Freestyle dasa 1100cc 16mm domes 48 cc what octane fuel??

[ATB]

hello,what octane fuel its recomended for domes 48cc for this engine??

thanks

 

[swannysxr]

take a compression reading, there are too many variables ie: base gasket thickness, squish etc. to go by dome size alone. Didn't Dasa rec. fuel octane?

 

[js/sj]

110

 

[ma7room]

110

x2

 

[ATB]

Its 185 psi

 

[Roo]

Its 185 psi

110 not needed.

 

[swannysxr]

110 not needed.

X2, 185 is plenty safe to run 93

 

[Matt_E]

X2, 185 is plenty safe to run 93

Are you personally running a motor of that bore size on 185psi and pump gas?

 

[Christian_83]

ATB write og call Kyle.
I've just ordered "200 psi" domes for my 850. He told me that i would be all good on the Shell V power 99/100 oct
Not only compression determines what octane fuel you should use, port timing is allso a factor.
Look at this chart, to see the diffrence between the fuels. And allso the pump gas ratings for diffrent countries and brands.
http://en.wikipedia.org/wiki/Octane_rating

 

[Aircraftsalz]

First off matt_e is right... Pump gas on a 1100.... I have rode a few Dasa 1100's.. Things that don't work on the Dasa 1100
(b pipes, small pump, low compression, and stock electrics) if you have to run any of those on the 1100 your better off with a stock stroke jetmanic bb....If my memory is correct 50cc domes pump gas low comp, 48cc middle. 46cc race gas



Heres a setup that I ran and was spot on for it's time ...

Dasa 1100 16 mil built by Thrust
novi 48's on Dasa intake , I think I was running 130/135 jets but I can't remember for sure
msd TL with static timing at 36 deg with custom FW
46cc domes with compression at 225-230
race gas 110 using castor 927 mixed 40:1
148 setback mag running a 14/21 prop
86.5 mm reduction nozzle gp760/800
protect steering nozzle bored to 91.5 mm
power factor pipe, 130 jet in stinger, running water box

The power this setup was making was crazy... Now with bigger pumps and water line routing this motor could have been pushed way more... I know everyone is going to say that's to much timing... The Dasa 16 mil loved compression and timing, I put a lot of fuel on my setup and it never missed a beat...

In a Rickter Xfs I would run a 13/22 or even 12/23 prop...

If your not scared of it , it's not making enough power... Riding a ski that wants to hurt you is where it's at...

 

[ATB]

now i put 98 octane,i think its good octane fuel,but im think its not good put 95 octane,what you think??

other question,in my power factor,i have not main in sting,i put picture,its this place which i put 135 main??

thanks