SE UPGRADE KIT

[Casey]

The heating issue on tracked turbo MX5s is pretty universal, (whether SE or SP), I guess thats why the serious guys appear to do the coolant bypass mod in an attempt to address it.

Huh? What cooling isues with SPs on the track?

I am surprised with how cool mine stays on the track even with the $2 mod (and therefore a boost increase) in place. I even went and installed a real water temp gauge because I didnt believe the factory "dead spot" version, but even the linear gauge shows a fairly constant temp.

More serious units like Mania's I can understand though, they are running considerably more boost than us.

The two Carco SP replicas (one just over and the other just under 200kW) running 1:09s and 1:11s at Wakefield don’t seem to be having any cooling issues aside from the power steering. Indeed one of the Canberra SPM kitted SEs has also had power steering cooling issues, but no other problems.

The two Carco SP replicas also only run SE radiators – a lot cheaper then the (bigger) SP PWR radiator.

FWIW my SP with the $2 mod and Chiptorque re-map (runs a modest 1:13) has never had a cooling issue, power steering or otherwise.

[CT]

There are a number of causes but a very simple one is intercooler design, another one is tune quality, another one is ducting of air, another one is water pump control, boiling point of coolant, radiator design, etc, etc

Supersprints do not put the same stress on the engine heatwise as much as racing. Problem is that when you are racing, you never get clean air unless you are lonely. My temp drops when in clear, cooler air. When battling at high revs in a car's hot wake, my temp is always higher. That said, every little improvement has helped.

[Garry]

Speaking of power steering temperatures, while playing around in the front of the car with my A/C I was amazed at how hot the power steering cooler gets with just a gentle drive around the block. It must get pretty toasty on a long fang through somewhere like the Oxley Hwy.