my xs1100 got beat

[caferacer]

my brother got a stock 1983 cb 1000 custom it is stock with the 5 low/5 high shifter and he beat me bad 3 runs in a row it is this normal my bike is no trailer quein but he walked all over me 3 times its hard to swallow dos eneyone know eneything about this bike can i beet him??????

[knewsom]

tell us about your bike a bit - is it stock? what kinda race are we talkin? 400 M?

[caferacer]

no its had about 150lb choped off of it it was a full dress bike pics of it are posted under [my 80 xs1100] it is light with 4 into 1 jarden exhaust low prow back tier open filters 125 jets it is fast but i did not think a stock 1000 honda would beat me in the querter mile like that

[caferacer]

this is it

[Pat Kelly]

Is there a difference in experience drag racing? Was this at a track or on the street? Has he had this bike long? Have you been riding this bike long?
Lots of things that can make a difference, experience is one of them. Someone good at roadracing might not know how to launch efficiently from a standing start. A dragracer may be scared to corner hard enough to scrape the pegs.
I'll bet your bike 150 lbs lighter is still heavier than his bike. Some modifications (like loud exhaust) can make the bike seem faster when it is actually slower.
If he's running in his 'low' range then he'd be quicker than a fart in an elevator. Stretch it out to a half mile and I'll bet you beat him every time.

[knewsom]

hmmm, I wouldn't think a stock 1k honda would beat you either...

however, I've been told that the 4 into 1 exhaust can actually reduce your HP... The other thing is that as nice as a drive shaft is for everyday riding, it does take some horses off due to the added friction, so there's another consideration.

If you wanted to beat him super badly, I suppose you could always rig a chain drive, get the big-bore kit, and put in EFI with a turbocharger... then pretty much NOBODY is gonna beat you.

..OR if you just wanted that extra ounce of acceleration in the 1/4 mi, try putting on an XS11 special rear wheel, slightly smaller in diameter, might help with the accel.

[Dennyz]

Things I noticed:

- that Jardine muffler is not helping make power. You need a low resitriction can muffler with 2" header pipe.

- 125 mains are still a bit lean for individual filters and a 4:1.

Some suggestions:

- Find a set of '79-'78 carbs, it has been my experience they tune for power better.

- Swap out your cams with '78-'79 cams. Increased duration

- make sure valve adjustment is right on, and timing chain is adjusted.

- run synthetic lub in middle and final drive.

- practice your launch!!!!! The XS is a lot of metal to get going. The launch can make or break you.

You can beat that Honda

[caferacer]

we run on a old flat road that is marked for quarte mile passes my bike has beet v/max,600 ninja, 1100 maxim,1981 gs1000,and countles sportster he just got the honda the day we raced and i know my bike is fast and i have ben racing bikes for a long time there is just somthing about that cb1000

[strom]

Depends on the launch... and a bit of setup.
I've beat aprilia tuono, cbr600, cb1,.... but sometimes a friend on a fully dressed 81 goldwing 1100 almost walks away.
If I launch right, I cant put my legs up on the pegs for the first couple seconds.
As for CB1000... well.... you gonna have to do something a bit more drastic. I think a big bore, carb job and a nicely tuned gearbox should do it.... Mine takes about 1/2 a sec. to shift nicely. I wont play with clutchless shifting from 1st to 2nd, but from 2nd on, its a breeze (nicer shifting than with clutch), but I like my gearbox in a working state, so I dont practice it.
Take off:
rear seat
rear fender
front fender
mirror
blinkers
fairing
side covers
engine guards
hack it at the rear shocks
leave on the rev counter, take the rest off
take off the starter and install the kickstart
take out the battery and put in a scoot item
take off the rear brake
clean the cone air filters
definetly bigger jets (get someone with a dyno to tune your bike)
....thats the cheap stuff....
then theres turbo, nitro, air shifter, chain drive,....


OR


You can get yourself a cheap ZZR1100.... that thing builds up speed so fast you wont know it hit you... gets to 280 kmh before you know whats going on... and then slowly towards 300. Stock. Probbably 1/4 the price of busa.

[knewsom]

ACTUALLY....

Nitro isn't a bad idea, and isn't really too expensive. I bet you'd get a BIG charge outta that...

The other thing is you might try aftermarket coils, see if you can get a hotter spark, maybe that'd give you a little something extra?

Other things to think about doing: aftermarket clutch springs, and adding an extra clutch plate.

Also, how much bigger than your brother are you?

[79XS11F]

What are the published 1/4 mile times for your brothers bike? If it's just plane faster then 11 your going to have to get fancy to beat it. If both bikes are well matched in regard to published 1/4 mile times then it will come down to rider weight and skill, the lunch, the shifting, wind resistance etc. Sounds like you have already lightened up your bike a lot so now it's "tuning time" Get rid of that pipe it is a stock replacement and does not really offer much in the way a improved performance. Find a Kerker, RC racing or super trap. These 3 pipes were in the day the highest added performance pipes you could put on these bikes. Upgrade the coils as was pointed out. You running good tires for this sort of use? tires don't have to actually break loose to be eating up horse power and speed.
Rob

[MAXIMAN]

Something isn't adding up here. If Dan Hodges will chime in here he has THUMPED CB1000s numerous times with his stock Eleven years ago. His riding friend Lee bought a CB1000 thinking he could keep up with Atilla. Hehehheheheh..HAHAHAHAHAHA!!! (Evil Laff)

Of course Atilla is nowhere near stocknow but when it was the CB1000 was no match for his 81' SH.

How many miles does your Eleven have on it? have you checked compression recently?

You say you beat a V-Max? Was he pulling a 5th wheel camper or were two of his plug wires disconnected? ...No...I'm serious.

[caferacer]

the compresion is great on my xs 1100 everything is tuned in good and as fare as the v max it is my old bike if you run out of the querter it is fast but off of the line threw querter mile it is not as fast as you might think my xs has air shft that helps in 2nd and 3rd i never hit 4th on querter miel the onley problem is when hard shifting my xs will pull up alot so for the vmax fans i am sorry they are not the super bike most peopl brag about

[pggg]

Cafe if your XS isn't near redline in 4th crossing the line, then there's something wrong

[caferacer]

do you think it is how im shifting or am i just not feeding it enouph gas i am open for sugestions