Add 7040 turbo?

[Rmart30]

Looks as though the early 67hp 7040 model has same motor etc as the later 71hp version and just a turbo was added.
The turbos can be bought aftermarket for around $250. Wonder what else needs added or changed? Ive got parts manuals on the way to compare.

 

[number two]

I would imagine some fuel system changes would need to be made?
Different pistons?
Good Luck!

 

[KenBike]

May need a different head gasket, adding boost is a easy way to blow!

 

[5030]

Lots of plumbing required, especially if you want charge air cooled. A turbocharger also requires it's own oil line for lubrication as well as a return to sump and there is there is the issue of elevated combustion temps due to the 'boosted' charge air. I think I'd just purchase a larger unit with the hairdryer already installed and call it good.

Some poster on here refitted his unit with a hairdryer and the plumbing was quite involved and made me scratch my head over it.

The other thing about a hairdryer is, it has to be correctly sized to the engine. Too large is no good and too small isn't either.

One nice thing about having a turbocharged engine is, you don't need a muffler anymore. The turbocharger acts as a muffler as it breaks up and dissipates the exhaust sound waves.

I removed the stock mufflers on both my turbocharged M9's a long time ago. I run a straight pipe from the turbo's to the atmosphere and they have a very pleasing sound, not overly loud, just nice.