General Theory: What is Velocity Stack?
It is a device, generally with conical or cylindrical shape, which is mounted between the airbox where the air filter is contained and the throttle body.
What is its use and what are its benefits?
It is developed to increase the volumetric efficiency of the engine by providing in more air, reducing turbulence and improve the engine response at throttle opening. This results is traduced in increased performance.
Length, taper and diameter are technical details that have a direct effect on the power erogation, finding the right dimensional ratio between these details, it is possible to reach better performance.
MISTRAL version
Our Velocity Stack, specific for Royal Enfield Continental GT 650 and Interceptor 650.
The product has been entirely studied and designed with CAD3D, then with the use of specific software to analyze the air flows in relation to the intake pressure we have defined shape and dimensions obtaining some prototypes. Then we developed the prototypes in reality through 3D printing and with the help of our test bench we tested them all to define the best for torque/power/rpm.
An excellent result on the entire power/torque curve, from the very first rpms the bike results immediately much more responsive, even at 3500 rpm where it suffers more we were able to obtain + 1cv of power and + 1Nm of torque, then increasing the revs the gain increases both in terms of net power and torque till a maximum of +2.3 cv and +3.5 Nm.
The product is completely machined from solid with the best technologies on the market, installation is very simple and does not require modifications to the bike.
Royal Enfield
Continental GT 650 E4/E5
Interceptor 650 E4/E5
MG-VS-REGT650
The product is placed in the airbox, the operation is simple and it’s included the video-tutorial, accessible trough QR code
Installation time: 5/7 min.
Not required any modification to the bike
Blue Line: original airbox
Red Line: classic Stage 2 composed by racing air sistem with the removal of airbox’s cap. In this case the cap is replaced with a plate support that hold the filter and open the filter’s hole. The solution is meliorative but does not guarantees the better performances
Green Line: obtained results with our Mistral Stage 2+, composed by Racing Air Filter and Mistral Velocity Stack. Thanks to the design, it protect the filter from rain
Where is the product installed?
The product is installed in the airbox, the installation time is 5/7 minutes, no modifications to the bike are required.
Why didn’t the Royal Enfield company directly develop this component?
Royal Enfield company optimizes the bike and prepares it for the sale, it is not certain that the solutions adopted are the best ever, in fact it is possible to optimize any detail having the appropriate knowledge and doing specific tests.
Why did you produce it in aluminum or not in 3D printing like prototypes to make it cheaper?
3D printing is very useful for prototyping however the printed fibers are permeable to liquids and also do not guarantee long-term stability to solvents, gasoline and heat, subjected to these variables they can easily deform. Aluminum is the ideal solution: it is resistant, the surface is perfectly smooth and it is eternal. There are other 3D printing techniques that can be used for the product, however the cost would have been similar to aluminum, so with the same characteristics and being able to develop it in aluminum, we opted for this material.
On a completely original bike, does it works?
The development was done on a completely original bike, so yes.
On motorcycles with modified components, catalyst remover, sport catalyst, big bore headers pipes, exhaust, sport air filter, etc., the gain is similar and proportionally linked to the modifications already made.
Does it need a remappaing of the ECU?
No, it doesn’t. We develope any our component to be 100% compatible with the stock bike and original fuel map. No modifications to the ECU or to the bike are necessary. The remappaing is a next step to have another increasement in performance. We offer this service just in our company.
For better performances we recommend Mistral Racing Air Filter
© Copyright – Mistral Special Parts – VAT nr. 02180240133 – Web design by: Alkimedia web agency & Sviluppo siti web | Privacy & Cookie policy | Manage consent
Cookie | Duration | Description |
---|---|---|
wp-wpml_current_language | session | WordPress multilingual plugin sets this cookie to store the current language/language settings. |
yt-player-headers-readable | never | The yt-player-headers-readable cookie is used by YouTube to store user preferences related to video playback and interface, enhancing the user's viewing experience. |
yt-remote-cast-available | session | The yt-remote-cast-available cookie is used to store the user's preferences regarding whether casting is available on their YouTube video player. |
yt-remote-cast-installed | session | The yt-remote-cast-installed cookie is used to store the user's video player preferences using embedded YouTube video. |
yt-remote-connected-devices | never | YouTube sets this cookie to store the user's video preferences using embedded YouTube videos. |
yt-remote-device-id | never | YouTube sets this cookie to store the user's video preferences using embedded YouTube videos. |
yt-remote-fast-check-period | session | The yt-remote-fast-check-period cookie is used by YouTube to store the user's video player preferences for embedded YouTube videos. |
yt-remote-session-app | session | The yt-remote-session-app cookie is used by YouTube to store user preferences and information about the interface of the embedded YouTube video player. |
yt-remote-session-name | session | The yt-remote-session-name cookie is used by YouTube to store the user's video player preferences using embedded YouTube video. |
ytidb::LAST_RESULT_ENTRY_KEY | never | The cookie ytidb::LAST_RESULT_ENTRY_KEY is used by YouTube to store the last search result entry that was clicked by the user. This information is used to improve the user experience by providing more relevant search results in the future. |
Cookie | Duration | Description |
---|---|---|
_GRECAPTCHA | 5 months 27 days | This cookie is set by the Google recaptcha service to identify bots to protect the website against malicious spam attacks. |
cookielawinfo-checbox-analytics | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics". |
cookielawinfo-checkbox-necessary | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary". |
CookieLawInfoConsent | 1 year | CookieYes sets this cookie to record the default button state of the corresponding category and the status of CCPA. It works only in coordination with the primary cookie. |
elementor | never | The website's WordPress theme uses this cookie. It allows the website owner to implement or change the website's content in real-time. |
rc::a | never | This cookie is set by the Google recaptcha service to identify bots to protect the website against malicious spam attacks. |
rc::c | session | This cookie is set by the Google recaptcha service to identify bots to protect the website against malicious spam attacks. |
tk_ai | session | Stores a randomly-generated anonymous ID. This is only used within the dashboard (/wp-admin) area and is used for usage tracking, if enabled. |
viewed_cookie_policy | 11 months | The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data. |
woocommerce_cart_hash | session | Helps WooCommerce determine when cart contents/data changes. |
woocommerce_items_in_cart | session | Helps WooCommerce determine when cart contents/data changes. |
woocommerce_recently_viewed | session | Powers the Recent Viewed Products widget. |
wp_woocommerce_session_ | 2 days | Contains a unique code for each customer so that it knows where to find the cart data in the database for each customer. |
wpEmojiSettingsSupports | session | WordPress sets this cookie when a user interacts with emojis on a WordPress site. It helps determine if the user's browser can display emojis properly. |
yith_ywraq_hash | Cookie provided by the Yith plugin to enable the use of product filters. This functionality is necessary to proper use the website. | |
yith_ywraq_items_in_raq | Cookie provided by the Yith plugin to enable the use of product filters. This functionality is necessary to proper use the website. | |
yith_ywraq_session_ | 2 days | Cookie provided by the Yith plugin to enable the use of product filters. This functionality is necessary to proper use the website. |
Cookie | Duration | Description |
---|---|---|
Google Maps | Google Maps is a map visualization service managed by Google Inc. and is used to integrate such contents within its pages. | |
sbjs_current | session | Sourcebuster sets this cookie to identify the source of a visit and stores user action information in cookies. This analytical and behavioural cookie is used to enhance the visitor experience on the website. |
sbjs_current_add | session | Sourcebuster sets this cookie to identify the source of a visit and stores user action information in cookies. This analytical and behavioural cookie is used to enhance the visitor experience on the website. |
sbjs_first | session | Sourcebuster sets this cookie to identify the source of a visit and stores user action information in cookies. This analytical and behavioural cookie is used to enhance the visitor experience on the website. |
sbjs_first_add | session | Sourcebuster sets this cookie to identify the source of a visit and stores user action information in cookies. This analytical and behavioural cookie is used to enhance the visitor experience on the website. |
sbjs_migrations | session | Sourcebuster sets this cookie to identify the source of a visit and stores user action information in cookies. This analytical and behavioural cookie is used to enhance the visitor experience on the website. |
sbjs_session | 1 hour | Sourcebuster sets this cookie to identify the source of a visit and stores user action information in cookies. This analytical and behavioural cookie is used to enhance the visitor experience on the website. |
sbjs_udata | session | Sourcebuster sets this cookie to identify the source of a visit and stores user action information in cookies. This analytical and behavioural cookie is used to enhance the visitor experience on the website. |
Cookie | Duration | Description |
---|---|---|
PREF | 8 months | PREF cookie is set by Youtube to store user preferences like language, format of search results and other customizations for YouTube Videos embedded in different sites. |
VISITOR_INFO1_LIVE | 6 months | YouTube sets this cookie to measure bandwidth, determining whether the user gets the new or old player interface. |
VISITOR_PRIVACY_METADATA | 6 months | YouTube sets this cookie to store the user's cookie consent state for the current domain. |
YSC | session | Youtube sets this cookie to track the views of embedded videos on Youtube pages. |