>9.99 second ET?

Pondering if possible to beat 10 sec 1/4 ET's on skinny tire push rod road bike?
Extra hot and light 750's even Norton can get into upper 10's w/o wheelie bar if front lowered. Takes most elite hi powered factory bikes to even touch 10 sec ET's and that's where the moderns most excel - bee line sprints..
Pure drag race only bikes with similar power have length and wheelie bar on wide slick as advantage, so not a road bike I'd encounter. Yet I did encounter and even get to ride an H2 triple 3 smoke with 6' wheelie bar out here in very twisted highway, but it turned ok and only lifted the rear out of traction for instants as it straddled dips in the road. H2 was terrible dog until near red line then woke up like pulling trigger on each gear. Not fun as a road bike, but neat to look at.

Here's review of last decades scope of 2 tire get go.
http://www.totalmotorcycle.com/download ... harts1.htm
Vehicle Year BHP 1/4 Mile Seconds 1/4 Mile mph
Kawasaki ZX-14 2006 197 9.7 147
RSS Yamaha R17 2001 160 9.8 152
Suzuki GSX-R 1000 2001 152 9.8 144
Suzuki Hayabusa 2002 160 9.9 136
Holeshot Turbo R1 2001 215 9.9 145
Ultima GTR720 2006 720 9.9 143
Dyno Mite R1 SPX 2001 156 10.0 126
Kawasaki ZX-12R 2002 163 10.3 137

Quarter-Mile Times for Popular Motorcycle Models
Motorcycle USA routinely gathers quarter-mile times in comparison reviews of high-performance motorcycles. Here are some of the latest quarter-mile times we have recorded for popular motorcycle models:

2009 Superbike Comparsion
Ducati 1198 10.09 @ 139.9 mph
Honda CBR1000RR 9.68 @ 138.8 mph
Kawasaki ZX-10R 10.05 @ 141.5 mph
Suzuki GSX-R1000 10.01 @ 141.9 mph
Yamaha R1 10.53 seconds @ 137.5 mph

2009 Supersport Comparison
Ducati 848 11.09 @ 134.37 mph
Honda CBR600RR 11.10 @ 128.99 mph
Kawasaki ZX-6R 11.11 @ 133.74mph
Suzuki GSX-R600 11.11 @ 132.33 mph
Triumph Daytona 675 11.30 @ 133.25 mph
Yamaha R6 11.25 @ 134.11 mph

2008 Hayabusa vs ZX-14
Suzuki Hayabusa 10.378 @ 139.36 mph
Kawasaki ZX-14 10.398 @ 139.08 mph

2009 V-Max vs B-King
Suzuki B-King 10.42 @ 143.99 mph
Yamaha V-Max 10.85 @ 137.5 mph
Professional Motorcycle Drag Racing.

Two more decade review charts too big to post but can scan here
http://cyclehp.com/?page=chart
http://www.dragtimes.com/Kawasaki--Moto ... acing.html

mike fitzgerald in the ahdra ran 9.93 with a 1200 with only about 110 hp, it was in an aftermarket chassis with 7" slick.

BMC says 440 lbs wet plus my 160# = 600 lbs.Buelliedan dyno'd Loretta at 126 HP to the road.
0.21HP/lb =156.6 Watts/pound ≈ 1HP/ 5lbs
In contrast, my XB9R was around 420 lbs(580 total), but only 76 HP, as dyno'd at HC-HD when she was a year old.
0.13 HP/lb ≈ 1HP/8 lbs.

YouTube - BMW S1000RR Runs a 8.44et at 161mph in 1/4 mile! Stock Engine!

Here's fun calculators that ignores pilot and bike set up and tires etc.
I weight 165 suited, hope Peel is under 340 lb for ~500 total plus maybe 120 rwhp.
http://robrobinette.com/et.htm
http://www.race-cars.net/calculators/et_calculator.html

What are the best times and speeds achieved by Commandos to date and what state of tune were they in?

120 rwhp..... :roll: :roll: :roll: :roll: :roll:
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Philippe

Ain't no way. Hate to sound defeatist, but......no.

Why just a month ago my stock Commando was easily running in the mid 9 second quarter mile.

With the SAME gearing, I was easily pulling, at will, top speeds in excess of 135mph.

I was laughing hysterically to myself as I taught those elites lesson after lesson.

When they release me, I am going to hook up the other spark plug and blow them away.

And that's just showing them what a Commando will do in a straight line.

They got no idea how well my bike will out handle any modern in the twists.

Especially poor handling, compared to my Commando, are Ducatis. They are Corner Cripples.

Everyone knows that.

Can't be true, cuz there ain't no straight lines in the Ozarks!!

this actually works great with what was running through my head today. Forced induction, in the form of a turbo, not a supercharger. With modern turbo technology, and the various engine modifications, is there a limit to what the norton can make on power before other items start seeing their limit?

HeeHee, I have one of those Honda CBR 1000RRs, a 2008 model. I remain intimidated. Still haven't mastered her.

Three mods - 1 tooth shorter on the countershaft, clip the TPS (throttle position sensor) output at .4 volt, and install a quick turn throttle. The ECU retards ignition when the TPS shows .5 volt; the TPS begins throwing .5 volt at 3/4 open throttle and above; clipping the output unleashes the beast. The bike stock is geared for 185 or 200 MPH, I forget which. Drop a tooth, no big deal, I ran out of courage at 165 MPH. I noticed that I was re-gripping to get to wide open throttle, the quick turn fixed that. Each of those three mods made huge "seat of the pants" improvements. She's quick and fast. In 3rd and 4th, I have to pull my weight forward to hold the front end down, and then the rear wheel spins.

Vulin said:

this actually works great with what was running through my head today. Forced induction, in the form of a turbo, not a supercharger. With modern turbo technology, and the various engine modifications, is there a limit to what the norton can make on power before other items start seeing their limit?

Click to expand...

Joe Smith set a class record at 161.093 mph at El Mirage dry lake on his turbocharged 850 Commando in 1999. I saw the bike at El Mirage in 2001, just before he crashed it and died in an after-meet run down the lake bed. It wasn't highly modified, just stripped down for racing.

Still, I think you'd likely have overheating problems trying to make it work in a street bike.

Ken

No sir Ree Bob, not a living soul considers them modern sports and race bikes as corner cripples, but me on my obsolete rubber baby buggy > when turning means leaning 45 degrees or more. Humpf, you just don't even know my state of awe, so much so I feel Ms Peel may be the only thing that might really contest the coming fully robotic motorcycles, because they know how to use straight steering phase 3 handling. I have not yet seen a single example of sports bikes able to transition to that, except to see it fast decay to tank slapper - even with their beloved steering dampers, poor dangerous things. So far I have not seen robo bikes able or willing to add more energy to transition into phase 4, but they demo entering phase 5 handling, by ability to stay on power, while fully upright, going length wise/sideways, on 45 degree slope, on loose grass and Gravel, while nullifying drifting down by straight steering. YIKES!! You'all are keeping current with what's possible on 2 tires aren't ya?
But this is a pure standing start bee line blast post not cornering.


Noted I'm pleased and impressed by bike and sprinters able to spin rear just floating front. Its what I hope to attain, but may not have enough tire patch to pull like a fat tire full upright. Then again Peel's mass to tire patch size might not be too far off them flashy moderns. Mystery fun to find out.

Here's a bit of lore I stumbled on here. It also contains a note on a loved racer dying in freaked out state shutting down after a low 10 sec run. Its the first online reference I've found that agrees with what I was told my ole P!! did.

Sadly Dave was killed shutting down from a 10.44 blast at Blyton during the 1991 George Brown Memorial Sprint.

Click to expand...

http://www.thefang.co.uk/parallel.htm

I remember attending the World Records meeting at Elvington in the 70's when a team from Norton Villiers ran a Commando production racer. Over the 1/4 mile it ran a very low 11, and with raised gearing 143 mph in the flying 1/4. Stunning stuff, especially as these were the averages of runs in opposite directions.

Click to expand...

Here's site with idea of what skinny tire can take shoving forward.
http://www.jockeyjournal.com/forum/show ... php?t=8921


We don't last long so I'm not wasting time on bickering, just putting my money down for a trill of a life time.

I doubt it. At least not with a normally aspirated, single engine, pushrod motorcycle.

Back in 1999 I bought a new Suzuki GSX-1300R Hayabusa. It was the last of the speed unlimited bikes. I don't remember the exact time, but it just broke the 10 second time by a couple of hundredths at Speedworld Dagstrip in Bithlo Florida. When you consider that that motorcycle had 175 horsepower, a very wide rear tire, weight focused forward and a very rigid frame to transfer torque to the ground, the prospect of doing so with something like a Commando seems very doubtful.

I'm confident someone will prove me wrong though.

Thanks for the exciting reality check Steve. Takes a lot to break below 10 sec. and everything must work and be done right.
Peel has 920 torquer + Drouin that may just spin going no where fast : (
Guesstimates/calculators imply a favorable power to weight ratio to beat 10 sec. i've had two Commando owners tell me they hunted down hot shots and mostly won by dropping clutch in 4th and just hanging on to WOT. Both lost bikes contesting on THE Gravel here, one against ATV the other a MX bike. One was a righteous molded, extended fork chopper! They detailed the big money items to hop up engines too.

Will drop front and rear 1 to 2" below factory stance for pure drag tests, don't know what that'll be worth. Will be able to keep rear tire sorta soft d/t the 360' bead clamp. Then again I've folded up a rear inflated upper 20's PSI, a few 10'ths sec after '99 avatar photo popped vertical then thrown by engine power and tire/frame rebound onto R knee to leave it hanging by hide only. Could kick myself in nose or touch my R shoulder with foot, type bone/joint memory impression about sprinting hazards.

Basic parameters imply 120+ rwhp and 500-ish total weight is just enough, if hooked up.

Youse guys, why do you bother reading all the text written by everyone, THE TITLE IS WHAT IS IMPORTANT and in this respect, it is correct, ALL Nortons will do the quarter mile in OVER 9.99 seconds.

Jean

Jeandr said:

Youse guys, why do you bother reading all the text written by everyone, THE TITLE IS WHAT IS IMPORTANT and in this respect, it is correct, ALL Nortons will do the quarter mile in OVER 9.99 seconds.

Jean

Click to expand...

Now that's funny.

My Norton will do the quarter in >9.99 seconds, granted I would have to push it right now, but it would do it. The title should be <9.99 second ET

All I know is mine won’t do under 10 seconds if you DROPPED it from a quarter mile up.

And one other thing. There is no motorcycle anywhere on this earth that will ever propel MY BODY a quarter mile in under 10 seconds. Not without leaving a long brown trail making the track unusable for days.

Re: < 9.99 second ET?

Duh, Subject line ends with a ? mark. I've already experienced below 11 sec on P!!. There's evidence that enough power on ~4" wide tire can break into low 10 sec. I don't think tire traction after 2nd will be limiting factor as much as the power/drag. Study up on tire patch area and mass vs inflation to see there ain't a whole lot of difference on the ground betwix 130 tire or 300. Unless of course a pure flat drag slick i don't want use. Most reason I can find for fat tires is to take more heat loads and spread wear over bigger area, sure ain't better corner grip by better profile. Yet to confuse more, Peel had too much traction in severe leans and tights to barely have power to break free in time. Best I can determine I'd prefer more power to get loose and free rather than by less traction for similar states. Still don't know what street only tires feel like on Peel, just heated 150 to 180 race only tires on moderns that suck leaned big time to me.

Obviously by the strong reactions, a < 9.99 sec Commando will be very upsetting to world at large. Maybe me too. I only think I want to seek this, as I sure relate to being too intimidated/scared/incompetent to handle such power loads. Think it tests strangers to contemplate, I often quiver I'm building a death trap. Yet every time I hit THE Grit, [nick name for my real Master] I've always got more instant power than traction. Butt steering though locked arms/shoulders is too routine but can't avoid it as if I'm not always already set up for it > SPLAT. There are lots of tales of drag and road racers about to crash but NAIL it to save their bacon. I've got that reflex forced in over all others - plus R palm on FIRE reflex to steer first rather than touch brake.

Total non issue if anyone cares to add serious feed back on just spoofs, what's it matter in the end. But boy howdy I want to feel Rebel Yells being squeezed out involuntary in glee, instead of routine freak outs over so fast I don't know if I should be upset or nonchalant carrying on as if I didn't just luck out alive, again.

Can't be true, cuz there ain't no straight lines in the Ozarks!!

Click to expand...

Hehe, not so much lack of straights, shoot to Ms Peel there's several in every turn besides between them, its more that any level area here has a roof on it

Peel's fundamental mystery is if her cornering capacity is enough to nullify the drag capacity of elites. They may be corner cripples going into turns but they do excel coming out of turns once past 45 degree lean. You know which way I'm putting my money down on the bet. UGH so does my S.O. : (

<, > sheds a little light on the 160 mph.

Re: < 9.99 second ET?

hobot said:

But boy howdy I want to feel Rebel Yells being squeezed out involuntary in glee, instead of routine freak outs over so fast I don't know if I should be upset or nonchalant carrying on as if I didn't just luck out alive, again. (

Click to expand...

OK... I get it know... REBEL YELL!!!!! Too bad it is early in CA, to start having some, I will have tried a 9 sec pass @165mph!!!!
Philippe

What light? Seasoned racers tell me what they've experienced on top end that nudges if not exceeds 150. Close enough Peel power should deliver 160 and then some. But 160 is just pie in the ski ho hum to Peel if it takes more than 15 sec to get there. I've had my idea of speed shifted a few times, not all that d/t Peel's past performance. The seller told of going 120 mph and I quivered asked where he could do that, told 20 mile N in MO where the hyw's run bee line boring.

Accidental Peel power gave 120+ about anywhere not in a turn and became routine to touch any time I could see no cops, deer or traffic in the way. Then had a rev up contest with Hyabursa the lived on my way to work. Spotted him 4000, Peel 2000, him varrooMMMM to get 5000 more to 13,000, Peel BLAPP, 5000+ as tach swang past red before I could reach WOT. Guess how Peel felt-sounded in tin shed for about 4 seconds of stuck WOT. Anywho he was selling it because it tempted him to hit 160+ so often, my eye's widened to ask WTF he could find to go that quick, he just waved at the short straight with two steep crests in front of his home, Right here! Oh my gawd. But that's what I seek now - I think. If ya snap some big 4 inlines below 3-4000 they just bog, at least the 5-6 years ago versions. I like buzz saws to cut fire wood not carry me into Heaven's clouds on a Commando.