serpentracer1

Just want to let you know I picked up one of your motors from Lee at winners circle,Your motor kicks AZZ.Great work on it looking forword to running more of your motors

JJ187RC

iTrader: (7)

Next dumb question,

What do you have to do to run a turbo plug in a non turbo engine?

serpentracer1, you won't be dissappointed, I had him do a rossi pixy black for me and the engine runs very well and is easy to tune when weather changes occur.

serpentracer1

Oh im not just got back into nitro after a 4yr layoff and getting used to tuning the motor myself I used to have a motor tuner before all I did was chassis setup so im getting used to it and the thing is flying

EdwardN

iTrader: (1)

Because of turbo plug design ( will not go to details), turbo plugs are much better then regular on any type of engines. This advantage is easy visible if right tunning is done ( not modding-tunning). So you can use turbo plug every where and should have at list 5-8% of power gain easy ( in some cases was indicated +15 %).

InitialD

Change the non-turbo button head to a button head that fits a turbo plug?

EdwardN

iTrader: (1)

To use turbo plug on non turbo engine, you need first replace regular head botton to turbo head botton and then make sure to use advantage of turbo plug right-you will see difference right away.

spenzalii

iTrader: (2)

Just out of shear curiosity, do you do any mod work on OS motors, Grinder? I may pick up one of your Sirios, but I may keep my OS as a fun knockaround motor.

Grinder

iTrader: (2)

Modified Sirio Evo II Crank

Grinder

iTrader: (2)

Murnan Modified Sirio Evo II Aluminum Sleeve

stefan

Uriah,

is that crank scoop supposed to be ROAR legal?

Paolo M

For sure not Efra. IFmar sould release the update rules about engines soon. Donīt know exactly the ROAR rules, i think that as long as the internal crack hole has the same diameter, is roar legal

Paolo M

Nice work Uriah
Did you try already to work in the exhaust port on the allu sleeves? Seems that the chrome in the allu sleeves is more sensitive to the diamond tool than the brass one

mtx3racer

what is the murnan mod. web site?

B

iTrader: (13)

i believe it is www.murnanmodified.5u.com

try it

afm

Hi Grinder
This a better forum to talk about Sirios. By the way my Sirio pipe should arrive this Monday, I'll test it and let you know my impressions.
Two questions:
Head shiming: The Sirio Evo 2 measured cylinder recess from piston at top PMS and got 2.45mm, measured head recess and got 2.00mm, so we have a difference of .45mm.
To use the engine with 20 - 25% nitro, what is the ideal total chamber one should have? I've read that it should be around .55mm, is this correct?, because the engine comes stock with two copper shims, one is .10mm and the other is .15mm, so i could just use the .15mm, am i right?
Glow plugs: What is the equivalent of O'Donnells 77 and 99 on Novarossi??, because that is what is available down here.
AFM