2000 GTV Bertone
Author
Discussion

reeventu

Original Poster:

73 posts

209 months

Saturday 23rd August 2008
quotequote all
I have a 1973 GTV and need some new tyres. The original size was 165HR14 but the car now has 175HR 14.

Can anyone recommend a reasonably priced tyre that would best suit the car.

I see Michelin have re introduced the XAS BUT the cost is over £100 per corner.

I suspect a more modern tyre would give better results bt what ?

help please

velocemitch

4,019 posts

241 months

Monday 25th August 2008
quotequote all
175/14-80's would be fine for your GTV, you could go slightly wider too I use 185/14-80's on my 1750 GTV.
Many people run lower profiles too, but personally I wouldn't go below 70. If you have a look on Blackcircles.com you should find some decent choices in these profiles.
I'm using Nokian NRTC2's, though aren't easy to get hold of. I'm likely to switch to Yokohama's next.

reeventu

Original Poster:

73 posts

209 months

Monday 25th August 2008
quotequote all
thanks for advice.

do you know if there is a suitable 80 profile Yokohama available ?

Also is the OD similar to the original 165 radial , just thinking about speedo accuract and gearing?

Edited by reeventu on Monday 25th August 21:06

velocemitch

4,019 posts

241 months

Monday 25th August 2008
quotequote all
80's might be a bit of a problem with Yoko's, that profile these days ends to be for vans, so they aren't exactly a 'sporting' tread pattern. 70's seem to offer more choice. I'm stuck with 80's, as a use mine for Historic Rallying and it's part of the rules and regs.

I wouldn't worry too much about speedo accuracy, they aren't that good to begin with!.Gearing won't be a million miles out though, there is a website you can use for checking the rolling radius of differing profiles of tyre. Do a google search for 'wheel and tyre (tire??) bible' it should come up.

The Owners club forum has a lot of posts about Tyres on the Bertone's with lots of differing opinions. If you aren't a member it would be well worth joiningjust for the forum.

velocemitch

4,019 posts

241 months

Tuesday 26th August 2008
quotequote all
Must have been a bit confused last night!!.
70 Profile are about as high as I would go, I mentioned I had to use 80's but that's wrong the rules don't allow anything smaller than 70.
Many people use 65's and seem happy but personaly I think 185-70-14's are a good size with a reasonable range available.

reeventu

Original Poster:

73 posts

209 months

Tuesday 26th August 2008
quotequote all
Thanks all a great help.

the hunt will start for some 175 or 185 70's


reeventu

Original Poster:

73 posts

209 months

Friday 5th September 2008
quotequote all
velocemitch said:
Must have been a bit confused last night!!.
70 Profile are about as high as I would go, I mentioned I had to use 80's but that's wrong the rules don't allow anything smaller than 70.
Many people use 65's and seem happy but personaly I think 185-70-14's are a good size with a reasonable range available.
Ordered some falken 185 70 14's

These look fairly correct and not a bad price at £40 + VAT

What tyre pressures do you run at?

RicksAlfas

14,246 posts

265 months

Monday 8th September 2008
quotequote all
I've got 195/70/14s and run them at about 26'ish all round.

velocemitch

4,019 posts

241 months

Monday 8th September 2008
quotequote all
I used to run mine fairly low at about 24, but recently I've taken them up to 28 or 30 and prefer it that way.
Best thing is to experiment, but remember that a fair amount of the 'springing' in older cars was the tall side walls of the Tyres. Modern cars are design for low profiles so you need to run high pressures.

Not sure what Falkens are like so it would be good to get some feedback, Vriedesteins seem to be gathering a popular following at the moment.

reeventu

Original Poster:

73 posts

209 months

Tuesday 9th September 2008
quotequote all
velocemitch said:
I used to run mine fairly low at about 24, but recently I've taken them up to 28 or 30 and prefer it that way.
Best thing is to experiment, but remember that a fair amount of the 'springing' in older cars was the tall side walls of the Tyres. Modern cars are design for low profiles so you need to run high pressures.

Not sure what Falkens are like so it would be good to get some feedback, Vriedesteins seem to be gathering a popular following at the moment.
tried to get the Verdestein but not available in this size with a reasonable tread pattern.

I trust this tyre supplier as I have used him for some years with various cars and his advice has always been OK.

I have a temp gauge which I use on the track with the caterham so I will check to see what they run at and adjust accordingly, but good to have a starting point - thanks