Welcome, Guest
Username: Password: Remember me
  • Page:
  • 1

TOPIC: Compression ratio

Compression ratio 11 years 1 month ago #102039

I have been looking for a couple days to find the compression ratio of a RDS-25

Please Log in or Create an account to join the conversation.

Re:Compression ratio 11 years 1 month ago #102046

  • MarkS
  • MarkS's Avatar
  • Offline
  • Moderator
  • Moderator
  • Posts: 5348
  • Karma: 118
  • Thank you received: 5
You (I) don't hear the term compression ratio used much in the two stroke world AZ, but there is a formula that can be used to calculate that info;
www.wikihow.com/Calculate-Compression-Ratio
Generally speaking, if you get readings over 100psi and no more than a 5% variance between cylinders I believe it's considered fairly good. Keep in mind I'm just a shade tree / apprentice / rookie kinda guy, maybe one of the true technicians can enlighten further?

Please Log in or Create an account to join the conversation.

Mark
  • Page:
  • 1
Time to create page: 0.048 seconds

Donate

Please consider supporting our efforts.

Glassified Ads

Very clean Attwood “Jetson" style vintage stern light
( / Parts / Miscellaneous)

Very clean Attwood “Jetson" style vintage stern light
12-18-2025

Flying Scott 60
( / Engines)

noimage
10-22-2025

FOR SALE : YAMAHA 300 HP 4 STROKE
( / Boats)

FOR SALE : YAMAHA 300 HP 4 STROKE
10-02-2025

FG Login

FiberGoogle

Who's Online

We have 5825 guests and no members online