Jump to content

13" vs 15" wheels Westy FW


Westside

Recommended Posts

I need some advice with running 13" either or 15" wheels on a Westfield FW SEIW?

I currently have 15" 8J ET23 wheels running 195/50 Toyo T1R. my dilemma is whether I just change tyres (T1R is lethal in the wet) or wheel tyre set up to 13" 7J with 185/60 front & 205/60 rear R888R's 

At present I'm not sure if some of the handling issues are due to too much stretch on the tyre (it feels as if the tyre works on a narrow band in the wet & just drives off the sidewall) & whether 205/15's all round would remedy this, would this make the front end too heavy? or should I just go for 13"s

My other concern is whether there will be sufficient clearance for the bell housing loop or whether this would have to be modified.

I have trawled the forums for answers but as usual there are too many conflicting opinions, a common theme seems to be that people like 13" 7J with 185/60 front 205/60 rear
 

Link to post
Share on other sites
Dave Eastwood (Gadgetman) - Club Secretary

195 is way too narrow for most 8” wheels. Even 205 is a little bit on the narrow side.

T1R’s have their limitations, and will let go under provocation earlier than track day style tyres where ultimate grip is concerned, but they shouldn’t really be feeling lethal in the wet. I’d be suspecting other issues first, maybe, as you say the wheels being way too undertyred. There may be geometry issues going on as well, suspension wise, has it ever had the geo done properly, if so, where and to what settings?

As for the whole 13” to 15” thing, I’d always say pick your tyre type first, then looks at what sizes are available and what wheels would suit. The 13” choice, outside of track tyres is getting narrower and narrower with each passing year, compared to 15”. 

Link to post
Share on other sites

Cheers Dave,

Not sure what the geo settings are, a bit of a chicken & egg scenario, I plan to get the car to NMS for a geo set up but is it best to get wheel/tyre sorted first. Would there be a significant feel in weight on the front end with 205/50 15's? the tyre choice I will opt for is R888R on either size wheel

Edited by Westside
Link to post
Share on other sites
Rhett - Joint Black Country AO

T1Rs don't seem to be the best choice for the Westfield my car was transformed when I changed to R1Rs.

A couple of general thoughts and observations. 

What pressures are you running, if your running TinTop pressures this will probably add to the problems, normal sort of settings are in the high teens (psi)

If your concerned with wet handling then 888s or 888r may not be the answer, neither is a particularly good wet weather tyre. I do remember following some one running 888s in heavy ran while running R1Rs, my car felt absolutely fine, I ended up over taking and disappearing in to the distance. When we discussed it later he said he was travelling as fast as it felt safe to do so. I felt I could have run much much faster then I was.

As others have said, make sure your Geo is correct first before moving in any particular direction. 

Link to post
Share on other sites

Cheers Rhett,

I'm running standard Westy pressures between 16-18psi depending on temp. Looks like we have a similar set up, SEiW FW Zetec w Jenvey TB's, what wheel/tyre combo/size  are you running? I have a narrow front end on mine what do you have?

 

Link to post
Share on other sites
Dave Eastwood (Gadgetman) - Club Secretary

If you can get them, 195/50 15" Toyo R1R's on a 7" wide rim suit the car absolutely perfectly for use in pretty much any road conditions you're likely to drive in

15" x 8" wheels should have 205 as a minimum, and really more like 215 width, by most manufacturers recommendations. However, for the average road going Westfield, those are really a bit too wide!

As a left field option, and something i keep considering trying, now 205/50 15" R1R's seem so tricky to get are things like the Rainsport 3's(?) I see a lot of good comments about them and equivalent, slightly more production car tyres, for all round, all year, road use.

Link to post
Share on other sites
Dave (OnliestSmeg) -  Manchester AO

As Dave said 8 inch rims are too wide for 195 T1R. Check the date of your T1Rs as if they're old the rubber may have gone off and hardened.

IMO you should look at set up before committing money to Tyre/Wheel changes.

I ran T1R on mine for several years.... they are not as good as the R1R's I have now, but they were nowhere near lethal and certainly better than others on very wet roads as the tread can shift a lot of water.

The T1R do not have anywhere near the grip of the specialist tyres mentioned, but are very progressive and predictable which actually made them quite fun and definitely good for leaning car control at a slower limit. Very grippy tyres hold on then suddenly loose grip making them less predictable and harder to control.

Link to post
Share on other sites
Rhett - Joint Black Country AO

 

1 hour ago, Westside said:

Cheers Rhett,

I'm running standard Westy pressures between 16-18psi depending on temp. Looks like we have a similar set up, SEiW FW Zetec w Jenvey TB's, what wheel/tyre combo/size  are you running? I have a narrow front end on mine what do you have?

 

Wide track front, 7" rims. 195s on the front and 205s on the rear. there was no real requirement for the 205s on the rear that was don't to what was available. As you've got 8" rears the 205 rears may be better.

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

Please review our Terms of Use, Guidelines and Privacy Policy. We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.