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Why keep the factory intercooler reservoir?

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Old 11-27-2016, 01:50 PM
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383vett
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Default Why keep the factory intercooler reservoir?

I am running a Granatelli intercooler expansion tank. Is there any reason to retain the factory reservoir with the air bubble? It would be easy to bypass by connecting the two hoses.
Old 11-27-2016, 04:29 PM
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you can delete it if you wish, but if filled correctly why not have the added capacity it provides. Bleeding these cars seems to be tough for a lot of people and if you back fill it, the system is really quite easy. Our heat exchanger we make though does give you an added bleed point on top of the unit to make the process even easier.
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Old 11-27-2016, 07:02 PM
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383vett
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Originally Posted by Joe@CPR
you can delete it if you wish, but if filled correctly why not have the added capacity it provides. Bleeding these cars seems to be tough for a lot of people and if you back fill it, the system is really quite easy. Our heat exchanger we make though does give you an added bleed point on top of the unit to make the process even easier.
Can you or anyone else elaborate on the vacuum backfill procedure? I understand vacuum is used to suck up the coolant filled from below. Where is it filled from below. I thanks.
Old 12-02-2016, 11:38 PM
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Bill posted it I think from the GM manual
Old 12-03-2016, 06:03 AM
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You vacuum out all the air and then the filling/vacuum device has a valve that changes the system to filling. It all happens from above through the single jiffytite fitting. The system is completely drained from the stopcock on the factory reservoir before starting the vacuum then filling procedure.

Last edited by spearfish25; 12-03-2016 at 06:04 AM.
Old 12-05-2016, 02:00 PM
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Default GM manual

Originally Posted by tracer3030
Bill posted it I think from the GM manual
Could I get a link to that? I have searched, but must be doing something wrong, I haven't been able to locate it. I think I have some air in my SC cooling system and need to know how to address it.
Thanks.
Old 12-05-2016, 03:22 PM
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Originally Posted by spearfish25
You vacuum out all the air and then the filling/vacuum device has a valve that changes the system to filling. It all happens from above through the single jiffytite fitting. The system is completely drained from the stopcock on the factory reservoir before starting the vacuum then filling procedure.
Thanks, So the whole system is filled from above after the vacuum?
Old 12-05-2016, 04:25 PM
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spearfish25
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Originally Posted by 383vett
Thanks, So the whole system is filled from above after the vacuum?
Yeah, that's right. Same fitting. You just change a valve to allow the vacuum in the system to pull in fluid from an external container.
Old 12-05-2016, 05:02 PM
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Originally Posted by spearfish25
Yeah, that's right. Same fitting. You just change a valve to allow the vacuum in the system to pull in fluid from an external container.
That answers my question. Do you have the official vacuum tool or the Amazon vacuum device as seen on another thread?
Old 12-06-2016, 02:54 AM
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LagunaSecaZ06 Bleeding / Purging the Corvette Z06 Intercooler video
Here is a video of how I bled my 2016 Corvette Z06 after I installed my intercooler tank. I used the GSpeed intercooler override tool which it makes it much easier. It is also possible to do this without the tool, which I show later in the video. This method does require a $3 piece of 1" inside diameter vinyl tubing which will make a lot sense when you watch the video. The tubing is available from most hardware stores. The same process could probably be used for the ZR1, Camaro ZL1 and Cadillac CTSV.

Check out his video
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Old 12-06-2016, 12:13 PM
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Originally Posted by tracer3030
LagunaSecaZ06 Bleeding / Purging the Corvette Z06 Intercooler video
Here is a video of how I bled my 2016 Corvette Z06 after I installed my intercooler tank. I used the GSpeed intercooler override tool which it makes it much easier. It is also possible to do this without the tool, which I show later in the video. This method does require a $3 piece of 1" inside diameter vinyl tubing which will make a lot sense when you watch the video. The tubing is available from most hardware stores. The same process could probably be used for the ZR1, Camaro ZL1 and Cadillac CTSV.

Check out his video
Is there a link to this video? Thanks for posting.
Old 12-06-2016, 10:40 PM
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https://www.corvetteforum.com/forums...=lagunaSecaZ06
Old 12-07-2016, 06:27 AM
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Originally Posted by 383vett
That answers my question. Do you have the official vacuum tool or the Amazon vacuum device as seen on another thread?
I haven't bought anything yet. So far, I haven't needed to vacuum fill the system (I've never opened or drained it).

If you're leaving the OEM reservoir and don't vacuum fill the system, a large air bubble will remain in the OEM reservoir and you could have cavitation issues. This would be particularly relevant to road course use with high lateral Gs.

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