ninjette.org - View Single Post - What octane gas do big bore high compression guys run?

Mohawk · January 14th, 2023, 10:00 AM

I ran this up to compare loads for the 300 Ninja engines I'm big boring.

https://www.dropbox.com/s/xfm3qns1da...Loads.JPG?dl=0

Rev & weight increase the load much more than combustion. And most engine have 10-20% over engineering for failure free longevity. By this I mean they design/test it to find practical limits then add material &/or strength to components to ensure they don't fail at the prak expected loads. If you don't go too crazy you can use some of that spare capacity & still have a reliable engine.

Note that I am disappointed i the weight of the Wiseco pistons & should have just gone with ZZR600 ones.

January 14th, 2023, 10:00 AM	#17
Mohawk ninjette.org guru Name: Chris Location: Bristol, UK Join Date: Feb 2016 Motorcycle(s): ZZR250, VFR800 Posts: 478	I ran this up to compare loads for the 300 Ninja engines I'm big boring. https://www.dropbox.com/s/xfm3qns1da...Loads.JPG?dl=0 Rev & weight increase the load much more than combustion. And most engine have 10-20% over engineering for failure free longevity. By this I mean they design/test it to find practical limits then add material &/or strength to components to ensure they don't fail at the prak expected loads. If you don't go too crazy you can use some of that spare capacity & still have a reliable engine. Note that I am disappointed i the weight of the Wiseco pistons & should have just gone with ZZR600 ones. Last futzed with by Mohawk; January 14th, 2023 at 11:43 AM.