Yes, I searched. I specifically searched for "190F" and "195" and checked every thread that came up. Not one of them discussed what I am looking for.
The only thermostats available for the Series 1 seem to either be the OEM 180F or the aftermarket/competitive 160F. There does not seem to be anyone producing a 190F thermostat for the Series 1 RX-8.
My RX-8 has 85K miles on it and I've noted that the infamous hard starting when warm issue comes up if the engine doesn't run long enough at full operating temperature, and even with long drives, I usually have to throw a can of Seafoam in the tank once or twice each winter to free up whatever is getting stuck.
I am using Evans Waterless coolant and a BHR Radiator (I've also had a seized fan swapped out) so I am not particularly concerned about localized boiling in the coolant jackets near the exhaust ports, which is why I presume Mazda only offered a 180F thermostat (along with an apparent deficiency of extreme cold weather testing).
I recall that the FB RX-7 had thermostats available in 180F and 195F; but there does not seem to be a 190F or 195F thermostat on the market for the Series 1 RX-8. I am wondering if it is feasible to swap the core components from a 195F FB thermostat into the housing for an RX-8 thermostat in order to construct a viable 195F Series 1 RX-8 thermostat.
I'm trying to find comparable photos of the two designs to see if this is feasible or not; but it occurred to me that someone might know the answer already.
The only thermostats available for the Series 1 seem to either be the OEM 180F or the aftermarket/competitive 160F. There does not seem to be anyone producing a 190F thermostat for the Series 1 RX-8.
My RX-8 has 85K miles on it and I've noted that the infamous hard starting when warm issue comes up if the engine doesn't run long enough at full operating temperature, and even with long drives, I usually have to throw a can of Seafoam in the tank once or twice each winter to free up whatever is getting stuck.
I am using Evans Waterless coolant and a BHR Radiator (I've also had a seized fan swapped out) so I am not particularly concerned about localized boiling in the coolant jackets near the exhaust ports, which is why I presume Mazda only offered a 180F thermostat (along with an apparent deficiency of extreme cold weather testing).
I recall that the FB RX-7 had thermostats available in 180F and 195F; but there does not seem to be a 190F or 195F thermostat on the market for the Series 1 RX-8. I am wondering if it is feasible to swap the core components from a 195F FB thermostat into the housing for an RX-8 thermostat in order to construct a viable 195F Series 1 RX-8 thermostat.
I'm trying to find comparable photos of the two designs to see if this is feasible or not; but it occurred to me that someone might know the answer already.
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