AccueilCalendrierGalerieFAQRechercherS'enregistrerConnexionNouveaux messages depuis dernière visite
Rechercher
 
 

Résultats par :
 
Rechercher Recherche avancée
Qui est en ligne ?
Il y a en tout 26 utilisateurs en ligne :: 9 Enregistrés, 0 Invisible et 17 Invités :: 2 Moteurs de recherche

Alshaad, cb1100r81, Dialmax, JAKOMOTO, Roby RDLC, Rémi B50, spyderman 32, woab, XS1100

Le record du nombre d'utilisateurs en ligne est de 187 le Lun 3 Déc 2012 - 6:45
Derniers sujets
» [WSBK Laguna seca 2018
Aujourd'hui à 4:04 par Philippe Debarle

» [Oldies] Jarno Saarinen, la star qui a révolutionné le pilotage... (Part 3)
Aujourd'hui à 3:36 par Dialmax

» [Sorties] AS Trelivan motos démonstration moto ancienne
Aujourd'hui à 3:11 par spyderman 32

» VMA Carole 2018
Aujourd'hui à 3:01 par spyderman 32

» [Technique] Moteurs MotoGP
Aujourd'hui à 2:31 par Dan42

»  [MotoGP] GP 2018 de Catalogne à Barcelone , les 15 , 16 et 17 Juin 2018
Aujourd'hui à 2:06 par Pasky

» [MotoGP] KTM
Aujourd'hui à 1:45 par fd-racing

» Moto Rétro Lapalisse 03
Aujourd'hui à 0:11 par Dialmax

»  [Promosport] Pau Arnos les 23 et 24 juin 2018
Hier à 23:44 par Mykeul

» [Oldies] Le mystère des antipodes, ces usines à champions bien trempés
Hier à 15:46 par philippe7

» Carbon, quand tu nous tiens !
Hier à 4:54 par Dialmax

» [2stroke] Ryger engine
Mer 20 Juin 2018 - 14:54 par fd-racing

» [Oldies] Mondial Supermono 560
Mer 20 Juin 2018 - 6:47 par Dave Pearce

» FSBK Lédenon
Mer 20 Juin 2018 - 3:41 par denis boulom

» [MotoGP] Jorge Lorenzo, pilote de course? Non, violoniste!
Mar 19 Juin 2018 - 13:06 par raspoutine

» [GP] Johann Zarco
Mar 19 Juin 2018 - 5:27 par biger

» KLASS GP250 DIJON
Mar 19 Juin 2018 - 1:57 par Emil'

» [GP] Chaises musicales ou resignature pour 2019.
Mar 19 Juin 2018 - 1:51 par EDOUARD Jean

» [GP] Fabio Quartararo
Lun 18 Juin 2018 - 23:57 par PLP

» [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 5)
Lun 18 Juin 2018 - 15:41 par JanBros

» [Oldies] Les Ducati mono 250 et 350 SC et leurs dérivées SCD
Dim 17 Juin 2018 - 12:20 par camathias

» [Oldies] C'était le bon temps...
Dim 17 Juin 2018 - 11:39 par perruche

» [SORTIES] Savigny lès-Beaunes
Dim 17 Juin 2018 - 10:29 par Fügner

» [Oldies] Recherche Honda 400 cb N
Sam 16 Juin 2018 - 15:13 par erwan#26

» [BSB] Snetterton / 17 juin
Sam 16 Juin 2018 - 11:24 par Philippe Debarle

» Rappel soupape Motogp
Sam 16 Juin 2018 - 3:46 par fd-racing

» [Road Racing] TT 2018
Ven 15 Juin 2018 - 14:45 par tim la casse

» [WSBK] 2019
Ven 15 Juin 2018 - 12:07 par Tonio

» [Apero 10 Ans] Pit-Lane IDF - 27/06
Ven 15 Juin 2018 - 10:15 par Rose Noire

» [Oldies] Side-Car: quelques images
Ven 15 Juin 2018 - 4:01 par EDOUARD Jean

La réclame...
Mots-clés
rouge HOnda geco aprilia side france norton classic 2013 coupe suzuki aermacchi ravel icgp yamaha eurosport 2018 wanted ROAD RACING triumph zone moto 1973 ducati fourche
Meilleurs posteurs
Marc
 
philwood
 
mickey
 
Pierre"PhilRead"
 
Jarno
 
Fügner
 
EDOUARD Jean
 
yves kerlo
 
janpol84
 
bubu
 
La réclame...

Partagez | 
 

 [2 Stroke] Cagiva Mito Racer-new Exhaust

Aller en bas 
Aller à la page : Précédent  1, 2, 3, 4  Suivant
AuteurMessage
koenich



Nombre de messages : 108
Localisation : Germany
Date d'inscription : 07/02/2012

MessageSujet: Re: [2 Stroke] Cagiva Mito Racer-new Exhaust   Lun 14 Jan 2013 - 0:35

{mRk} a écrit:
These are the images of Filandro:
[Vous devez être inscrit et connecté pour voir ce lien]

may I ask how you do those sketches of the bend exhaust? I am looking for a simple way since quite a while, but Catia seems to be too much effort without any Macros...
Revenir en haut Aller en bas
Filandro



Nombre de messages : 41
Localisation : Italia
Date d'inscription : 20/11/2012

MessageSujet: Re: [2 Stroke] Cagiva Mito Racer-new Exhaust   Lun 4 Fév 2013 - 10:27

After a long time, finally the parts are ready to weld:
[url=[Vous devez être inscrit et connecté pour voir ce lien]]
koenich:there is a simple rule to sketch a bent cone starting from a straight one, this the link to an old book :
[Vous devez être inscrit et connecté pour voir ce lien]
Give a look at page 6, hope this helps.
Revenir en haut Aller en bas
bobmat



Nombre de messages : 20
Localisation : italy
Date d'inscription : 24/01/2013

MessageSujet: Re: [2 Stroke] Cagiva Mito Racer-new Exhaust   Mar 5 Fév 2013 - 17:47

A very good work, Fil...
Revenir en haut Aller en bas
Muciek



Nombre de messages : 13
Age : 25
Localisation : Poland
Date d'inscription : 24/12/2012

MessageSujet: Re: [2 Stroke] Cagiva Mito Racer-new Exhaust   Mer 6 Fév 2013 - 4:23

Do you used a cone roller? I'm looking for a schematic of one but I can't find, I want to build myself a one.
Revenir en haut Aller en bas
http://motocdi.com
Filandro



Nombre de messages : 41
Localisation : Italia
Date d'inscription : 20/11/2012

MessageSujet: Re: [2 Stroke] Cagiva Mito Racer-new Exhaust   Mer 6 Fév 2013 - 5:26

Muciek a écrit:
Do you used a cone roller? I'm looking for a schematic of one but I can't find, I want to build myself a one.
No, simply bent the cones with hands, using a vice and some tubes of proper diameter.
Revenir en haut Aller en bas
pfpraider



Nombre de messages : 16
Localisation : bourne england
Date d'inscription : 25/11/2010

MessageSujet: : [2 Stroke] Cagiva Mito Racer-new Exhaust    Mer 6 Fév 2013 - 17:11

Filandro a écrit:
Muciek a écrit:
Do you used a cone roller? I'm looking for a schematic of one but I can't find, I want to build myself a one.
No, simply bent the cones with hands, using a vice and some tubes of proper diameter.

Hi If you look on UK ebay they sell them fairly cheap.
I made mine that I roll all of my exhausts, but that was 33years ago
Phil

[Vous devez être inscrit et connecté pour voir ce lien]
Revenir en haut Aller en bas
http://www.pfpservices.co.uk
Muciek



Nombre de messages : 13
Age : 25
Localisation : Poland
Date d'inscription : 24/12/2012

MessageSujet: Re: [2 Stroke] Cagiva Mito Racer-new Exhaust   Jeu 7 Fév 2013 - 2:37

I had rolled 3 diffusors by hand and I think it pain in the ass takes much time and not always it look like it should after. I have machines lathe, mill ect so I thought it would be easier to fabricate a roller then get it shipped from another country.
Revenir en haut Aller en bas
http://motocdi.com
koenich



Nombre de messages : 108
Localisation : Germany
Date d'inscription : 07/02/2012

MessageSujet: Re: [2 Stroke] Cagiva Mito Racer-new Exhaust   Jeu 7 Fév 2013 - 2:48

we also tried it by hand, but as you said - it's a pain in the ass and the outcome is not really round shaped.

what i did was to turn cones with different angles on the lathe out of wood (faster and cheaper than metal). around those you can easily lay the metal by hand and finally hammer it in the right form a bit.

with the usual roller you can only roll metal with same diameters on both ends - trying cones the result will be really bad. and to get massive cones for the roller will be quite a big effort.
Revenir en haut Aller en bas
pfpraider



Nombre de messages : 16
Localisation : bourne england
Date d'inscription : 25/11/2010

MessageSujet: mito exhaust   Jeu 7 Fév 2013 - 3:15

Muciek a écrit:
I had rolled 3 diffusors by hand and I think it pain in the ass takes much time and not always it look like it should after. I have machines lathe, mill ect so I thought it would be easier to fabricate a roller then get it shipped from another country.

Try this link and go down to weldtutor post
[Vous devez être inscrit et connecté pour voir ce lien]
Revenir en haut Aller en bas
http://www.pfpservices.co.uk
Muciek



Nombre de messages : 13
Age : 25
Localisation : Poland
Date d'inscription : 24/12/2012

MessageSujet: Re: [2 Stroke] Cagiva Mito Racer-new Exhaust   Jeu 7 Fév 2013 - 4:00

pfpraider a écrit:
Muciek a écrit:
I had rolled 3 diffusors by hand and I think it pain in the ass takes much time and not always it look like it should after. I have machines lathe, mill ect so I thought it would be easier to fabricate a roller then get it shipped from another country.

Try this link and go down to weldtutor post
[Vous devez être inscrit et connecté pour voir ce lien]

Oh Thanks pfpraider , I will try fabricate it when I will have some free time :) I used cone layout for fabricating cones really simple application.
Revenir en haut Aller en bas
http://motocdi.com
romeuh80



Nombre de messages : 102
Age : 28
Localisation : Leiria, Portugal
Date d'inscription : 14/10/2011

MessageSujet: Re: [2 Stroke] Cagiva Mito Racer-new Exhaust   Jeu 7 Mar 2013 - 16:40

Hi again. Nice cones.

I make them with big metal rods I have around home and a rubber hammer. And they look good.
Here is the ones for my second exhaust I produced in 2011

[Vous devez être inscrit et connecté pour voir cette image]

In this moment I am making a ram air box for my 125cc but then I will test tail pipe restrictions identical as the ones you showed.

I have about 21,5/22mm tail restrictor, but I will go to 20,5mm and may even try 20, as frits formula gives 20,3 for 45 horsepower :|

Do you have some results already?

Thanks

Revenir en haut Aller en bas
Frits Overmars

avatar

Nombre de messages : 2007
Age : 69
Localisation : Raalte, Holland
Date d'inscription : 12/10/2010

MessageSujet: Re: [2 Stroke] Cagiva Mito Racer-new Exhaust   Jeu 7 Mar 2013 - 16:56

romeuh80 a écrit:
I have about 21,5/22mm tail restrictor, but I will go to 20,5mm and may even try 20, as frits formula gives 20,3 for 45 horsepower
Attention, Romeuh: the formula is based on crankshaft horsepower. If you have 45 HP at the rear tire, that will be about 53 HP at the crankshaft and then the restrictor diameter should be at least 22,2 mm.
Revenir en haut Aller en bas
romeuh80



Nombre de messages : 102
Age : 28
Localisation : Leiria, Portugal
Date d'inscription : 14/10/2011

MessageSujet: Re: [2 Stroke] Cagiva Mito Racer-new Exhaust   Jeu 7 Mar 2013 - 17:15

Frits Overmars a écrit:
romeuh80 a écrit:
I have about 21,5/22mm tail restrictor, but I will go to 20,5mm and may even try 20, as frits formula gives 20,3 for 45 horsepower
Attention, Romeuh: the formula is based on crankshaft horsepower. If you have 45 HP at the rear tire, that will be about 53 HP at the crankshaft and then the restrictor diameter should be at least 22,2 mm.

I would be more then happy if I have 45 at crank

Perhaps not even 40 scratch

Will take it to the dyno soon
Revenir en haut Aller en bas
{mRk}



Nombre de messages : 52
Age : 46
Localisation : Trieste - Italia
Date d'inscription : 01/12/2012

MessageSujet: Re: [2 Stroke] Cagiva Mito Racer-new Exhaust   Ven 8 Mar 2013 - 16:26

Two years ago the first three bikes (Aprilia Rs 125 SP) in the Italian championship 125SP were held in parc fermé after the race. Were tested on the dyno. They found a little over 37 hp at the wheel.
Revenir en haut Aller en bas
{mRk}



Nombre de messages : 52
Age : 46
Localisation : Trieste - Italia
Date d'inscription : 01/12/2012

MessageSujet: Re: [2 Stroke] Cagiva Mito Racer-new Exhaust   Dim 16 Mar 2014 - 11:49

Monday, March 10 we are back on track (Rijeka- Grobnik, Croatia) with two Cagiva Mito SP. Perhaps few people know that the Cagiva Mito engine is an old Aermacchi project. We tested small exhaust and cilencer changes to looking forward to the new exhaust designed for the use of de Laval nozzle. I will use a tube 28x1 mm. I'm satisfied of the current performance of the engines, but I want to do even better.

This is the photo of the bike with the kit SP exhaust dated 1995:
[Vous devez être inscrit et connecté pour voir cette image]

The last update of the SP engine components and electronics made by Cagiva is dated 1996. So I updated all the engine components, including electronics and the exhausts. For years all use exclusively with the Aprilia RS 125 SP. I preferred to work on Cagiva also as an exercise in technique.

Questa è la seconda foto della moto con uno dei nuovi scarichi utilizzati nel 2013:
[Vous devez être inscrit et connecté pour voir cette image]
With this exhaust the engine works better before the maximum power. The bike is easier to drive for riders. I will modify one of these exhausts to insert the de Laval nozzle. Unfortunately, the friend who produces the exhausts for me lives more than 450 km from my house. He is like me, a simple fan of 2 stroke engines. So the work is progressing slowly. I don't have even a chance to try on dyno, I can only rely on telemetry on track and to the feelings of the rider. So any advice which speeds up work is much appreciated.

The exhaust that I will use for the inserts of de laval may remain unchanged up to the point where it will be added to the de Laval nozzle?
Revenir en haut Aller en bas
Filandro



Nombre de messages : 41
Localisation : Italia
Date d'inscription : 20/11/2012

MessageSujet: Re: [2 Stroke] Cagiva Mito Racer-new Exhaust   Lun 17 Mar 2014 - 3:12

Ecco un paio di foto dello scarico costruito usando il programma FOS:
[Vous devez être inscrit et connecté pour voir cette image]
[Vous devez être inscrit et connecté pour voir cette image]
Le saldature non sono impeccabili perchè non ho usato la calandra (non ce l'ho..)e il somaro che ha tagliato gli sviluppi al laser ha fatto un lavoro schifoso.
Dalla seconda foto si può vedere la ghiera, alla fine del controcono, che blocca in sede l'ugello.
Adesso non rimane che aspettare il fine settimana per andare a provarla.
Revenir en haut Aller en bas
{mRk}



Nombre de messages : 52
Age : 46
Localisation : Trieste - Italia
Date d'inscription : 01/12/2012

MessageSujet: Re: [2 Stroke] Cagiva Mito Racer-new Exhaust   Lun 17 Mar 2014 - 5:18

What parameters did you use? - Quali parametri hai utilizzato.
I'm curious to get your feedback. - Sono curioso di avere il tuo feedback su questa realizzazione.

This is the drawing obtained with the fos-pipe made ​​available by Fritz:
[Vous devez être inscrit et connecté pour voir cette image]

Parameters:
Bore × Stroke: 56.0×50.6 mm (124.6 cc)
Exhaust duration: 196 degrees
Target RPM: 11400 r/min
Target HP: 42,0 HP (BMEP 13.2 bar / 192.1 psi)
Wave speed: 550 m/s
Lcyl: 47.0 mm (piston to flange distance)
Cooling: liquid
Diffuser type: 2-stage

I'll try to make it. But first I want to try de de laval nozzles with existing exhausts.
Revenir en haut Aller en bas
Filandro



Nombre de messages : 41
Localisation : Italia
Date d'inscription : 20/11/2012

MessageSujet: Re: [2 Stroke] Cagiva Mito Racer-new Exhaust   Lun 17 Mar 2014 - 5:38

Frits, non Fritz, che poi si arrabbia..  
[Vous devez être inscrit et connecté pour voir cette image]
Revenir en haut Aller en bas
Frits Overmars

avatar

Nombre de messages : 2007
Age : 69
Localisation : Raalte, Holland
Date d'inscription : 12/10/2010

MessageSujet: Re: [2 Stroke] Cagiva Mito Racer-new Exhaust   Lun 17 Mar 2014 - 5:42

Filandro a écrit:
Frits, non Fritz, che poi si arrabbia..  
Grazie Filandro  Wink .

In the above drawing I see an end cone restriction diameter of 19 mm.That may be to narrow. For your target power of 42 HP it should be 3,06*SQR(42) = 19,8 mm, asssuming that you mean 42 HP crankshaft-power. If you mean 42 HP rear wheel power, then the power at the crankshaft will be about 50 HP and you will need a restriction diameter of at least 21,6 mm.
Revenir en haut Aller en bas
{mRk}



Nombre de messages : 52
Age : 46
Localisation : Trieste - Italia
Date d'inscription : 01/12/2012

MessageSujet: Re: [2 Stroke] Cagiva Mito Racer-new Exhaust   Lun 17 Mar 2014 - 10:06

Scusami Frits, ho un due amici che si chiamano Fritz, mi veniva naturale chiamarti così.


I mean 38 HP rear wheel power. I hypothesized a loss of 10% of power between the crankshaft and the wheel. I redid the calculations with the power loss percentage indicated, I got 45.2 hp. With the parameter "target HP" 45.2 I get 20.6 mm.
La potenza alla ruota è di 38 CV. Ho ipotizzato una perdita alla ruota del 10% circa tra albero motore e ruota. Con le perdite percentuali di potenza indicate ho ottenuto il nuovo valore di "target HP" di 45,2 CV. Con questo valore di potenza ottengo una restrizione 3,06*SQR(45,2) = 20,6 mm. Grazie.

The angle of the first cone of the kit SP 1995 exhaust is 3°, initial inner diameter of the exhaust is 35 mm. The angle of the second cone of the kit SP 1995 exhaust is 8°. The final cone is 16 °.
The angle of the first cone exhaust that we made is 4 °, inizial inner diameter is 35 mm. The angle of the second cone of the this exhaust is 9°. The final cone is 16 °.
This is the Cagiva cylinder exhaust side:
L'angolo del primo cono della marmitta kit SP del '95 è di 3°. Il diametro interno iniziale della marmitta è di 35mm. L'angolo del secondo cono è di 8°. L'angolo del controcono finale è di 16°.
L'angolo del primo cono della marmitta che abbiamo utilizzato è di 4°. Il diametro interno iniziale è sempre di 35 mm. L'angolo del secondo cono è di 9°. L'angolo del controcono finale è di 16°.
Questo è il cilindro Cagiva lato scarico:

[Vous devez être inscrit et connecté pour voir ce lien]
This is the exhaust flange:
Questa è la boccola di scarico:
[Vous devez être inscrit et connecté pour voir ce lien]
I will have to make a new exhaust flange because the initial diameter of the fos-pipe exhaust is greater.
Realizzerò una nuova boccola di scarico, il diametro iniziale della marmitta fospipe è maggiore. Devo anche modificare internamente la boccola di scarico?
Revenir en haut Aller en bas
Frits Overmars

avatar

Nombre de messages : 2007
Age : 69
Localisation : Raalte, Holland
Date d'inscription : 12/10/2010

MessageSujet: Re: [2 Stroke] Cagiva Mito Racer-new Exhaust   Lun 17 Mar 2014 - 10:25

{mRk} a écrit:
Scusami Frits, ho un due amici che si chiamano Fritz, mi veniva naturale chiamarti così.
Non ti preoccupare, {mRk}. Ma due Italiani che si chaimano Fritz? È veramente strano. Mi hanno sempre chiamato Federico quando lavoravo in Italia.
Citation :
I mean 38 HP rear wheel power. I hypothesized a loss of 10% of power between the crankshaft and the wheel.
I calculate with 5% loss in the primary transmission (assumed, straight-cut gears), 5% in the gearbox, 5% in the chain and 5% (or more) between tire and flywheel drum.
Citation :
I will have to make a new exhaust flange because the initial diameter of the fos-pipe exhaust is greater.
But not as great as in the above drawing. In the drawing I see a diameter of 39 mm at the flange. When I calculate with your parameters, I find a flange diameter of 37,5 mm. And these diameters are very important. If you make them too large, the engine will lose a lot of torque.

EDIT: Maybe I got confused by the two drawings. In the first drawing, I could not read the flange diameter.
In the second drawing I read 39 mm, but I have my doubts about several dimensions in that drawing scratch.
Revenir en haut Aller en bas
Filandro



Nombre de messages : 41
Localisation : Italia
Date d'inscription : 20/11/2012

MessageSujet: Re: [2 Stroke] Cagiva Mito Racer-new Exhaust   Lun 17 Mar 2014 - 16:29

EDIT: Maybe I got confused by the two drawings. In the first drawing, I could not read the flange diameter.
In the second drawing I read 39 mm, but I have my doubts about several dimensions in that drawing scratch.[/quote]
Second drawing is mine..
My engine data:
Speed of sound: 550 ms
rpm of max power: 11500 g/min
exhaust timing: 196°
cubic capacity: 125 cm3
Lcyl 75 mm
Lmax=(550x196x88)/11500=825 mm
Dx=(407-196/7100)xSQR (125x11500)=35.6 mm
Dheader=((0.36x75/0.34x825)+1)xDx=1.096x35.6=39.01mm
Ddiff=1.36x35.6=48 mm
Dmax=3.6x35.6=128 mm
Please Frits  , give a look and tell me what I did wrong
Revenir en haut Aller en bas
Frits Overmars

avatar

Nombre de messages : 2007
Age : 69
Localisation : Raalte, Holland
Date d'inscription : 12/10/2010

MessageSujet: Re: [2 Stroke] Cagiva Mito Racer-new Exhaust   Lun 17 Mar 2014 - 18:30

You did not do anything wrong Filandro. Your pipe dimensions did not agree with the Mito-parameters that were presented by {mRk}. But with the parameters that you just posted, everything is OK, except maybe the exit diameter of the end cone. I would advise to make that larger for safety reasons, even if you don't expect to get more than 38 crankshaft-HP.
Revenir en haut Aller en bas
Filandro



Nombre de messages : 41
Localisation : Italia
Date d'inscription : 20/11/2012

MessageSujet: Re: [2 Stroke] Cagiva Mito Racer-new Exhaust   Mar 18 Mar 2014 - 5:11

Thanks!
This pipe has an interchangeable exit cone nozzle; I made two nozzles, with an ID of 20 and 21 mm.
Now it's only time to test and compare it..
Revenir en haut Aller en bas
{mRk}



Nombre de messages : 52
Age : 46
Localisation : Trieste - Italia
Date d'inscription : 01/12/2012

MessageSujet: Re: [2 Stroke] Cagiva Mito Racer-new Exhaust   Mar 18 Mar 2014 - 6:07

Frits Overmars a écrit:
{mRk} a écrit:
Scusami Frits, ho un due amici che si chiamano Fritz, mi veniva naturale chiamarti così.
Non ti preoccupare, {mRk}. Ma due Italiani che si chaimano Fritz? È veramente strano. Mi hanno sempre chiamato Federico quando lavoravo in Italia.
Citation :
I mean 38 HP rear wheel power. I hypothesized a loss of 10% of power between the crankshaft and the wheel.
I calculate with 5% loss in the primary transmission (assumed, straight-cut gears), 5% in the gearbox, 5% in the chain and 5% (or more) between tire and flywheel drum.
Citation :
I will have to make a new exhaust flange because the initial diameter of the fos-pipe exhaust is greater.
But not as great as in the above drawing. In the drawing I see a diameter of 39 mm at the flange. When I calculate with your parameters, I find a flange diameter of 37,5 mm. And these diameters are very important. If you make them too large, the engine will lose a lot of torque.

EDIT: Maybe I got confused by the two drawings. In the first drawing, I could not read the flange diameter.
In the second drawing I read 39 mm, but I have my doubts about several dimensions in that drawing scratch.
People, sorry for the OT.
No, non sono italiani. Uno è sloveno, lavorava alla Tomos. Lo chiamiamo tutti Fritc (si pronuncia Fritz in italiano). Mi ricromava i cilindri. Abito vicino al confine con la Slovenia, l'ex fabbrica della Tomos è a 10 km da Trieste. Avevano un buon nikasil.
L'altro è tedesco (aus Südtirol in Italien), si chiama Fritz.
End OT



Thanks for the information. I tried to optimize everything (primary transmissio, primary transmission, chain, contralbero etc.) within the limits imposed by the technical regulations. I was expecting a lower percentage loss of power.

We use different cylinders with different flange exhaust. Filandro uses standard cylinders. I use last cylinder made for the SP kit. My exhaust flange is shorter. For this reason the parameter "Lcyl" is different.

Then there are also other differences, as the type of piston. Filandro with standard cylinders uses the standard flattop pistons. I use the Mahle (Ziegler) pistons made for Cagiva 500 and then homologated for the Mito SP engine, these:
[Vous devez être inscrit et connecté pour voir ce lien]
[Vous devez être inscrit et connecté pour voir ce lien]
The Mahle has an outer band of 3 mm inclined at 6 °. For this reason the design of the heads differ. But this does not affect the dimensioning of the exhuast.
The drawings of the heads that we use is something like that, for those who want to do some head design testing with engines similar to ours:
[Vous devez être inscrit et connecté pour voir ce lien]
This is for flat pistons.
Revenir en haut Aller en bas
Contenu sponsorisé




MessageSujet: Re: [2 Stroke] Cagiva Mito Racer-new Exhaust   

Revenir en haut Aller en bas
 
[2 Stroke] Cagiva Mito Racer-new Exhaust
Revenir en haut 
Page 3 sur 4Aller à la page : Précédent  1, 2, 3, 4  Suivant

Permission de ce forum:Vous ne pouvez pas répondre aux sujets dans ce forum
 :: TECHNIQUE :: MOTEURS-
Sauter vers: