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Does a z06 oil cooler restrict airflow?

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Old Feb 2, 2018 | 12:06 PM
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Default Does a z06 oil cooler restrict airflow?

Does adding a z06 oil cooler restrict airflow to the radiator?
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Old Feb 2, 2018 | 12:26 PM
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Not enough to warrant concern.
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Old Feb 3, 2018 | 08:27 AM
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But to answer the question, yes.

Anything stacked in front of the radiator is going to restrict airflow.

That is assuming you are talking about the z06 air/oil cooler and not the water one on 2010+ models.
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Old Feb 9, 2018 | 07:09 PM
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Yes. Get a Ron Davis Z06 radiator and a 2005 Z51 oil cooler pipe assembly.
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Old Feb 9, 2018 | 09:09 PM
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If your coolant temps are already a concern based on your use of the vehicle, adding one certainly wont help in that category. Hard to say if you'd see a measurable difference though without knowing more.

Last edited by MTPZ06; Feb 9, 2018 at 09:09 PM.
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Old Feb 10, 2018 | 05:15 PM
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Originally Posted by edean
Does adding a z06 oil cooler restrict airflow to the radiator?
Yes, of course it does. But that said, it's very unrestrictive compared to aftermarket coolers. It's very thin and the rows aren't very densely spaced.
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Old Feb 11, 2018 | 04:35 PM
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Scrap it, move it, get a good after market and put a fan on it and your transmission will last forever.
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Old Feb 12, 2018 | 05:06 PM
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Originally Posted by 3X2
Yes. Get a Ron Davis Z06 radiator and a 2005 Z51 oil cooler pipe assembly.
How would that work? The 2005/06/07 Z51 has the transmission (manual and auto) and engine oil cooler in the water radiator and the Z06 only has the trans/diff cooler in the water radiator, so you would be short a connection.

I went the other way and got a Z06 (2007) oil cooler and a Z07 (2011) all aluminum radiator that accepts the trans/diff cooler lines.
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Old Feb 12, 2018 | 05:11 PM
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Originally Posted by timd38
How would that work? The 2005/06/07 Z51 has the transmission (manual and auto) and engine oil cooler in the water radiator and the Z06 only has the trans/diff cooler in the water radiator, so you would be short a connection.

I went the other way and got a Z06 (2007) oil cooler and a Z07 (2011) all aluminum radiator that accepts the trans/diff cooler lines.
I believe he's recommending a Ron Davis with a TOC and an EOC, and the Z51 lines are shorter than the OE C6Z lines to the air-cooled oil cooler...just to make for a cleaner install.

I went the OE ZR1 radiator w/ Zr1 oil cooler route myself.

Last edited by MTPZ06; Feb 12, 2018 at 05:12 PM.
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Old Feb 12, 2018 | 05:38 PM
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Originally Posted by MTPZ06
I believe he's recommending a Ron Davis with a TOC and an EOC, and the Z51 lines are shorter than the OE C6Z lines to the air-cooled oil cooler...just to make for a cleaner install.

I went the OE ZR1 radiator w/ Zr1 oil cooler route myself.
The ZR1 and Z07 radiators are same except for the way the hoses connect. They are the only all aluminum factory radiators. The base and Z06 radiators with those plastic tanks, tend to crack.
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Old Feb 12, 2018 | 05:39 PM
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2005 Z51 was the only year with a eoc built into the radiator. Starting in 2006, a shorter version of the Z06 external cooler was used. Adding another cooler in front of the air conditioning condenser just impedes airflow to the radiator that much more.
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Old Feb 12, 2018 | 05:49 PM
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Originally Posted by 3X2
2005 Z51 was the only year with a eoc built into the radiator. Starting in 2006, a shorter version of the Z06 external cooler was used. Adding another cooler in front of the air conditioning condenser just impedes airflow to the radiator that much more.
Nope my 2006 Z51 had it in the water Radiator, they changed in 2008.

I bought it new, so I know it to be fact.
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Old Feb 12, 2018 | 05:55 PM
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Originally Posted by timd38
The ZR1 and Z07 radiators are same except for the way the hoses connect. They are the only all aluminum factory radiators. The base and Z06 radiators with those plastic tanks, tend to crack.
Correct...so I had to source a ZR1 upper rad hose when I converted mine. Little known fact is that the OE ZR1 & Z07 actually utilize a Griffin core.

It was a win-win for me that I not only cured the low oil temp issues on the street, I also got a much, much better radiator over my OE unit.
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Old Feb 12, 2018 | 05:58 PM
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Originally Posted by MTPZ06
Correct...so I had to source a ZR1 upper rad hose when I converted mine. Little known fact is that the OE ZR1 & Z07 actually utilize a Griffin core.

It was a win-win for me that I not only cured the low oil temp issues on the street, I also got a much, much better radiator over my OE unit.
Euclid in Eastern MI made them. I had a friend that was CEO of an OE radiator company and he sent me.

I have to block my Z06 oil cooler to get oil temp on 50 degree days.
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Old Feb 12, 2018 | 06:08 PM
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Originally Posted by timd38
Euclid in Eastern MI made them. I had a friend that was CEO of an OE radiator company and he sent me.
Makes sense that they had them fab'ed up locally.

Originally Posted by timd38
I have to block my Z06 oil cooler to get oil temp on 50 degree days.
Ah...So you're not utilizing the rad's integrated EOC for your car, you're using an OE front mounted oil cooler.

Last edited by MTPZ06; Feb 12, 2018 at 06:18 PM.
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Old Feb 12, 2018 | 06:09 PM
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Originally Posted by timd38
Nope my 2006 Z51 had it in the water Radiator, they changed in 2008.

I bought it new, so I know it to be fact.
DOH!!!! had senior moment.
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Old Feb 12, 2018 | 06:41 PM
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Originally Posted by MTPZ06
Makes sense that they had them fab'ed up locally.



Ah...So you're not utilizing the rad's integrated EOC for your car, you're using an OE front mounted oil cooler.
Correct.
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