[JRC3]

Clois,

What are the engine build specs for your engine - in particular your cooling system?

I have a new 428 cobrajet - but it gets hot in traffic, but runs perfectly cool on the freeway. My electric fans don't come on until the engine is at 212F which is too late, as too much heat has built up in the engine already. Now I watch the temp guage like a hawk and flip the fans on at ~200F.

I'm trying to figure out the root cause problems...

I don't think the 180 degree thermostat is sticking, I don't think it should be a problem. I don't have an aluminium high performance water pump, plus I have large iron crank and low geared water pump pulleys. My gut feel is that there isn't enough coolant being propelled around the block at low rpms.

What do you reckon??

James