[aerohead]

Originally Posted by JacobLeSann

Aerohead, I understand that dilemma. Even before I had a car, I would be riding one bicycle as I was designing another to replace it at home. The daily bicycle would need repairs and I would put those on the back-burner. Happens with my cars too!

Sorry to hear you have to deal with an annual inspection. Makes me grateful for my provincial laws (for once). As for pouring concrete, tricky this time of year! Gotta play the temps correctly, especially with the drops at night.

Hope it all goes smoothly.

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MetroMPG, that’s neat! I’ve never seen those threads and I’ll have a look right now. 3% improvement is far less than what I expected but it lines up with the notchback mod threads I’ve seen here. I guess being so reserved about the idea of a boat tail has made sense. I figure it’ll be better to tackle every other area of the car until I can figure out something *good* for the rear.

For the grille block, that’s neat. I know my car was fine with a grille block almost the same as yours. Once I added a front undertray, I noticed a tendency to overheat. Since then I’ve added more exhaust cooling and have added onto the OEM ductwork within the wheel wells. Now the car is effectively always at 87 degrees Celsius. Fans kick in at 103 degrees Celsius for me, and I’ve read that hotter temps can damage seals long term. Funny enough, I have replaced the axle shaft seals already.

For what it's worth, Tadge Juechter ( sp ? ) chief engineer on Chevrolet Division's Corvette programs told the press that they allowed for 239-F coolant, 284-F engine oil, and 284-F transaxle fluid. That would be for a full-synthetic lube package.