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post #1 of 53 (permalink) Old 06-12-2016, 01:39 PM Thread Starter
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I spent a great week on the wicked twisty roads of southwest Missouri and northwest Arkansas. My `15 XCT has Witchdoctor muscle baffled slip on`s and Loyd`s EFI tuner. Bike will not find happy place in the torque curve to handle tight twisties. I have to keep bike in lower gear and higher rpm. Is 3200 rpm normal for this bike with this set up? Seems like at that rpm it runs out of torque quick and now I'm tap dancing on the shifter to keep it on the pipe. I guess I need a GXR, but the 670 miles one way to get there is an awesome ride. I'm open to feedback. Godspeed.
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post #2 of 53 (permalink) Old 06-12-2016, 02:08 PM
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Depending how sharp and what speed you're at. But for me what I would call twisties I'm usually between 3 and 5 the gear. I'm probably between 2,500 and 2,800 rpm which gives me plenty more if I need it. However, speed and how aggressively you're riding will have an impact. Tell us more about those things and I'm confident someone here can tell you if your problem is normal. My experience is that I have ample torque at the rpm's mentioned above with tons to spare if I need to get on it.
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post #3 of 53 (permalink) Old 06-12-2016, 02:12 PM
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Originally Posted by sand man View Post
I spent a great week on the wicked twisty roads of southwest Missouri and northwest Arkansas. My `15 XCT has Witchdoctor muscle baffled slip on`s and Loyd`s EFI tuner. Bike will not find happy place in the torque curve to handle tight twisties. I have to keep bike in lower gear and higher rpm. Is 3200 rpm normal for this bike with this set up? Seems like at that rpm it runs out of torque quick and now I'm tap dancing on the shifter to keep it on the pipe. I guess I need a GXR, but the 670 miles one way to get there is an awesome ride. I'm open to feedback. Godspeed.
Yes 3000 and above in a lower gear 3,4,5 is normal. in the twisties.

6th is just for plodding down the interstate on flat ground at 70 or so.
Just because it will go up hills in 6th doesn't mean it is the best choice.

I run the PCV and set it up with the extended rev limit because I hated it falling on its face at 5000. That helps.

The Loydz ATS will help ( LLOYD'Z: Adjustable Timing system, LLOYD'Z Motorworkz) which corrects the emission timing to something more snappy. It just makes the bike more of pleasure to drive.

Rev em up, they like it and it's good for them as long as you warm them up first. The rev limiter is very good, Not a hard limiter.
It just winds the torque down above 4800. By red line they just won't go.
If the rev limiter is stock they run best between 3000 and 4800.
The limitation is electronic, not a breathing problem with the engine. When you set the rev limit higher with the PC-V it acts the same as it did between 4800 and red line, only the torque begins to fall off at a higher number and red line is moved up also. Gives you another 500 or so rpm of usable torque.

If you want need more power than that, cams are in your future.

These bikes have a very strong lower end unlike the other American brand. RPM is their friend.

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post #4 of 53 (permalink) Old 06-12-2016, 03:51 PM
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Here's my dyno graph, at the end of a trip to Lloydz a year+ ago, to get a PC-V and his air filter installed. You can see that the torque is fairly constant between about 2700 - 4700 (with the HP going up, of course).

That said, when I'm doing twisties -- say, Deals Gap or equivalent, or a track day (and I've done two on the XCT now) -- I keep the bike in 2nd or 3rd gear most of the time, with the revs up around, oh, 3500 - 5500. 3rd gear will get you up around 90 mph, way faster than you'll want to be going if you're really doing twisties (or else you're one heck of a rider).

When you're at speed in twisty-land, the practice generally recommended is to keep the revs up. This enables your wrist to have more fined-grain control of what's going on, i.e., a more direct link to what your brain/wrist wants and what the bike's doing underneath you. With high revs, you get more immediate pick-up response when you want to speed up, and more immediate response when you want to slow down, and more engine braking.

I first learned, formally, about this high-rev technique back in 1998. I had been street riding for only a year or so, and my wife and I did an Edelweiss tour in Europe. The very competent and experienced guides pointed out the first day that that's -- high revs -- how you want to deal with the switchbacks and other twisties we'd be encountering in the Black Forest and Alps (along with some other tips).
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post #5 of 53 (permalink) Old 06-12-2016, 04:32 PM
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What most have said, rev it.
Really comes alive three to five.
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post #6 of 53 (permalink) Old 06-12-2016, 04:48 PM
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keep in mind your pushing 850 pound bike and your weight added of bike threw the twisty.
So 6th gear is out of the question. So yeas a lot of 4th an 5th gear and in some turns down to 3rd.
For $300 bucks you can go to under size pulley and another $150 for a belt and then you'll have plenty of torque in the twisty

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post #7 of 53 (permalink) Old 06-12-2016, 05:28 PM
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I use second in tighter hairpins, there's one second gear hard lh bend on the mountain behind me that will drag a peg too.
Sure it'll take it in third.
But better drive out the other side in second.
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post #8 of 53 (permalink) Old 06-12-2016, 05:39 PM
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3200 is pretty much bang on for my riding in the twisties. It's just enough inside the power band that moving the throttle either way gets instant results which is what you want in that type of riding.
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post #9 of 53 (permalink) Old 06-12-2016, 11:12 PM Thread Starter
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[QUOTE=visionjohnny;1990010]keep in mind your pushing 850 pound bike and your weight added of bike threw the twisty." Are you calling me fat? I was two up with my petite brave wife along for the ride. I'll twist it and let it rev.
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post #10 of 53 (permalink) Old 06-12-2016, 11:52 PM
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If you are really riding twisties and not just curves, you will have tons more throttle control in 2nd and 3rd with the tach at 4K plus. I can not believe the previous posters using as high as 5th gear and revs as low as 2500. Nothing happens when you twist the throttle compared to being in lower gears at higher revs. You ain't going to break it fellas. These things love to romp,so go out there and have fun with it.
If you take my advice, you can lean the bike more with more throttle and conversely, stand it up with less.
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