RS2 Water Pump and Cambelt

[Josh-stateside]

Hmmm... I think I have a 7a belt on my aby motor.

I will have to look into these speculations. Runs fine nevertheless right now. However I do have a 7a crank pulley on there too. I bought another 7a bottom end that I will be picking up this week so I will check that out too.

Cheers
Josh

I have a 151 belt. Got worried there for a second.

147=3b/7a
151=aby

Etka doesn't list length for the RS2.

Cheers
Josh

[Josh-stateside]

Please keep us posted on the RS2 length.

For the 3b owners:

The 5 cylinder motors from the vw "eurovan" Come with a smaller water pump.

The rs2 setup would not work because the pulley is on the oil pump on the 3b/7a motors and it's a seperate piece mounted to the block.

I am not sure if the pulley is going to be the same as the rs2 unit but I suspect there is a very good chance that it will be.

I plan on turboing a 7a head and if I don't get the head machined for the extra water manifold holes this might work for now.

Cheers
Josh

[Jamo]

*Bump*

What was the outcome of this?

[mcandmar]

Looked into this myself, as above it spins faster and should in theory pump more water. The cam pully is also a different part number between ADU and ABY engine, i dont know if its the size or different timing. The parts cost more than the ABY bits so i didnt bother with them..

[Jamo]

Hmm well i could do with a heads up on this as if Audi went this route for 315 bhp i'd imagine it's necessarry for anything higher than 315 bhp?

[Billman]

I have heard that the RS2 water pump has a smaller pulley as the aby one! Does anyone know if it is necessary? Is there any other water pump with a smaller pulley than the rs2 one?