It may not be that much of a pain to install the 901 gearbox, but it's very far from a bolt-in deal! There's still quite a bit of fabrication that you have to do from what I have read.
A Raby gearbox should be a true bolt-up-and-go install. A couple of orders of magnitude less time.
So, on the one hand you have five gears that are set up and spaced for a six-cylinder engine with a given power and torque curve. You also have quite a bit of cutting and welding and making of parts to get it installed.
On the other hand, you only have four gears. But they have been chosen specifically for the engine that you will have (assuming you're using a Raby engine, at least!) that play well with its power and torque curves. And you have a no-brainer bolt-in install.
Doesn't sound like a tough choice to me....
--DD
|