Hi everybody.I have a Evo3 Sti and ı m trying to find true hp of this engine ı didnt see anywhere.Do you know Sti power?

Maybe this help you..

http://www.kyoshoamerica.com/sirio/S12T3ISTI.asp

S12T3ISTI is the 2004-05 IFMAR World Champion with over half the final running Sirio engines. Sirio also poweredThis .12 is by far the fastest on the market!

Regards,

Nick

Thak you very much Nick but ı already know that specifications and web site.I need exact hp number of Evo3 Sti.(1.5,1.6,1.65) which one is true ı wanna learn that.Thanks again for your help.

Until someone runs it on a dynometer, you won't know the true HP of the engine.

This chart will give you a very general idea of where it might be in the pecking order, based on the Murnan modified Evo3 - but where the STI really falls is unknown. http://www.nitrokb.com/engines/chart3.jpg

Hey Grinder ~ Do you think a stock STI has more horses than your Mod Evo3??

This chart looks like very low.Murnan mod sirio only 1.10hp?

Original data can be found here in the engine database section:
http://www.nitrodynesystems.com

I am really suprised the low hp's.For example O.S 12tz speed tune says 1.65 hp but charts shows 1.1 hp how is it happen?

Most people say that manufacturer's numbers are inflated, but I cannot personally attest to that statement. NitroDyne Systems is owned by mxwrench - and if you notice the logo on the Dynometer - it's XTreme RC Cars'.

.1mm difference from .5mm less travel on clutch shoe engagement you will see your shoe glaze up pretty quick & wear out faster

Clutch gap is the amount that the clutch shoe moves before it contacts the clutch housing; this affects the WAY that the clutch engages more so than WHEN it engages.

· Larger clutch gap: Causes a harder, more sudden engagement. Better on a wider track or a track with high traction. A larger clutch gap puts excess stress on the clutch components, especially the thrust bearing.
· Smaller clutch gap: Gives a softer engagement, and smoother acceleration. Better on a tighter track or a track with low traction. A smaller clutch gap may result in engine bogging and premature clutch shoe wear.
If you change the clutch gap to a larger or smaller value (by adjusting the shimming), you must compensate by adjusting the tension on the main clutch tension spring.

AFM

This is the explanation given by the Dyno Manufacturer

X-Dyno Horsepower vs. Claimed Horsepower

You may have noticed that X-Dyno power data doesn’t always match up with manufacturers’ claimed horsepower and torque figures. We attribute this discrepancy to the fact that many manufacturers publish theoretical horsepower and torque figures based on rough estimates rather than actual dyno data, or that a manufacturer’s data collection protocol doesn’t match our own. The X-Dyno calculates horsepower using known mathematical formulas and precise physical data measurement.

This means that since there is no RC Industry Standards for measuring Hp and torque figures, which are affected by ambient conditions (temp, humidity, air density, altitude, air vapor etc. etc.), you have to use a correction factor like for example SAE JI349 relative Hp factor.

Although the X-Dyno’s power numbers may not equal the numbers you’re accustomed to seeing, the figures they provide are accurate from engine to engine, and are directly comparable with power data from test to test. All engines are tested equal using correction factors, so it is a reliable source for comparing engines.

AFM

Ok thank you very much for your explenition

anyone got a release date on the new .21 on-road sti?

Finally ran the .12 Evo3 STI today and even though I still had it running rich, it was silky smooth and very fast. I was running it with the Novarossi pipe and it spooled up really nicely. This is probably the best engine I've ever had in my car. Two more rich tanks and I can start leaning it.

Dear All,

- After how many lt you change the rear bearing from .12, .21 On Road and .21 Off Road Sirio Engines?
.12 Sirio Evo 3(& STI)
.21 PR Pro & WCR(&STI if you know0
.21 Kanai(&STI)
- And the Conrod?

P.S.
I change mine PR Pro rear bearing every 4 lt of 25% Kyosho Fuel.
The conrod every 8lt

Thanks in advance.
Nick