rockthemullet

Thought I'd throw some pics up of another mini project I finished last fall. I used a Canton reservoir for an 03/04 Cobra, since I have bins and bins of Cobra parts hanging around. I relocated the inlet/outlet, cut the original bracket off and made my own. The reservoir fits above the belt but below the hood just fine, and I can move it out of the way by removing just one bolt. The intake tube is a tight fit but I still got everything in there.

99lightning

works perfect that was my first mod to my car

uraberg

Are you using it as a fill point only, or circulating through?

BTW, what color did you use for the surgetanks? is VHT brand blue?

rockthemullet

It's circulating through, hence relocating the inlet/outlet. I have it coming out of the supercharger, into the res, then down into the pump.

Color on the valve covers and surge tanks is a high temp powdercoat. Works great on the valve covers but it's a little too brittle on the rough surface of the surge tanks.. can't think of the name though.

chawkins2001

very nice man

RedBullJnky

Nice job!

Sir-Boost-a-Lot

iTrader: (1)

Very nice work! Now just find room for about twelve more of them and daisy chain them together for some fluid capacity

Roverron

The key to cooling these S/C is pressurizing the cooling system. The key is to keep it equal to your pumps flow rate. There are many ways to do this.

rockthemullet

What? No.

The primary benefit to pressurizing a coolant system is to allow for a higher fluid temperature without boiling. The secondary benefit would be to prevent evaporation of the fluid, requiring that fluid to be replenished over time. Since the supercharger coolant never sees temperatures high enough to boil, the system never needs to be pressurized. A sealed system would be advantageous for level maintenance but even in a sealed system it would not inherently pressurize.

berti_00

When I went on a dyno the water was shooting from the reservoir pressure release hole.. Any idea?? I am going to put the engine bay tank, the little one isn't as great

cij911

Roverron

Ok
Let me rephrase controlling the pressure.
I know what I measured and what is working in my car and you have yours.
Its not about debating I have my results and you have yours.
It's all good.

Crissus

So show your system please and what you have measured :-)

Roverron

it is Pierburg CWA 50 pump with BMW reservoir and a 10 lbs pressure relief screw in valve on top. level on water is down about 1.5 inches. its also run in a circuit not as a fill point. pump is ran with 12 volts ignition. i found with this setup my heat exchanger gets even temps with no cavities of air. pressure relief is so back pressure does not restrict pump from flowing. if you look at the CM30's i think they stop flowing at a low pressure rate. the system is already tough to flow through with all the restrictions. i just took a temp gauge and measured water temps before pump install and after, then with pump running all the time and then with the relief valve in. the valve helps after a hard run where water gets hot and causes more pressure in system. to much pressure and a weak pump like the CM30 will stall and not flow at a good rate.

the cm30 will free flow close to the bosch pumps but its not the same when there are restrictions. The Pierburg CWA 50 will smoke both of them with restriction.

vioilio

Same thing happened to me. Anyone know why???

Sir-Boost-a-Lot

iTrader: (1)

Probably because the fluid is transferring a ton of heat at WOT and expanding in volume.

Roverron

Thats why I keep my level down 1.5 inches
I have my breather hole plugged
With the pressure valve it allow some of that pressure to escape keeping PSI in range for pump to operate at specified flow rate

JoeNobody

Yes this is the only way to keep the BMW reservoir from spraying coolant.

A 10psi breather valve cost only a buck too (search on eBay for grease pressure valve).

vioilio

Can you post a link of the exact valve that I need and how to hook up? Yes I'm using the BMW reservoir. Thanks!

berti_00

If I add the engine bay tank do I close that breather?? Or run it up at the tank?

95ONE

The Pierburg alone is the reason your temps are down. Also the reason you have pressure. So.. in your system Because you have the Pierburg / reservoir, you have to use a pressure valve.



This is NOT a good general statement for everyone with entirely different pumps - set ups. It would be wrong for the majority of us. Correct for you.

That said. It is excellent information and nice to see you have that specific system worked out very well. Pictures would be great, and I'm curious where you vent that 10psi breather valve in to?

Roverron

@95ONE please carefully read my post I did test my system with the CM30 and the Bosch. This is not a debate.
I just tried to open about what I found.
I now see why people choose not to post their findings.
It becomes a debate and people want you to prove what you found.
Im not selling anything just giving out info.

top pressure vent

rockthemullet

This information is relevant to your configuration. It is not relevant to mine. There's nothing wrong with sharing your findings, but you cannot state that your method is the only correct path.

If you don't like kick back, questions, and challenges... then by all means, don't post.

Roverron

im trying to post pictures now
Im also not saying this is the only way or the best way or even a good way it just worked for me
sorry for large picture
also your system is doing the same thing mine is you have a pressure cap on top to release pressure as well.
if you have it circulating why would you need to bleed the system? it should self bleed and air remain in reservoir

in my statement I said that "The key to cooling these S/C is pressurizing the cooling system. The key is to keep it equal to your pumps flow rate. There are many ways to do this."

post #8 there are many ways to do this

rockthemullet

I only bled the system to speed up the air evac process. This way I can be done with it in 5 minutes and I don't have to go back and check the level in a few days when the air has moved through the system


Good pic