Boss Noss XS1100??

[The Lorax]

Good to know, I'll look elsewhere for the raw materials when I get around to playing with it. would a fuel injection be better to have with a turbo? Just a thought, if one is cramming extra air into the beast, would it not be better to have a closed control loop running the fuel delivery to the engine to ensure proper mixture and optimal combustion within the chamber? ah more to consider. have a nice day and ride safe

[fredintoon]

Hi Lorax,
you say:- "if I ever get into a wreck of that magnitude, the good lord has given me a small insurance policy that will prevent me from surviving. You see, I have a congenital bleeding disorder, which in a nutshell means that even a small wreck will very likely kill me. "
So your worst case scenario is that modern medicine will somehow save you for a long post-collision life of incontinence, immobility and suffering?
But what you are doing is taking an XS11 which leaves the factory with far more horsepower than it's brakes & handling can cope with and giving it even more power. Better you devote your mechanical genius to improving the XS11's dodgy brakes, flexy forks and twitchy rear so it can better cope with it's existing power. OK, it's true that your max. speed will not improve by so doing but your sustainable average speed will go WAY up.

[The Lorax]

Touche, much like those fellows who put 26" rims on their SUVs without upgrading the brakes. it is a bad scene waiting to happen. I would like to find a way to put a modern set of inverted forks (with the associated modern brakes) on my XS, well before I begin playing with making it mucho speedier. and yes, it might be more feasible and easier to find a more modern "canvass" to paint on but I like my XS and would like to make it better in every respect. that and the XS is paid for and if I bugger it up, I can likely fix it (providing I don't bugger it up too badly). no hurries, just try stuff as I get around to it and see what works and what doesn't. as I said earlier, I am a good bit away from implementing any kind of significant performance modifications, but it is fun to theorize and come up with ideas for bettering my favorite toy. until I come up with something really good, I'll probably tinker and ride. I like to make all modifications reversible in case they don't work out like I planned. I have considered trying to fabricate a new set of triple trees that will hold inverted forks. I am no machinist, but I can find my way around on a bridgeport. anyway, it's all good, I have lots of plans, not neccesarily the means to bring them to fruition, but I am patient, and if I get to thinking I'm about to get myself killed, I will change course (I may not neccesarily fear the beyond, but I'm in no hurry to see it). so fear not, I'll do my best not to do anything terribly stupid (not easy), and if and when I'm ready to make any serious performance mods to the machine, I will be starting by making it stop better, handle better then go faster. have a nice day and ride safe.

[xs11jack]

The Lorax, I think that the scaryest thing that could happen to you is that somehow you survived the crash but are confind to a women's Bicycle forever.

[The Lorax]

Sho nuff

[JustJeff]

Turbo or Bottle for an XS

In a stock bike as soon as you add the additional horsepower that you are talking about you will find week links one right after another.

First and second gear normally go first. Followed by the clutch basket, drive shaft and finally if your lucky enough to last that long the pistons and rods will be next.

By this time you are on your second or third set of cases.

I KNOW FIRST HAND!

Back in the 80s I bottled up an xs11 with a stock engine.

Horsepower costs money it is just a matter of how fast you can afford to go.

I have poured alot of money and time into my XS but facts are facts. Air cooled 30 year old bikes with 2-3x the power they were designed for will not take the beating that a modern bike will. I know what I am risking every time I twist the grip and watch the boost climb.

I doesn't matter like with a stock engine you make the payments one part at a time or if you build it to last (longer) and pay the cost up front.

In the end the price is the same.

[wa407mpp]

book

I was going through my motorcycle magazines last night and I found a short article in the Book Review section of the April 1998, Rider Magazine, about a book written by Jole Haile, it called Motorcycle turbocharging, supercharging & nitrous oxide, and it was published by Whitehorse Press, If any of you are really serious about trying this approach to more power you might want to get a copy, if it is still available.

[Dennyz]

I think Nitrous on an XS (mine to be specific) would be a blast. The XS is so over-built, I would bet that a mild juice setup would work fine. Particularly up here where the ambient temp is usually not very hot. I would only use it for that little kick at WOT. Probably kill myself. Imagine how exciting it wold be getting on the freeway.

[JustJeff]

It's a sickness

Horsepower is addictive. The more you have the more you want. The more you use it the more you want to use it.

It starts out "just wide open throttle on the on ramp"

It ends with allot of broken parts.

Not saying it's not fun, if it wasn't I wouldn't have spent all the time and money doing just what you are talking about doing.

Just keep in mind it is a slippery slope. Do what you will, and enjoy the slide.

[Paintman]

How much is to much

back when the GS1100e suzuki was around and powroll made thier 1432cc kits i thought i had a monster and at the time i did lOl but now with an 06 Bike making 168 Hp and me not being 19 and bullet proof anymore i think il keep my antique in one piece < but one always has to tinker its whats makes us old Bike folks keep breathing.
John

[JustJeff]

It's what I do

At my shop we do allot of performance work. We sponsor some road racers, MXers, drag racers and a whole slew of everyday riders that have the money to go fast.

Modern bikes are incredible. Because of my job, I ride fast stuff almost everyday. To get the kind of horsepower to weight you find in a turbo busa in a car, you need to look at something like an F1 race car.

It's like having your life stuck on "fast forward". It may be affecting the rotational force of the earth itself every time one of these things goes blasting down the road.

The difference is "Smoothness". Modern bikes are just that. They are also durable. Whoever it was that said the XS11 was "over built" is just wrong. In a modern bike you can get 350 BHP @ RWL and make it hold together. It can even be your daily driver.

Spend the money and you can be like every other guy out there. You will be rated on bare bones performance. But, YOU WILL HAVE NO SOUL!

That is what being different is all about. Riding a bike that has personality. The XS1100 has that hands down.

I do enjoy lighting up some street squid with his brand new R1 on my XS. I do know he'll beat me on the top end. But if you play it right, you can kick his butt and get out of it before he has a chance to kick yours. I also know he's not having the ride I am.

His bike will be in the yard long before mine. No one cares about a soulless heap of plastic and metal. People who ride those bikes will have moved on to the latest and greatest thing and forget where they came from.

[T99Ford]

Well said!!

We should remind ourselves about what we are really doing. If power and speed are your game, be prepared to pay for it. A large stock of knowlege helps, too. Keep in mind that any problems you have with your stock bike will be compounded by the additional hp. You will work on your bike twice as much as you ride it.
The modern engines have balance (ie can turn to 17,000 rpm) and modern materials on their side. That counts for alot in high performance.
The nail was hit on the head when it was stated that power and performance are a slippery slide. It is very addictive.
Here I would like to do a little reality check for everyone. If you are not a skilled mechanic, and thoroughly understand carbs, combustion, powertrain, cooling, fuel mixtures, etc... STOP modding your bike until you do. It will be costly and you could end up getting hurt. Learn about these things first so that you understand what you are doing. It may not necessarily save you money in the long term, but it will get you farther. NOSS is easy bolt on power. But if set up improperly, it will QUICKLY burn up your motor. I would hate to hear of anyone doing that out of lack of experience. If you want to mod your bike, research it, learn to do it properly, and benefit the whole sport by sharing your knowlege.

Just a word of caution to echo what was said above.

[JustJeff]

Sliding

On my turbo setup I am using a standard Harley flange Mikuni setup that bolts directly to the compressor side of the turbo. It is fed by a single HSR45mm carb.

That means I can directly bolt on just about any Harley NOS system designed to be used in non fuel injection applications.


I really wish I had some old Harley NOS system parts around. I really wish I could get wholesale pricing on the rest of the parts and a cheap source for nitrous.

OH WAIT!!!!!!!

I DO!!!!!

OH NO!!!!

Here I go again. Time to scatter some parts.

[T99Ford]

Just Jeff--

Check the sled shops for nitrous. I can get it around here for about $6-6.50 per lb. You won't need a big bottle for the bike. Are you saying that you have one carb for the entire bike on the compressor side of the turbo? I would be interested to know how yours is set up. Does Harley offer nitrous systems, or did you mean "new old stock"?

have a nice slide!!

[JustJeff]

Setup

No I don't think Harley themselves makes a setup for NOS. But it is very common after market.

I have done a half a dozen. Even your "BOSS NOS" company you referred to earlier makes one. I have in the shop somewhere most of an edelbrock system.

Edelbrock system

Yes I only have one carb. draw-through turbo setups only use one carb. Doing this avoids the problem of having to pressurize the float bowls and eliminates the need to regulate fuel pressure during boost just to pump fuel to the carbs.

I used a Mikuni HSR flat-slide because it is so tunable. I also had one. Actually I had 2. the 45mm was much better on the bottom end and made it very streetable.

As for price on nitrous... we sell it, and we sell race gas.

as for getting it cheap.. well, if you use enough to be concerned about price then you will have already broken it.

Speaking of breaking it. Just because you can doesn't mean you should. (Jurassic park movie?)

I know I can, I know I shouldn't.

Here I go sliding again... Hope it doesn't break on the Dyno.