madjonat Posted June 10, 2008 Share Posted June 10, 2008 hi... i have a MK4 spitfire which i have recently uprated the suspension. the original tyres are too big on the sidewall (165/13). i have put on 175/70/13 but they still catchAny Suggestions????? :-/ Link to comment Share on other sites More sharing options...
AJ.Lintern Posted June 10, 2008 Share Posted June 10, 2008 Where abouts are they catching? Which wheels are you using? That size is fine on a MkIV - I don't have any problems on mine with 13"x6" Revs. Link to comment Share on other sites More sharing options...
CharlieB Posted June 10, 2008 Share Posted June 10, 2008 Yes 175/70/13 should be fine. It must be your wheels. Link to comment Share on other sites More sharing options...
willcolumbine Posted June 10, 2008 Share Posted June 10, 2008 I'm inclined to agree with these guys. Those tyres should be fine. I have that size on 13x6 slot mags on my 1500 and they fit nicely. Maybe your wheels have got a funny offset or something? Link to comment Share on other sites More sharing options...
Desperate Damson Posted June 10, 2008 Share Posted June 10, 2008 i had a similar problem with my GT6, i found the front springs were slightly to low hence when going over bumpy roads it would catch on the lip of the arch, also when braking hard, have you tried stiffening the front end. Failing this you can get spacers to fit on the base of the strut, but his means taking off the springs again. All i done in the end was to space them from the top hence lifting the front end slightly. i am running 175x70's on silver slotted wolfrace wheels. Hope this might help.Paul 8) Link to comment Share on other sites More sharing options...
Richard B Posted June 10, 2008 Share Posted June 10, 2008 madjonat wrote: the original tyres are too big on the sidewall (165/13).The original tires should be 155/80x13. Link to comment Share on other sites More sharing options...
CharlieB Posted June 10, 2008 Share Posted June 10, 2008 Purr_White wrote:i had a similar problem with my GT6, i found the front springs were slightly to low hence when going over bumpy roads it would catch on the lip of the arch, also when braking hard, have you tried stiffening the front end. Failing this you can get spacers to fit on the base of the strut, but his means taking off the springs again. All i done in the end was to space them from the top hence lifting the front end slightly. i am running 175x70's on silver slotted wolfrace wheels. Hope this might help.Paul 8)You're not solving the problem by raising/stiffening the car. With the correct wheels 175/70s will fit regardless how low it is. Link to comment Share on other sites More sharing options...
grahamgooner Posted June 10, 2008 Share Posted June 10, 2008 CharlieB wrote:You're not solving the problem by raising/stiffening the car. With the correct wheels 175/70s will fit regardless how low it is.I solved my catch offside front by adding a spacer, 10min job and worked a treat. However, it was only the offside catching, not both sides, so the spacer probably just makes up for my fat arse! Link to comment Share on other sites More sharing options...
99176 Posted June 10, 2008 Share Posted June 10, 2008 madjonat, we need to know in what respect have you 'uprated' your suspension.If the springs are too low they may need some spacing. The introduction of some negative camber might bring the walls within the arch.You may even have to 'dress' the arch return.I've done all this to my GT6 and the arches still just kiss the tyres when provoked.It's all just trial and error until you achieve what you want the car to be. Link to comment Share on other sites More sharing options...
CharlieB Posted June 10, 2008 Share Posted June 10, 2008 99176 wrote:madjonat, we need to know in what respect have you 'uprated' your suspension.If the springs are too low they may need some spacing.grahamgooner wrote:I solved my catch offside front by adding a spacer, 10min job and worked a treat. However, it was only the offside catching, not both sides, so the spacer probably just makes up for my fat arse!Adding spring spacers does not address the problem of the tyre touching the arch, the wheel/tyre should move through its whole travel without touching anywhere.Fit wheels with the correct offset & suitable tyres & dress the arches if neccessary. Link to comment Share on other sites More sharing options...
madjonat Posted June 10, 2008 Author Share Posted June 10, 2008 hi thanks for all the replies... the spring set up is from moss part no. tt4301 and gaz shocks tt3303 the wheels are slotted mags. i understand that putting spacers in will raise the car but i feel this defeats the intension of fitting an uprated set.using a tyre calculator i am going to try a 185/60/13 has anyone tried this option?? Link to comment Share on other sites More sharing options...
CharlieB Posted June 10, 2008 Share Posted June 10, 2008 What's the offset of your wheels? (the figure may be cast into the wheel or you can measure it) If 175/70s don't fit I don't think 185/60s will improve things.Cheaper to flog the wheels & buy some with a better offset. Link to comment Share on other sites More sharing options...
GT6 John Posted June 10, 2008 Share Posted June 10, 2008 How much are they catching? My tyres were catching after upgrading suspension and fitting wider tyres but many people, myself included, have cut off about a 1/2" of metal on the underside of the wheel arch. It is somewhat surplus to requirement anyway, and it gives the extra space needed.I have fitted 175/70/13 to my car and have 1" lower than standard 440lb springs, although I've had to fit a 1/4" spacer in. Link to comment Share on other sites More sharing options...
Desperate Damson Posted June 10, 2008 Share Posted June 10, 2008 Uprated is a loose word, i bought a pair of uprated spring and have a pair of Spaxs on the front (non ajustable ride height) while under heavy braking i could hear the tyres catching the lip of the arch. After lifting the bonnet it was clear as day the the tyres were catching the inside of the lip. After trying some spring clamps that didn't even fit, the only other option was to raise the front end very slightly not much 1/2 inch, after doing this, i have been driving through rough Norfolk country roads and it seems to have solved the problem. Im not saying this is the best way of doing it, but its worked for me.Paul 8) Link to comment Share on other sites More sharing options...
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