Bosch Electric Water Pump
Turbo Mini Forums

Am in the market for an electric water pump, have spoken to a number of suppliers how only seem to stock Davies Craig pumps, which i understand to lack reliability.

Then there are the likes of Corley Conversions, and KAD that stock what many people say to be vending machine pumps at high prices.

Theres a number of Bosch units on ebay, quoting 1200 Ltrs/hour. This seems very high for what looks an identical pump to the KAD unit, the seller has verified this figure, but i'm unsure on the pressure side of things.

Would something like this: http://www.chargecooler.co.uk/index.php?ma...products_id=184 be suitable as a standalone waterpump?

What are you doing with it?

I'm running a turbo'd 8v twink with a fiat cinqucento front rad. I require something to replace the standard belt driven pump.

I've used davis craig pumps before and had no problems. A lot of "unreliability" can come from a few failures and internet forum chatter. I doubt that anyone has tested a large enough sample to arrive at a reasonable MTBF. My suggestions would be, in order of preference:

1. Find a way of making a mechanical one fit.

2. Buy a good quality name brand electric one and take a punt, as it is unlikely anyone will have anything meaningful or scientific to tell you about actual failure rates.

Jamie there is plenty of info on this site about flow and suspect failures.

This is a good thread: http://www.turbominis.co.uk/forums/index.php?p=vt&tid=210357

search electric water pump will bring up several informative threads

Edited by wolfie on 23rd May, 2011.

Have searched through the threads, just wondered if anyone had any specific thoughts on the pump in question above.

The flow rate figure of 1200 Ltr/hour is certainly more than up to the job. It's the 5psi head pressure that i'm usure of as i cannot find any reference to this on the forum.

Also, have been looking at turbo daves, just seeing if there is a cheaper alternative as i would have to make up new hose adaptors as i'm running 1 1/4" hoses.

i have a johnsson cm30 pump, will try that togheter with a china rad on my swift motor, there is a flow chart in the link, looks similar to the bosch one
http://www.johnson-pump.com/jpmarine/produ...ation/cmco.html

internationally known as "big" swede

Thank for the comments.

Will go for a tried and tested Turbo Dave pump.

Im using a Meziere pump, it pumps 80lts/min and is just fine. Well has been for the last 4-5k (since fitted).

Car sits at a steady 80degrees , even cruising at 5k on the motorway.

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

That it would! Good old Lada. haha

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