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FE Technical Forum / Re: How to turn a 10 second car into an 11 second car.
« on: October 04, 2019, 10:16:51 AM »Timely subject as I broke a Dove HD Rocker this past weekend. Engine went bad top end of 4th gear and it sounded like a piston with a hole in it. Clicked the thing off and got towed back to my pit. Turned out to be the #1 Exh. and luckily I had a spare. I didn't find any other damage and also didn't have time to run the thing before 1st round. Car went 10.04 on the breakage run and 9.96 after so I guess things are okay, Tach recall said 7700 RPM and I still have plenty of confidence in these old used and abused Dove rockers.Where did the rocker break? Which cam, and what spring pressures? I have several rollers, a couple a bit under .700, and a .725, and have been told that the Doves are pretty safe up to around .700, then get "iffy"
As for Aluminum vs Steel.. Each has their advantages but my opinion is design has more to do with longevity than material. My friends SBF has a Cam with a rather large amount of lift and springs to match and never has rocker problems.