Bigger front tyres on Non PAS
Discussion
I didnt think that the Non PAS cars steering was at all heavy.
Has anyone else decided this and fitted wider front tyres as on the PAS cars?
Anyone found they could do with more grip up front?
Its a silly question but the problems it could cause have been niggling at me so I thought Id ask and see if there is any experience of this.
Has anyone else decided this and fitted wider front tyres as on the PAS cars?
Anyone found they could do with more grip up front?
Its a silly question but the problems it could cause have been niggling at me so I thought Id ask and see if there is any experience of this.
kdd said:
I'll be interested in replies here also.... as I have what I believe to be non PAS tyre sizes fitted to a car with PAS......
>> Edited by TheHobbit on Wednesday 14th January 13:54
From what I understand the 16" spider wheel conversion offered by TVR increases the width of the front tyres to one comparable with the std PAS 15" wheels. Perhaps someone with the conversion (and without PAS) could offer an opinion? I remember Pebbledash having his done, but I'm not use whether he has PAS or not.
Paul V said:
My car has the 225 PAS tyres without PAS, the steering is heavy when not moving but at speed its fine, I did notice how easy the T350 was to drive with the PAS and light clutch though.
so you have 225/50ZR15 on the front, and 225/50ZR16 on the back?
do you find the handling OK?
are there any reasons *not* to do this?
pleased u said that peter, i was wondering if i should go to 225 on the front of the S for track days, might need yet another set of spare wheels now ..
greenv8s said:
I've gone up to 225 on the front front for more lateral stiffness and better turn-in, and slightly less understeer on the limit. But these are on 7.5" rims - personally I prefer not to go over 205 on the standard 7" front rims, because the larger sizes don't fit the rim properly.
Wasn't the reason non-PAS cars had the slightly narrower tyres to reduce tramlining etc. I know this can be pretty awful on my 4.3 with original tyre sizes. I wouldn't want it to be any worse that is for sure.
They then were able to fit wider tyres on PAS cars as the PAS reduced the effect for the driver.
They then were able to fit wider tyres on PAS cars as the PAS reduced the effect for the driver.
greenv8s said:
I've gone up to 225 on the front front for more lateral stiffness and better turn-in, and slightly less understeer on the limit. But these are on 7.5" rims - personally I prefer not to go over 205 on the standard 7" front rims, because the larger sizes don't fit the rim properly.
Isn't that with 16 inch wheels though? Your car is not exactly standard either unless you've been anti-modding it
Not exactly an apples and apples comparison. TheHobbit said:
mine has PAS, and should/would(?) have had the larger rims from new? so if they are the 7 1/2 inch rims I could go to 225?
According to the bible, all the cars had 7J wide front wheels. Except for a few of the last 100 which had 7.5 x 16. Sometimes. MAybe.
The 225 will fit on the 7J and as I said, gave me the best grip and feel compared to the others. Main difference is cornering speed for understeer started to occur. 7J is on the limit of recommended fits and a wider wheel would help but it is not an issue. I have plenty of pictures of the Griff be pushed hard through corners and the contact patch is not distorted. It is very much car specific as on the Wedges, the same size tyres would roll quite badly. I think the weight distribution with the engine further back is something to do with the problem and the Mk V Cortina suspension on the Wedge which is not exactly that advanced. Cheap but not advanced.
If you fit the wider tyre to a nonPAS tyre, expect the steering to be heavier at low speed and liekly to be a bit more tramlining. Maybe.
shpub said:
mine has PAS, and should/would(?) have had the larger rims from new? so if they are the 7 1/2 inch rims I could go to 225?
According to the bible, all the cars had 7J wide front wheels. Except for a few of the last 100 which had 7.5 x 16. Sometimes. MAybe.
The 225 will fit on the 7J and as I said, gave me the best grip and feel compared to the others. Main difference is cornering speed for understeer started to occur. 7J is on the limit of recommended fits and a wider wheel would help but it is not an issue. I have plenty of pictures of the Griff be pushed hard through corners and the contact patch is not distorted. It is very much car specific as on the Wedges, the same size tyres would roll quite badly. I think the weight distribution with the engine further back is something to do with the problem and the Mk V Cortina suspension on the Wedge which is not exactly that advanced. Cheap but not advanced.
If you fit the wider tyre to a nonPAS tyre, expect the steering to be heavier at low speed and liekly to be a bit more tramlining. Maybe.
Cheers Steve. I'll think about going up to 225 on the front then.....
FlipFlopGriff said:FFG could I politly question that? If you have the normal 500 7 spoke wheels then they are 7"x15" front and 7 1/2"x16" rear. Rich...
Ours is a '97 500 without PAS.
The wheels are 6.5" by 15" at the front with 205/50's and at the rear 7" by 16" with 235/50's. I believe this is the standard for that year but the later rear tyres were 245/45.
FFG
I've often pondered this 
, the 15x7J, as I understood it, has an 'ideal' width of 215 :confused, however 215 is not as easy size to get hold of in the 'right' tyre. In the interest of ease of steering the non-PAS cars went with 205 and the PAS cars 225.
Steve when you say 225 was the probably the better size I'm assuming 15x7J wheels, but what profile 225
, again I'll assume 50.
Like for like then, I have 15x7J front and rear so 225/50/15 could, subject to slow speed 'arnie like' turning and possible tramlining at speed, be a good thing to try. I would prefer this as it would keep the original roling diameter for the V8S. (or I could just pick up a set of 16x7.J rims
. Obviously no guarantees and IMHO etc.......
Harry
, the 15x7J, as I understood it, has an 'ideal' width of 215 :confused, however 215 is not as easy size to get hold of in the 'right' tyre. In the interest of ease of steering the non-PAS cars went with 205 and the PAS cars 225. Steve when you say 225 was the probably the better size I'm assuming 15x7J wheels, but what profile 225
, again I'll assume 50. Like for like then, I have 15x7J front and rear so 225/50/15 could, subject to slow speed 'arnie like' turning and possible tramlining at speed, be a good thing to try. I would prefer this as it would keep the original roling diameter for the V8S. (or I could just pick up a set of 16x7.J rims
. Obviously no guarantees and IMHO etc....... Harry
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