Tyres?
Author
Discussion

7litrebig

Original Poster:

459 posts

234 months

Wednesday 29th February 2012
quotequote all
Ok guys, need some help having read all the prior tyre posts, I don't see anything very recent on this.

Tyres (Goodyears) are getting on a bit and I reckon a few road miles and my first track day will see the rears needing replacement. Mostly road use, couple of track days per year, and resonable wet performance.

So, What are the current options? Type, Prices and where to buy?

Oh, and also - has anyone changed rears only so they run different brand front/rear or are you all taking purist approach of full set of boots only will do?

Cheers
Paul


V8Dom

3,547 posts

225 months

Wednesday 29th February 2012
quotequote all
hi

R888 on the rear. great tyre in the summer wet or dry, in winter they dont get any heat into them and wheel spin alot.

Goodyear F1 on the fronts, good all round tyre which workwell in summer and winter but. lack very important front end grip when cold... I will be replacong these soon and poss putting Kumo s on. as they dont wear as fast as a rear fitment yet still give decent grip.

I had Goodyears all round before, very good car balance but wheel spun 1-3 gears

Dom

F.C.

3,899 posts

231 months

Wednesday 29th February 2012
quotequote all
Pirelli corsas.

Pricey though!!

Graham-P

1,548 posts

269 months

Thursday 1st March 2012
quotequote all
Michelin PS2, meant to give good all round grip, if you can get hold of them.

Graham

shithotfast

1,134 posts

291 months

Friday 2nd March 2012
quotequote all
I got the Kumhos for the first time after goodyears. medium compound.

I have found that COLD they are like driving on ICE. Hot they are like bluetak and great. But hardly any rtead from new!

Storer

5,024 posts

238 months

Friday 2nd March 2012
quotequote all
I had Toyo's on my old rims before the strip down and they were a good road tyre.

They didn't like the cold too much and didn't offer great grip on track but were progressive and predictable.

The rebuilt car has now got Khumo track tyres (very little tread) which I hope will be good on the road in the dry. I don't plan to do a lot of wet weather driving!!


Paul

khm

340 posts

224 months

Friday 2nd March 2012
quotequote all
got r888's all round for mainly track days over road runs, ended up going backwards at donnington in the wet, am now buying another set of rims for road tyres with a decent tread pattern for wet and running the 888's until they are slicks

V8Dom

3,547 posts

225 months

Saturday 3rd March 2012
quotequote all
khm said:
got r888's all round for mainly track days over road runs, ended up going backwards at donnington in the wet, am now buying another set of rims for road tyres with a decent tread pattern for wet and running the 888's until they are slicks
R888 on the fronts? what size? and clearance issues?

my standard fronts are so so close

Dom

khm

340 posts

224 months

Monday 5th March 2012
quotequote all
V8Dom said:
R888 on the fronts? what size? and clearance issues?

my standard fronts are so so close

Dom
different car ( Pulse GT1 ), 295 30 18 front 335 30 18 rear, lots of quaplanning ?? ...... YES !!

7litrebig

Original Poster:

459 posts

234 months

Friday 23rd March 2012
quotequote all

Having talked to the factory and looked at all of the comments I see it this way...

My time is 90% road use (maybe a couple of trackdays per year) - must have good all round performance (wet included)... So it's down to these:

Pirelli PZ ROSSO
Michelin PS2

Anyone running the Pirelli's? Also where to buy?

Ult-Jim

624 posts

213 months

Friday 28th December 2012
quotequote all
Hi 7litrebigbyebye, I made the decision for you and went for the mitchelin PS2's with Factory suspension and bump steer set up - for road use for now very happy!

UltimaCH

3,181 posts

212 months

Friday 28th December 2012
quotequote all
I would go for the newer PS3, but I havn't checked if the sizes are available. I have them on my C43 and very happy with the overall performance.

ROWDYRENAULT

1,294 posts

237 months

Friday 28th December 2012
quotequote all
Michelin to me are the best road tire for the Ultima. I would stop and consider a second set of rims and slicks for track days to avoid running R rated tires for daily use. Yes its not a cheap option, but an accident on cold tires or in the wet on not well suited R rated whatevers is going to be exspensive and perhaps worst. Just my thoughts, Lee

Storer

5,024 posts

238 months

Friday 28th December 2012
quotequote all
I have a set of Kumho's for track use and Pirelli's for road use. Each on their own set of rims.

In the dry, warm weather the Kumho's are brilliant with enormous grip. However, in cold or wet conditions you need extreme caution and if you hit standing water you are a passenger.

Th Pirelli's do not have the same level of ultimate grip but at least you stand some chance if you hit a puddle. I suspect they will do quite a few miles too.

The Kumho would probably only do a couple of track days before they are illegal for road use.


Paul

MarkWebb

983 posts

240 months

Saturday 29th December 2012
quotequote all
I am running P Zero Rosso and am quite happy all round but they seem difficult to come by. Any info on sources much appreciated.

karl c

125 posts

167 months

Saturday 29th December 2012
quotequote all
Ult-Jim said:
Hi 7litrebigbyebye, I made the decision for you and went for the mitchelin PS2's with Factory suspension and bump steer set up - for road use for now very happy!
Hi Jim, what did you do to eliminate the bump steer? this is something that my car is suffering from on the road and can take you my surprise,i was thinking of having the suspension set up in the new year but would be interested to hear how you set yours up and what the results were.

Cheers Karl.

F.C.

3,899 posts

231 months

Saturday 29th December 2012
quotequote all
MarkWebb said:
I am running P Zero Rosso and am quite happy all round but they seem difficult to come by. Any info on sources much appreciated.
Southall discount tyres, got them for next day fitment and were the cheapest quote by a country mile of all the places I tried.

Ult-Jim

624 posts

213 months

Saturday 29th December 2012
quotequote all
karl c said:
Hi Jim, what did you do to eliminate the bump steer? this is something that my car is suffering from on the road and can take you my surprise,i was thinking of having the suspension set up in the new year but would be interested to hear how you set yours up and what the results were.

Cheers Karl.
Hi Karl,

The Ultima Factory did the work for me along with a wheel alignment check, and a comprehensive all round safety / build check. I wanted to start off with a proven Factory recommended spec and set up to have confidence in driving the car. I'm use to powerful Caterhams but this is something else. I believe there is a lot of trial and error with small adjustments to the height of the steering rack and therefore expect this work to take at least a few hours to over half a day to get it correct and therefore labour costs do rack up. The car is still new to me and have only driven to and from the Factory. All I can say is I felt more confident on the return journey and the car seemed more planted on uneven road surfaces.

karl c

125 posts

167 months

Saturday 29th December 2012
quotequote all
Thanks for the info jim, sounds like money well spent, i will enquire locally first as im down in kent but guess there,s no one that know,s ultima,s better than the factory.

Thanks again Karl.

Steve_D

13,801 posts

281 months

Saturday 29th December 2012
quotequote all
Send me a PM and I will send back a word doc on how to do the bump steer setup plus a spread sheet to record your readings.

Steve