Super Jet new ada/impeller

Location
Spokane,wa
measure it, your going to want to be around 84.5mm to 85mm


well i guess it official it 's bore out?it was measured in the inside wall

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i guess this explain why i had so much low end with a stubby cone with a stock prop
 
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Location
Spokane,wa
now that i got the compression at 185psi, what mix should i run?before the ada head i was running 50:1 w/92 octane(pump gas).do i got to go with a different mix or stay with the same mix?
 

Cannibal

Tasty Human
Location
Summit Lake, WA
now that i got the compression at 185psi, what mix should i run?before the ada head i was running 50:1 w/92 octane(pump gas).do i got to go with a different mix or stay with the same mix?

Man, this is a can of worms cause everyone has their own opinions. Many people run 40:1, some builders say 32:1, other say 50:1. I will say, if you stay with 50:1, use a good quality oil like some of the racing stuff, or Amsoil Dominator or Interceptor.
 
Location
Spokane,wa
Man, this is a can of worms cause everyone has their own opinions. Many people run 40:1, some builders say 32:1, other say 50:1. I will say, if you stay with 50:1, use a good quality oil like some of the racing stuff, or Amsoil Dominator or Interceptor.

didn't mean to open up a can of worm,but i am running amsoil but not what u mention....if u don't mine me asking what do u run?i was thinking of mixing 40:1
 

Cannibal

Tasty Human
Location
Summit Lake, WA
I run 50:1 Interceptor, mostly because I can get it at my local CarQuest. You must be running HP Injector then (not sure what else is left for 2stroke oil)? That's fine at 50:1 as well. By quality, I mean higher end stuff like Amsoil, Klotz, Maxima, etc. If you were going to run Pennzoil or Quicksilver synthetics, maybe increase the oil to 40:1 or 45:1, petroleum oils, at least 40:1, maybe even into the 30s.

Really, it depends on your tuning and mods. For what you run, my opinion is 50:1 is good. If you have it tuned to the gnat's a$$ (or are unsure of your tuning), might want to run a bit more oil for safety. Tons of people run 40:1, if it makes you feel better, run it. It really won't hurt anything.
 
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Location
Spokane,wa
now that u have mention amsoil hp injector that is the oil i run...i think i'll go ahead and run 40:1 mix and go from there...running at 30's mix maybe to much oil and with the gas prices in summer and using than much oil i'll never get to ride my ski...lol...
 
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