Diesel Power,
I am sorry if I was unclear about this. The ones that left a cloud at 90,000 were driven by women who took them to work and the grocery store. The ones that needed new engines every week were the modified ones. Normally manufactures should "underpower" an engine relative to its full potential not be at the limit. A good example of this is Audi and its ability to get 1600 horsepower out of an engine that was made for 240(5 cylinder) in the 80's and still last a whole race. Thats quite a larger gap than going from around 200 to 400. Jap cars are typically made like this with the "enough to get by" attitude but once asked for more usually fail. At least he ran from it anyhow.
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