100 Octane Should I use it?

phar2slo

Living Legend
Joined
Apr 29, 2017
Messages
2,220
Location
Christchurch
Ride
2006 classic
Hi all,
We are able to buy 100 octane fuel in the south island of New Zealand.

My question is should I run the beast on this stuff.

Will it hurt the motor. Will I need to get a tune done on a dyno?
 
Not unless you have been tuned for it, theoretically less power, as ignition of gas will be delayed
 
I've read that our engines run better on 87 octane than ether 89 or 93 octane. I thought I saw the 87 O. in the owners manual. What is the correct number?
 
87 if it doesn't ping, 89 if it does - US numbers. I called Triumph USA a few years ago because the printed specs had changed.

TUNEECU can also fix the timing and stop the pinging as well.
 
It is only 89 in American numbers , IF one reads the sheet. Yes the R3 is a low compression engine, it is also a high cranking pressure engine. A new R6 yamaha has roughly 13:1 comp stock, the R3 has 8.7: 1 . Both have the same cylinder pressure on cranking tests. You will not hurt the engine, Put it in and go for a ride, see how it feels.
 
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