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So for us G11 owners...

Birch

Tuned and Synch'ed
Joined
Jul 26, 2013
Messages
51
Location
Chicago
With a remap and new pipe/airbox, how much of an improvement are we talking here performance wise?

Kicking around a few ideas, but love my G11 so much that I'd rather improve on her then start new.

Thanks!
 
My 07 Griso 1100 has a pipe (collector back), open airbox lid and filter, ecu reflash, and PCV, from Todd. I also put a valve on the stepper motor to allow me to turn it off. It runs a good bit better than stock, probably between 5 and 10 hp better, although I have only seat of the pants to go by. I did get it dyno'd after, but not before. The biggest improvement, though, is in throttle response. It feels like it runs much better than it did stock. The valve on the stepper give the throttle a slightly better connection, especially in regard to closing the throttle. With the valve off when I close the throttle it closes. With the valve on, when you close the throttle it is more like you requested the throttle to be closed. But by opening the stepper valve it makes it feel like the throttle is not actually closed.

That said, I am trying to get some serious work done to it, with the hopes of closer to 100 hp. Whether or not that all pans out remains to be seen.
 
One "Idea" I've been contemplating for my Griso 1100 in a few years is rather than modifications to gain horsepower and all the associated problems why not just loose weight?

Now I am pushing myself to drop that extra 30 lbs but for the bike Ghezzi-brian has some nice forged wheels at about $2,000 which drop rotating mass.

The old rule of thumb for bicycle racing was a pound on the wheel is about 5 lbs on your back.

Don't ask me how much two good sets of mountain bike racing wheels cost when my youngest was racing. One for each X-Country racing bike.

The G11 forum figured the weight savings at 10+ lbs of rotating mass. It also would take mass from the unsprung suspension.
 
I've heard a 7 pound drop is about equal to a gain of one HP. For the expense in weight loss, do you really think you will get a result you can notice?
 
Here's carbon wheels on a Bellagio: https://www.guzzitech.com/forums/threads/re-bellagio-mods.7625/page-5

I'm not so brave or rich man, I'd go with the forged.

A little less than half a century ago I put fancy wheels on a 10 spd bike. The bike originally came with regular wheels and I fitted this obscure thing called a sew-up. Even though the sew-up had 3 piece steel hubs and heavy galvanized spokes the bike would jump with every power stroke. No heavy flywheel effect just a surge each stroke.

Rotating mass is different than my chubby self. It's something that John Britten realized two decades ago when he made his carbon wheels at home.
 
Birch, I too reckon I might keep my 1100 rather than sell it and buy a new 2015 red / black jobby, which couldn't happen for a year or so anyway. In the meantime....I like how my bike goes..My bike has had 2 aftermarket maps in him . The full box and dice Power Commander setup and the Guzzidiag set up. Some folk reckon Rexxer stuff goes alright ,I dunno I haven't tried it. I have tried a couple of inlet mods, and as I suspected all along the designers know more about this than me. I have the standard air box and lid sans snorkel and an Agostini 2 into 1 and reverse cone muffler and am pleased with the way it compliments the donk . The valve seats on my bike left much to be desired, a clean up reaped good rewards . I am waiting on the return of a pair of throttle bodies from a mob that will make them as good as new, and just recently I put brass throttle rod ends on him and was pleasantly surprised with that.
How fast do you want to go and how deep are your pockets. ? Anyhow in my opinion the 1100 is a bloody good thing and can be made a whole lot sweeter without spendin squillions. Suspension and diet is the go. Look far and wide, plan it alk and post back with pictures.
 
Now I am pushing myself to drop that extra 30 lbs but for the bike Ghezzi-brian has some nice forged wheels at about $2,000 which drop rotating mass.

Have you got serious info on these wheels and are they for CARC models?

With my carbon wheels I saved 4.5kg on the front wheel and 4.2kg on the rear (19lb in total). That's from the stock Bellagio spoked wheels.
Lithium battery saved 4kg and full custom exhaust saved heaps more (can't remember, 8kg?), plus lighter bars, billet Matris R shock, slightly smaller tank and removal of a few excess bits. Full wet weight is 200kg (440lb), stock is 237kg. I could have saved more rotating mass with 500g lighter front discs and 300g off my rear axle/hubs. Desktop

The real bonus is with the lighter wheels, I kid you not as I have tested this back to back against my mates Triumph 675 Street Triple R. Fitted with SC Project pipes and Wilbers top line shock. The little Triumph has the edge with better front end feel due to weight bias (Bella has a 97/103kg front/rear split). But as far as flickability & turn-in is concerned, both bikes are on an even par. When you consider wheel base and geometry differences between the two, the results are astonishing. Several Griso owners have ridden Bella and can confirm.

Had 76RWHP before the wheels, haven't tested since. Front carbon flywheel is unquantifiable as far as HP gains are concerned, but could be calculated off improvement with the rear wheel. But my mods have nothing to do with numbers, it's all about the rideability and feel.

Am I happy? Shit yeah!
 
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This all has been great stuff!

I've done a lot of bike racing (road/tri) and understand rotating mass. I didn't even know wheels were an option.

I use my bike for light touring, so I have the HB racks and junior bags, do I'm putting myself in the hole already.

Also never thought about an old school port/polish either. Probably more effort than it's worth.

Was mainly thinking air/map/pipe combo. Then again, would you really notice a 10hp bump?

Thanks everyone!
 
One of the great things about Guzzi's is they come from the factory in a low state of tune. There is so much more room for improvement, and at a much lower cost compared to most other brands. A 10 hp increase in a motor that only has 80 or so at the rear wheel is a pretty big improvement. If you can't feel that you are not twisting the throttle hard enough.
Pipe/map/filter is a good place to start, as I mentioned that is what mine has so far. But they also should respond well to a basic port/polish along with further improvements to the fueling, as well as setting squish and other basic hot rodding tricks. A lighter flywheel is also something I want to do. We will see how it goes.
 
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