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The mkiv Supra Owners Club

Car feels sketchy


Adam_SG

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At high speed when braking it feels like the car is very light at the front and tries to pull me all over the road, i have a UK TT AUTO would new suspension and a strut bar help this, or are new bigger brakes required.

 

Cheers

 

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all at 36 psi, rear tyres are brand new, front have a little wear on in-side but are uniroyal and have plenty of tread left on em. Rear tyres are Kumo i think, got em for 100 each - after my 350 pound service had to go budget.

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A few guys on the BBS run with Whiteline suspension, I am sure one of them will tell you wheater they recommend it or not.

 

BTW, how many miles has your car got on it? It must be quite alot for the suspension to be on it's way out. The j-spec will feel firmer as the UK-spec has softer shocks anyway. :)

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Originally posted by Adam_SG

Whats the best front tyre i can get, and where can i get a pair for a decent price, none of this 220 per tyre price. Think the Michelins came out at 180 each!

 

Good tires cost money, dont buy cheap ones and expect there to be no grip/handling price to pay. The best out there are the S0-2s and they would be about 250 for the front.

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sounds to me like it could b one of alot of other things b4 new suspension. the susp bushes may b worn or damaged. the wheel size and offset could be way out. have u checked for loose connections in the susp? yr brakes could b defective or abs is not fuctioning correctly. im just stabbing in the dark here, not seen nor driven yr car, nor am i an expert.

 

explain the problem in more detail. what wheels do u have? hows the ride when not braking? excessive tramlining? does it happen under hard braking or light braking? does it happen on new smooth roads? any noises? how r the tyres wearing?

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Originally posted by Terminator

 

I think that may be near the end of their useful life.

 

60k out of my shocks before they started too leak.

 

I went for the Whiteline stuff, Koni adjustable shocks and springs, no need for anti roll bars in my opinion and only £630.00 inc shipping, vat and import duties. Bear in mind that there are full 4 wheel alignment charges (£105.00) and fitting charges on top.

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I have standard 17" UK spec, front tyres are wearing on the inside excessively, Ride feels fine when driving and accelerating, It just had a service at Toyota and a full MOT would these eradicate any problems? When braking hard at 90+ it just doesn't like it, pulling me left + right. The disks + pads r fine but as i said the tyres on the front are wearing on the inside heavily ( Tracking problem?). so a full tracking job tomorrow and c what happens, i dont think it will sort it out - but i found out from a friend that he can get Porsche Brake modded for the supra... u think this would be good?

 

Cheers

 

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Originally posted by Adam_SG

ah the infamous tracking problem, it cost like 30 to get tracking done and normally unnecessary. What suspension would you recommend for the Supra the UK susp needs to be replaced as the jap ones i drove felt better.

 

For 30 quid it's well worth getting the tracking checked (and the rest of the geometry as well). It sounds like you have too much toe-in which would make the car very nervous under braking.

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A caliper could have a problem...could be worth investing in the renewal kit Doughie mentioned a while ago.

 

Could it be the tarmac? Stoopid as it sounds maybe with the recent heatwave the tarmac changed slightly?

 

Take it to a garage (not necessarily Toyota) and get it checked out they may find the bushes are knackered as Eyefi mentioned.

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Guest Martin F

My guess is that your shocks are leaking. Get them checked out.

 

Wear on the inside edge of tyres on a Supra is quite normal, you can dial this out but it tends to be at the expense of handling.

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I was doing 120 on the dual carriage way and decided i would brake early for the roundabout, holy ***** my heart rate rose 500% as the car twitched on braking and i had to fight to keep control. Hope the tracking sorts it out.

 

 

Thx for help guys :p

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Originally posted by Syed Shah

I dont think many brakes come close to the UK-spec ones performance-wise. They are almost 100% not the problem. Also remember the Porcshe is lighter, so probably would not need as good brakes as the UK Supra.

 

Porsche brakes rule...end of!

 

If they are a 4pot + with a rotor more than 320mm in dia then they are worth investigating.

 

Can you get those nice ceramic ones off the turbo? :D

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