Octane mikuni intake manifold and some other questions

Billybo455

Billybo455

Location
Central FL
where can i find an intake to match up to mikuni's? i've searched for the last 3 days and still have found anything on it.

also any idea on a slightly higher comp head?

i'm obviously new to the octane game, but my tray foam is still dry and the ski is a lot of fun. the stock carbs do suck for sure, so i'd like to put some 44 sbn's on it. i'm going to mill the flywheel to cut some weight, get the ignition reprogrammed. anything else i'm missing?

love the ski :)
 
FlightRisk

FlightRisk

Location
Kansas City MO
Billybo455 said:
where can i find an intake to match up to mikuni's? i've searched for the last 3 days and still have found anything on it.

also any idea on a slightly higher comp head?

i'm obviously new to the octane game, but my tray foam is still dry and the ski is a lot of fun. the stock carbs do suck for sure, so i'd like to put some 44 sbn's on it. i'm going to mill the flywheel to cut some weight, get the ignition reprogrammed. anything else i'm missing?

love the ski :)
Click to expand...

You can always buy the manifolds from Randy at Watcon, but I would also pm THUNDERCAT and see if he has anymore Mikuni setups for an Octane.

Do yourself a favor and put some drain plugs in the back of that ski to keep your foam dry. Seems to be a great solution PRIOR to the water logged discovery......
 
Billybo455

Billybo455

Location
Central FL
thanks for the tips. thundercat beat you to the punch, he's already pm'd me and i believe i'll be going with a setup from him. will be doing the carbs, intake, lighten the flywheel, and a cdi reprogram. i'm sure that will get me through the summer :) i wish there was more info available. there's so little out there it's really hard to find. there's not even an octane on wiki haha
 
FlightRisk

FlightRisk

Location
Kansas City MO
Lets make an Octane on Wiki!

I have the CDI thing done, but I never rode mine before that was completed. Just seal the box up really good I think theres a nice bead of 5200 around mine!

I know a couple other people with the same setup with the carbs, should ba a ripper in the midrange and top end.

I would suggest the pump gas domes from Watcon too. Or mill yours down.
 
cjbchopper

cjbchopper

Location
West Michigan
It would be awesome to see some pictures of a lightened Polaris Flywheel. I have never seen one that has been milled down. Randy told me that was not a good idea.
 
Billybo455

Billybo455

Location
Central FL
the flywheel is a monster. i'm sure i'll be able to take some material off of it. if worse comes to worse i'll just have to get another :) that flywheel is a tank though!

are the domes interchangable with any after market heads?
 
cjbchopper

cjbchopper

Location
West Michigan
Randy claims that the Polaris wheel is not very strong as is, supposedly it will crack if milled down. I am also going to try it this summer if I can't find a MSD setup.
 
Billybo455

Billybo455

Location
Central FL
how is your ves project coming? i'm also interested in that. if it comes down to it. i'm sure i can draw one in cad and cnc it out of aluminum and press a steel ring on for the starter. it would be a pain, but i could cut the starter ring off the stock flywheel.
 
cjbchopper

cjbchopper

Location
West Michigan
The VES top end I am trying uses 88.85mm pistons that should be around 910cc. I need to install the engine and try and fit the exhaust. The VES cylinders are not ideal, I wish I had a non VES big bore setup. The exhaust manifold bolts up at an angle, rather than straight, not sure if the pipe will fit. I will keep posting my progress with it.
 
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FlightRisk

FlightRisk

Location
Kansas City MO
cjbchopper said:
The VES top end I am trying uses 88.85mm pistons that should be around 910cc. I need to install the engine and try and fit the exhaust. The VES cylinders are not ideal, I wish I had a non VES big bore setup. The exhaust manifold bolts up at an angle, rather than straight, not sure if the pipe will fit. I will keep posting my progress with it.
Click to expand...

Arm ripper for sure. I need to ride it to believe it though...... free demo??:biggrin:
 
cjbchopper

cjbchopper

Location
West Michigan
I emailed Harry at Group K. Asked him if he offers a flywheel lightening service for Polaris Octane flywheels. He said that "the Polaris flywheel design does not lend itself will for the lightening service." If someone tries it, lets see some pics.
 
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