14-09-2022, 09:44 PM
Hi Ian thanks for the reply,
I briefly tested the pump in a water butt with a makita drill, at the drill's max speed of 1500rpm there was a fair torrent of flow, but had no way of measuring flow accurately. Yes it's definately going the right direction.
To begin with i had the pump 0.7 underdriven, then after the first few runs (when it was overheating on hills) i then swopped the pulley to 1:1
I'd read articles about cavitating and so was starting off slow. It stays cool for longer on the 1:1 but still runs into the 90-100 degrees on hills.
The snail housing was integral to the gsxr pump, i've made an extra bearing housing on the shaft to support the pulley drive setup. Tried to look up GSXR specs but couldn't find info on the pump's original drive speed (mind you they rev to 12k whereas i'm not going much over 6000)
As my Dad often says "why d'you have to go fiddling around trying to make them go faster!"
![[Image: output-2b992b4f-d274-4e6a-8012-b7c60d294...0x869.jpeg]](https://1930austin.yolasite.com/resources/output-2b992b4f-d274-4e6a-8012-b7c60d294fac_EiZ6Bif2.jpeg.opt1160x869o0%2C0s1160x869.jpeg)
I briefly tested the pump in a water butt with a makita drill, at the drill's max speed of 1500rpm there was a fair torrent of flow, but had no way of measuring flow accurately. Yes it's definately going the right direction.
To begin with i had the pump 0.7 underdriven, then after the first few runs (when it was overheating on hills) i then swopped the pulley to 1:1
I'd read articles about cavitating and so was starting off slow. It stays cool for longer on the 1:1 but still runs into the 90-100 degrees on hills.
The snail housing was integral to the gsxr pump, i've made an extra bearing housing on the shaft to support the pulley drive setup. Tried to look up GSXR specs but couldn't find info on the pump's original drive speed (mind you they rev to 12k whereas i'm not going much over 6000)
As my Dad often says "why d'you have to go fiddling around trying to make them go faster!"