Would you know any good sites to buy the 12tup evo2 engine from ?

Cheers
ZiiZo

If you want a 5 port Sirio, I would suggest you buy the Collari LC12 PRO 5, either at Werks Racing, or in this German distributor
http://www.serpent.at/action/collari/collari.html

You can't go wrong with it...plus for your hot summers you'll be better off with the AAC P/S. They sustain better high temps, high rpm operation.

It's time you make a decision, or you'll go crazy asking same questions all over the forum.

AFM

AFM

Agreed 110%, thats why i just ordered the 12 tup from teamtrinity through shopatron.

There is a slight confusion though i thought you might know. The sirio sight has the 12 tup showing with the short type shaft now in the description it says SG shaft which is required for the RRR or FW...

I think they put the wrong picture ? ?

12 tup AF is the other small one
12 tup is the SG shaft.......

i got the second one ...... hope i am safe !

Congratulations......just pray that Trinity hasn't send you wrong engine.....they are known for messing up..unless they have improved.

AFM

LOL thanks for making this period worse for me !!

hi i was wondering which would be the fastest motor of these three:
M. collari modified sirio EVO2
sirio S12 WCR EVO2 w/pipe and manifold
werks racing LC12PRO3

also, does the S12 WCR EVO2 come with a spare conrod and bearings etc. like the 21 worlds motor?

Hi AFM

Can you just let me know, what type of fuel to be used with the Sirio'ss and do i need to add/remove shims incase i use higher Nitro

cheers
ziizo

On a .12 engine it is safe going 0.10mm over or under 0.46mm, so that is 0.36mm or 0.56mm, of total head clearance.
Generally on a .12 engine 0.10mm will change the compression ratio about 3/4 to 1 point.

Never assume that the head shim that is on the engine is the actual head clearance, in many cases you will find that the engine actually has 0.20mm to 0.15mm without any head shim.

Sirio's have 0.20mm without shims, and the factory installs 0.30mm shims, giving the engine 0.50mm stock head clearance.

It is best to measure the head button recess and the piston to the top of the liner at top dead center and subtract, to determine proper shim. This is the only way to really know.

You can safely use 25% Nitro on the stock head clearance.

Add shims for higher nitro contents, and reduce shims for lower nitro contents.

AFM

HI AFM

thanks for the info. I am using 30% nitro while racing since its what i had got earlier. but this is on the OS TR - T i have. I think i will settle for the 25% nitro and 16 oil that we have from Cool power..... but the problem is while racing that we only have to use the sponsor fuel of 30% nitro with 12 oil from byron !!

In this situation i have to add another shim over the existing shim!!

When you get your engine, measure the shims that come with it, measure actual combustion chamber without shims as i allready explained, AND THEN WE'LL SEE WHAT SHIMS YOU NEED FOR EACH FUEL.

afm

Does anyone have the part number for the piston and sleeve set for my SE12? Where can I order one other than Trinity?

hi i was wondering what exhaust systems you guys feel work the best with the Collari LC12 3port motor

A coke bottle

get out of it ya punkass, i know your too cheap to afford an exhaust for ya 415 LOLOL

1.- Sirio in line system S12 200006
2.- M.Mielke in line system (Werks Racing)
3.- Novarossi 51602 two piece pipe/header

AFM