Guest zfan Posted April 22, 2002 Share Posted April 22, 2002 Ok I now have gauges installed in my 350 Z. The old ones were crapping out. I am running a 160 degree thermostat and car runs around 160 to 165. If Im not mistaken this is way too cool for optimum performance. I was told to run it around 190 to 200. this may be why the car has been running crappy and leaving me dissapointed in my new motor. What temp are you all running? What is optimum temp. zfan..Mike Quote Link to comment Share on other sites More sharing options...
Tim240z Posted April 22, 2002 Share Posted April 22, 2002 Mike, I seem to remember a super long thread that was started a while back where Grumpy gave some pretty good insight into this very topic. I believe it was even in this section. Try a search on the topic....If I find it first I'll post you a link. Tim Quote Link to comment Share on other sites More sharing options...
grumpyvette Posted April 22, 2002 Share Posted April 22, 2002 USE MOBILE 1 SYNTHETIC oil its perfectly happy and will not break down at temps up to 260f degs.(and can handle 275 degs for short periods (days at a time but not constantly) with no damage to the oil)BTW you need oil temps of about 215f degs minimum to burn off impurities in the oil so try for oil temps of 215f degs, water temps of 180-200f degs.(lower oil and water temps cost you power) and thats from SMOKEY YUNICKS RESEARCH FOR G.M. RACING AND NASCAR RACING ENGINES on whats best for long term engine wear and power production!! and even normal mineral base oil can run 225-230f degs for weeks without significant break down!(but above 240 degs it starts to break down) to quote SMOKEY,"the best mineral oils flash(burn)at 320 degs f but a good synthetic can withstand operating temps as high as 500 degs f for hours" BTW SMOKEY WAS TALKING ABOUT OIL TEMPS on the bearing surfaces not in the sump. try for that 260f max sump temp. http://www.chevytalk.org/forums/Forum64/HTML/008595.html http://www.chevytalk.org/forums/Forum64/HTML/007261.html http://www.chevytalk.org/forums/Forum64/HTML/006365.html Quote Link to comment Share on other sites More sharing options...
Guest zfan Posted April 22, 2002 Share Posted April 22, 2002 Ok, would I be better off running a 180 or a 195. I do live in Dallas Tx. And it gets hotter than heck in the summer. The car is a sometimes daily driver but mainly weekend play car. Im running a Griffith aluminum 19x24 radiator with Taurus two speed fan. Sounds like 190 or ballpark for temp. Thanks to all, Mike Quote Link to comment Share on other sites More sharing options...
Mike C Posted April 22, 2002 Share Posted April 22, 2002 While investigating this further, I would install an oil temp gauge. Probably the second most important guage after the oil pressure one. Quote Link to comment Share on other sites More sharing options...
grumpyvette Posted April 23, 2002 Share Posted April 23, 2002 I really don,t think it will make a great deal of differance but after several years of testing I settled on a 195deg thermostat for my vette, it runs just a little bit better than the 180 deg thermostat, btw I hope you read these,all the way through, theres good info in them. http://www.chevytalk.org/forums/Forum64/HTML/008595.html http://www.chevytalk.org/forums/Forum64/HTML/007261.html http://www.chevytalk.org/forums/Forum64/HTML/006365.html Quote Link to comment Share on other sites More sharing options...
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