Water Pump Flow rate?
Turbo Mini Forums

is anyone using this one?
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?Vie...s_promot_widget
Will give it a try on my swift engine together with a 3-core rad, std thermostat.

//marcus

internationally known as "big" swede

that one only flos 13L per min, it wont be enough to keep you cool

I can piss faster than that pump

Edited by Vegard on 28th Dec, 2007.

Metaphoricaly speaking

so what are you saying Vegard? You have a huge Japs eye?

Edited by Sprocket on 27th Dec, 2007.

or maybe not then

thanks
//marcus

internationally known as "big" swede

Look at it this way if the mechanical pump was to sap only 1/2 hp, the electrical pump would have to do the same work, thats a current draw of 31 amps, or a wattage of 372w.

Having said that, people have got away with a lot less and not had any major problems.

GRR, Hypathtical. Thats why I said' say 1/2hp' I was also being conservative and then said that people have got away with less. So what are you picking at? lol

Edited by Sprocket on 27th Dec, 2007.

Just saying that directly comparing the power required to drive the pumps may not be the best means of comparison.

Jeees, now you've made me use big words :)

lol

Right, this evening i knocked up this:







Although i then realised that the water is flowing the other way to which i was thinking just to make life difficult.

So, i then need to get another tank going to the inlet, fill this one above the impeller, mark the level, and work out the difference.

My main problem is gravity and it improving the flow of the pump as it seems to push quite a bit of water through, and i need to make the face the same thickness as the block

That should work a treat mate!

Can't you strengthen the sealing face by making up a couple metal plates to sandwich the plastic side?

Bit of a PITA to make but can't see another way round it?

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

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It' all well and good doing that BUT the impellor is not open to a tank of water when it is fitted so I would question wether the test is valid.
Dave

But wouldn't the tank of water kind of replicate a bit of pressure or at least give some resistance?

If you did the test 3 times and took the average flow, then drill a hole in the bottom of the box and drain it into another container you could test the difference of flow between the pump with and without resistance.

Edited by matty on 28th Dec, 2007.

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

I recon around 80 litres a minuit on an un restricted pump at around 2500rpm

Yet another pump i've found. Still not got the balls to buy one yet.

But this one has a nice graph of flow rate for you all to look at..

http://cgi.ebay.com/ebaymotors/ws/eBayISAP...bayphotohosting

Si

I drill holes in everything..!

Ive been trying to find out prices on the bosch pumps, but the site is absolute wank, and it is near impossible to contact anyone. Ive found another site so maye I'll have some luck there!

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

matty, ring this number:

helptoday: bosch dealers, ask for barry: 01522 501001

he's got me std bosch fuel pumps cheap.

if he cant post, let me know, i'll pick it up and post it on.

Sprock has it on the nose - 80l/min minimum is the flow needed. The ickle Bosch ones at 30l/min are ok for reciruc on shutdown - strangely enough thats what they are designed for or for a chargecooler circuit

If Carling made Mini engines
it would probably be like this one!

OT but thanks for that link Sproc. I like this quote form the site:

Quote - "regarding the Focus RS:
twin turbo 5? what big one, little one or has someone worked out some funny exhaust to split one cylinder in two(maybe have 1 port feed the left turbo,t'other the right turbo)?"

Answer- One turbo gets three cylinders, the other turbo gets the remaining two cylinders. The deficit is made up by pumping hot air into turbo-2 from the cabin where the owner is rambling on about how great the car is to anyone who will listen and a lot of people who won't.

Edited by Jay#2 on 19th Jan, 2008.