Skip to content
View in the app

A better way to browse. Learn more.

rollaclub.com

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

Double Is Better

Featured Replies

Hey All

 

If you look at a rotory engine, you'll see that there are 2x spark plugs per rotor.

 

I was thinking would you get any more power out of a cylinder engine if you had 2 spark plugs per cylinder insted of 1 per cylinder?

 

Teddy

Not really. Some motors (such as the CA20E) utilise twin sparkplugs.

 

The main reason a rotary has two is because of the length of the combustion chamber. Without the second sparkplug the combustion would take a LONG time...and would be much less efficent

some of the Honda Jazz models currently use the 2 plugs option as well - this is to ensure a full fuel burn - the plugs fire slightly out of synch to each other so the second one catches the remaining fuel/vapour

 

a good economical system but would be a nightmare without a decent ecu

Also means a plug change costs twice as much!

 

I have a feeling rotary plugs fire SLIGHTLY out of alignment too...but thats easily handled by the dizzy.

Please sign in to comment

You will be able to leave a comment after signing in

Sign In Now

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.