Thread: Sunday Red: A 1932 Roadster Build Log Started in 2022

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Originally Posted by rspears

Inquiring Minds Wonder:
We love pictures, and yours are great but....
1) Did the machine shop grind the valves or just reassemble the heads?
2) You say "Crank came out .10 for the main and .10 for the rod. Everything else should be standard." What is "Everything else?"
3) You say "I don't think they even touched the camshaft because it was perfectly fine." What would you expect the machine shop to DO to a camshaft, and why would you even send it to them? Sounds like you're planning to re-install the stock cam vs buying an aftermarket, so why?
4) Are you doing away with the ECM/Computer and stock distributor?

Just trying to understand your process, and not trying to be critical in any way but answers to all three questions would be appreciated.

My questions remain active, but I had a thought about your camshaft. You mentioned earlier that you were getting rid of the EFI, which I'm assuming (though it's dangerous to assume) means that you're also getting rid of the ECM/Computer too, right? (Question #4, added) That stock cam grind is for a variable timing setup, with the total advance mapped against RPM while considering the A/F ratio, barometric pressure and knock sensors. I'm thinking that it may not be the best profile for a fixed curve distributor, but I'm not really sure. At a minimum I would talk to a Tech at one of the aftermarket cam companies. Perhaps one of the others who are more versed on cam selection can chime in after you confirm or clarify your intent on your engine build?

Originally Posted by rspears

My questions remain active, but I had a thought about your camshaft. You mentioned earlier that you were getting rid of the EFI, which I'm assuming (though it's dangerous to assume) means that you're also getting rid of the ECM/Computer too, right? (Question #4, added) That stock cam grind is for a variable timing setup, with the total advance mapped against RPM while considering the A/F ratio, barometric pressure and knock sensors. I'm thinking that it may not be the best profile for a fixed curve distributor, but I'm not really sure. At a minimum I would talk to a Tech at one of the aftermarket cam companies. Perhaps one of the others who are more versed on cam selection can chime in after you confirm or clarify your intent on your engine build?

The stock EFI / electronic controls cam won't even be close to optimized for the engine, going back to a carb and non ECM distributor change the cam requirements significantly. I would question the logic of putting a used cam and lifters in a fresh engine anyway, normal wear and tear for a bunch of street miles have taken their toll on the components, I'm sure.