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Thread: 75 profile tires for 73 stock 240 with stock ZX wheels

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    Default 75 profile tires for 73 stock 240 with stock ZX wheels

    I've got some 60 series summito 205's for autocrossing.

    However, I'd like something a bit more comfortable for my daily driving. I am thinking some 75 profile Kumhos. The higher profile to get me a bit more off the ground and give me some flex to reduce ride harshness. I'm entirely stock with KYBs and with some ZX wheels. What would be the widest I can go without rubbing? I see 195/70 listed. I am thinking maybe a 75 might have to be a bit smaller.

    What's yall's experiences?

    Other suggestions.

    Go ahead and flame me and tell me to buy a Buick if you want.

    DON

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    Registered User MikeW's Avatar
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    Quote Originally Posted by wa5ngp

    Other suggestions.

    Go ahead and flame me and tell me to buy a Buick if you want.
    How are your seats? I noticed a more comfortable ride after redoing my seats with new foam inserts and new seat covers. I'm not convinced that a change in the tires would make a big difference in the ride as there are many other factors that contribute: springs, struts, bushings, etc.
    -Mike
    Add your Z to my online spreadsheet registry

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    Acts first, Thinks later speedyblue's Avatar
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    I have 195/70's on 280x 6 spokes and they dont grip too well, especially in the wet. You can fit a 235/60 on the rear but on the front a 235 will hit the spring perch. My guards are lipped though to fit 235's on a 0 offset rim. Not sure if they fit dead stock guards.
    I drive a Z because there simply weren't enough station wagons to go around.

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    Semi-retired admin Arne's Avatar
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    To keep the height about right, you'd need to go with a quite narrow tire, 185/75-14. The ride difference between that and the 195/70-14 will be minimal.
    Arne - Former owner, HLS30-37705, 7/71, 905 Red
    Car blogs - 240Z - Porsche 911

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    Tks all,
    Arne, I think you are correct. If I remember when I got the car in '76 it had F78 something on it and it just barely cleared the wheel well and I think that's about a 185.

    Skinnier may be better for wet weather. Those 205 summitotos seem to hydroplane real easy. Just too little pressure to squeeze the water out of the way it seems.

    Don

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    oh yeah,
    on the seats, I got a set from a Mitsubishi eclipse. I also set them up higher. My head almost hits the roof but with them up higher I get much better support on my thigh and that takes the pressure off my L5S1. That was a great improvement.

    But the real deal was those KYBs. Now my wifes camry seems like it rides rough so I'm ordering a set for her.

    Ahh the greying and Buickazation of America.

    Don

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