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Rosco's track car Recirculating tank


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Its been a while sense I've posted here so I thought I'd throw these pics up. 

 

I'll preface this by saying I'm running a 3.2 Rebillo motor on 110 with ITB's and an Adaptronic ECU. 5 speed 240sx trans with a 5.5" clutch and a flex plate. 4.11 final drive with some Hoosier R7's

 

I was having an issue pushing water out of the radiator during race like conditions. Only happened after several laps at full tilt.  Not sure if I'm getting exhaust gas pushing by the head gasket or what. I did a test on the coolant to see if gas was present and it was negative but I'm not sure how accurate those auto zone test kits are. The other strange thing is the system wouldn't suck the water back in from the catch can after it cooled down.

 

So… we decided to look into a recirculating system. We took a trip to the junkyard and scored this tank. I made some brackets for it and mounted it. I have an inline filler on the upper radiator hose that has a overflow outlet, I connected the inlet on the tank to the outlet on the filler neck and installed a 0 PSI radiator cap there. I have a 15 PSI cap on the recirculating tank. The outlet on the tank goes where the heater return line would normally go. I ran this setup at VIR full a couple weekends ago. Everything seems to work great, it built pressure as it should and cleared air out of the system.

    

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What was the donor, and what was your hose routing schematic?

I found the tank out of a Satern View to be the correct size and hose configuration. Probably an early 2000's model, I don't remember what year exactly.

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Here's what came out of the BSR 240 car. Note the "T" welded to the top of the thermostat cover. It connects the top of the radiator to the thermostat and then to the slightly higher expansion tank. Overflow from that go to a catch can mounted in front of the radiator.

Radiator gets a high pressure cap (35lbs) and the expansion tank get an 18.

 

 

 

 

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Here's what came out of the BSR 240 car. Note the "T" welded to the top of the thermostat cover. It connects the top of the radiator to the thermostat and then to the slightly higher expansion tank. Overflow from that go to a catch can mounted in front of the radiator.

Radiator gets a high pressure cap (35lbs) and the expansion tank get an 18.

very nice setup, thanks for the info

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  • 2 weeks later...

Here's what came out of the BSR 240 car. Note the "T" welded to the top of the thermostat cover. It connects the top of the radiator to the thermostat and then to the slightly higher expansion tank. Overflow from that go to a catch can mounted in front of the radiator.

Radiator gets a high pressure cap (35lbs) and the expansion tank get an 18.

Anyway you can send me more pictures of your cooling system set up? Thank you

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