Some issues from a 2-day HPDE...

spearfish25 · 05-03-2011, 02:16 PM

Quote:

Originally Posted by flashburn

So if that is the case, wouldn't you want to refill the overflow tank when the engine is hot then? It sounds like if you filled it to the top when the engine is cool, then it would overflow above max? I checked the actual radiator level, and it was just about at the top there, just the overflow tank is low.

The level in the tank doesn't change very much when the engine comes up to operating temp. So personally I'd rather have it at MAX with a cold engine, than have it at MIN with a hot engine. There is a lot of extra room in the tank above the MAX point, so it won't overflow.

You may have had some air in your radiator that was finally bubbled out with your high-rpm track day. Then when things cooled, the radiator pulled coolant from the surge tank back into the system and the level dropped. Or you're burning/leaking coolant, but you'd have signs (smoke/puddle).

flashburn · 05-03-2011, 03:57 PM

Quote:

Originally Posted by spearfish25

The level in the tank doesn't change very much when the engine comes up to operating temp. So personally I'd rather have it at MAX with a cold engine, than have it at MIN with a hot engine. There is a lot of extra room in the tank above the MAX point, so it won't overflow.

You may have had some air in your radiator that was finally bubbled out with your high-rpm track day. Then when things cooled, the radiator pulled coolant from the surge tank back into the system and the level dropped. Or you're burning/leaking coolant, but you'd have signs (smoke/puddle).

Okay gotcha. I'll just go ahead and buy some more coolant then. Any other places besides directly from Nissan to buy the coolant from?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Oil change after 2-day HPDE?	flashburn	Track / Autocross / Drifting / Dragstrip	31	04-26-2011 05:22 PM
Question about HPDE	BalanBro	Nissan 370Z General Discussions	8	02-08-2010 07:01 PM
Registered for my first HPDE (TrackDaze VIR - Nov 16/17)	MightyBobo	Mid-Atlantic Region	52	12-14-2009 04:13 PM
thinking of buying 370z, then GTM turbo's , but overheat issues,oil issues ??	Christopher	Nissan 370Z General Discussions	19	10-16-2009 03:55 PM
Initial Z issues that are now non-issues......	cave vulture	Nissan 370Z General Discussions	1	09-06-2009 10:19 PM