Intercooler pump question.
Melting Slicks<br><img src="/forums/images/ranks/3k-4k.gif" border="0">
Joined: Jul 2002
Posts: 3,055
Likes: 276
From: Enterprise AL
In my ZR1, I got a check engine light and had OnStar read the code. It was a intercooler system fail. I don't remember the exact message that OnStar read, but it was clear enough that it was the intercooler system. In my case, it wasn't the pump, it was the relay for the pump. I'm going to guess that something similar would occur in the C7ZO6. Having a shop manual with all the codes available would certainly help to determine if there is an intercooler failure code on the C7.
Racer
Joined: Jan 2006
Posts: 349
Likes: 65
From: Bowling Green Kentucky
Drifting
Joined: Apr 2015
Posts: 1,276
Likes: 317
Umm...no, the intercooler has its own elec pump and its on a relay. At least on the zr1 this was the case....
Pro
Joined: Jan 2014
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Racer
Joined: Jul 2010
Posts: 344
Likes: 60
From: Houston Texas
Intercooler pump question.
He may build engines but he doesn't know anything about the intercooler system because he's dead wrong. The Z06 has a stand alone intercooler cooling system with its own electric pump just like GM has already been doing for the past several years in the ZR1, ZL1 and CTS-V. The water pump on the engine has nothing to do with the intercooler system. So how can an LT4 engine builder not know this especially when he sees the coolant lines directly on front of the SC when he builds it?
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Racer
Joined: Jan 2006
Posts: 349
Likes: 65
From: Bowling Green Kentucky
Sorry guys.
Melting Slicks
Joined: Jun 2013
Posts: 2,151
Likes: 62
After further research, I stand corrected. I was led to believe that the intercooler was fed by the engines cooling system. We do not see the engine after it leaves the PBC & I have not had the opportunity to look under the hood at an installed LT4. I guess I need to study up a little more on the complete package and not just the engine. Sorry guys.
Sorry guys.
Drifting
Joined: Apr 2015
Posts: 1,276
Likes: 317
After further research, I stand corrected. I was led to believe that the intercooler was fed by the engines cooling system. We do not see the engine after it leaves the PBC & I have not had the opportunity to look under the hood at an installed LT4. I guess I need to study up a little more on the complete package and not just the engine.
Sorry guys.
Sorry guys.
Racer
Joined: Jan 2006
Posts: 349
Likes: 65
From: Bowling Green Kentucky
Thanks y'all for the vote of confidence. I do try to relay to the forum all the information that I can to help you understand your Z & your LT4 & to make your ownership of a World Class Supercar a little more special. Keep the questions coming & know you won't get the Corporate runaround from me, unless GM says no. 
Barry
Barry
Racer
Joined: Jul 2010
Posts: 344
Likes: 60
From: Houston Texas
Intercooler pump question.
After further research, I stand corrected. I was led to believe that the intercooler was fed by the engines cooling system. We do not see the engine after it leaves the PBC & I have not had the opportunity to look under the hood at an installed LT4. I guess I need to study up a little more on the complete package and not just the engine.
Sorry guys.
Sorry guys.
Le Mans Master
Joined: Dec 2005
Posts: 6,999
Likes: 1,685
From: Southeast TX
You want the IAT's as close to ambient air temps as possible. If you were running engine coolant through the intercooler/heat exchanger system, the best you could do IAT wise would be what your thermostat would allow. I'm guessing the LT4's stat to be around 200 degrees. 200 degree intake air temps aren't good if you want to make decent power.
The Consigliere
Joined: May 2006
Posts: 23,003
Likes: 6,045
From: 2023 Z06 & 2010 ZR1
Thanks y'all for the vote of confidence. I do try to relay to the forum all the information that I can to help you understand your Z & your LT4 & to make your ownership of a World Class Supercar a little more special. Keep the questions coming & know you won't get the Corporate runaround from me, unless GM says no.
Barry
Barry
Please know that many of us very much appreciate your contributions to this community.
Race Director
Joined: Jan 2000
Posts: 12,375
Likes: 406
From: Florida
Back to the original question - probably not. But the engine would begin to pull power pretty quickly as the IATs skyrocket. The blower on this car was chosen for packaging considerations. It is not an efficient compressor, adiabatically speaking, and I would not be surprised if the compressed air charge exits the rotors at 300F or more under full boost. So you will know pretty quickly if that intercooler stops working.
Why are you asking anyway?
I can't wait to get my car and start digging into this stuff.
Why are you asking anyway?
I can't wait to get my car and start digging into this stuff.
Last edited by TTRotary; Aug 14, 2015 at 05:32 PM.
Racer
Joined: Jul 2010
Posts: 344
Likes: 60
From: Houston Texas