I have a few options for you.

1st: I have the Sirio rod you are asking for: $30 paypal, you send as a gift. I will ship priority mail w/del confirm but realize that if you send as a gift, you have no protection. $35 and I will send via UPS and you do not have to send as a gift. It protects both of us if it gets lost in the mail.

2nd: I have a brand new Alpha engine to sell. Also in the pic is a used engine. It is well used and for value consider it to only be a used carb and a used cylinder head. I will sell you both engines, both rods, and the circlips for $235 shipped paypal with protection for both of us. I will throw in one of used pipes/manifold combos. One is the legal 2611 and you can see the how the area around the nipple is pushed in a bit. The other is the newer version of the pipe with the 2611 number which is technically not legal.

We can also talk about the third pipe only which is the legal version of the 2611. All the stuff is for sale.

PM sent.

All the Sirio and Orion stuff I have listed above is sold and payment received.

Hi guys, I have recently purchased two .21 CLR7 STI AAC engines, how whould you compare them to 35 plus 21? Are they quicker or similar, still have bot run them yet.

Im selling the above mentioned. Search the auction in ebay.

The sirio has more top end the plus has more bottom
just take your time with the sirio they take a longer time to break in verus the plus & are less durable if you over lean it out since it is the AAC version I would try to keep the temp range after breakin no more than 240

anyone knows the amount of shims the .12 evo4 sti comes as default? is it 0.3mm for 16% as stock?

Just check your gap with solder. 0.45-0.55 mm is ideal fro 16% nitro

Thanks for the information, I am in desperate need of bottom end, we have tight tracks, what motor will do the trick, off road with on road cranks??

I am currently using this enigne evo2 wcr .12 , and am looking to get a new motor is this one a good one and will it be much quicker Sirio S12 XXX VK Touring w/EFRA2653 Exhaust Set or is there a better one ?

Thanks

The Sirio XXXV is probably the best .12 that's on the market currently and the 2653 is the perfect match.

does anyone know the diff between the xxx and the xxxvk?
something in the exhaust and internal in the case?

The Sirio that has the best bottom is the WCR which are hard to find it has the short crank which is similiar to the crank that is on the cl7B

The XXXV has a new crankcase with lower internal volume and slightly different timing.
The K stands for Kit, meaning that the engine comes with the 2653 exhaust.

XXX:


XXXV:

thank you stefan!