Nitrous and retarding timing...why?

[Falaholic]

Thought just crossed my mind.
I recall people mention retarding the timing on their nitrous applications, using their Dyna 3000.
My Q is why?
If the Vmax runs best on 87 octane, why not just run 93 when using nitrous.
i.e. Chemical retardation.

 

[blaxmax]

Thought just crossed my mind.
I recall people mention retarding the timing on their nitrous applications, using their Dyna 3000.
My Q is why?
If the Vmax runs best on 87 octane, why not just run 93 when using nitrous.
i.e. Chemical retardation.

Actually it helps when you use higher octane with nitros and rule of thumb is retard 1 to 1/2 degrees per 50 hp gain. It helps if you use a colder spark plug too.
Hopefully this will answer any question you have about it.
http://www.starracing.com/nitrous_oxide_general.htm