Water pump pulley

[adem.csl]

I don't know if this is of any interest but euros do a smaller water pump pulley his could pump water round the system faster!!! Every little helps

[Steve B]

Bigger the pulley the slower it turns so wouldn't this do the opposite??, or is my science GCSE not as good as I thought lol

[shane@mbtech]

It might make it seem quicker too :blalalala:

[shimmy]

It might make it seem quicker too :blalalala:

cnut

[adem.csl]

Sorry wrote larger meant smaller my bad!!
Won't make the car faster though lol

[alexk]

Can we find out the difference in the diameter ?

[adem.csl]

Can we find out the difference in the diameter ?

12cm and 13.3cm

[alexk]

12cm and 13.3cm

So 37.69cm circumference vs 41.78cm.

Therefore -> 10% higher rpm on the water pump which means 10% increased water flow.

It sounds good.
I am not very happy with the way they look though.
Is this how they really are (photos) ?

[shimmy]

Will the water pump be capable of surviving 10% highe from than it's supposed to run?

[uncle benz]

Show me some science that says rushing water through a radiator faster is better.

[shimmy]

Show me some science that says rushing water through a radiator faster is better.

i also was wondering

i suppose a bigger rad may mean the water has same time to cool then faster flow may nean extra cooling.

if the water is gettting less time to cool then benefit is questionable

[shane@mbtech]

i also was wondering

i suppose a bigger rad may mean the water has same time to cool then faster flow may nean extra cooling.

if the water is gettting less time to cool then benefit is questionable

Bigger cooler is more surface area.

Think of electric shower, put on full speed, warm water. Put on low speed, hot.

Think of rad as a reverse of this.

[uncle benz]

Bigger cooler is more surface area.

Think of electric shower, put on full speed, warm water. Put on low speed, hot.

Think of rad as a reverse of this.

Now I'm even more confused. The reverse of that you say...

So is that slow speed = warm, fast speed =hot

Or full speed = cool, low speed = cold.

To my mind there must be an optimum speed of coolant flow for a given size of radiator. Surely too slow will mean the coolant is cooled A LOT in the radiator, at the detriment of the coolant left in the engine which will peak much higher.
Too fast and it won't be cooled sufficiently by the radiator before being pushed back into the engine?
Where is the Gorilla when you need him???

[adem.csl]

So 37.69cm circumference vs 41.78cm.

Therefore -> 10% higher rpm on the water pump which means 10% increased water flow.

It sounds good.
I am not very happy with the way they look though.
Is this how they really are (photos) ?

What???? If one has a 12cm outer diameter and one has a 13.3cm diameter where did you get 37.69 and 41.78?
The pic is at the first post

I didn't say it would definitely work i was questioning would it make an improvement????

[shimmy]

What???? If one has a 12cm outer diameter and one has a 13.3cm diameter where did you get 37.69 and 41.78?
The pic is at the first post

I didn't say it would definitely work i was questioning would it make an improvement????

Alex was talking about circumference Adem, the distance around the edge. You'd quote diameter which is straight across the pulley.

Iirc circumference = 2x pie x diameter/2 = 2 x 3.142 x 12/2= 37.69 (I'm exhausted now)