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#1611315 - 09/11/2017 19:43 Water Charge cooling on a coupe thoughts
leighgreen Offline
Reaping the fruits

Registered: 18/05/2010
Posts: 64
Loc: uk
Has anybody water charged cooled a coupe before I'm thinking of doing mine any thoughts info would be appreciated

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#1611335 - 10/11/2017 08:12 Re: Water Charge cooling on a coupe thoughts [Re: leighgreen]
Mark_S Offline
Forum is my job

Registered: 19/12/2005
Posts: 4742
Loc: Haslemere, Surrey
Yes was done years ago. You could try the search engine to find old threads?

Actually might have been on Nigel's car; he is still around on here.


Edited by Mark_S (10/11/2017 08:13)
Edit Reason: memory working slow
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GTV Cup (ex-20VT)
997 C4S

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#1611340 - 10/11/2017 10:35 Re: Water Charge cooling on a coupe thoughts [Re: leighgreen]
DaveG Online   content
Club member 311
Forum is my life

Registered: 16/12/2005
Posts: 6750
Loc: Lightwater, Surrey, UK
GrahamL and I had the Pace Chargecooler kit years ago, there were several others who had it too who are still around today. You might need to look back through the "old" forum to find more info, make sure the left column is enabled in My Stuff...Edit Preferences and click on "Old Forum BACK" then follow the links to the saved versions and try the Search function. It should keep you happy for hours...
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2000 Pearl White Plus & 1996 Portofino 20vt
1985 & 2016 2017 Fiat 124 Spider + XF Sportbrake

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#1611371 - 10/11/2017 16:43 Re: Water Charge cooling on a coupe thoughts [Re: leighgreen]
GrahamL Offline
I need some sleep

Registered: 17/12/2005
Posts: 3442
Loc: Pothole City
Unless you're aiming for no more than 280bhp or so and can get a used Pace chargecooler kit relatively cheap (they do appear on here occasionally), I wouldn't bother. For 300bhp+ a big front mount intercooler is better and cheaper.

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#1611372 - 10/11/2017 16:54 Re: Water Charge cooling on a coupe thoughts [Re: GrahamL]
Mark_S Offline
Forum is my job

Registered: 19/12/2005
Posts: 4742
Loc: Haslemere, Surrey
Hang on, I think the OP is talking about water charge cooling and hence we are talking Aquamist, are we not?
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997 C4S

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#1611374 - 10/11/2017 17:51 Re: Water Charge cooling on a coupe thoughts [Re: leighgreen]
leighgreen Offline
Reaping the fruits

Registered: 18/05/2010
Posts: 64
Loc: uk
No not aqua mist
It’s a a small intercooler that’s water fed that has its own water supply from seperate radiator so I was planning on another radiator where the front mount would usually go and put the charge cooler unit where the side mount intercooler goes hope this makes sense

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#1611375 - 10/11/2017 17:53 Re: Water Charge cooling on a coupe thoughts [Re: leighgreen]
leighgreen Offline
Reaping the fruits

Registered: 18/05/2010
Posts: 64
Loc: uk
Ment to be able to generate some cool temperatures it’s pumped by a electric pump

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#1611377 - 10/11/2017 18:10 Re: Water Charge cooling on a coupe thoughts [Re: leighgreen]
DaveG Online   content
Club member 311
Forum is my life

Registered: 16/12/2005
Posts: 6750
Loc: Lightwater, Surrey, UK
The problem is that the radiator that cools the circulating water is usually small so that not much cooling is done. Also the higher heat capacity of water compared to air means that once it gets hot, the water is slower to cool down compared to air, which is when you really need the maximum cooling. As GrahamL says, a large front mount intercooler (air/air, same as existing side mount, just a lot bigger) is better.
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#1611378 - 10/11/2017 18:55 Re: Water Charge cooling on a coupe thoughts [Re: DaveG]
leighgreen Offline
Reaping the fruits

Registered: 18/05/2010
Posts: 64
Loc: uk
The one I am looking at the radiator is s 795 x310 x60 mm core
The exchange is 310x410 with 1200lhr pump and was going to bolt 2 12 inch fans on the back of radiator which are on constant switched obviously so can turn them off

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#1611396 - 10/11/2017 23:27 Re: Water Charge cooling on a coupe thoughts [Re: leighgreen]
GrahamL Offline
I need some sleep

Registered: 17/12/2005
Posts: 3442
Loc: Pothole City
The pic links are broken in the Pace chargecooler install "how to" so here are some to give you an idea:

click to enlarge

click to enlarge

click to enlarge

click to enlarge


The pump is gravity fed so needs to be at the lowest point in the water circuit, so you'll struggle to find a spot if you put the chargecooler itself where the standard intercooler is.

Also, on the coupe the chargecooler is normally run in series with a sidemount intercooler (either the standard one or the uprated Pace side mount or clone) as there isn't space for a big one, so the pump would normally go at front right as shown in the above pics.

"Fastedd" on the old forum was the only one I remember fitting a chargecooler without an intercooler but he went for a custom double width unit and moved the battery to the boot to make space for it. That system worked for him pretty well. I thought I had some pics of that but can't find them now.

I also had a slightly different chargecooler system on my current coupe (Pace chargecooler, bigger Bosch pump + bigger Range Rover oil cooler as chargecooler radiator, mounted where FMIC would normally go), but it was too restrictive at high revs so I replaced it with a FMIC.

Bosch pump was too big for the normal spot so ended up here, at side of uprated side mount intercooler:

click to enlarge


And the Range Rover oil cooler as c/c radiator:

click to enlarge


There were 2 different Pace chargecoolers, but the first one was slightly too tall and ended up rubbing on the top of thermostat so they changed to a smaller version :

click to enlarge


Problem was, the bigger one was more free flowing:

click to enlarge


and the smaller one was too restricted with anything other than the standard turbo, even a hybrid is restricted at high revs :

click to enlarge


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#1611409 - 11/11/2017 08:39 Re: Water Charge cooling on a coupe thoughts [Re: leighgreen]
leighgreen Offline
Reaping the fruits

Registered: 18/05/2010
Posts: 64
Loc: uk
Thanks very much really some good points here if I can get the charge cooler down where the intercooler used to go I can get a much larger one in plus there should be less heat transfer from the engine bay into it so will get less heat soak problem is getting the pump low enough as long as the pump is lower than the out let of the cooling radiator all should be good shouldn’t it ?

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#1611426 - 11/11/2017 19:16 Re: Water Charge cooling on a coupe thoughts [Re: leighgreen]
Nigel Offline
Club member 123
Forum veteran

Registered: 16/12/2005
Posts: 16843
Loc: Staffordshire
I ran a Pace chargecooler along with an uprated Pace sidemount intercooler

It was better than the OE intercooler, but not by a massive amount - I ran two separate 'radiators' for the chargecooler, but it wasn't enough - there simply wasn't enough coolant in the system or enough heat exchange to keep the coolant cool.

It was OK for modest boost increases, but it just couldn't cope after about 1.4 bar and suffered badly with heatsoak in summer.

I ended up fitting a ProAlloy front-mount intercooler and I've never looked back - it was fitted about ten years ago and has been faultless for over 150,000 miles
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#1611437 - 11/11/2017 20:30 Re: Water Charge cooling on a coupe thoughts [Re: leighgreen]
kj16v Offline
My life on the forum

Registered: 12/02/2008
Posts: 1702
Loc: London
An adequately sized chargecooler can't cool any more than an adequately sized intercooler. The only real reason to choose a charge cooler over an intercooler is for packaging reasons, ie. there isn't enough space at the front of the car for an adequately sized intercooler. Other than that, it just adds cost, potential reliability issues and significant complexity (radiator, cooler, coolant tank, pump, wiring, air pipework, coolant pipework).

The Coupe has a tonne of space behind the front bumper for adequately sized intercoolers! The pics below are of my old 400-odd bhp Coupe with an aftermarket Evo intercooler fitted
click to enlarge

click to enlarge

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#1611498 - 13/11/2017 17:51 Re: Water Charge cooling on a coupe thoughts [Re: kj16v]
Taz Offline
My job on the forum

Registered: 17/12/2005
Posts: 1438
Loc: Kent Coast, smugglers paradise
Pace looked nice under the hood for circa 290hp...

After that...

FMIC.
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#1611821 - 19/11/2017 08:10 Re: Water Charge cooling on a coupe thoughts [Re: leighgreen]
Frogthedog Offline
Making a profit

Registered: 14/09/2007
Posts: 323
Loc: Guildford
I had the L&M charge cooler fitted to my coupé years ago. Found to be restrictive if you plan for 300bhp +.
Ended up removing and getting aquamist water injection.
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#1611830 - 19/11/2017 11:57 Re: Water Charge cooling on a coupe thoughts [Re: DaveG]
skeandubh Offline
Club member 1598
Making a profit

Registered: 16/07/2008
Posts: 354
Loc: The Shire
Originally Posted By DaveG
GrahamL and I had the Pace Chargecooler kit years ago, there were several others who had it too who are still around today. You might need to look back through the "old" forum to find more info, make sure the left column is enabled in My Stuff...Edit Preferences and click on "Old Forum BACK" then follow the links to the saved versions and try the Search function. It should keep you happy for hours...


The old forum links don’t seem to work anymore.
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#1611831 - 19/11/2017 12:09 Re: Water Charge cooling on a coupe thoughts [Re: leighgreen]
DaveG Online   content
Club member 311
Forum is my life

Registered: 16/12/2005
Posts: 6750
Loc: Lightwater, Surrey, UK
It was OK a week ago, better get on to Kayjey...
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2000 Pearl White Plus & 1996 Portofino 20vt
1985 & 2016 2017 Fiat 124 Spider + XF Sportbrake

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