2017 secondary radiator smaller than prior GMPP secondary radiator?
Thread Starter
Safety Car
Joined: Aug 2005
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From: Tulsa Oklahoma
2017 secondary radiator smaller than prior GMPP secondary radiator?
A friend of mine saw the 2017 Z06 on it's side display at SEMA. He previously installed one of the original GMPP secondary radiators, part no. 84037858 on his 2016.
He stated the 2017 secondary radiator which comes installed from the factory is smaller than his. The 2017 secondary radiator has a different part no, 84201727. Also, this new part number supercedes the original part number.
Anybody have a means of confirming by measuring or any knowledge of a change?
He stated the 2017 secondary radiator which comes installed from the factory is smaller than his. The 2017 secondary radiator has a different part no, 84201727. Also, this new part number supercedes the original part number.
Anybody have a means of confirming by measuring or any knowledge of a change?
Last edited by rikhek; Nov 23, 2016 at 11:37 AM.
Tech Contributor
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From: Charlotte, NC (formerly Endicott, NY)
The part number difference may be because the GMPP Part number is for a kit that includes the radiator while the part number for the unit installed in the 17 cars may only be for the radiator itself.
Bill
Bill
Le Mans Master
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From: Admit Nothing, Deny Everything, Make Counter Accusations.
Part numbers change all the time even if the design of the part hasn't changed. I was told this is a result of GM using a different supplier for the part.
Thread Starter
Safety Car
Joined: Aug 2005
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From: Tulsa Oklahoma
Sorry guys but I screwed up. My friend says his 2016 OEM oil cooler looks smaller than the 2017, not the secondary radiator. FWIW, my friend owns a very respectable race shop, Mike Levitas/TPC Racing. He has a good eye for minute detail and I don't discount his observation. He thinks they might have changed the oil cooler to get water temp quicker and maintain the temp for emissions. I'll get measurements of his and compare to mine.
FWIW, I'm pretty well versed in the practice of changing part numbers even though the parts are identical but I do appreciate the input.
FWIW, I'm pretty well versed in the practice of changing part numbers even though the parts are identical but I do appreciate the input.
Last edited by rikhek; Nov 23, 2016 at 07:21 PM.
Drifting
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Not sure why GM didn't care to share the details of all the little changes. Even Tadge limited his answer on 2017 updates to supercharger talk. Couple of weeks back there was a 2017 and 2015 M7 Z06 at the track running same laptimes and 2017 was running much Lower temps overall. Water was 215F vs 245F on 2015. I am sure 2015 would have ran much cooler if it had the secondary radiator but 30F difference can't be from just secondary radiator alone.
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Melting Slicks
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From: Syracuse-Central Square New York Winer of the all Corvette race WGI 8/23!
^ ZL1, Interesting, so GM decided it wasn't a good idea to mount the oil cooler inches from the cat as they do on the most capable track car!
Rick, There is a different style floating around on a GM product as I've seen photos of its Shaped more like a diamond than a brick. I have seen the 17 cooler and it appears identical the 15 and 16 Z's.
We have a 2016 BMW X1 apart in the shop. There 2 of these type coolers on the car. The Germans seem to think they work.
Happy Thanksgiving guys
Rick, There is a different style floating around on a GM product as I've seen photos of its Shaped more like a diamond than a brick. I have seen the 17 cooler and it appears identical the 15 and 16 Z's.
We have a 2016 BMW X1 apart in the shop. There 2 of these type coolers on the car. The Germans seem to think they work.
Happy Thanksgiving guys
Team Owner
Joined: Aug 2011
Posts: 21,587
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From: GREER SC
A friend of mine saw the 2017 Z06 on it's side display at SEMA. He previously installed one of the original GMPP secondary radiators, part no. 84037858 on his 2016.
He stated the 2017 secondary radiator which comes installed from the factory is smaller than his. The 2017 secondary radiator has a different part no, 84201727. Also, this new part number supercedes the original part number.
Anybody have a means of confirming by measuring or any knowledge of a change?
He stated the 2017 secondary radiator which comes installed from the factory is smaller than his. The 2017 secondary radiator has a different part no, 84201727. Also, this new part number supercedes the original part number.
Anybody have a means of confirming by measuring or any knowledge of a change?
Melting Slicks
Joined: Feb 2015
Posts: 2,118
Likes: 451
From: Syracuse-Central Square New York Winer of the all Corvette race WGI 8/23!
Thanks Joel.
Melting Slicks
Joined: May 2015
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From: Washington
I didn't think about that. I completely forgot the ZL1 has a wet sump LT4. In that case, does anyone else think the CTS-V which also has the wet sump LT4 iirc also has the larger oil cooler?
Last edited by four0nefive; Nov 24, 2016 at 04:23 PM.
Racer
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From: Thunder bay Ontario
Not sure why GM didn't care to share the details of all the little changes. Even Tadge limited his answer on 2017 updates to supercharger talk. Couple of weeks back there was a 2017 and 2015 M7 Z06 at the track running same laptimes and 2017 was running much Lower temps overall. Water was 215F vs 245F on 2015. I am sure 2015 would have ran much cooler if it had the secondary radiator but 30F difference can't be from just secondary radiator alone.
Thread Starter
Safety Car
Joined: Aug 2005
Posts: 3,968
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From: Tulsa Oklahoma
The part number, 12659714, on the 2016 Z06 oil cooler in the discussion is the same as the one pictured by Maddog from his 2017.
Makes me think Levitas was wrong and it's the same.
Makes me think Levitas was wrong and it's the same.
Racer
Joined: May 2005
Posts: 279
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