Turbo motor bottom end pro's and cons

[Swirl]

Right so I have a 1127 powerscreen bottom end which we know is helical and various reports no good after 200hp, I've now picked up a U704 1052 slabby bottom end which I believe has a better clutch basket and straight cut gears, now we come to 1127 gsxr which we know has straight cut gears like the b12, although the mk2 b12 has a stronger output bearing, anyone care to add any experiences

[Duckndive]

1 hour ago, Swirl said:

 I've now picked up a U704 1052 slabby bottom end which I believe has a better clutch basket and straight cut gears,

The only difference is the gear as the basket and plates are the same as the Powerscream Clutch

[Leblowski]

Downside of helicol gears it will wear out the crankshims that’s just about it

I rode a gsxf 1216 engine for three years with 240 bhp at the wheel.

So whoever says a gsxf engine isnt up to that kind of hp is wrong.

The only reason i have an R engine now is because of the dragging clutch problem and the powerloss from helicol gears otherwise i would use an f engine al day long