summer is coming in texas and I'm going to do the following "reliability" mods to the car...
I'm open for suggestion if I overlooked on something.

1) oil cooler: mocal adapter with thermostat, setrab 6 series, 19 rows.
2) water: nismo radiator cap (I haven't found any radiator for the HR engine)
3) nismo power steering cooler
4) spa techniques dual temperature gauge to keep water and oil under control.

does anybody knows if the nismo thermostat for the water works on the HR engine?
looks like it is the same...

 

#3 - you can save some green and do your own:

https://my350z.com/forum/engine-driv...ng-cooler.html
https://my350z.com/forum/engine-driv...ng-cooler.html

-J

 

I did look at your DIY... but I don't have a garage.. I'm still a FOB somehow...and I prefer the easy solution of using an experienced tech

 

Questions:

1. Have you had problems with power steering fluid overheating?

2. Does the VQ35HR motor use a different radiator size than the VQ35DE? If it's the same, the Koyo 54mm one should fit (I have this one).


Comment: I'm not convinced that a thermostat actually helps with cooling. I know it makes the coolant start cooling at a lower temp, but if your engine is generating more heat than the cooling system can transfer out, then a thermostat is literally delaying the inevitable. Picture a graph of engine temperature over time. The slope of the line is the same, it just starts off lower - if this makes sense. If this delay is enough for your use case (a 20 minute HPDE session), then maybe it is in fact a solution. But I think the real solution is to either make the cooling system transfer more heat out, or make the engine generate less heat (better oil? richer tune? less timing?), or both.

 

not so far at TWS, but was bad at GSS (more turns, less speed, less straight)... and in order to go with R compounds... you know, when the bumper is down, the fluid is due for a change... why not.

yep, completely different radiator... that would be a nice "project" to find out which one will fit.

I completely agree with your statement... so far, and I repeat.. SO FAR.. never seen the needle of the water going over "half" or in the danger zone...
but we know.. that is fake and I'm installing a real gauge to see it.
and yes, being a 20 minutes HPDE the "target" I think it will be enough.

I already have the guys at uprev tuning for "reliability" making the tune on the rich side and not too extreme.
I'll be up there soon to review the tune after the test pipes... I don't want to discover in the hard way that my A/F went to 15:1 from the metallic HFC.