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Dirt Bike Brands - Other
426F cyl. head
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[QUOTE="Boit, post: 126363, member: 19734"] I was hoping to spark some discussion about this cylinder head. Thanks. Also, to drift off topic a little and to respond to the exhaust issue, I would like to add my opinion based on my experience. The first thing I noticed on my 426 was that it seemed to be very soft on the low-end compared to my Stroker KLX 338. Yes, it had a fairly sudden burst of power once it reached the low-mid, but I expected more on the low from a 426cc machine. After installing a certain aftermarket headpipe/silencer combo, the off-idle power came alive like an angry wasp and tamed the transition into the mid range. As a side note, to make the most of this engine, I DID begin using C-12 fuel and jetted crisp to attain the throttle response that I demand. The stock exhaust allows the engine to rev very well, but not all riders want to hit the rev limiter corner to corner. I prefer to shift when my seat-of-the-pants dyno says that power is beginning to wan. The low-end burst that I now have allows me to feel confident that I can drive hard from the inside line and accelerate enough to clear a double that the 2-strokes need a better run at. This is my strength but at the sacrifice of another weakness. Doug Dubach is notorious for hitting the rev limiter. Well, he's light years faster than I will ever be. I race/ride for the sheer pleasure and fun of it. I've been riding since I was 12 and am now 48 and it's more fun than ever. It's fun to not only ride, but to piddle with my machine. I don't drink, smoke, gamble, do drugs, chase women..etc. I live for dirt bikes and I make no apologies for that. Oh, I DO wear a size 11 Aunt Marilyn style butt-hat. [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
426F cyl. head
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