ClassicCar

Anyone have a camshaft grind recommendation to perk up a '36 212? I have got a 112 head to raise compression to around 7.5:1 and I am looking for a little more valve lift. The goal is to optimise torque not turn it into something that loses low and mid power and gains a few horses only at the top end. I have done some measurements and there is enough valve to head clearance to increase the lift quite a bit - BUT, I don't want to overtax the valve followers/cam given that more duration is probably not called for.



Headers - given how horribly restrictive the standard exhaust manifold is, and how tight clearance steering shaft & box clearance is on RHD cars I don't think a split manifold is the correct solution in this instance. Looking instead at some 6-branch 1 and 1/2" header pipes around 50-55" long coming over the top and down the left side of the engine (stacks of clearance), with each of the two bunches of 3 headers going into a Tri-Y and then both of these into a single 2" out to the rear. The exhaust ports are circular and 1 and 3/8" diameter, so 1 and 1/2" pipes would hopefully act as anti-reversion headers. I can't see the point in large diameter header pipes like 1 and 5/8" as this will likely lose velocity and power from what I have read. Has anyone got any info and/or images on this? A couple of issues are how to heat the inlet manifold for winter driving and how much noisier would the headers be (maybe I can wrap them as many do?).



I do want the Terraplane to fly along as I think it can do with some minor tweaks like this. I need to decisively beat my mate with his '38 Ford coupe with Mercury motor and twin pipes. All for fun of course, and to keep the Hudson/Terraplane performance legend alive.