Caught up with Lovedabueller this weekend by chance out at TWS and had a blast. We're both on '08 1125Rs. Mine has the Erik Buell Racing Race ECM and no inner airbox cover and Lovedabueller has stock airbox setup, stock ECM and his custom D&D pipe. He shows up in this video around 4:45 and walks away from me on the front straight. I'm probably 50 pounds heavier than him but the lack of the inner airbox cover just destroys any semblance of top end power, regardless of the weight difference. Right at around 120MPH (as I had reported a while back from a street test) the bike just sluggishly gains speed. At a "quicker" and tighter track like Grandsport Speedway I'd probably be inclined to ride without the airbox cover as I've tested the bike both ways and I like the small amount of low end torque you gain with it off, but at any track requiring speeds above 100MPH for any sustained amount of time, the inner airbox cover is undoubtedly needed to be competitive with other, sometimes smaller, bikes.
Enjoy the vid, I'll be posting up more in this thread.
The yellow bike ahead of you at around 7 minutes is riding dangerously crossed up. His butt is way too far off the seat, and he needs to lead with his head and turn his body into the turn.
I've seen a couple of really nasty high sides come from that kind of riding position, so be careful.
JD: That's Lovedabueller. He was riding with some new clipons I think and that may have affected his BP a bit, not sure though.
Danny: I don't think any hardparts were dragging. The tar snakes are generally pretty worn down so you don't notice them. Sometimes they can be slick, but you just sort of have to not pay attention to them because they can zap your mental confidence...at least that's what I've found.
Good examples JD! You're like a personal BP coach. Me and Keith (LDB) were talking about your offer to come ride with you but being down on time and money is getting the best of me. He has some chase video of me he's going to either upload or send to me and I'm very curious to see what my BP is like out there...
And to be clear, when you say crossed-up you mean ass hanging off and upper body not, correct? I'm trying my hardest to "kiss the mirror" when I ride so I hope to see if I'm doing it correctly.
So, first of all, I suck. Let's just get that out in the open. I got my ass handed to me in the races this weekend. So, it's not so much that I'm a personal coach as I'm just parroting the guys that DO know what they are doing and routinely point these same things out to me.
I doctored your image a bit to make it more clear.
Notice how the bike is turning right, but the rider is turning left? That's because the head is up high, the hips and shoulders are pointing the wrong direction. Instead, the head and shoulders should lean into the turn, not away from it, and "your ear should get poked by the end of your handlebar".
Look at this rider -- he has practically the same body angle as your buddy, but is turning left, not right! Now, we could critique this one for having the head a bit too high and the arms to straight, too, but that's minor when you see the difference in body angles between this one and your buddy...
JD: Right on. Hips into the turn and head down. I've read and re-read that in Twist of the Wrist II...I guess it just takes practice to get it correct. I fell into a "comfortable" phase about six trackdays ago and had to convince myself to change.
Wowzers! That is a FAST track! I've never heard of this place, where in Texas is it?
So...when you overran the turn and went into the grass... did you remove your hand from the front brake and coast it out with light or no inputs on the steering?
Nice Vid! To further add to the 'inner vs no inner' airbox discussion I can share Buell77 & my experience on the track.
Buell77 (1125CR, E-B-R Ecm, Keda RT-3, closed inner)
T_Man(1125R E-B-R Ecm [locked @105 AFV] HPE Race Exhaust, small inner cutout near filler cap 1" x 4")
Summary: Acceleration was identical between our bikes from 2nd to 6th (up to roughly 160mph) despite his CR's gearing advantage and my R's aerodynamic advantage. Conclusion: Removing the inner totally does destroy top end performance (I've personally tested this) but removing a small portion (via highscore's threads) has improved my low end with no loss in top end. Take this for what its worth because I know its a hotly contested topic - I just thought I'd share my objective experiences. Take care!
Geforce: Texas World is right outside of College Station, Texas...about 1.5 hours NorthWest of Houston. The front straight is banked. I was hitting top speeds of about 145 (should have been faster) and coming down off the bank and into turn one at about 115-120...the real fast guys hit it at 140-150...
When I ran off in turn 4 I let go of the front brake, especially when I saw the ditch I hit at 9:49. After that I just got on the rear brake about half pressure and basically just let the bike slow down on its own. There's no reason to risk dumping it in the grass by using too much brake. Had I been running the stock ECM and had more engine braking I wouldn't have gone so far, but screw that...I love the Erik Buell Racing ECM!!
T_man: Thanks. Could you possibly send me pics of your set up? I've seen highscore's thread but I'd like to see another modded box before I think any further of doing it. I'd totally agree with you about removing the inner box...it's a pig up top without it.
I wish I could, but I've left my bike at a friends who lives much closer to the racetrack which is 400 miles away. If you look up Highscores old threads - take a peek to what others have done. I opened most of the outer black filler cap insert but in regards to opening the actual inner what I've done is typically a much smaller opening than what others did.
I only opened the inner enough to airflow from an open filler cap insert to the airbox. Roughly about 1-2 inch high x 6 inches long. Approx. 95% of the rest of the inner is still closed and intact. Works for me and my bike.
youtube search results for "Ty Howard" will show a good number of videos on Body Positioning. This video below and the sequel to it (Body positioning 2) are also pretty good for getting an idea of what to do before heading out onto a track.
Rear facing video from Lovedabueller. Only in it for the first few minutes until he walks it on me and I get screwed. I'm mad at myself for not having that inner airbox on...and for being a fatass
I'm losing 40 pounds before the next track season. I have to!
EDIT: Torq, Ty's video's are great. Thanks for reminding me.
(Message edited by drawkward on September 28, 2010)
Awesome videos! Thanks for sharing, I love on-bike footage, especially of 1125s.
Jdugger - I appreciate what you do in giving advice to track newbs, however sometimes I disagree.
Regarding body positioning, there are definite schools of thought as the sport evolves and people analyze what works for the champions. Individual body mechanics play a large part in what works for each person. Length of arms/legs, relative position/flexibility of joints, etc. all conspire to create the vastly different styles that you see in the top riders.
A perfect case in point is Troy Bayliss, possibly the greatest superbike racer of all time. His style is what many "trainers" may consider unorthodox, but it cannot be questioned that it worked for him:
Looks remarkably similar to what is being "corrected" in the above stills. My advice would be to go to a reputable track school and work one on one with an instructor to learn the basics of track riding theory. Then experiment and keep lap times to determine what works best with your individual biomechanics. The best riders absorb all the information and constantly adapt to create the techniques that work best for them. Just another man's opinion...
You guys have some huge tracks out in the states, check out my local, 1st time round this track and i didnt get over taken once, however just as the video finished i crashed out on the bend in shot and totalled my bike, but its back together again now better than ever, shame i didnt get footage, camera got damaged in smash and this is all i could salvage.