10:1 piston on 200s what octane?

[honda200sx]

i have a 200s motor with a 10:1 piston on my 200x what octane should i run. I felt like i was not getting all i could out of it at top speed.



Matt

[hondatrikesrule22]

You will be fine on regualr gas.

[crackshot]

just remember, the higher the octane, the more expansion you get. more expansion means more heat. higher octane=more heat

[honda200sx]

what would make me lose power at high speeds. Well i shouldnt say i lose power but it doesnt feel like i am getting the most speed possible. I have a 200s motor a 200x carb with a 110 jet a uni filter, and a cobra exhaust.


Matt

[hondatrikesrule22]

You need to re-jet your carb after adding those parts. That could explain your power loss.

[Wickedfinger]

My Wiseco'd 200S ran fine on regular.

[83185s]

thats cool..anyone know what i would need on my 185..its bored 30 over im not sure of the comp tho..its only got a straight pipe on it right now cause i cant afford a new exhaust i was thinkin about gettin one off ebay since there is like 3 but not sure..by the way..its got a straight pipe on it cause when i got it all it had was the header..and it kept burnin my leg so i added some pipe..lol..my carb is stock and bored .30 over do i need to rejet to a bigger? its got a 98 main..i think i should go to a 100 or 102