185/70/14's
- Thread starter garethp6
- Start date
I've no experience with non standard sizes on either standard steel wheels or on Rostyles. From the point of view of rim widths, I'd have thought the steels would stand 195's. But what rim width are the Rostyles - weren't they originally intended for 2000's with 165's? In which case 195's might have a job staying on the wheel!
As far as fouling goes, the steels look to me to be set further into the car than the ideal ET, so it's possible the fouling point could be the top link rather than the more polular D post! I've not had the opportunity to examine 14" Rostyles closely for clearances , so couldn't comment on them.
As far as diameter goes, a perfect match would be 195/75, but 195/70 isn't too bad - 3.5% smaller, so slightly undergeared.
Chris
As far as fouling goes, the steels look to me to be set further into the car than the ideal ET, so it's possible the fouling point could be the top link rather than the more polular D post! I've not had the opportunity to examine 14" Rostyles closely for clearances , so couldn't comment on them.
As far as diameter goes, a perfect match would be 195/75, but 195/70 isn't too bad - 3.5% smaller, so slightly undergeared.
Chris
garethp6
Active Member
well i wanna keep with the rostyles on mine i wanna keep mine a bit lower then the standard so thats y i have been thinking of the 185/70/14 as my friend got them on his v8 and has no problems but if it was a bit higher then the tyres a bit weider i would be much happy with does any 1 have rostyles with 195/70/14's
Hello Gareth,
I run 205/70 HR 14 on my P6 Rostyles without any scrubbing, but having said that it is most certainly closer on the o/s. You can always ask the tyre centre to trial fit a wider tyre and if it scrubs opt for a slightly narrower version.
If you prefer the sound of 195/70 as it has less chance of scrubbing combined with a lower rolling radius, then away you go. Just as a side issue, if your speedo is already reading incorrectly, why don't you have it repaired?
Ron.
I run 205/70 HR 14 on my P6 Rostyles without any scrubbing, but having said that it is most certainly closer on the o/s. You can always ask the tyre centre to trial fit a wider tyre and if it scrubs opt for a slightly narrower version.
If you prefer the sound of 195/70 as it has less chance of scrubbing combined with a lower rolling radius, then away you go. Just as a side issue, if your speedo is already reading incorrectly, why don't you have it repaired?
Ron.
Demetris
Well-Known Member
The 185/70/14 are actually a very good match for the 165/14 fitted on 4 cyl cars, therefore i have them fitted on minilights in my TC.
There is plenty of choice in this size, i opted for Michelins, expensive, but worth it IMHO.
In comparison with the standard V8 tyres rolling radius, they will lower your final drive ratio a little, making your speedo overread a little.
As you have a 5 speed gearbox fitted, i wouldn't worry about affecting performance and economy.
Demetris
There is plenty of choice in this size, i opted for Michelins, expensive, but worth it IMHO.
In comparison with the standard V8 tyres rolling radius, they will lower your final drive ratio a little, making your speedo overread a little.
As you have a 5 speed gearbox fitted, i wouldn't worry about affecting performance and economy.
Demetris
soupdragon
New Member
this should be of help to you all...
http://www.alloywheels.com/tyrecalc.asp
perhaps add the link somewhere on the site for other memebers??
http://www.alloywheels.com/tyrecalc.asp
perhaps add the link somewhere on the site for other memebers??
redrover
Well-Known Member
Hi Gareth,
I have 185/70/14's on standard steel wheels fitted to my 2000, and they're spot on.
As my car originally had 185/60's, the wheels looked tiny in the arches, so I opted for something bigger that wasn't a truck tyre! The 185/70s look like standard in the arches- bit smaller maybe but hardly noticeable.
Take a look at this calculator, it's a bit more advanced than some of the others because it takes your diff and gear box ratios into consideration to work out your actual road speed at any given rpm.
http://www.car-videos.net/tools/speedrpm.asp
For anyone with a manual 4cyl car, 185/70/14's are perfect as 30, 40, 50, 60 and 70 mph corresponds directly with 1500, 2000, 2500, 3000 and 3500 rpm in top gear. And as the rev needle is much steadier than the cable driven speedo, you're guaranteed to know your exact speed past those dastardly piggy-bank cameras!!
Quick ref of 4 cylinder cars are:
Final Drive: 3.54
1: 12.83
2: 7.55
3: 4.92
4: 3.54
You have to input a figure for 5th too, as it doesn't understand that there are 4-speed cars out there. Just ignore the last column when the results come out.
Presumably, the 3500S figures are the same as above but with 3.07 for the final drive.
Michael
I have 185/70/14's on standard steel wheels fitted to my 2000, and they're spot on.
As my car originally had 185/60's, the wheels looked tiny in the arches, so I opted for something bigger that wasn't a truck tyre! The 185/70s look like standard in the arches- bit smaller maybe but hardly noticeable.
Take a look at this calculator, it's a bit more advanced than some of the others because it takes your diff and gear box ratios into consideration to work out your actual road speed at any given rpm.
http://www.car-videos.net/tools/speedrpm.asp
For anyone with a manual 4cyl car, 185/70/14's are perfect as 30, 40, 50, 60 and 70 mph corresponds directly with 1500, 2000, 2500, 3000 and 3500 rpm in top gear. And as the rev needle is much steadier than the cable driven speedo, you're guaranteed to know your exact speed past those dastardly piggy-bank cameras!!
Quick ref of 4 cylinder cars are:
Final Drive: 3.54
1: 12.83
2: 7.55
3: 4.92
4: 3.54
You have to input a figure for 5th too, as it doesn't understand that there are 4-speed cars out there. Just ignore the last column when the results come out.
Presumably, the 3500S figures are the same as above but with 3.07 for the final drive.
Michael