749/999 Silencer.. need something lighter. Advice/opinions

[NuTTs]

Hi gang,

I'm in the middle of turning the 749 into something lighter, faster and well.. not a 749. Project is still top secret but, I've run into a slight problem. When we took the bike
apart I duly found that biposto subframe weighs a hell of a lot. Also, the silencer from my 54mm Termignoni exhaust weighs an absolute ton!! I thought this was a lightweight
performance exhaust!

Basically I want a can that will slip onto the header pipe and weigh as little as possible. The bike is purely for race and track days, no noise limits here in Spain (yet) but i don't want to go
over 103-104dB.

The header outlet is a single 57mm pipe that connects onto the silencer.

Any suggestions?

NuTTs

[Monstermash]

Suggestions?

Sure, I have a suggestion. Just do what I did and make a custom exhaust for it! 

[Chris,desmoworld]

Ciao Nutts,

you know this ?



available with/without baffles , so you can use on street or race track and make the sound needed 

sound without baffles :  

weight 3.5/4.0 kg

let me know if you need any information on this

Bye
Chris

[TAftonomos]

LOL, tease.

F04 seat, corse subframe, seat pan, seat pan bracket, and the unobtanium corse exhaust to go with it.

Don't forget you'll need a 104mm motor, lots of headwork, special rearsets and grind the engine casings to fit it.  That and about 5K if you find all the parts used.

[NuTTs]

Thanks for the replies folks.. i had a closer look at that end can.. the Y piece isn't welded in, it's just covered in shit and looks like it. I carefully wangled it out so now I'm looking for 2 x 50mm round or oval cans.. or a very lightweight square unit.. I'll take a look at the Zard, Spark and Quat D stuff after I've exhausted the round/oval route.

I'm going for this:


but I am doing so with a SSS...


Maybe.. just maybe I'll go this route..


This hobby is fukin expensive 

[TAftonomos]

LeoVince 7171 race system in Ti is about the lightest you can get for reasonable money $3200 ish.  Works well on 749r's, or 999s (or 05+ 999's), and the 104mm 999r as well.

[NuTTs]

LeoVince 7171 race system in Ti is about the lightest you can get for reasonable money $3200 ish.  Works well on 749r's, or 999s (or 05+ 999's), and the 104mm 999r as well.

Will the end can fit on my 54mm system?? I'll check it out. Thanks!

[Monstermash]

Now this bike I do not understand. It's a 2V air cooled motor with a radiator. WTF?

[Gus Duc]

Now this bike I do not understand. It's a 2V air cooled motor with a radiator. WTF?

That's no radiator...................it's a giant oil cooler...... that bike must be making some serious power & with power comes heat

[TAftonomos]

would be nice to have an oil fill hole that big 

[Gus Duc]

Is that bike #22 above an SBK with an S2R/S4R SSS



Me likey

[NuTTs]

That's no radiator...................it's a giant oil cooler...... that bike must be making some serious power & with power comes heat

The motor is a ST2 unit - 2V with water cooling, so yes that is a water radiator. In Spain a lot of the desmodue track bikes run ST2 engines. They are tough and reliable. Also a used ST2 costs peanuts to buy.

[NuTTs]

Is that bike #22 above an SBK with an S2R/S4R SSS



Me likey

Yep, spot on. The frame is a 999 style custom built unit that weighs in 30% less than a 999 frame, the SSS is a S2R unit. Motor is a ST3 engine kicking out a real 105hp. This bike weighs in wet at around 155-160kg. With all the CF bits and pieces on the bike it is a real flyer.

I'm hoping to have my Fränken-bike weigh in around 175kg wet if I calculated correctly. The toughest (read most expensive) part is going to be the wheels and the front forks. I've got a love for the Showa units that came with my 749 so ideally I'd like to use the same forks or maybe upgrade to some TiN coated GSXR units with radial mounted calipers.

[Monstermash]

The motor is a ST2 unit - 2V with water cooling, so yes that is a water radiator. In Spain a lot of the desmodue track bikes run ST2 engines. They are tough and reliable. Also a used ST2 costs peanuts to buy.

DUH! <hits himself in head with baseball bat>

I should have know that. I just wasn't thinking, per usual. 

[NuTTs]

DUH! <hits himself in head with baseball bat>

I should have know that. I just wasn't thinking, per usual. 

I guess it's not a normal config so I wouldn't have known either unless I knew the owners of Radical Ducati.