Pocketbike Forum banner

BZM new water pump

2K views 8 replies 7 participants last post by  bike mad yank 
#1 ·
who all has seen the beautiful new bzm water pump? not great for us C1/C2 guy's but I still had to post this pic....
 

Attachments

See less See more
1
#3 ·
I saw that about a month ago and it mad me mad. I had already bought the $80 racing pump a while back.
 
#6 ·
I have never physically seen one but by the looks of pictures they are the size of a standard polini or bzm waterpump. The water is already cool going into the waterpump so it will not make much of a difference even if it did have a positive effect.

My suggestion is not to waste you money as on these small bikes, better water flow is more important.
 
#9 ·
Water pumps are funny things, especially when you're talking about crank speeds in excess of 12k. When driven too fast, the impellor will cause cavitation, a phenomenon where a bubble of air forms around the impellor, when no water is pumped at all. The key is to have good efficiency at all speeds without the risk of cavitation. The phenomenon is less likely to occur at higher pressures so it is not uncommon to see pressurised systems working at twice or three times the pressures of normal cooling systems.
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top