DYNO GALLERY

[Guz]

For the sound impression off the Quat D exhaust see http://nl.youtube.com/watch?v=_ihtTNl2O8M

[dlaing]

Today I got to ride a LeMans Rosso Corsa with the newer QuatD ExBox (right side exit), freshly dyno-tuned.

Very nice. Certainly more all around power than my earlier Quat-D, and less metallic sounding.

Still, I think it would sound better in stereo

[mille108]

 

 

The one on top is a run of my 1993 Daytona,with K&N,mistral can's and crossover.

When my carb conversion is finished we will do another one to see if we did a good job with the exhaust and carb's

You can see the bike and progress here in this topic.

 

Daytona special

 

The run below it is from my modified '04 RSV track bike,its done on the same dyno so its a good way to see the progress in 11 years.

They both are 8v 1000cc fuel injected twins...

If you check the RSV at 8000rpm you can see its already doing 120hp 110nm compared to the Daytona 95hp 95nm

 

Also i have a run from my MV Agusta F4 750 on the same dyno here..if you compare that to the twins then its obvious why fours are just annoying..

 

[dlaing]

Fascinating!

I'd like to see how your Daytona compares to the new Guzzi Quatrovalvoles.

Here is an overlay of your Daytona and your Mille.

[mille108]

The mille is in a higher state of tune than the guzzi butt still its interesting to see the difference.

They told me that the new guzzi 8 valves are a bit more high revving then the old one,not as much low down torque.

My Daytona runs sweet above 5000rpm below that number there is not much happening.

[Admin Jaap]

Accidentally found my dynochart from HdeB that was made April 2007.

He flashed my ECU. The torque dip is due to compensating for leaking inlet rubbers which we didn't notice at the time. If I find time I will have this corrected

 

Mods: K&N pods, Stucchi X-over, Guzzi Ti exhaust with Db killers.

Bike: 02 V11 LM

[universo]

hello

my LM3 with 1040cc

peter

[dlaing]

hello

my LM3 with 1040cc

peter

Those are huge numbers.

What are the modifications?

[Anders]

Here is what i have done to my 1100sport inj. from -97.

I started off with BOS 2-1 exhaust with a bad chip.

http://i38.photobucket.com/albums/e141/And...portchip2-1.jpg

 

It would stall on idle very easiely and frequently but gave nice acceleration.

Then i tried the Stucchi xoverpipe, Mistral silencers and pcIII custommap(done on another dyno )

http://i38.photobucket.com/albums/e141/And...ersdocument.jpg

It felt kind of lame compared to the BOS 2-1 and all i had done to the intake was a K&N filter in the box.

 

Then to the latest set up:

Staintune exhaust(Header&collectorset),Mistral silencers,Airbox lid modified according to Phil A ,stock airfilter and a new custommap at the same place as the first one with the BOS exhaust.With the Staintune exhaust alone the gains from 3000rpm-5500rpm were huge ,and massive throttlerespons.With the airbox mods ontop of that there wasn't so much more gains in that area but now it continued from3000rpm-6500rpm.The torque is never under 84 Nm and the top is 87,9 Nm.I can just twist the throttle at any rev range and it pulls strong enough for me.

I am really happy with this set up and the sound is kind of soft really bassy and kind of loud,but not too much.The airbox lid mod made the sound a little bit louder but in a mellow way,i don't know the word ,but definitly not an agressive sound.(pictures below of exhaust and airbox lid.)

http://i38.photobucket.com/albums/e141/AndersO/guzzi1100.jpg

 

In my opinion the Staintune exhaust is the perfect mix between Stucchi and Mistral xover .Mistral gives more at 3-5000 than Stucchi but then fades and Stucchi has more above 5000 rpm and Staintune has gains in both areas.This one is from Dough Lofgrens page comparing Stucchi and Mistral:

http://i38.photobucket.com/albums/e141/AndersO/more_m1.gif

 

Here are pictures of the exhaust and airbox lid:

http://i38.photobucket.com/albums/e141/AndersO/P1000528.jpg

http://i38.photobucket.com/albums/e141/AndersO/P1000531.jpg

Perhaps a way to go if you have an 1100 sport or Daytona.And i want to thank Phil A for the airbox lid research.It works perfectly!!

Anders

[dlaing]

In my opinion the Staintune exhaust is the perfect mix between Stucchi and Mistral xover .Mistral gives more at 3-5000 than Stucchi but then fades and Stucchi has more above 5000 rpm and Staintune has gains in both areas.This one is from Dough Lofgrens page comparing Stucchi and Mistral:

http://i38.photobucket.com/albums/e141/AndersO/more_m1.gif

But you were using a different Stucchi and Mistral than what Doug Lofgren tested.

Lofgren tested the crossovers for the V11Sport

V11 Stucchi

 

You are using the crossovers for the V1100Sporti, right?

V1100 Stucchi

 

Images from http://www.mgcycle.com/exhaust.html

[Anders]

But you were using a different Stucchi and Mistral than what Doug Lofgren tested.

Lofgren tested the crossovers for the V11Sport

V11 Stucchi

 

You are using the crossovers for the V1100Sporti, right?

V1100 Stucchi

 

Images from http://www.mgcycle.com/exhaust.html

Yes,but my point was that i think the inner diameter is making the difference,not so much the shape of it.

Mistral is thinner than the headers and much thinner than the pipes connecting to the mufflers.The Stucchi is the same thickness as the headers.

The Staintune system is thinner than stock all the way but bigger than Mistral's xover.That probarbly keeps the speed of the exhaustpulses up all through the system.That's my theory anyway.

Anders

[dlaing]

Yah, that makes sense.

I never noticed the Mistral had less inner diameter.

http://www.mgcycle.com/MG10011-S.JPG

I always figured that there was less crossover action in the Mistral, so it functioned more like two separate exhausts.

But the diameter certainly comes into play and to my understanding would affect as you observed.

Interestingly, the FBF crossover seems to have the widest diameter.

https://ssl026.lighthousehosting.com/Ferrac...ts/22_large.jpg

Although it is known for cracking issues, it may allow the highest peak HP.

[Slavomir Musilek (R.I.P.)]

hello

my LM3 with 1040cc

peter

 

 

Really Impressive numbers!

[Anders]

Yah, that makes sense.

I never noticed the Mistral had less inner diameter.

http://www.mgcycle.com/MG10011-S.JPG

I always figured that there was less crossover action in the Mistral, so it functioned more like two separate exhausts.

But the diameter certainly comes into play and to my understanding would affect as you observed.

Interestingly, the FBF crossover seems to have the widest diameter.

https://ssl026.lighthousehosting.com/Ferrac...ts/22_large.jpg

Although it is known for cracking issues, it may allow the highest peak HP.

Well,the truth is ,i always thought the v11style/Termignoni/BOS style xover were more effective than the 1100sport xover,that's part of the reason why i decided to try Staintune.The Staintune xover is designed with a very long piece joining the 2 pipes together ,making it possible to have a bigger hole that the 2 pipes(cylinders) can use.It looks exactly like the Mistral xover for 1100sport but it is turned over to the v11 style.So that design probarbly helps preformance too and not just the thickness.Anyway i think Staintune is a great combination and very much spot on.

 

On different ID from headers to mufflerpipes.I think the reason why a stock v11 compared to a stock 1100sport has less torque at the 4000rpm area and has a big torque hump at 5000,is because the v11 exhaust goes from 42 mm ID and the muffler pipes are going into 50mm OD.

The 1100sport system is 42mm ID all the way.But that is more or less evened out when they both have a more open xover.So i think different ID on a systems different parts doesn't matter that much,but it makes differences,especially if the pipes become thinner in the middle ,like it does with a Mistral xover.

Anders

[dlaing]

I bet the V11 stock crossover could be improved by reducing the crossover effect.

Something that shapes the flow like this |X| rather than a simple expansion chamber.

If we could open the Staintune to see the size of the crossover hole, we could probably learn how to do it right.