I'd like to improve the ride on my '92 miata

If the suspension is still original then it probably just needs an overhaul.
Bushes, struts, strut mounts, even coil springs, they all wear out and have to be replaced eventually.

If you have already done all this and want further improvements then start with struts and tyres. They make a lot of difference fairly easily.

It's hard to say more without knowing more about the car and what you actually want to achieve.

I had the shocks and struts changed in Nov '03 but it still takes uneven surfaces really badly! I just want to correct it to some decent level of comfort. Surely it shouldn't sound "thunky", right?
Am on 15" 195 50 series Yokohamas currently. The plan to upgrade to 16" rims will only take place once I put in the power steering.

If you replaced the struts with cheap non genuine parts then that could be your problem right there. Make sure your tyres aren't overinflated. As for tyre width, 195 sounds wider than standard. If so that will be a contributing factor.

Finally, "thunky" compared to what? An MX-5 will always be more "thunky" than say, a 626, because it's an open top sports car.

I haven't driven any other MX5 here so was just wondering if this ride was standard. Actually, it's very happy when the roads are smooth - quite a dream drive (for a cheap car!) So you reckon the tyre width impact the ride? Will check that out. Thanks! What year do you own?

I don't own an MX-5, have thought about getting one but I don't like convertibles. Increasing the width of tyres does tend to make a car a bit more "bumpy" on rough roads. It's just because the contact patch with road is bigger. I would guess 175 would be standard, but going back to that wouldn't make much of a difference. A good quality set of struts will do a lot more.

Oh, and welcome to the site TunaT.

Interesting! You don't like convertibles but are thinking of getting an MX5 - the world's best-selling 2-seater open top car.......anyway, i suspect the hard-top on mine is a little loose, hence an extra thunk whenever the road surface gets bumpy. In KL, when drivers weave, it's not a result of alcohol - it's the poor road surface! Thanks again for your input!

Ah, the hardtop would almost certainly be making it a little worse.

Cheers.

the Miata is a car designed for 'performance', not comfort.
higher performance means a greater degree of safety also.

be happy

you don't want to get "soft"!

That is true!
But you know how it is - one gets a little fidgety every now and again wondering if perfection can be improved upon! Guess I'll just shift my attention to upgrading the sound system, then. And if I turn it up loud, the thunks would disappear, no?

That's a much better idea. Seriously.