My suspension seems like it may be too hard as I seem to feel heaps of bumps very sharply and it feels unstable cornering quickly. The only other mini I have driven was hydro so I don't know what it should be like. Tyres are 12" A539 and the total toe in on the rear is around 30′ (can't remember exactly).

I am wondering if it is the fact that the rubber cones were purchased in 2018 and unused until 2022? They were also purchased from a place which I have found everything from them has had to be replaced.

I got it registered in May 2022 and drove it for a few months before removing the engine and I didn't notice it but there were many more important issues to fix. It might have also been hidden a bit by the fact the subframe mounting bushes were new but rubbish and I also replaced them before reinstalling the engine.

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1986 Mayfair (998 auto), 1974 S, 1974 Van, 1972 PMG Van

Test... Don't Guess

do you know what brand they are ?? will help alot

Not sure but they would've been the cheapest ones minisport uk sold, it wasn't my project at that stage and all parts were purchased from them.

I guess these ones unless they have changed what they sell.

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1986 Mayfair (998 auto), 1974 S, 1974 Van, 1972 PMG Van

Test... Don't Guess

I might try lowering the tyre pressure, I am currently running 32psi front, 30psi rear.

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1986 Mayfair (998 auto), 1974 S, 1974 Van, 1972 PMG Van

Test... Don't Guess

I used to run 30/28 I now run 28/26. I think grip is better in both wet and dry.
165/70-10 A008s.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

You may have one that has collapsed, giving uneven loading across the car. A bit like an uneven table at your local cafe!

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Cheap, Fast, Reliable. Choose two.

if they are a cheap set they will not last. I use a Moulton kit and they have not gone down at all and are very comfy

How high is the suspension? If it’s too low and hitting the bumpstops it’ll cause irregular handling

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Wheel centre to arch:
Front: 30cm
Rear: 34cm

Now that I have remeasured it the front is a bit low. The only offficial data I have found is for hydro minis and specifies 33cm for the front. I can't remember what I set it to originally but I seem to recall 34cm and the rear was higher. I still wouldn't call this low, I even constantly get told by one person that I have "beach buggy suspension"

This is the quickest data I have on hand, when I adjusted it I used what is in an official workshop manual pdf that I have.

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1986 Mayfair (998 auto), 1974 S, 1974 Van, 1972 PMG Van

Test... Don't Guess

I will try that tomorrow and see if it improves anything.

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1986 Mayfair (998 auto), 1974 S, 1974 Van, 1972 PMG Van

Test... Don't Guess

If you have adjustable height then the HiLos may be the culprit.
"Sports" hilos are flat - no radius at all.

The greater the curve, the softer the suspension.
Cleverly made ones (calling Matt Read) have a progressive rating/curve.

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Too many cars, and too little time.

I only have hilos on the front and they are original ripspeed ones, the type which use the hex rod to adjust. These should be ok right?

If I get stuck on this problem I will go confuse Matt again, I have confused him many times although I don't expect this would

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1986 Mayfair (998 auto), 1974 S, 1974 Van, 1972 PMG Van

Test... Don't Guess

I haven't yet raised the front and realigned it but the tyre pressures do seem to have made a big difference.

On another issue what would the acceptable runout be on a 12" steel wheel. When I balanced them they did "wobble" around which I think might be causing some noise I am getting. I have three more to choose from, I just need to repaint them.

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1986 Mayfair (998 auto), 1974 S, 1974 Van, 1972 PMG Van

Test... Don't Guess