Gotcha.

The supercharger started out on an essentially stock engine. Worked. Then I built a 320 stroker at 9:1 and set the pulleys for about 4 lbs boost at 5000rpm. That had a set of Mummert ported 113’s. On the F code clone I built, I used a set of Mummert ported 471’s, 8.5 static, and the VR made about 7 lbs at 5000. Both cars had ignition retard under boost.

When the aluminum heads became available I didn’t want to do a whole new engine. The EFI unit also controls the distributor advance, so we were able to tailor an advance curve at WOT that ran just under detonation.

This took place over a 12 year period. I’ve had the bird since 1999, and it’s about to go down the road. Great car, great education. Learned a lot and I’ve enjoyed it a lot

miker
55 bird, 32 cabrio F code
Kent, WA
Tucson, AZ

Had you planned ahead to install a supercharger, you could have asked John Mummert to machine the aluminum heads to increase combustion-chamber volume. You could have also gone with dished pistons to lower the compression ratio. I have a bare set of 471 heads that are very clean and appear to have been checked out by a machine shop. The person who gave them to me said that they need guides. Although I have no use for them, I took them to keep them out of a scrap pile. I'm willing to give them to anyone who will use them, not sell them. 

Yes, but not as much as my wallet would miss the cash for a new set of custom dished pistons, rebalancing, etc. Or running racing fuel, which is available locally.

miker
55 bird, 32 cabrio F code
Kent, WA
Tucson, AZ

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Thanks K

There’s been a couple differences versions. One of the original build, 320 stoker with the Paxton supercharger. Very early digital camera, the color is off.

The other is the current version with the Mummert heads and EFI. The smaller chambers increased the static ratio to 10.7, so the supercharger had to go. Replaced with a/c.



miker
55 bird, 32 cabrio F code
Kent, WA
Tucson, AZ

That is a nicely detailed engine compartment.

Any chance of a full photo?

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What I meant for his reasoning is he must have come across the 1st engineering ILL and thought the grommet went underneath the rocker cover. 

It was a misprint. The 2nd ILL is correct.

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No, but they were cheaper than the “authorized replacements” with shipping and handling.

miker
55 bird, 32 cabrio F code
Kent, WA
Tucson, AZ

Does she need "Depends"?