CMB VAC 45 numbers.

[Terry Keeley]

Had a good look at my new VAC 45, numbers here:

https://www.intlwaters.com/gallery/albums/userpics/10068/2012_CMB_VAC_45.xls

With the square design, big timing numbers & small head volume it looks like it's gonna be a torque monster! :blink:

Might need some bigger props...

 

[Joe Warren]

Terry Stu does advise to open up the bowl volume. Picco 45 volumes ranged from 4.3 4.5 total with flat top. Dont know what they advise for nitro content But I woud be trying to set up for 65%

 

[Terry Keeley]

My CAM 45's are 0.36cc including the dish, worked well.

I'll try it stock first but I bet the plug goes "black hole" unless theres' a nice cackle at WOT! :wacko:

 

[Norm Doerr]

Had a good look at my new VAC 45, numbers here:

http://gallery.intlw..._CMB_VAC_45.xls

With the square design, big timing numbers & small head volume it looks like it's gonna be a torque monster! :blink:

Might need some bigger props...

Terry;

Can you explain the balance factor on the spreadsheet?

Are you slugging crank weights?

Thanks

Norm Doerr

 

[Terry Keeley]

Had a good look at my new VAC 45, numbers here:

http://gallery.intlw..._CMB_VAC_45.xls

With the square design, big timing numbers & small head volume it looks like it's gonna be a torque monster! :blink:

Might need some bigger props...

Terry;

Can you explain the balance factor on the spreadsheet?

Are you slugging crank weights?

Thanks

Norm Doerr

Yup, very simple, just gives some idea of what the counterbalance is:

The percentage is just the counterbalance divided by the piston/rod/pin weight.

Haven't slugged a crank in years, with rubber mounts they don't seem to shake like they use to. ^_^

 

[David Bryant]

Picco 45 volumes ranged from 4.3 4.5 total with flat top

is this stock volume (for new Picco P45R black body w/blue head)?
I have both engines- the new CMB 45 VAC and Picco P45R. Planning to use 50% in both.

 

[Joe Warren]

David this is a general bowl volume they have used in the black head 45 and the newier blue head

 

[David Bryant]

thanks Joe

 

[Joe Warren]

And that sould be .43 -.45

 

[Terry Keeley]

Saw Albert's run today in his CF Crapshooter, can't wait 'til the water's soft up north!

Saweeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeet!!! ^_^