| Author | Message | ||
     Igneroid |
I posted this on OLD SCHOOL as well... Ive been drag racing the M2 here(1/8th mile) at four different events this year. I have been steadily improving but my 60 foot times still kinda suck. The best being 1.870 causing me to break out. My index was a 7.790 and I ran a 7.775. My mph for this run was 91.46. With the afforementioned info, can you more experienced racers give me an idea as to what my 1/4 mile times might be? There were alot of cars racing that were running 7.5 with 86 mph but with 1.6 sec. 60 foot times. If I can get my 60 foot times to around 1.6 seconds and with my higher mph, will I be making high 11's in the quarter or am I dreaming??? | ||
| Simple |
assuming motorcycle times are the same as when it comes to drag racing cars (my experience), that a drop of 1/10th in your 60ft times should equate to a drop of ~.15 on the big end. also most vehicles will gain 21-23mph from the 8th mark to the 1/4 mark. my guess off a ~7.80 1/8 et with a 1.8 short time, would be a 1/4 of high 11's at maybe 114mph...? very rough estimates. a quicker 60' time will result in a faster ET but 'usually' results in a little bit lower mph. | ||
| Firemanjim |
Need more info on your set-up, wheelbase,bar,2 step, engine mods etc??? | ||
| Hurricaneleah |
igneroid, I'm running about 1.595-1.600 60 ft and a 1/8 mile mph of 101-102mpH. Quarter mile time is in the 10.70 range/125mph. Bike is geared to work as a 4speed with an extended swingarm (+7) and a strut. no training wheels.....I mean wheelie bars. | ||
| Torqd |
I just ran my buell for the first time friday night. I only made three passed(too many cars at track)one with a missed gear. I have not really tried to launch my 130hp buell on the street as it wheelies in the first three gears pretty easy so it was an experience as you could imagine with stock wheelbase. Short story is... basically 2 passes... my best was: 11.35 1/4 125mph 7.45 1/8 102.4mph 1.93 60ft I should be able to beat this with a little practice... I am shooting for mid tens on stock wheelbase at my next 1/4 mile outing... but I might just try to get to the semi local 1/8 mile to practice the 60ft and launching. Have fun I know I did | ||
| Mikef5000 |
Here's my one and only trip up the the QM. I only ran 1/8 mile as well, and I believe it was 8 seconds at 86 MPH. You can hear the revs drop pretty low on the launch, and I wasn't tucking or anything. I just did it for kicks. | ||
| Igneroid |
Thanks guys... Simple: Thanks for your take on things. I was feeling good about the M2 this weekend and felt I was in "11"" territory. Ill have to find a 1/4 mile track and see for sure. Firemanjim: Its a2002 M2 Cyclone, Mikuni & Vance and Hiney slipon with non race header. It has 18000 km(11,500 miles?) and has always pulled impressive since I bought it a year ago Hurricane: I wont ever get into the 10's with the M2 as it is now but Im hoping to get near your 60 foot times. If I could cut 2 tenths off the 60 foot, Id be around 7.5 in the 8th. What Im shooting for....Any lauch tips appreciated. Yours are impressive. Torqd....Holy hormones man! Impressive figures for a tuber. Read your profile and Im thinkin with 60 foot times like hurricane, you will be low to mid 10's. Some day Im gonna hormone up the M2 as well... Mikey: 8 seconds on your first run is very good. I was like 8.6 or somthing on my first run in May, shakin like a dog shitting razors. Nice vid... | ||
| Hurricaneleah |
Hey Igneroid, Absolutely have fun with your bike! I'm really a road racer who started drag racing because it was close by and would be good for my road race starts, and then got addicted to it. My drag bike is actually my old road race tuber. Its a true 1200cc engine at around the 100hp mark. As far as launching a stock wheelbase tuber, it is a bit of an exercise in frustration as you are wheelie limited . the first 60ft are absolutely critical. I usually launch at around 4000 rpm but i have a 7" over swingarm. just try and get to WOT as quickly as possible without wheeling too badly. Maybe there are people out there that can do a 1.600 60 ft on a stock wheelbase bike with no bar, but I ain't one of them! There are a couple of things you can do that are reversible to make a street bike a better drag bike: Tire pressure: I run about 90psi in the front to reduce rolling resistance. I run a pirelli medium roadrace DOT in the rear at 27psi hot (after a lap). People will tell you to run a bunch less, but i scientifically made 20 some odd passes changing adjusting tire pressure from 10psi in 2psi increments. ET was about the same from 20psi to 27psi, but MPH kept increasing with more pressure to 27psi, with no further change through 40psi (60 ft got slower after 28psi). The bike was 2/10ths slow and 3mph down at the 'recommended' 15psi.... Anything you can do to lower the stock wheelbase bike will go further than hp to lower your times. Drop your forks in the trees as much as safely possible. You can make a strut out of a stock car a-arm bar and heims for about $35 bucks and lower the bike further. This is the best bang for the buck you can possibly do for a stock bike. lowering the bike will be worth about 4/10ths et. Upside down/GP shift pattern: Much much easier to drag race a bike with GP shift. easier to shift with the bike in a wheelie or slightly out of shape. The 2001 and later X1/S3 style shifter is a bolt on and is easily reversible. Well worth the money.... Clutch: Just as throttle and brake control are critical in road racing, clutch control at launch is critical in drag racing. Clutch adjustment is critical for good feel, distance from bar, and good clutch control. I go a step further and run 5W synthetic ATF in the primary. Outstanding clutch feel/life and it frees up about 1hp. Not recommended for a streetbike. Good luck with your M2!Buells are a riot on the strip for sure. WARNING: YOU MAY BECOME ADDICTED! | ||
| Torqd |
Hurricaneleah... what is the easiest way to strap the front end down... I see Pingle has a setup you put your axle through but the Buell is too big on one side I would think... any suggestions... I have already machined a strut... I have 1in over stock and 2in over stock holes... the 2in over makes my belt rub my 2000 aluminum swingarm... but I could go lower than on inch... I might machine another hole at the other end to make it 1.5 Thanks in advance | ||
| Scott_in_nh |
on tubers you mount the strap to the caliper mounts on both sides. |
