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View Full Version : 225x Vs Modified 225 Promax



chad202
11-30-2003, 09:59 AM
How much horsepower does a 225x put out, I'm guessing around 235-240? Now how much does a 225 promax with merc HP tuner, rev limiter raised from 6750 to 7250, nothing else done to ecu, just raised the limiter, and a set of 35cc heads have. I guess around the same as the 225x, maybe a tick more. Can anyone shed some light on this?

Steve Austin
12-01-2003, 08:51 AM
the best thing about the old promax is you can bump the rev limit up. You cant do anything with the 225x yet. I am on the limiter right now with the 28et. My only option right now is to change props or gears.