

Sasquatch
Lifetime Member
- Joined
- Apr 17, 2004
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- Yamaha's
Me to, Yamaha has taken interest in turbo's though, I believe this is how they will be able to keep using 4 strokes to achieve more power in a smaller light weight 4 stroke engines to lighten up their chassis which seems to be a issue for some new and old customers.
While I partly agree the problem comes when you add turbo, plumbing, wastegate and intercooler. The 3 hole is 8pds lighter then the 4 hole apex engine but add the extra turbo weight and the 8 pds disappears. Now compare the 1050, increased hp but with the added cost of weight. Now someone will say that the 1050 became the 998 so its lighter. With the hp involved the crank and rods if anything are heavier. I don't see the 998 being lighter then the 1050 to the extent of making up for all the turbo parts needed to make the hp!
We can argue however that the hp achieved is more then NA could achieve! This is true of course but leads down a different path. 4 stroke will never be lighter then two strokes just for the simple fact that 4 strokes have more parts. We can argue that we can build a 500cc 2 cylinder four stroke and turbo it to make 160hp. We probably would be able to with exotic materials but it must be strong to take the stress and has all the weight of the parts needed to make the power. As a package the best you could hope for is the same weight! So with all that in mind is running a very pricey exotic sled that makes the same hp with the same weight going to compete! How much lighter will the same tech make the two stroke.
My self I'm much happier with a heavier stronger less complex NA Apex powered sled. I have no need to compete with the weight conciseness crowd and turn my nose up at a few more pds. That is the Doo hype and propaganda that ended when they built a 4 stroke of thier own. The Cat chassis is heavier then the Doo, so is the reason everyone is on the Cat wagon because of weight? Reality is the Cat chassis is a copy of the Doo design, with enough changes to stop a lawsuit!
What is needed is Yamaha to build the pyramid chassis open up the frame rails enough to drop the engine where it should be, redesign the jack shaft to accommodate the rear facing exhaust. Then just add the Apex engine to the lineup and winner winner chicken dinner! 4 engine choices in 90 130 160 and 180plus all in the same chassis! Where do I sign up for one!