My car was completely stock when I took it to the dyno in October 2002 with 4000 miles on the odometer. The highest RWHP reading was 383 and the average of three runs was about 379.
Since then, I have done nothing to the engine except a tune up around 80k miles and couple of coil pack replacements under warranty (I had the 7 year, 100k warranty).
Today I went to a different dyno, with 130 miles shy of 100,000 miles on the odometer. It has been more than 10 years since the last dyno test and lots of miles. Today, the highest RWHP reading was 367 and the average of three runs was 362.
Using a 13% loss assumption, that figures out to flywheel HP rating of about 416 HP, 26 more than the advertised rating when the Cobra was new. In my opinion, that is not bad at all for nearly 11 years and 100,000 miles of use.
These are great cars.
Since then, I have done nothing to the engine except a tune up around 80k miles and couple of coil pack replacements under warranty (I had the 7 year, 100k warranty).
Today I went to a different dyno, with 130 miles shy of 100,000 miles on the odometer. It has been more than 10 years since the last dyno test and lots of miles. Today, the highest RWHP reading was 367 and the average of three runs was 362.
Using a 13% loss assumption, that figures out to flywheel HP rating of about 416 HP, 26 more than the advertised rating when the Cobra was new. In my opinion, that is not bad at all for nearly 11 years and 100,000 miles of use.
These are great cars.
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