Z51 Oil Temps
Thread Starter
Melting Slicks
Joined: Dec 2011
Posts: 2,209
Likes: 16
From: Yorktown Heights NY
Z51 Oil Temps
I have an '07 coupe with Z51 option. I believe there is a factory Oil and Tranny cooler (built into the radiator?) as well as an external Power Steering cooler.
1. Is this correct..?
2. My oil temp is running around 220-230 on local road twisties with ambient temp still in the 60s... How high is this going to get when I do the track (HPDE)??
3. What high-side oil temp should cause concerns?? I understand the oil really start to work at around 200-215..
Comments?? Thanks!
1. Is this correct..?
2. My oil temp is running around 220-230 on local road twisties with ambient temp still in the 60s... How high is this going to get when I do the track (HPDE)??
3. What high-side oil temp should cause concerns?? I understand the oil really start to work at around 200-215..
Comments?? Thanks!
Drifting
Joined: Apr 2006
Posts: 1,276
Likes: 5
From: Ambler Pa.
I have an '07 coupe with Z51 option. I believe there is a factory Oil and Tranny cooler (built into the radiator?) as well as an external Power Steering cooler.
1. Is this correct..?
2. My oil temp is running around 220-230 on local road twisties with ambient temp still in the 60s... How high is this going to get when I do the track (HPDE)??
3. What high-side oil temp should cause concerns?? I understand the oil really start to work at around 200-215..
Comments?? Thanks!
1. Is this correct..?
2. My oil temp is running around 220-230 on local road twisties with ambient temp still in the 60s... How high is this going to get when I do the track (HPDE)??
3. What high-side oil temp should cause concerns?? I understand the oil really start to work at around 200-215..
Comments?? Thanks!
Thread Starter
Melting Slicks
Joined: Dec 2011
Posts: 2,209
Likes: 16
From: Yorktown Heights NY
Carl.. this is an automatic tranny cooler.. I have a manual... I think the factory oil cooler is inside the under sized radiator.. Maybe an external oil cooler?? (and the 160deg stat mentioned as well)...
Thread Starter
Melting Slicks
Joined: Dec 2011
Posts: 2,209
Likes: 16
From: Yorktown Heights NY
I just read on C6 Performance Corvette's page that the 2007-2009 Z51 package did NOT have a EOC option?? Is this true.. does my 2007 Z51 car not have any additional EOC built into the radiator?? Anybody know. I'm thinking about adding an aftermarket oil cooer.
Safety Car
Joined: Nov 2007
Posts: 4,436
Likes: 875
From: Bay Area CA
My oem 2008 Z51 has: External engine oil cooler, External power steering fluid cooler and an integrated cooler with the radiator for the manual transmission oil.
Last edited by Mike's LS3; Apr 6, 2012 at 11:15 AM.
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Thread Starter
Melting Slicks
Joined: Dec 2011
Posts: 2,209
Likes: 16
From: Yorktown Heights NY
Yeah, I gotta install the t-stat. but I don't know how much it will do without the fan adjustments (with a tune).. it's all 'on the list'... just trying to sort out the order of things. I will put in the stat myself shortly and see if without any programming it makes any difference in the running oil temps..
Track Junky
Joined: Jun 2007
Posts: 4,075
Likes: 36
From: Orlando Area
Tech Contributor
My old 485 rwhp LS2 saw 205-225F oil temps around town and 270+F on the track while short shifting. Had to take cool down laps in the middle of the session. Swapped oil to Amsoil Zrod 10w-30 and added a Z06 oil cooler and now see ~265 on the track shifting at redline with no cool down laps. I ran Mobile1 0w-40 for a few events and saw about 5F less that the Amsoil temps, but that cold have been me not pushing the car as hard.
Hope that helps.
Hope that helps.
Thread Starter
Melting Slicks
Joined: Dec 2011
Posts: 2,209
Likes: 16
From: Yorktown Heights NY
are you talking coolant temps or oil temps here?? 196 sounds low for oil temp to me... not sure??
Thread Starter
Melting Slicks
Joined: Dec 2011
Posts: 2,209
Likes: 16
From: Yorktown Heights NY
My old 485 rwhp LS2 saw 205-225F oil temps around town and 270+F on the track while short shifting. Had to take cool down laps in the middle of the session. Swapped oil to Amsoil Zrod 10w-30 and added a Z06 oil cooler and now see ~265 on the track shifting at redline with no cool down laps. I ran Mobile1 0w-40 for a few events and saw about 5F less that the Amsoil temps, but that cold have been me not pushing the car as hard.
Hope that helps.
Hope that helps.
Melting Slicks
Joined: Nov 2010
Posts: 2,626
Likes: 195
From: On the east coast we drive until we die
That's news to me. I'm not sure why they'd have an EOC in '05-'06, stop in '07-'09, and then start again in '10. I have seen the external EOC on '08s so I don't believe the info you read is correct. I also have an '07 Z51 and assumed there was an EOC inside the radiator. I thought I recalled seeing some extra lines coming out of the radiator last time I was under there(?)
Track Junky
Joined: Jun 2007
Posts: 4,075
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From: Orlando Area
Tech Contributor
Safety Car
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From: Bay Area CA
Race Director
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From: Hudson WI
NCM Sinkhole Donor
Safety Car
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From: TEXOMA
St. Jude Donor '08-'09
I have two 06 z51's, m6 and a6 both have engine and trans coolers in the radiator, with external p/s coolers.
-Carl
Drifting
Joined: Sep 2004
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From: S.D. CA