TR224 vs FM F2
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TR224 vs FM F2
The only difference between the TR224 112LSA and FM F2 112 is the lift. The TR224 has .563 vs the Futural Motorsports which has .586. I know everyone likes the TR224 cam, so my question is how different is the FM cam with the higher lift in terms of hp gains and drivability issues?
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Thunder has Comp grind their cams with Thunder's specific lobes somewhere close to the XE-R lobe. Futural used Cam motion grinds so they are different in those respects. As far as power on stock heads it won't make a bit of difference using either cam. Now if you have a set of heads that can flow the extra lift of the FM2 then you might make a tad more power over the TR224. All of that aside they will be so identical it's scary.
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So there's no point in getting the higher lift cam on stock heads. I'd be running it on stock heads for sure since I never plan on getting ported heads. Thanks for the heads up
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It seems the stock LS1 heads usually stall around .550 lift and after that the incoming air charge becomes turbulent. If you never plan on changing your heads I would go with the best priced version of the 224 cam.