My Reroute drawing
02-25-2009, 07:54 PM
#66
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How about a spacer like the one talked about in this thread? It ould have a port for the heater and the temp sensor plus a grove for the thermostat. We would cap it with the standard thermostat housing from the front of the motor. then we would just need a tee added to the pipe going ot the radiator for the heater to return too?
How must would something like that cost?
Also guys why not add a vavle to cut off the heater return when we are on the track?
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02-25-2009, 08:06 PM
#68
Boost Czar
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I agree, I've suggested that a spacer with a m12x1.5 bung and small pipe for the heater core, machined to accept a thermostat would sell well.
I'll post pic of how I drilled (by drilled I mean will be this weekend) your spacer, steph.
I'll post pic of how I drilled (by drilled I mean will be this weekend) your spacer, steph.
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02-26-2009, 08:23 AM
#69
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Adding a simple 90° ball valve would be quite easy, and require nothing special on the part of the spacer itself. Just plumb it in series with the feed into the heater core. I'd think you'd not want to ever close it all the way, as this would deprive the block of flow when the thermostat is closed. Even in a race environment, there are going to be times (hopefully) when the thermostat is not wide open, and you don't want to stagnate the coolant during these periods.
That's the real catch-22 here; balancing the desire to not return hot coolant into the mixing manifold vs. the practical requirement of maintaining circulation when the thermostat is closed.
If you really wanted to get fancy, you could locate an electronic solenoid valve (similar to those used in zoned lawn sprinkler control) to shut off the flow of coolant to the heater core when the temperature is above some limit (say, 210°, for instance) and then re-open it when the temperature falls.
For the rest of us, I'm liking the spacer with thermostat & outlet, and a restrictive orifice feeding the heater. From a flow standpoint, that's just about a perfect 323 clone.
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02-26-2009, 09:41 AM
#71
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323gtx design is the original
Aside from speculation based on observation, do we have any empirical data to show that there is more circulation between the water pump and the radiator then through the rest of the engine?
Basically what I am saying is, what if there is a restriction built into the path between the pump and the front neck to prevent over circulation of water?
I understand the re-route solves over heating issues on track cars, even though I only heard of maybe 3 such incidents on this forum. However, could it be possible that factory design of the coolant system was intended to maintain proper operating temps. While the re-route on average drops those temps?
In my mind, and I could be wrong, a properly functioning engine cooling system is the one that keeps the engine at the optimal operating temp in all driving conditions basically removing the possibility of large temperature swings.
I equate this too CPU cooling, the best heatsinks arent the one that keeps the processor the coolest, its the one that keeps the processor at its proper temperature under every load condition.
I understand the 323gtx was done differently, and it was the homologation of rally car. I can understand mimicking the reroute for race use, but wouldnt it hurt(and i use that lightly) the engine, if its driven in any other conditions with sub optimal operating temperatures.
Basically what I am saying is, what if there is a restriction built into the path between the pump and the front neck to prevent over circulation of water?
I understand the re-route solves over heating issues on track cars, even though I only heard of maybe 3 such incidents on this forum. However, could it be possible that factory design of the coolant system was intended to maintain proper operating temps. While the re-route on average drops those temps?
In my mind, and I could be wrong, a properly functioning engine cooling system is the one that keeps the engine at the optimal operating temp in all driving conditions basically removing the possibility of large temperature swings.
I equate this too CPU cooling, the best heatsinks arent the one that keeps the processor the coolest, its the one that keeps the processor at its proper temperature under every load condition.
I understand the 323gtx was done differently, and it was the homologation of rally car. I can understand mimicking the reroute for race use, but wouldnt it hurt(and i use that lightly) the engine, if its driven in any other conditions with sub optimal operating temperatures.
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02-26-2009, 09:50 AM
#73
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Please correct me if i'm wrong, but isn't there a MAZDA thermostat holder with the outlet at an appropriate angle that will fit on the original thermostat location on the back of the head? I think that it is one from a Protege or 323.
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02-26-2009, 10:04 AM
#77
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Best pic I have.
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02-26-2009, 10:37 AM
#78
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If I am out of line and cutting flow through the heater will **** something up let me know, but would I still have water bypassing the thermostat for the Oil heater and turbo cooling lines?
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02-26-2009, 10:38 AM
#80
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Since I am in TX I really would like to take the heater out of the system on the track. I really do not think the thermostat will close while running laps under boost when it is 100 plus on the track.
If I am out of line and cutting flow through the heater will **** something up let me know, but would I still have water bypassing the thermostat for the Oil heater and turbo cooling lines?
If I am out of line and cutting flow through the heater will **** something up let me know, but would I still have water bypassing the thermostat for the Oil heater and turbo cooling lines?
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