flatty high comp head build

[dan]

hey all ive stared making a high comp head for my little briggs, will post pics of the item when complete should be latter on tonight.

 

[sideways]

hey all ive stared making a high comp head for my little briggs, will post pics of the item when complete should be latter on tonight.

High compression can actually decrease power on a side valve engine.

Are you making it from scratch or skimming an original one?

Thanks

Hayden

 

[dan]

made it from scratch, i dont care if it decrease power, tho i dont think it will but yer it dont bother me.

 

[Russ2251]

i dont care if it decrease power

Then....what's the point?

 

[dan]

im sure it will make more power, its also got a lightened flywheel, custom in take manifold, custom exhaust pipe, after market carby, advanced ignition timing, was hoping to run dual plugs and a after market ignition.

 

[Russ2251]

its also got a lightened flywheel

A word of caution here. A lightened flywheel carries with it a certain amount of danger. Whereas a lighter flywheel is completely safe.
Make sense?

 

[dan]

yep its not lightened in state, its just had the fins removed and face cleaned up i haven't taken any structural mas out of it

 

[Russ2251]

In all my 4 cycle engine builds, I opt for the lighter flywheels from the vertical shaft counter parts.

 

[Bluethunder3320]

taking fins off could make your motor overheat.

 

[Russ2251]

taking fins off could make your motor overheat.

Unlikely...very common practice as long as original cooling tins are kept in place. Consumer engines are purposely "over-built".

 

[dan]

In all my 4 cycle engine builds, I opt for the lighter flywheels from the vertical shaft counter parts.

my engine was originally a vertical shaft engine, i calculated it to be 212cc and in between the 5 and 6.5hp engines was slightly different to both