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14/11/2003 11:38:03   Louis   Hello all you saab fans. It is some time I have not been on the site as I have been away alot (without a computer). Away for me is in the UK! The question I had was:
Can anyone tell me of the various tyre sizes (other than 155 R 15) that fit on the original steel rims for the 96 V4? I don't want to modify anything and I don't want rubbing either!
Thanx all for your help, all the best
Louis.  
14/11/2003 12:09:30   James Ayres   The only way to guarantee no rubbing without slight modification is to stick with the original 155s. This also keeps the steering lighter and as that's what the car was designed with I prefer them. Firestone do these and you can get them from 'kwik fit' for 41 each including fitting and balancing. If you really wanted to change, I suppose 165s might be an option.
James  
14/11/2003 12:51:42   Senor Burt   I always found 165's to be fine. You do get a bit of rubbing, but you do with 155's on some cars.  
14/11/2003 17:58:58   john   One of the local guys runs 185/65's on his car dont know if they are on later rims but he says rubbing is minimal under normal driving.

Jonny  
15/11/2003 00:42:04   Alistair   OK, here goes with one of my fave hobby horses...

For a standard car you can't go wrong with 155s - 165s increase the ride height, gearing, degree of slop in the steering and IMO upset the handling for no real gain in grip.

If you must go wide, depends on the size of your rims. If you have 4.5J rims then you CAN go to 185/65 (been there, got the t-shirt), but this stresses the sidewalls a lot and will rub on inner arches on full lock, and on rear wings. 175/70 is a better bet, though they've not been produced in vast quantities for years. The current ideal is probably 175/65, fitted to lots of warm & hot hatches todays (eg Mini Cooper).

If you have 5J rims then 175s again, and 185/65s will be much happier than on the narrower rims.

If you have standard 4J rims then stick to 155s or 175s at the very outside.

To avoid wide tyres rubbing on the arches, especially with Sonett offset rims, you need to be prepared to give the rear wings a right good yank to bend them slightly.

Remember the steering will be much heavier with wider tyres, and they tend to be less progressive in the shift from grip to slide.

For a fairly standard road car my preference is 155s and learn to slide it about a bit!  
18/11/2003 08:00:22   Richard   Get your Bharums out and drive it sideways. Ok, I would use 155's on a road car, the feel is better through the steering. Kumho, Firestone and numerous other manufacturers make them. The other option is to go to 165's which are also easy to get hold of.
I would not use 185's on a road car, not without some special rims. A 5" rim is still not wide enough for 185's, leaving the tyre to move about on the side wall.  
18/11/2003 20:20:14   ian   have never used anything else than 155/15's both for tarmac road rallies and forest type events...lots of good "bite" and grip on loose and lovely handling on tarmac...these are the tyre that the car was designed for...firestones are easily available and wear really well on two strokes but soon go on front of v4. do get pressures correct as too hard on rears can get a bit exciting....oh yes and take off the anti roll bar if it has one..it will turn in much sharper  
19/11/2003 01:21:14   simon   Dear Ian,
For those of us without the original owners books, would you please inform as to the correct tyre pressures.
Thank you.  
19/11/2003 08:04:22   Richard   I would agree with Ian, the only problem for stage rallies are the lack of 155 tyre manufacturers. Colway make their M&S plus at 165, Maxsport make RB1s and RB3s along with Dunlop who make 83s at 175. The only other option is Hakkas without studs.
On tar there is only one tyre I would use Avon classic rally in 155 or 175, you just have to watch the 175s or you will grip roll!  
19/11/2003 08:07:30   Richard   I run 25-27 psi usually 27 front 25 rear on the road car. Rallies I run 25-27 front 30 rear.  
19/11/2003 09:31:24   Alistair   On my last car with Firestone F560s (I think) I ran at 28 all round in winter and 30 all round in summer. Ignore the "official" figures stated in the manuals - 25 all round - a nightmare unless you have arms like a gorilla and like understeer!!

Definitely agree with Ian on the AR bar - I've never got on with them - crap turn in and too much wheelspin in tight bends (doesn't really reduce the body roll but instead lifts the inside wheel!)

Disagree with Rich that 5J is too narrow for 185s, this was the standard size on many C900s. But I wouldn't put them on a standard car though...  
19/11/2003 11:58:58   ian   28-30 on fronts..depends on weather....25-27 on rear...
rear pressure does surprisingly make a difference...only once used 165 chunkies and found them no good at all..in fact we went off because of them!! colways are very popular with the volvo people but i still feel they are too wide for 2 stroke..lifting wheels alistair is what you want without an lsd  
19/11/2003 12:51:16   Richard   5J is the min width for most 185's which dont think is a good idea, better with 5.5J's.
Ian I use Maxsport rb1's on 5J rims which work well in all dirt conditions, they are safe and you can get them in softer compounds than the colways, Perez used them on his porker several times this year. At the end of the day the extra re-enforcement will slow you down on road rallies.
Here is the cheap way to get an LSD, left foot brake and hold a small amount of pressure on the brake as you all the way through and the exit of the corner, vary this with the throttle (pulse the brake a little if required). This acts as a toddle brake or traction control, the small pressure on the brakes stops the light inside wheel from spining a la LSD.
 
19/11/2003 13:36:14   steve h   Having run both 165s and 155 with and without a roll bar I have settled on 155s with a roll bar on my modified V4 and no roll bar on the standard car. I felt 165s made the car feel like a tank on a matress as does thelack of roll bar to a lesser extent. 155s and roll bar make the car feel up on the balls of its feet, flat and completely in progressive control... But I respect the view of the rally boys that roll bars hinder loose stuff control.  
19/11/2003 16:59:03   Richard   I run roll bars on the road car, it does loose a some low speed turn in, but feels more stable on fast sweepers, it all depends on the type of road you are driving down.  


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