Rotax's are 40 odd hours.
I think leopards are 20,
100J/S are 20
40 might not sound like much but when a race goes for 5->10mins and 4/5 races a day, it's only under 1 hour of use. But, you get the people that want an engine refresh all the time too. Same with people wanting new tyres every race meet :P
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'09 BMW 135i, Lemans Blue
'97 Nissan Skyline R33 Series II GTR V-Spec
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