reground cam 270 valve settings

[mike37 cdn]

hi I have the engine out of my 26 coupe when I rebuilt it last year I put in a reground 270 cam I did not get the power increase I thought I might see I set the valves at 18 as per the shop I got it from has any body tried different setting at all if so what did you set them at and how did it run I have hc pistons in the new rebuild thanks mike

[George N Lake Ozark]

!8 is too much. I'd shoot for 10/12. that's what's recommended for Stipe cams .

[Scott_Conger]

For starters, I would find out who reground the cam and ask them what the gap should be. Simply picking a number will change valve events ever so slightly. Specifically, going wide will increase valve noise, retard valve events and reduce valve lift.

As far as power, you have an all steel, heavier car (but certainly not the heaviest made) and an engine that on it's best day in 1926 would likely produce less than 18HP at the tires based on many recent Dyno tests at National meets. In fact many stock cars log in around 14-18HP, even with fresh engines. A high lift cam will help increase HP but understand that it will be an increase of a fraction of 14-18 HP particularly if your compression is still stock. A high compression head should make you feel a difference if you were to add it. I suspect you are 1/2 way toward where you want to be. Best of luck, and welcome.

[JWalters]

A high compression head should make you feel a difference if you were to add it.

Mike has high compression pistons and can't add a HC head without changing pistons first.

[Scott_Conger]

You're right. My mistake. That was one long sentence, and my eyeballs missed "hc" completely. That combination should give a decent pep in it's step unless the carb is shot or the intake manifold has a leak.

[Steve Hughes]

I am currently building an engine for my '21 centerdoor. I got a 270 lift driver reground cam from Chaffin's Garage. They recommend .015" for both intake and exhaust. Since that is their recommendation, that is where I will be setting mine.

[mike37 cdn]

any more in put on this one any one