Fitting a turbo on an 83 650 xj

I ran across a turbo manifold for a good price and now im wondering what else i need to consider while buying a turbo and other part while im fitting this to the non turbo bike.

 

The turbo manifold is just one of the many pieces to the puzzle. The turbo engine has low compression pistons, different cams, stronger rods, and a reinforced bottom end. Not to mention a higher volume oil pump, turbo oil pressure & drain fittings, smaller intake & exhaust ports, and a stronger clutch. The ignition computers are much different and the factory non turbo system does not take boost too well. The factory non-turbo carbs are completely different and can not have forced air blown through them. They are designed for vacuum, not boost so the seals will blow. You will have to either purchase the entire fuel delivery system from a turbo bike or build your own as the non-turbo model is gravity fed to keep up with the increased demand and the turbo has a fuel pump, pressure regulator, and petcock with return line built in.


Basically what I am trying to say is either purchase a complete turbo seca for parts or plan on doing a bunch of searching, substituting, fabricating, and cussing. I have a turbo maxim I am building and if I were to do it all over I'd just build the crap out of the stock engine. Turbo bikes are fun but they are a major pain in the butt.

 

Turbo builds are fun. insanity basically has it right. Turbocharging a carbeurated system is particularly rough, as you never know how your carb is going to react, and seals like to explode on almost any non-reinforced carb.

Gravity feed systems won't keep up. You NEED a fuel pump, unless you like melting stuff. Hell, I'm pretty sure the engine would stop firing if you approached anything above 10lbs, it'd just be too lean to even get solid combustion.

Still though... winding the hell out of a motor running 7.5:1 and about 25 pounds of boost... My kind of day.