Weight and air are big factors of course, but for me 146 was a good number on a gen1, and 151 is a good number on a gen2 with stock wheelbase and only exhaust and lithium battery for weight reduction. I don't think bodywork makes much of a difference at these speeds.Wow I did not realize Gen1's were so slow on mph on big end . I would figure sleek body work / 160 plus hp would mph better than a naked ZRX with just 1164 cc's @ 57" wheelbase .
I would mph 144 to 148 @ sea level on my ZRX just a mere 135 hp . I have kicked around running the bird more than the one pass its seen , but the track was so poor condition right after Harvey ( hurricane ) the desire has been very little with the new owners . If its not a big NHRA event there is ZERO track prep . Many bikes go down out there now with how slick it is .Weight and air are big factors of course, but for me 146 was a good number on a gen1, and 151 is a good number on a gen2 with stock wheelbase and only exhaust and lithium battery for weight reduction. I don't think bodywork makes much of a difference at these speeds.
I like reasonable track prep. I’ve seen no prep races with better surfaces than some days around here. Our DA is 1500 on a good day and I’m happy with 2500 any given day during the summer. 4500 is common on bad days.I would mph 144 to 148 @ sea level on my ZRX just a mere 135 hp . I have kicked around running the bird more than the one pass its seen , but the track was so poor condition right after Harvey ( hurricane ) the desire has been very little with the new owners . If its not a big NHRA event there is ZERO track prep . Many bikes go down out there now with how slick it is .
Thankyou! Much appreciated. I'm making slow changes so I can see what's actually helping. Want to throw my 43 tooth on the rear to ensure myself but I will try with the 41 first. Yes thankyou. I've never drag raced a motorcycle before and the busa is my first bike lol. I've only ridden dirtbikes when I was younger. And barely did that. I'm gonna go and drop the hammer and throw the clutch and see what fine line I need to be at. Until then, I'll do some GOOD maintenance to it lol.The pass looks pretty good. You just need practice. Get the throttle open and slip the clutch to maintain max acceleration and not wheelie. Play with your gearing and see what you like. For only 4 days at the track you are doing excellent.
It's not really about throwing the clutch so much as finding the right combination of setup (which you are already doing a good job of working on) but running both hands correctly. If you get violent with the clutch you will spin or wheelie. Somewhere on Youtube Ricky Gadsen talks about how to run a hand clutch on different wheelbase bikes. He is the man, I am not, but the graph below is from my 2008 with stock 2013 motor, hand clutch 68-1/2" bike. It takes me 0.3 seconds to get to 90% throttle, and a full second before the clutch is locked. Ideally this pass would be smoother and not drop all the way to 6000 rpms and I would have a better 60' and overall e.t. This was a 1.32 sixty. I need to practice but there is another story to my next steps.Thankyou! Much appreciated. I'm making slow changes so I can see what's actually helping. Want to throw my 43 tooth on the rear to ensure myself but I will try with the 41 first. Yes thankyou. I've never drag raced a motorcycle before and the busa is my first bike lol. I've only ridden dirtbikes when I was younger. And barely did that. I'm gonna go and drop the hammer and throw the clutch and see what fine line I need to be at. Until then, I'll do some GOOD maintenance to it lol.
that seems like a really solid pass! 1.32 woooo!!!! Damn I need that haha. Maybe need some engine work doneIt's not really about throwing the clutch so much as finding the right combination of setup (which you are already doing a good job of working on) but running both hands correctly. If you get violent with the clutch you will spin or wheelie. Somewhere on Youtube Ricky Gadsen talks about how to run a hand clutch on different wheelbase bikes. He is the man, I am not, but the graph below is from my 2008 with stock 2013 motor, hand clutch 68-1/2" bike. It takes me 0.3 seconds to get to 90% throttle, and a full second before the clutch is locked. Ideally this pass would be smoother and not drop all the way to 6000 rpms and I would have a better 60' and overall e.t. This was a 1.32 sixty. I need to practice but there is another story to my next steps.
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I’ve been 1.22 with my 1441 and a hand slider clutch on that bike. I’m gonna add a little nitrous to this setup and shoot for a 1.28 sixty.that seems like a really solid pass! 1.32 woooo!!!! Damn I need that haha. Maybe need some engine work done
Not many at the drag strip are concerned with MPH. ET is what wins the race...Wow I did not realize Gen1's were so slow on mph on big end . I would figure sleek body work / 160 plus hp would mph better than a naked ZRX with just 1164 cc's @ 57" wheelbase .
Strongly disagree, MPH is extremely important for both tuning and more importantly winning. ET is chassis and suspension set-up, gearing and rider. MPH is weight and horsepower.Not many at the drag strip are concerned with MPH. ET is what wins the race...
That's fine... That's your opinion. I stated mine. And they're both valid. Maybe I should have said it like this...Strongly disagree, MPH is extremely important for both tuning and more importantly winning. ET is chassis and suspension set-up, gearing and rider. MPH is weight and horsepower.
I did not say playing with gearing or shift points would pick you up a tenth or two. I started that by saying for example...I wish I could pick up a tenth or two playing with shift points or gearing on my pump gas stock motor bike. That'd be awesome. Got any time slips you'd like to share?
How about 7 second 120 mph bikes?That's why you don't see 8 second 140 mph bikes. #MPHmatters
It’s not all you need..... the quest to go quicker/faster never ends.Either way. I hope I can make it to the 9.49 with the chassis changes. That's all I need. Going this friday. will update with results.
Strongly agree. I'll rephrase. That's all I want out of my N/A journey. After that I'll be happy with it until the turbo goes on. It's just beginning haha cheersIt’s not all you need..... the quest to go quicker/faster never ends.