Made in D.B. Tecnology Engine

F.T. Line .21 On Road Atomic rappresent the latest evolution of engines for the high competition in .21 On Road Class. The engine comes with a extra long stroke design to improve the power in all the rage of use. 
All parts used for this engine suffered a tough test sequence lasting over a year on racetracks around the world, then each component before being assembled are tuned and cecked personally by the expert hand of Mr. Voghera, which prepares and assembles the engine from beginning to end, select the best components for each piece ,for this reason every engine is unique and came with a certificate of authenticity thon at includes the serial number of the engine beside other information.
F.T. Line .21 On Road Atomic engine is supplied with: HAND TUNED triple balanced 14,2 mm 'turbo' silicone-filled crankshaft for improved fuel flow and reduced weight
, super light & strong connecting rod made by special aluminium which has been checked ultrasonic
, HAND TUNED hard chromed brass liner with tear-drop work on the ports
, lightened CNC machined piston made from high percentage silicone alloy billet, ultra light weight cooling head, ceramic 14,2 mm main bearing and steel front bearing in SWISS quality, a complete CNC alu slide carburetor with 8.0mm. 8.5mm and 9.0mm venturi inserts, also in aluminium.

Displacement: 3,49 cc
R.P.M. (max power): 46.900 RPM
Bore x stroke: 16,12 x 17,10 mm
Sleeve: ABC 7 ports
Rear ball bearings: Ceramic
Front ball bearings: Swiss steel
Crankshaft: 14,2 mm Turbo
Carburetor: Alluminium Slide Double Adj
Glowplug: Turbo
Exhaust position: Rear
Fuel type: 16% nitro

hate to say and ask, any photos?

Dang 46.900 RPM !!!

Nice paper specs but even my JP 35+ did reach that on my telemetry screen.

These looked rubbish in Fiorano at the last round of the ENS a few weeks ago. The stock OS's wiped the floor with them. Even the Picco WC engines were quicker and I haven't got a lot of time for Picco engines.

I did expect more from the XRD engines (especially as the people behind it came from screaming sirio heritage) but very disappointing to be honest. You can't beat the stock OS's or modified Novarossis. I call BS on that RPM claim as well maybe off load but no way in practice.

Good info Dan

Photos

https://www.ftlineteam.com/products/engine/21-on-road/

46.900 RPM
It's the highest regimen I've seen in a long time.
But I do not know if it does it in charge, but there it is and always a good marketing to have an engine with a huge final RPM.

The published stats are meaningless these are all over inflated paper numbers. What matters is what is seen on the track...

I know RickV as sponsored driver and distributer of XRD did bought 3 Novarossi's for the worlds and from what I have seen he was running a Tesla engine. All because the XRD was not good.

Roelof,
In your experience, what is a reasonable and proven RPM mark an on road engine hits at top speed????

Thanks

AFM

At ENS Fiorano I know of 2 other factory team XRD drivers that were running OS engines with XRD heads. Yeah these aren't ready for the masses just yet.

Top RPM is a nice number but not a needed number. Look at the difference between a diesel and a petrol car. Diesel has more toque but a lower top rpm. And it is just hou you gear them to get the max overall performance....

From a guy working at Novarossi in the time of the 359 I have heard that arround 48.000 was normal for the team engines

Yes I know rotation sometimes does not mean everything.
I understand what you're saying.

I still have not been able to find videos in this ATOMIC while idling and rolling on the track