Water Pump Flow rate?
Turbo Mini Forums

Edited by matty on 19th Jan, 2008.

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1/4mile in 13.2sec @ 111 terminal on 15psi

With regards to flow rate. If 80ltr/min is the required amount, How come KAD get away with 18.5ltr/min with their screaming engines.?

Or am i missing the point?

Si

I drill holes in everything..!

probibly run no thermostat

So, from this, If i was just to use a blanking sleave and open heater control valve. (the thing at the other of the head).

This level of flow would be acceptable. 18.5- 30ltr/min

Si

P.S Don't you guys ever sleep? I have a reason to be up, i work nights.

I drill holes in everything..!

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Edited by robert on 2nd Feb, 2008.

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

Been doing some searching..and this pump seems to come out on top. It may be a bit overkill with flowing 159ltr/min but it can always be slowed down.

They also seem to do adaptors to suit different size hoses which makes installation easier.
http://www.meziere.com/ps-784-752-wp116b.aspx

EDIT: not sure if above link is working? but the pump is similar if not the same as this.

http://store.summitracing.com/partdetail.a...15&autoview=sku

Edited by matty on 13th Feb, 2008.

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1/4mile in 13.2sec @ 111 terminal on 15psi

what are you going to use the dual outlet for? turbo? they do a single outlet one too, as you know.

Ah yeah didn't notice it was dual outlet!

Will probably just go for the 80ltr/min pump in that case and save some pennies.

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1/4mile in 13.2sec @ 111 terminal on 15psi

heres a link to a mez pump , this says 35 gallons per min (132.3 l/m),,for a supra , so i think its safe to say less than that would do!

http://www.meziere.com/ps-1229-1197-wp520.aspx

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

That is also un-restricted flow - as with all mez figures.

The 136 specs are quite interesting to look at - especially the current draw - "Under normal use the pump will draw 6-7 amps"

That said, the energy to do this work HAS to come from somewhere - and I guess if i was to plot the current draw of the 136 vs the flow, it'd all be much of a muchness compared to the other flow / current data I've collected.

Edited by turbodave16v on 20th Mar, 2008.

This is a complex subject.

I've drawn a system curve to explain:



It's no good just going on a flow rate. You need to be sure that you get enough flow with the thermostat open to cool the engine and also enough pressure to ensure that the water in the cylinder head does not boil.

When we have a bit more data, we can fill in the axis.

Edited by Paul S on 20th Mar, 2008.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

I could be talking bollox but....If you were to use an external bypass thermostat the restriction in the cooling system should be less than that of a standard thermostat due to the orifice of the hoses and passage way remaing a constant size instead of being reduced down to a single hole like a 'regular' thermostat.

I know my thermostat works by being feed in the centre and has a shuttle type valve that simply switches from left to right directing the water directly back to pump via the bypass hose then then the other way redirects flow to the rad.

The water will then always have a constant flow of water whether it is hot or cold but it only goes through the rad when its up to temp...

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1/4mile in 13.2sec @ 111 terminal on 15psi

This is my setup...should work well for a 5 port head aswell as K head with limited restriction.

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1/4mile in 13.2sec @ 111 terminal on 15psi

Matty,

The only potential down side to your setup is that you do not create the extra pressure in the cylinder head to prevent boiling.

It may not be a problem with your setup if you have an efficient radiator.

And this is the next problem - different radiator setups need different flow rates.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Wouldn't the increased flow of water help to illiminate boiling as the water is passing through at a faster rate?

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1/4mile in 13.2sec @ 111 terminal on 15psi

Edited by Paul S on 20th Mar, 2008.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."