Fiat Coupe Forum
- Founded by Kayjey & James Northam
- Funded by the Club for the benefit of all owners
Fiat Coupe Club UK
join the club
Fiat Coupe Forum
 
» Announced
    Posting images


» Related sites
    Main club site
    fiatcoupe.net


» External data
    owners listed
 
Who's Online Now
2 registered members (juleshh, 1 invisible), 283 guests, and 4 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums69
Topics113,543
Posts1,340,421
Members1,785
Most Online731
Jan 14th, 2020
Top Posters(All Time)
barnacle 33,520
stan 32,122
Theresa 23,294
PeteP 21,480
bockers 21,070
JimO 17,917
Nigel 17,366
Edinburgh 16,659
RSS Feeds
Club Events
Club Information
Track Events
Rolling Road/RWYB
Social Events
Non-UK Events
Coupé Related Chat
Coupé Spotting
Coupé News/Press
Buying/Selling Advice
Insuring a Coupé
Basic FAQ's
How to Guides
Forum Issues
Technical Problems
General Maintenance
Styling
Tuning
Handling
ICE and Alarm
Coupés for Sale
Coupés Wanted
Parts for Sale
Parts Wanted
Group Buys
Business Forum
Other Vehicles for Sale/Wanted
Other Items for Sale/Wanted
Haggling/Offers
Ebay links
Other Cars
Other Websites
General Chat
Previous Thread
Next Thread
Print Thread
Slick tyres for track. #1462317
08/12/2013 21:48
08/12/2013 21:48

D
dazs78
Unregistered
dazs78
Unregistered
D



Hi.

Does anyone know what size is required in slick tyres form, that fits the standard 205 50 16?

Slicks I have seen so far have very strange sizes to them.

Any advice would be great. It's about time some speed was picked up on track and slicks must be the way forward.

Re: Slick tyres for track. [Re: ] #1462490
09/12/2013 16:04
09/12/2013 16:04
Joined: Oct 2008
Posts: 6,783
In the coupe.
magooagain Offline
Club Member 259
magooagain  Offline
Club Member 259
Forum is my life

Joined: Oct 2008
Posts: 6,783
In the coupe.
A dedicated semi slick like a Toyo 888 for track days work very well.



Re: Slick tyres for track. [Re: ] #1462538
09/12/2013 19:51
09/12/2013 19:51

D
dazs78
Unregistered
dazs78
Unregistered
D



Hi mag.
Yes I am aware of the semi slicks like r888's but I'm looking to see what the size is when going to slicks.

For some reason the size measurements change when going to slicks and I have no idea what size I would need.

Thanks.
Darren.

Re: Slick tyres for track. [Re: ] #1462563
09/12/2013 22:08
09/12/2013 22:08
Joined: Oct 2008
Posts: 6,783
In the coupe.
magooagain Offline
Club Member 259
magooagain  Offline
Club Member 259
Forum is my life

Joined: Oct 2008
Posts: 6,783
In the coupe.
I have only ever seen one coupe on track with slicks and that was in a day time temperature of 40 odd in full sun in the middle of August in France.

The car had to be jacked up in the air as soon as it came into the pits,as not to mould a flat spot on the tyre.

I cant see slicks being practical on a coupe on a uk track day.



Re: Slick tyres for track. [Re: ] #1462578
10/12/2013 00:22
10/12/2013 00:22

D
dazs78
Unregistered
dazs78
Unregistered
D



They are cheap compared to semi slicks and an excuse to go faster...lol

Re: Slick tyres for track. [Re: ] #1462718
10/12/2013 20:03
10/12/2013 20:03

J
Jonny
Unregistered
Jonny
Unregistered
J




Re: Slick tyres for track. [Re: ] #1462814
11/12/2013 14:29
11/12/2013 14:29
Joined: Dec 2005
Posts: 2,821
Bath
F
Fishy_Dave Offline
I need some sleep
Fishy_Dave  Offline
I need some sleep
F

Joined: Dec 2005
Posts: 2,821
Bath
Just be very careful about oil starvation when using slicks. I know I've been out of the Coupe scene for sometime, and the standard baffles seem to do a good job but slicks will pull a higher g of course. I know a lot of cars (including Caterhams with wet sumps) experience issues in long corners like Gerrards at Mallory, resulting in buggered engines.
If the Coupes can cope and you keep an eye on the extra wear your bushes will encounter then cheap slicks are a great way of reducing lap times for minimal cost.


Corvette C6 (manual of course)
Re: Slick tyres for track. [Re: ] #1462930
11/12/2013 22:41
11/12/2013 22:41

D
dazs78
Unregistered
dazs78
Unregistered
D



Ahhh. I never thought about oil starvation with slicks. Is this an issue with the coupe?

Re: Slick tyres for track. [Re: ] #1463183
12/12/2013 23:44
12/12/2013 23:44

J
johnnybravoturbo
Unregistered
johnnybravoturbo
Unregistered
J



Originally Posted By: dazs78
Ahhh. I never thought about oil starvation with slicks. Is this an issue with the coupe?


If you brake hard the oil pressure guage can suggest the pressure is dropping due to oil surge.
But I've never seen mine drop on hard cornering.

The stock sump is very well baffled from production.

Re: Slick tyres for track. [Re: ] #1463215
13/12/2013 08:10
13/12/2013 08:10

D
dazs78
Unregistered
dazs78
Unregistered
D



Have u tried slicks jonny?

Re: Slick tyres for track. [Re: ] #1485217
26/04/2014 12:30
26/04/2014 12:30

D
dazs78
Unregistered
dazs78
Unregistered
D



Jonnybravo. Have you run slicks before at donnington for example?

I can potentially get a full set at a good price so seriously debating wether to give them a whirl at the moment.

If all was to go well then maybe start polybushing too.

Is there a diverter valve or some sort of mod as I know my brother had one fitted to his m3 when he went to slicks.

Thanks again.

Re: Slick tyres for track. [Re: ] #1485306
27/04/2014 10:15
27/04/2014 10:15

J
johnnybravoturbo
Unregistered
johnnybravoturbo
Unregistered
J



Never ran full slicks,ad08 on back and Dunlop full hard compound on front.

A bit fruity for first lap trying to get heat in them.

Rears don't get hot enough to warrant slicks and makes the back end unpredictable which doesn't suit my driving style.

Re: Slick tyres for track. [Re: ] #1485312
27/04/2014 10:48
27/04/2014 10:48

D
dazs78
Unregistered
dazs78
Unregistered
D



Hmmm. That may be an idea. I am already running semi slicks too. Maybe just put full slicks up front.

Re: Slick tyres for track. [Re: ] #1485314
27/04/2014 11:19
27/04/2014 11:19

J
johnnybravoturbo
Unregistered
johnnybravoturbo
Unregistered
J



The turn in and steering response is brilliant with slicks.

Until you've experienced them its difficult to describe the transformation.
Just remember to take your time for first few laps as I was getting wheelspin in 4th gear.

Re: Slick tyres for track. [Re: ] #1485316
27/04/2014 11:27
27/04/2014 11:27

D
dazs78
Unregistered
dazs78
Unregistered
D



Yeah my brother says the same. He was running semi's on his m3 then moved to slicks and he says the difference is incredible.

He had to put a diverter valve to his sump in his due to the extra g forces and oil starvation.

Re: Slick tyres for track. [Re: ] #1485368
27/04/2014 19:51
27/04/2014 19:51

D
dazs78
Unregistered
dazs78
Unregistered
D



Anybody else run full slicks on track? Opinions?

Re: Slick tyres for track. [Re: ] #1485435
28/04/2014 06:26
28/04/2014 06:26
Joined: Oct 2010
Posts: 549
Bulgaria
Ferrarist Offline
Enjoying the ride
Ferrarist  Offline
Enjoying the ride

Joined: Oct 2010
Posts: 549
Bulgaria
Originally Posted By: dazs78
Anybody else run full slicks on track? Opinions?

Yes, full slicks make huge difference, however on rear end you still may use semi, but if you have good sense about your car and if it suit your style - full slick rear too.....pressure above 2bar when cold, depending on track and weight of the car sometimes 2.5 may be better.....
And no matter how much you think that wide slicks will affect your top speed - get and fit as wide as possible tyres.....


20VT - Alfa 156 2.0 - Alfa 156 Mid-Engined RWD - Locost 20VT

Re: Slick tyres for track. [Re: ] #1487098
07/05/2014 15:44
07/05/2014 15:44

I
immy21
Unregistered
immy21
Unregistered
I



I have a set of 'cut' slicks that might work well as fronts in conjunction with your rear semi slicks, for what it's worth they measure up 200mm from tread edge to tread edge.

I bought them used but never got round to actually using them, there is a few reviews floating around.

click to enlarge

click to enlarge

These are quite cheap new, Deamon Tweeks sell them
If there is interest in buying mine cheap, I'l make a for sale thread.

Re: Slick tyres for track. [Re: ] #1487106
07/05/2014 16:27
07/05/2014 16:27

D
dazs78
Unregistered
dazs78
Unregistered
D



I'm interested. How much would you be looking for them?

Re: Slick tyres for track. [Re: ] #1490446
26/05/2014 14:04
26/05/2014 14:04

D
digitalundgrd
Unregistered
digitalundgrd
Unregistered
D



A month ago I drove my 16VT with 4 full slicks (235/610/17) at the Serres Circuit in Greece. 2 of them were DUNLOP and the other 2 were YOKOHAMA A005. I prefer the Yokohamas but they are more difficult to find.

They are far better than any semi slick tyre I have used before (R888, Advan A048, Federal RSR) but they needed 3-4 laps to become sticky and to provide enough grip. Also according to me their life is not very long (300km if driving on the limit), maybe that's because Coupe is a bit heavy.

According to the oil pressure gauge on the dash there was no oil starvation during cornering or braking but who knows...?!

Last edited by digitalundgrd; 26/05/2014 14:05.

Powered by UBB.threads™ PHP Forum Software 7.7.1
(Release build 20190129)
PHP: 7.3.33 Page Time: 0.014s Queries: 14 (0.005s) Memory: 0.8125 MB (Peak: 0.9561 MB) Data Comp: Off Server Time: 2024-03-28 13:22:55 UTC