Rev limiter

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Redlines are for pussies. Real men take it to 10k, like a real bike can handle.

Get or make a “Buelltooth” adapter or cable. Get a copy of ecmdroid or ecmspy, and take that rev limiter to 18,000.

That’s how you do it, but CoOters input was actually pointing you in the right direction, but you’re right… it is your bike. If you’re not keeping it over 10k all day, you’re wasting our time.
 
Yeah, kick rocks off his post bro!
Do you even race bro???
You’re just afraid he’s going to beat your record of how far you launched a part out of your engine case.

Hopefully he gets it on video and posts it. That.would.be.awesome!
 
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Sir: I asked Danny about this. He is the engineer who designed these motors. His reply was that the EBR "race" ECM in stock configuration and mapping allows the engine to rev to the upper limits of what the cams...lifters....pushrods...bottom end will tolerate. You can change the "rev limit" via ECM SPY but not recommended. Link below has nice discussion. Link below is Danny commencing @ 2:20 mark. He's the absolute expert. Not I or anyone else on this board.

https://www.buellxb.com/threads/max-rpm-for-xb12-ecm.30190/
 
He doesnt have time for this "engineer" nonsense. He's installing a big bore kit and needs to raise the rev limiter to make MAXXX POWA!!!!


Here is something to consider. One of the premier big-bore high horsepower companies, Hammer Performance has a list of dyno charts and most of them shut off at about 7500 rpm, which is what I think the 2008 XB12's redline is.

If one of their highly tuned, high horsepower motors were making power after that, they'd be sure to show it, as it just makes them look better, and demonstrates to the customer they are making as much hp for their money as possible. But for some reason, they stop logging around 7K. There may be a reason.

Also, like what Sensei Barrett mentioned... the stock cams, valve springs and heads and other parts probably cant handle much past the stock redline, and neither can the bottom end. A few people have send their cranks to Dark Horse for reworking, balancing and other magic to push the redline higher. I think I still have a video of Magnesium Mike's ultra quick and high revving XB9 and its AMAZING.

The coveted race only XBRR only had a redline of 8400, but if you seem intent to raise the redline... go ahead. I need spare parts and the used market has dried up a lot.

I haven't even mentioned that you're going to have to keep the rev's down for at least the first 500 miles per the manufacturers instructions. Their engineers have determined proper break instructi.... ahhh never mind. EFF THEM AND GET ON IT!

In ECMSpy its under the "Limits" tab towards the middle, then the "Engine Speed" tab on the far left.

If you're setting it less than 10K, you've wasted our time.



and yes, John... you are an expert. I only stand on your shoulders, sir.
 
Redlines are for pussies. Real men take it to 10k, like a real bike can handle.

Get or make a “Buelltooth” adapter or cable. Get a copy of ecmdroid or ecmspy, and take that rev limiter to 18,000.

That’s how you do it, but CoOters input was actually pointing you in the right direction, but you’re right… it is your bike. If you’re not keeping it over 10k all day, you’re wasting our time.
I’m in school and literally only come here when my instructors are busy or just can’t answrer about buells. I’ve been riding since I was 13 money is not an issue for me. I just don’t wanna be like a rhe guys who go buy the latest Ducati.
 
I’m in school and literally only come here when my instructors are busy or just can’t answrer about buells. I’ve been riding since I was 13 money is not an issue for me. I just don’t wanna be like a rhe guys who go buy the latest Ducati.
You know why this topic became a joke, right?
Isn't about the money, or consequences.
Specting a twin-v to rev like a rotary is proof that you don't know physics and or mechanics. Going further to do it is only a fight for endurance and not power or any type of gain.

Is quite dumb to be honest, but who I am to judge the battles you choose to fight.
 
If you’re dead set on raising the rev limiter, go for it.

While you’re in the ecm, do your bike a favor and remap it. If you don’t know how to do that, you shouldn’t be messing around with the rev limiter.

You can also get free maps from Revmo Dave if you’re a customer of his, or you can send in your ecm to Tim at IDS and he can remap it for you.
 
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