focus rs pistons?
Too many posts.. I need a life!!
Joined: Mar 2006
Posts: 955
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From: UK
I would say max 360bhp tbh on full boost & hard extended use
On my original gt28 setup when i changed to Autronic SM4 ecu & custom mapping my car made 385bhp but was advised that at that power the engine internals were right on their limit for that power & was advised not to run the car for extended periods on full boost/hard on that power
Bear in mind though if the pistons are out of a used / worn FRS then they may not take as much power - there have been a couple of FRS out there on less power & higher mileage than mine that have let a piston go
On my original gt28 setup when i changed to Autronic SM4 ecu & custom mapping my car made 385bhp but was advised that at that power the engine internals were right on their limit for that power & was advised not to run the car for extended periods on full boost/hard on that power
Bear in mind though if the pistons are out of a used / worn FRS then they may not take as much power - there have been a couple of FRS out there on less power & higher mileage than mine that have let a piston go
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