lean on the car once you'd got you committment levels up! (over 100mph-genuine through the Cramer Curves at Donington!!!!)
Hope that helps
davidy
JR said:
Sounds like you have an interesting car.
www.ian-smillie.com/gallery/TVR1600M
You could say that....
>> Edited by sybaseian on Friday 30th September 17:14
davidy said:
sybaseian
When sprinting my M trackday car I used 205/55ZR15's on the front and 225/50/ZR15's on the rear. I had 7" rims on the front and 9" on the rear, Revolution 5 spokes.
It made the overall rolling circimference slightly smaller (better for acceleration but hit the top speed a bit)
Handled (with Exactly TVR Leda setup) amazingly. You could really lean on the car once you'd got you committment levels up! (over 100mph-genuine through the Cramer Curves at Donington!!!!)
Hope that helps
davidy
Thanks davidy - I'm getting confused now. The 205/55ZR15's have a diameter of 606.5mm and I'm currently running 614mm, but JR said that the original was 40mm larger. I'm assuming that the original was 185/80R14 @ 651mm.
I'd like to know for definate what the original tyre size was with the TSlots.
The Original was 185HR14 which corresponds to 185/82 or 185/80
Most Turbo Cars were originally fitted with 195/70's by the factory. I used this as all my benchmark calculations.
You also need to remember that low profile tyres have much stiffer sidewalls so give handling benefits, but only when fitted to the correct size rims, to narrow a rim and they will move about terribly.
Personally I would look at the problem another way, getting sticky rubber is the problem with the 14" wheel, so I would find the brand of tyre that you want to use and then look at the 15 and 16 wheel options in association with that tyre size availability. You may find you have to drop profiles to get the type of rubber you want (this is what I did). You can then select the right wheel size and off you go.
A few words of warning:-
M series cars on 195/70 and 185HR rubber are very progressive, the lighterweight 1600M even more so and are recoverable at very weird angles, I know I've been there and scared many passengers! When you put modern rubber on the breakway point is much higher and is much harder to catch, it can be very sudden. I used to run a fair amount of negative camber on the rear and this made the car very neutral up to a point, when it would suddenly let go! (The negative camber helped my rear arch clearance problems, the neutrality would only remain if you were committed with the throttle, lift off spin, too much spin, but great when you got it right!)
Modern low profile sticky rubber will also put much more stresses on the drive chain and suspension, you may end up cracking wishbones and rear wheel bearings become a consumable item!
Buy the way my car had approx 3 inches of ground clearance!!! Big Bore Exhaust plus the suspension mods and the wheels and tyres didn't leave much!
davidy
Most Turbo Cars were originally fitted with 195/70's by the factory. I used this as all my benchmark calculations.
You also need to remember that low profile tyres have much stiffer sidewalls so give handling benefits, but only when fitted to the correct size rims, to narrow a rim and they will move about terribly.
Personally I would look at the problem another way, getting sticky rubber is the problem with the 14" wheel, so I would find the brand of tyre that you want to use and then look at the 15 and 16 wheel options in association with that tyre size availability. You may find you have to drop profiles to get the type of rubber you want (this is what I did). You can then select the right wheel size and off you go.
A few words of warning:-
M series cars on 195/70 and 185HR rubber are very progressive, the lighterweight 1600M even more so and are recoverable at very weird angles, I know I've been there and scared many passengers! When you put modern rubber on the breakway point is much higher and is much harder to catch, it can be very sudden. I used to run a fair amount of negative camber on the rear and this made the car very neutral up to a point, when it would suddenly let go! (The negative camber helped my rear arch clearance problems, the neutrality would only remain if you were committed with the throttle, lift off spin, too much spin, but great when you got it right!)
Modern low profile sticky rubber will also put much more stresses on the drive chain and suspension, you may end up cracking wishbones and rear wheel bearings become a consumable item!
Buy the way my car had approx 3 inches of ground clearance!!! Big Bore Exhaust plus the suspension mods and the wheels and tyres didn't leave much!
davidy
www.rimmerbros.co.uk/cgi-bin/rimmer?findpart&PartID=RR13446X15&Page=triumph/tr6/wheels
The wheels are standard fit for a TR6 - I'm thinking of getting some 195/60 VR15 if there are no problems with the offset, etc.
The wheels are standard fit for a TR6 - I'm thinking of getting some 195/60 VR15 if there are no problems with the offset, etc.
davidy said:
A few words of warning:-
M series cars on 195/70 and 185HR rubber are very progressive, the lighterweight 1600M even more so and are recoverable at very weird angles, I know I've been there and scared many passengers! When you put modern rubber on the breakway point is much higher and is much harder to catch, it can be very sudden. I used to run a fair amount of negative camber on the rear and this made the car very neutral up to a point, when it would suddenly let go! (The negative camber helped my rear arch clearance problems, the neutrality would only remain if you were committed with the throttle, lift off spin, too much spin, but great when you got it right!)
davidy
I'm starting to realise how good the set up is on the M. The handling is much more neutral on the limit than the Chimaera. A friend who owns the 63 Le Mans Grantura told me that the chassis and handling of the M Series is sublime - now I believe him....
I'm not too bothered about the increased grip with modern rubber as I'm thinking of using the car for drifting - just need more choice in the future as the current size is very limiting.
sybaseian said:
The wheels are standard fit for a TR6 - I'm thinking of getting some 195/60 VR15 if there are no problems with the offset, etc.
Nice car S but I think that you've had a blip there. No one makes UHP rubber in that size. This was the critical phrase
davidy said:
Personally I would look at the problem another way, getting sticky rubber is the problem with the 14" wheel, so I would find the brand of tyre that you want to use and then look at the 15 and 16 wheel options in association with that tyre size availability. You may find you have to drop profiles to get the type of rubber you want (this is what I did). You can then select the right wheel size and off you go.
The 205/55 front and 225/50or55 rear work better on 16" dia. Or even a 245/45, lol
JR
The reason for using 15's and lower profile was 1) I got them a good price 2) I wanted to improve the acceleration for Sprinting/track days and 3) I didn't have thetime iof inclanation to mod the arches!!
sybaseian
With a lighter engine upfront you are right about the handling (the heavier 3 litre engine tends to understeer a bit unless driven in a committed way!)
If you thibk a 1600M is sweet try a Vixen S2!!!
davidy
The reason for using 15's and lower profile was 1) I got them a good price 2) I wanted to improve the acceleration for Sprinting/track days and 3) I didn't have thetime iof inclanation to mod the arches!!
sybaseian
With a lighter engine upfront you are right about the handling (the heavier 3 litre engine tends to understeer a bit unless driven in a committed way!)
If you thibk a 1600M is sweet try a Vixen S2!!!
davidy
Compomotive ML's are a TR6 fitment and not really suitable for the TVR. the tyre wall comes far too close to the bottom pin on the upright (on a vixen anyway) you can fit a 5mm spacer to make things better but it is still marginal on a 6" wheel running a 195 section tyre.
Talk to tech del (minilite) and he can cast you a proper minilite for the same price as the ML. Your other option is to fabricate some new lower wishbones and piggyback the lower damper mount. this then allows you to go much wider with big arches??
IMHO Minilite are a better finished wheel than the ml
also there has been talk of some very wide tyres on wheels here?? A 6" Rim should not have anything bigger than a 195 section tyre. 205 will fit but the tyre will roll on the rim and result in wobbly handling. Aim for the narrowest section tyre on the widest rim and you won't go far wrong.
For every day use a 195 / 65 / 15 on a 62 rim will give a very good balance of comfort against handling. if speed is everything come down to a 60 profile and stick with 195. you may however run into clearance issues if using the TR6 ML
Neil..
>> Edited by heightswitch on Thursday 29th September 09:29
Talk to tech del (minilite) and he can cast you a proper minilite for the same price as the ML. Your other option is to fabricate some new lower wishbones and piggyback the lower damper mount. this then allows you to go much wider with big arches??
IMHO Minilite are a better finished wheel than the ml
also there has been talk of some very wide tyres on wheels here?? A 6" Rim should not have anything bigger than a 195 section tyre. 205 will fit but the tyre will roll on the rim and result in wobbly handling. Aim for the narrowest section tyre on the widest rim and you won't go far wrong.
For every day use a 195 / 65 / 15 on a 62 rim will give a very good balance of comfort against handling. if speed is everything come down to a 60 profile and stick with 195. you may however run into clearance issues if using the TR6 ML
Neil..
>> Edited by heightswitch on Thursday 29th September 09:29
Neil you are right about tyre width and a very valid point. My 205s were on 7" and my 225's on 9"!!!! however since sybaseian wants to drift he definitely should not go for a wide tyre (especially on a narrow rim!) I would have thought given the power of his car a 195 is the most that he wants to go.
davidy
davidy
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