| Author | Message | ||
     Lilchico95 |
wHAT CAN I DO TO GET A HIGHER REV LIMITER, I SEEM TO FIND MYSELF IN THE LIMITER MORE OFTEN THEN NOT. I HAVE A RAce KIT , BUT WHATELSE CAN I PUT ON IT TO GET A FEW MORE GRAND OUT OF THE LIMITER, IF THERE A JUMPER AVAILABLE ? | ||
| Etennuly |
Just learn to shift sooner, revving higher will put you where it might sound great screaming, but you've already gone past your maximum horse power and torque range. | ||
| Lilchico95 |
I shift when needed, i would just like a higher limit if possible | ||
| Fookinbueller |
I have to agree just learn when to shift your beast... plus the limit is there for a reason... hate to see you blow your powerplant up! There is a lot of heavy slinging metal in there, do you realize that @7000rpm the engine is spinning just over 116 times per second the forces in play are phenomenal! Just a thought... | ||
| Lilchico95 |
shifting isnt the problem , i know how to stay away from the limiter, but when riding with ppl with inline 4s its hard not to hit it once in a while, in the straights.im a curve man myself but every once in a while id like to walk a inline down in the straight.i already do in the curves | ||
| M1combat |
Higher rev limit won't help you with that... Talk to any of the site sponsors that do engine work. Buells aren't exactly designed to be monsters in a straight line. | ||
| Indy_bueller |
You can't increase the rev limit. If you could, the engine would probably grenade in short order. These aren't high-revving engines. | ||
| Sloppy |
When you talk about engine revolutions, what you are really interested in is Piston Velocities. Piston Speeds are an indication of how fast you can spin your engine before it gets destroyed. And to put things in perspective, when you push your Buell engine to the rev limiter, those pistons are actually moving FASTER than what some of the inline 4's are moving. Look at this way -- a 600 cc engine needs to spin TWICE as fast to pump as much air as a 1200 cc engine. Hence, since a 600 cc 4 cyl. typically redlines at 14,000 rpm, a 1200 cc twin redlines at around 7000 rpm... Would you push a 4 cylinder engine to 18,000 rpm? Of course not, so why try to push the Buell to 9,000??? If you want to increase the speed of the engine then you need to reduce the stroke. Then you'll need to abandon the CIB to a OHC so the valve train can keep up... | ||
| Fullpower |
"A FEW MORE GRAND OUT OF THE LIMITER," NO. A few more grand would put you in the 10000 rpm zone. A hand grenade would be both less expensive, and easier to throw. | ||
| Ft_bstrd |
You need one of these:  And buy one of these:  You've got the wrong tool for the job if you are trying to win straight line races. | ||
| Trojan |
shifting isnt the problem , i know how to stay away from the limiter, but when riding with ppl with inline 4s its hard not to hit it once in a while, in the straights.im a curve man myself but every once in a while id like to walk a inline down in the straight.i already do in the curves You have answered your own question there. Sell your buell and buy a IL4 if you want to keep up with them. Or wait for the magical new Buell in around one month's time of course........... | ||
| Djkaplan |
The best way to beat faster bikes in a straight line race is to jump them... just like Wildcat pilots did to Zeros at the beginning of WWII. Case in point: I had a guy follow me onto an entrance ramp on a highway and goad me into a roll-on race. I pretended I didn't see him and just casually merged into traffic. A mile up the road, the police had someone stopped and traffic was slowing because of the rubberneckers. Of course, the idiot on the (I think it was an old Katana 1100) inline slowed down to look too. I was in the left lane about 50 yards behind him and crept up to almost where he was. I had to exit on the next ramp about a mile up, so I just hammered it. Dipshit on the Katana saw me and the race was on. I had about 20 mph on him when he got low on the bike and gunned it. I was going just fast enough to edge past him while I had my head turned looking right at him. He couldn't catch up in time when I made my exit. I hate to say it, but I flipped him off, too. I'm sure the police weren't very happy... maybe they got him further up the road. | ||
| Tigerbythetail |
deleted (Message edited by tigerbythetail on June 12, 2007) | ||
| Ft_bstrd |
Tiger, You can play with them. For a moment. Until their torque curve and HP curves catch up, and then it's bye-bye. Dj jumped him and got off really quickly. One exit more, and I presume the story would have ended differently.  | ||
| Ridrx |
Pick your battles. I ride for fun, rarely if ever race on the street, but if a local squid with lacking skills and a new mommy bought ricer gets lippy, well then... I can honestly say I have never lost a race on my 'Bolt...3-0 haha 1.sv650...his tires were BALD, but as he pointed out he had a pipe. 2.VFR800...the light turned green, he never had a chance(I've been in front of a christmas tree more than once). 3.sporty1200?...that was just too funny. Like I said, pick your battles and enjoy being undefeated...LOL | ||
| Lilchico95 |
Its not that i want a different bike or need a different one, dont get me wrong i love the 12r that i have, i love to hang a curve and drag a knee everyone in a while but coming out of a curve onto a straight and a inline is infront of you id like to be able to stay with it on the straight , instead of catching him in the curve, i want the pleasure of kickin that butt in the curve aswell as the straight before the next curve. | ||
| Paintballtommy |
speed costs money... how fast do you want to go? anything is dooable but you gotta be willing to put out the cash. | ||
| Lilchico95 |
I was wondering would changing to the chain conversion help with this ? | ||
| Paintballtommy |
you could probably pull a taller gear with all the torque the xb has and you can change that with different sprokets or pullies, youll still never catch them in the straights unless you do some major work on that motor. | ||
| Slaughter |
I was wondering would changing to the chain conversion help with this ? Not really These bikes are not going to ever compete with any of the inline fours - 600cc and certainly not the 1000cc - they were never intended to out-pull them. Face it, acceleration is a combination of weight, horsepower and a couple lesser things. Higher revs can't buy you more power without HUGE investment in the motor and big hits in reliability. These bikes are really designed for fun riding. They'll race against other twins and NONE of the twins can really race against the 4-cyl bikes on an equal footing. Besides on the straight, it's nothing to do with the rider, you're really racing spec sheet against spec sheet. Turns are where the fun is. | ||
| Froggy |
Chain would do nothing unless you used a different size sprocket, and that would affect your acceleration and top speed, depending on the size of the new one. | ||
| Ft_bstrd |
You could do the 12 to 9 primary chain conversion. It will lower all of your gears. The problem is that at 120 indicated, you are done. It just ain't gonna happen with the 12R. Period. You would have to jack up your bike and ride the equivalent of a new bike underneath it in cost to get the bike you are asking for, but with less reliablilty. Under these conditions, top end speed: Deals Gap--Makes no difference HWY 28--Makes little difference Cherohela Skyway--Makes little difference HWY 116--Makes no difference HWY 85--Makes no difference Be the gator. Hide where it's murky and bite 'em in the ass! | ||
| Strato9r |
Be very careful; as stated above, effective RPM limits are primarily dictated by piston speeds and acceleration/ deceleration rates. To give a general idea of what kind of forces are in play, the pin end of a 350 Chevrolet connecting rod momentarily is subject to roughly the weight of a modern locomotive when the piston passes top dead center on the intake/exhaust overlap phase at 8000 RPM. Lighter pistons and stronger connecting rods will help, of course, as will reducing stroke. Of course, bore size must then increase to maintain equal displacement, and that works well, as displayed by the power output of RC_51 Honda and Ducati twins. Neither of those engines have pushrod valvetrains, though, which in the traditional Harley/Buell layout is a limiting RPM factor as well without high quality replacement pieces. The bottom line is: The air cooled engine as used in current Buell motorcycles does what it does; provide smooth power delivery and lots of useable torque throughout it's power range. It is a simple, reliable, low maintenance powerplant. The fact that it's based on the '57 Sportster engine, which can trace IT'S lineage back to around 1930, is really amazing, but it, like the BMW boxer engine, is very close to it's reliable limits in terms of power output. But, there is no radiator. Within it's power range, it converts gasoline to power very efficiently. It simply wont make more power by revving it higher without major expenditure. Above, Daniel's analogy of the WWII fighter tactic tells you exactly how to gain extra exit speed leaving a corner. Setting up a line early will almost always allow you to get back on the throttle earlier, and even carrying an extra 5 or 6 MPH out of a corner will take a big hunk of horsepower to overcome without a lot of distance. But, learn how to ride your soon - to - be old school air cooled Buell like that now, and a couple of years from now when they bring out the 190 hp XXB, no one will be able to touch you, anywhere.... | ||
| Sub65chris |
some here seem to be getting away from the fact , and this is not all of you , but these xb bikes( and tubers) are like nothing else out there ! I roll up to a stop and people just look because most of them dont know what they are looking at. I ride for me and for the arguments that i get in about how the fuel "cant be held in the frame , because then you cant get it out" (im not kidding). if i wanted to be like all the cookie cutter bikes out there i would not have bought my buell in the first place. Ridrx - yeah i got one gsxr 1000 , it was his first bike and the second day he was riding it ! I was just happy he didnt get hurt.like you all have said pick and choose your battles  | ||
| Xbullet |
hey chico.... one of our sponsors might be able to help you build a hot rod motor from the ground up...(johnson engineering maybe) and also you could talk to the folks that make a 91" long block for XB. hope you got the cash and the patience to fix all the stuff that shakes loose. OR>>>>> you could step up to the plate and buy the XBRR. 150 hp is 20% more ponies than my brother's kawa 636..... by the time you are done, all these options wind up costing about the same. and the bottom line is that most riders (let me say it again....) MOST riders are on bikes that have more speed/power than the rider is skilled enough to harness. just cause yer bike can go 180mph doesn't mean it should do so with you on it. | ||
| Djkaplan |
"Djkaplan.........its a bit of an illusion if you think you can play with a guy on a modern bike like a Blade or R1". Okay... I'd defend that illusion if you could just show me where I said it. | ||
| Djkaplan |
"One exit more, and I presume the story would have ended differently."  | ||
| Lazyj |
I just assume get were I am going in style and having fun rather than in a pine box.... | ||
| Tigerbythetail |
deleted (Message edited by tigerbythetail on June 12, 2007) | ||
| Djkaplan |
Hey Tigerbythetail, After 24 years of riding Japanese sportbikes, I am well aware of the their performance capabilities. After 7 years of Buell ownership (an M2, it's not even the the fast one) I am well aware of it's performance envelope as well. "...you are passed before you reach that next exit..." Okay... show me where I said I wouldn't have gotten passed by the next exit and I will defend that statement... as well as the other statement you are under the illusion I said. I don't care if you don't agree with something I posted, but geez man, I never said any of the stuff you seem to be taking umbrage over. I don't know if it's because of a language barrier or what, but save your lectures for someone who needs it. |
