Maxxecu VMX ”Mohko”

[Rauno Vekkila]

Take a look at this thread, some info on what my friend has done to make a large-displacement 1508cc bike.

View attachment 96526

Did someone say, "bigger valves?" And changing the retainers to 'shim-under bucket' to prevent the shims from being spit-out under high rpm's or aggressive ramp-up on the altered cams.

View attachment 96527

View attachment 96529

OEM on left, 'big-boys' on right

View attachment 96530

https://www.vmaxforum.net/threads/maximum-bore-stroke-for-a-1200.26825/page-3#post-521829

Lots of interesting reading on this thread.

Hi nice looking chambers indeed. I i i intend to stay with standard cams. If this project goes as planned (1500 cc + EFI) I had couple of small Renault turbos in warehouse to move some mixture.

a look at this thread, some info on what my friend has done to make a large-displacement 1508cc bike.

View attachment 96526

Did someone say, "bigger valves?" And changing the retainers to 'shim-under bucket' to prevent the shims from being spit-out under high rpm's or aggressive ramp-up on the altered cams.

View attachment 96527

View attachment 96529

OEM on left, 'big-boys' on right

View attachment 96530

https://www.vmaxforum.net/threads/maximum-bore-stroke-for-a-1200.26825/page-3#post-521829

Lots of interesting reading on this thread.

Take a look at this thread, some info on what my friend has done to make a large-displacement 1508cc bike.

View attachment 96526

Did someone say, "bigger valves?" And changing the retainers to 'shim-under bucket' to prevent the shims from being spit-out under high rpm's or aggressive ramp-up on the altered cams.

View attachment 96527

View attachment 96529

OEM on left, 'big-boys' on right

View attachment 96530

https://www.vmaxforum.net/threads/maximum-bore-stroke-for-a-1200.26825/page-3#post-521829

Lots of interesting reading on this thread.

Hi,

Nice looking chambers indeed. I intend to move ahead with standard cams. i have plenty to do with 1500 cc + EFI

 

[Rauno Vekkila]

So close, yet so far

 

[Rauno Vekkila]

Bigger valves? That sounds interesting! Woudn't that also need the seats and valve guids to be replaced? Very cool mod, I`ll be following your progess closesly.

The first pair of Toyota valves were a bit too short. Damn. I ordered a set of longer ones. The downside of them is that I have to machine the head of the valve smaller since only 1mm larger can be fittet to the original seats.