Superformance MKII, Riverside Racer 289 FIA vintage race car

[1795]

Well, it has been awhile since the last post. The heads were finally ported and after many calls to FedEx, they finally arrived today and I ran them out to the engine builder. Good thing that I was not building an FE with iron heads, as my right arm just came out of the sling yesterday after 6 weeks in in post rotator cuff surgery to basically re-attach my rotator cuff. Had to carry and balance the heads in my left arm.

I did not see the flow test in the container and have sent an email to the guy who ported them asking about it. When we talked he said that based on other heads like these that he has ported he expected that at .700 lift that they would flow 290 cfm, at about .600 lift around 270 cfm. Out of the box these heads are supposed to flow 265 cfm at .700 lift. So, what ever he did will be an improvement.



The crank is installed and one piston test fitted. Using Oliver rods and custom pistons from Diamond. The engine builder contacted several sources and Diamond was the only one who could manufacture them in any semblance of a reasonable time frame. The lightened crank was pretty spot on for balance and all that the engine builder had to do was lightly grind two areas on the counter weights and the crank was internally balanced.




The engine builder is going to measure the volume of the heads, test fit the heads for clearance with the pistons and valves (Erson 2.02 intake and 1.6 exhaust) and make adjustments as needed.

Still waiting on rocker arm studs and head bolts. Still need to measure and order push rods, which will hopefully not be too problematic to obtain, and test fit the custom headers that Georgie is making.

Rick Muck will be helping with the install, as I am not allowed to carry anything heavier than my cell phone for the next 6 weeks, and then I get to start strengthening exercises. Still hoping to be strong enough to race by early July.

The weather is turning nicer, except for a snow storm arriving on April 1 that is going to dump 7" of snow on us, and I am getting the itch to get out and race.

Jim