quote:Originally posted by pantera chris:
I new two great old race guys from the 80's that just ran a disc similar to the orifice shown in the picture, hear in Cal it just doesn't get that cold (that's what they said) no overheating problems. I also do not have a choke on my car.
what engines were these guys running Chris?
the idea of using https://tinyurl.com/Moroso-63440 style restrictors in a 335 series engine is very troubling. replacing the correct thermostat with a open orifice in an engine with the factory or similar internal bypass restrictor plate in place creates an out-of-control cooling system.
if the internal bypass system is modified with the 'pin-hole' style restrictor plate or purposely blocked with a plug of some sort, or by the use of an aftermarket water pump that does not have the bypass passage machined ... then the use of the Moroso style restrictor would be OK as long as you don't mind running your engine below minimum operating temperature & wearing the bores at an accelerated rate
maybe those guys were just ahead of their time?
but AFAIK it doesn't get over 160*-180* in sunny CA ... yet(rolleyes)