The Official 66e freestyle/freeride thread

[vomitspot]

i read over @ gh a bit and the big bore gpr guys are running the offset keyways
there making big hp!
i havent heard of any of them sheering yet

 

[RiverRat]

yes mine is up and running
weather is keeping me from getting the carbs dialed in but it rips!
blows my full ltd sxr away on acceleration!
its well worth it!
cant even think of what a 927 will be like
it was @ daytona last week for those who attended to see
vomit

Have any vid of the ski up and running?

 

[vomitspot]

hears a tip for ya if you cant find the msd stuff
with gas pv you can run a 760 cdi i did
riva no longer makes the 800 cdi but says they still have 760 cdi.

 

[vomitspot]

frosty has the only video of it with donald smith barrol rolling it in daytona
and its a long video with a brief shot

 

[Lakeman]

927 motor/ SEXY

I thought I would post some pic's of a new motor of mine. It has been in the works for over a year and it arrived in Nov 07. I will post a build on this ski in a few days to explain more. SO SO SEXY. I want to sleep in the garage about every night.

Dale

 

[Idok]

Im most likely not going to mess with the TL..........too much headache for an ocean boat..


nice motor lakeman!!!!!!!!

 

[sjetrider]

uhm, why is it that all your threads are THE OFFICIAL THREADS LOL!!!!!

 

[Freestylin-FX1]

uhm, why is it that all your threads are THE OFFICIAL THREADS LOL!!!!!

:twak: DUH cause of the secret decoder ring only found in the bottom F1PRO hulls:moon: :moon: :moon: :moon:


J/K:smlove2:

 

[Idok]

:twak: DUH cause of the secret decoder ring only found in the bottom F1PRO hulls:moon: :moon: :moon: :moon:


J/K:smlove2:

:scratchchin:

 

[JonnyB]

they are definatly 1200cyls (66v marked)..and have been resleeved....no nikasil

the 66V ports are different than the 66E ports. A common mod on the GPR1200 is to use the 800 jugs (it's like a mid port job).

Edit: the 41ccs on a 66E motor are 150psi

for later on here are the numbers and psi
41cc: 150psi
37cc: 170psi
35cc: 180psi
31cc: 200psi

 

[crammit442]

I wonder how much punishment an offset keyway can take in a watercraft because watercraft have no transmission to take up the shock when the driveline comes unhooked then hooked.

Since the key ONLY locates the FW and the taper is what keeps it from turning, it should have no effect in any way. Assuming the tapers mate well.

 

[Big Kahuna]

Since the key ONLY locates the FW and the taper is what keeps it from turning, it should have no effect in any way. Assuming the tapers mate well.

uh, so if the taper is what keeps it from turning. why is it that when the key shears that the ski runs like crap because the timing has changed due to the fly wheel being at a different degree point on the crank???

 

[Idok]

the 66V ports are different than the 66E ports. A common mod on the GPR1200 is to use the 800 jugs (it's like a mid port job).

Edit: the 41ccs on a 66E motor are 150psi

for later on here are the numbers and psi
41cc: 150psi
37cc: 170psi
35cc: 180psi
31cc: 200psi

Jeff told me that in THIS application the rider would not notice the difference in jugs...

the only difference is in the center transfer....the 1200 cyls tach out @ +50 rpm's as compared to the 800 jugs..

I have 41cc domes, I'd like a set of 37's if those #'s are accurate....170 psi is perfect IMO..not too much, not too little..

 

[Idok]

i will also DEFINATLY be using one of these keys....if the power increase is anything like it was on a 701 its totally worthwhile...

 

[crammit442]

uh, so if the taper is what keeps it from turning. why is it that when the key shears that the ski runs like crap because the timing has changed due to the fly wheel being at a different degree point on the crank???

uh, like I said. The key is ONLY there for FW location/timing. If something keeps the motor from turning during cranking(water) the key is the fusible link(for lack of a better description) and it's shearing allows the FW to slip on the taper. Drill presses, machine tools(morse/jacobs tapers), some engines, etc do not use a key. Do you really really think that little key is the only thing keeping the FW from slipping? Tapers provide a huge amount of contact area(friction/shear). Tapers can transmit huge amounts of torque. That's why many builders like to lap the taper surfaces. It ensures a more perfect taper contact area......uhhhhhhh.............

http://en.wikipedia.org/wiki/Machine_taper

 

[JonnyB]

Jeff told me that in THIS application the rider would not notice the difference in jugs...

the only difference is in the center transfer....the 1200 cyls tach out @ +50 rpm's as compared to the 800 jugs..

I have 41cc domes, I'd like a set of 37's if those #'s are accurate....170 psi is perfect IMO..not too much, not too little..

Those numbers are from a Riva price list year 2000. On my GP800 the numbers were right about dead on from that sheet.

 

[Big Kahuna]

uh, like I said. The key is ONLY there for FW location/timing. If something keeps the motor from turning during cranking(water) the key is the fusible link(for lack of a better description) and it's shearing allows the FW to slip on the taper. Drill presses, machine tools(morse/jacobs tapers), some engines, etc do not use a key. Do you really really think that little key is the only thing keeping the FW from slipping? Tapers provide a huge amount of contact area(friction/shear). Tapers can transmit huge amounts of torque. That's why many builders like to lap the taper surfaces. It ensures a more perfect taper contact area......uhhhhhhh.............

http://en.wikipedia.org/wiki/Machine_taper

No, I do not think that key is the only thing that is keeping the flywheel in place. Just looking at it from a different angle. Yes, I have heard of people even using loctite on the taper to help seal the flywheel on. But without the key on it, the fly wheel will be more prone to keep timing than without.

Think this is more of a "they go hand in hand"

I dont think a drill press spins 6500 rpm's do they??

 

[Big Kahuna]

uh, like I said. The key is ONLY there for FW location/timing. If something keeps the motor from turning during cranking(water) the key is the fusible link(for lack of a better description) and it's shearing allows the FW to slip on the taper. Drill presses, machine tools(morse/jacobs tapers), some engines, etc do not use a key. Do you really really think that little key is the only thing keeping the FW from slipping? Tapers provide a huge amount of contact area(friction/shear). Tapers can transmit huge amounts of torque. That's why many builders like to lap the taper surfaces. It ensures a more perfect taper contact area......uhhhhhhh.............

http://en.wikipedia.org/wiki/Machine_taper

I have been doing that for years, even when I put on a MSD Charging flywheel that did not have a steel hub........... Dooohhhhhh.... that was a mistake.........

 

[WaveDemon]

the 66V ports are different than the 66E ports.

pretty sure the port timing is the same. the port area is lightly different.

the best cylinders to have are the 60t because of lower port timing.

 

[Idok]

what is a 60t cyl used for???