Sound proofing

[SymonsO]

Hey,

Just wondering that the most succesful ways are to soundproof a classic mini? The foam behine the engine obviously goes some way to achieveing this but is there a better fabric to use or anything else I can do? I have a Cooper S and its quite loud, over a long journey I need some paracetomol!!!!!

Cheers!

[Kirsty5150]

I used dynomat in mine. Went from not being able to hear a thing at 70 to being able to hold a reasonable convo at 70+. I found the front bulkhead didn't do that much, but doing the rear seat upright/bulkhead did make a huge difference.

[Cara Jynwyth]

I use earplugs.

The best stuff I have found is heavy carpet underlay, but I reckon it knocks about 5hp's performance off the accelleration, hence no carpets.

[Cooperman]

With no soundproofing, just a basic set of carpets, straight-cut gearbox, straight-cut drop gears, twin 1.5 SU's with only K & N filters, a big-bore, but reasonably quiet exhaust system, ear plugs are a must at, say 5000 rpm in top, that's just over 70 mph with my 3.9 final drive ratio.
However, for a 7.4 seconds 0-60 mph time it's worth it!