Crossover

[Guest Brian]

Hello.

 

First I shall introduce myself. I am Brian, driving a Coppa Italia here in the Netherlands.

Pretty forum here and a lot of information which is usefull. Thank you for that.

 

Now I want to buy a new crossover, I have open Gianelli pipes. Is the Mistrall crossover a good one because there are only 3 small holes which are "communicating" between left and right. There are also crossovers which are more open between left and right.

 

I would like to have the "open" sound but no loss of power and torque.

 

I hope to here your comments on this matter.

 

Thanx a lot.

 

Brian

[Guest Dru]

Hi Brian:

 

I have the Stucci crossover with my stock pipes, and it makes the bike sound way more "open". I'd like to get new cans and a PC3 in the spring, to get all I can out of the bike... Where did you get the Giannellis? The website is wierd.

 

DRU

[Guest Brian]

The Gianelli's where allready on the bike when I bought it. But it seems very easy to buy them here in the Netherlands or Germany.

If needed I can give you adresses.

[Richard]

I have mistral straight-through pipes, stucchi crossover and PCIII usb. It sounds great and goes even better - it's off to the dyno this w/e, so I can give you a better idea after that as to performance. It seems the general consensus seems to be that the stucchi crossover is better than the mistral.

[DeBenGuzzi]

I had wanted Gianelli's but also had a lot of trouble with their site. I went for FBF, similar yet not quite as good(tad cheapa tho)

I wonder what happened to the MG Ti's it came with.

[Guest Dru]

The Gianelli's where allready on the bike when I bought it. But it seems very easy to buy them here in the Netherlands or Germany.

If needed I can give you adresses.

 

Hey Brian:

 

I'd love to have the adresses you mention... PM me!

 

Thanks

DRU

[Admin Jaap]

Hoi Brian,

 

Welkom bij de V11 rijders. Check even de FAQ voor dit onderwerp. Heel veel nuttig links.

 

Pardon my French...

[Guest Brian]

Heel behulpzaam Jaap. We gaan voor de Stucchi.....

[antonio carroccio]

To make it simple!!!

Stucchi=Speed

Mistral=Torque

 

What do we need on the V11???

Speed or torque?

[mdude]

To make it simple!!!

Stucchi=Speed

Mistral=Torque

 

What do we need on the V11???

Speed or torque?

 

 

I am a torque-addict, so I've got the Mistral with the Ti-pipes.

Its good, loads of torque from as low as 1800-3800, but a definite loss of vigour from 4200 upwards.

it takes off again at 5000+, but the stock exhaust were actually a lot more impressive at the top end (still: standard exhaust suck massively in the midrange.)

the sound is deep but muted, nearly stock at tickover but with thumping bass and a nice snarl when you give it some from 3000.

its what you use most that decides, full tilt all the time or mostly midrange roll ons.

[Paul Minnaert]

to extend confusion: there might be a difference in how it work out with the newer engine with front crossover or the old one without. The dyno results are from a bike without.

[Guest rosso mandello]

Sorry folks, on my Rosso Mandello (without the crosover pipe in front as on the later models) it cost me 10 HP to go Mistral x-over.

I tweaked it and cut off the mid section, welded it back together with one open chamber, and now I got the power I need, 85,3 HP on the wheel.

 

Think of that, i go for the power

 

ciao Mogens.

[luhbo]

....

I tweaked it and cut off the mid section, welded it back together with one open chamber, and now I got the power I need,....

 

 

You tweaked the X-over, not the front cross over, right? Do you know something about how it works without that front connector?

 

Thanks

 

Hubert

[Guzzirider]

The Stucchi makes no difference to power and torque on a later bike with front crossover. It is also heavier than stock.

 

It does look a whole lot better though.

 

I am also interested in finding out where to buy Gianellis!!

 

Guy

[Guest ratchethack]

Gents! The Manley/Lofgren dyno comparos here: http://www.visi.com/~moperfserv/more_mg.htm tell a pretty convincing story. If you read what they've done and look around the site, the Agostini/Mistral X-over results were a great disappointment on the top end. The last graph on this page is the reason I went with the Stucchi on a non-front-crossover Guzzi, my 2000 Sport. It made a noticeable difference via the seat-o-the-pants dyno in the mid-range, for the most part eliminating the stock dip in the torque curve at 4500 RPM. The Stucchi is considerably less weight than the stock box X-over.