jonny mac Posted January 25, 2017 Share Posted January 25, 2017 has anyone got an aftermarket coolant swirl pot on their supra? I'm considering adding one onto my build (2jz s14) because I've had trouble bleeding the previous engine before, I think a rad cap located at the highest point in the engine bay would be great, it would also allow for no more air to be trapped, deaerated I can't find any install documents 2jz specific online as they all seem to be for sr20's and so on the engine sits so far back in my car that there isn't any room for heater matrix pipework to go by, this means it has to go over the rocker covers and resulting in a higher point in the system than the rad cap, makes bleeding it fun... ideally I'd like to know where people take the 'from engine' feed from? is ok to use the pipework that comes from head for the idle control valve and throttle body the only downside is a small amount of coolant won't be going through the rad if it falls back into the lower hose? Quote Link to comment Share on other sites More sharing options...
Scooter Posted January 25, 2017 Share Posted January 25, 2017 The matrix pipes go over the cam covers as standard. I put an inline bleed valve in one of them when I thought I had a bleeding issue, turns out it was a partially blocked matrix, but it makes it easy to bleed. Quote Link to comment Share on other sites More sharing options...
Wez Posted January 25, 2017 Share Posted January 25, 2017 Are you running a heater matrix? If not cant you just cap the ports off? Quote Link to comment Share on other sites More sharing options...
jonny mac Posted January 25, 2017 Author Share Posted January 25, 2017 yeah i've had one up there before but wasn't too keen on it tbh, didn't feel like it made much difference the car needs to have a heater matrix as i live in scotland and our weather isn't up to much... haha Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted January 25, 2017 Share Posted January 25, 2017 Coolant swirl pots are generally intended for high RPMs as the water pump can cause cavitation at high RPM which gives rise to air locks in the system, so rather over kill on a road car. Quote Link to comment Share on other sites More sharing options...
np89 Posted January 25, 2017 Share Posted January 25, 2017 If you're having issues bleeding a 2J there's something wrong with it Jonny. Sorry to say but they are the easiest engine to bleed ever. Quote Link to comment Share on other sites More sharing options...
Clausz Posted January 28, 2017 Share Posted January 28, 2017 I see quite a lot of the drifting cars with 2jz, who welds in a bleeding and topping tank on the waterneck: Quote Link to comment Share on other sites More sharing options...
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