Originally Posted by
bentgear
Not a good comparison, air to surface engines. Air engines spend most of their life at less than 12,000 rpm's. They operate in a loaded condition. Most flyers don't use high percentage nitro. Engines are toleranced for higher oil levels. Need I go on? Ever here of the Saito 100 gallon club? To get in it you have to run your engine for over 100 gallons just like the club name states. Try that with ANY surface engine.
as far as the heater not getting the crankshaft, rod and wrist pin hot......... when the bottom of the chassis is hot, the rest of it is hot also.
Dragsters run without preheating for max power, plus look at the rebuild frequency. Nascar on the other hand hates cranking a cold engine, especially a used cold engine. Ever see a crew cheif cross his fingers hoping the engine is fine after a long red flag?
Drag race motors have the Blocks filled so they cant be preheated and they only run for 8sec at a time so they get all the Heat they need with the Burn Out.
All so when i run Late Models it was the same way we Crossed are fingers each time we started the motor after a Long Stop and the motor cooled down and we could not get back to the Pits to hook up the Block heaters.