Yamaha Octane build

new motor mounts are in. they are gp800 mounts that have had the base shaved down to about half the width. You can see a pic comparing the two. Lots more rubber to hold down that big motor now.
 

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RMBC Freeride

Vintage
Site Supporter
Location
Pueblo, CO
Holy S*%T!!! I had the pleasure of riding this BEAST yesterday and OMFG it is brutal! Now... it was not running at its potential because we were here in Colorado at 4700 ft sucking thin air, but I could tell this thing will rip your arms off!!! I cant wait to try it again a little closer to sea-level. Incredible!

Oh and now that I got to see this Octane first hand, I am impressed with Tom's work and attention to detail. It is all around a beatiful ski with amazing power. I think Tom is one of, if not the only guy running a 66e based motor that is really dialed (well in this case it's Lukes motor in Tom's ski). I have seen the light... "big blocks" (as I call them) are the ultimate for raw power! Thats not to say there is not a need for 62t based engines... they can still rip, but for brutal power, this is it!

I dont know what else to say... it was a beautiful October afternoon in Colorado and I had a great time rippin' around with Mr. Ramjet! We swapped Octanes back and forth... they are so totally different. goes to prove that weight, horsepower and power delivery can make the "same" ski a totally different animal. (the "big" hulls are coming...)

Tom, I hope you made it home safe... had to been really late...
 

sjetrider

615 Freeriders are addicted to T1 madness.
Holy S*%T!!! I had the pleasure of riding this BEAST yesterday and OMFG it is brutal! Now... it was not running at its potential because we were here in Colorado at 4700 ft sucking thin air, but I could tell this thing will rip your arms off!!! I cant wait to try it again a little closer to sea-level. Incredible!

Oh and now that I got to see this Octane first hand, I am impressed with Tom's work and attention to detail. It is all around a beatiful ski with amazing power. I think Tom is one of, if not the only guy running a 66e based motor that is really dialed (well in this case it's Lukes motor in Tom's ski). I have seen the light... "big blocks" (as I call them) are the ultimate for raw power! Thats not to say there is not a need for 62t based engines... they can still rip, but for brutal power, this is it!

I dont know what else to say... it was a beautiful October afternoon in Colorado and I had a great time rippin' around with Mr. Ramjet! We swapped Octanes back and forth... they are so totally different. goes to prove that weight, horsepower and power delivery can make the "same" ski a totally different animal. (the "big" hulls are coming...)

Tom, I hope you made it home safe... had to been really late...

Lucky bastard, call me when ya get a chance give me the 411 bro!:fing02:
 

dbrutherford

Parts Whore
Location
Fairmont, WV
I have been following you build and you guys sure did do a great job!

Not to be the negative nacy here but did you add any extra eposy to the cases for "insurance" opurposes?
 
Things just don't run well at high altitude unless you plan for it. I went up there thinking it will run close enough,I was wrong, its amazing how much power you can lose if you dont raise your compression. Beautiful lake and nice weather made the late night drive home worth it.
All Neil's boats are dialed and are set up perfectly. But especially, his lighter weight octane is what really appealed to me the most. While 300lbs doesnt sound lightweight to some sj guys it is very light for an octane and it feels better than a lightweight superjet to me, (we decided it must be the increased surface area that makes it feel this way, of course the snappy power of the lamey helps also) I feel more comfortable and had more fun on this ski than any superjet I've ever ridden. His lamey pulls without an hiccup and the ski carves as well as jumps out of the water. It does not feel like any other octane at all. I've got to have one.

Neil you really should post a detailed thread about your octane, its an impressive ski

My octane needs to go on a diet, 300lbs is were its at
 
I have been following you build and you guys sure did do a great job!

Not to be the negative nacy here but did you add any extra eposy to the cases for "insurance" opurposes?


i didnt feel there was a need, i've run 8mm lameys with less and had no problems, I'm not convinced there wasn't another factor involved in rotation's blow up.
 
Great day, the weather's still holding out, 75 degrees and still okay with wetsuits. We had both baja's out today making a v-wake. Luke and I got our first backflips today before the msd took a dump (think it's just a ground wire). Luke only got 5 attempts and I only got one, before the breakdown. The only real problem the ski is having is that pos kart tank, it flops around when you land upside down, I've got to get the sj tank in there soon.

luke has the first 4 ones, mine is the last one

YouTube - Backflips on boat wakes
 
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