Kyosho Evolva, 2003-2008 IFMAR World Champion [Archive]

StevePond

01-10-2006, 01:46 AM

The current '05 comes with a different front upper suspension mount, but it's also molded. There are optional aluminum mounts, but the molded part is standard. The rear suspension arms are attached to aluminum mounts, but the that's been the case for a while.

The Sirio WC is a refined version of what Lamberto Collari was using. I had the privilege of taking home one of the team engines after the race, and it's a pretty radical engine, but it was too much in my opinion. the induction port closed so far after TDC that fuel was spitting out of the carburetor and the exhaust duration was so long the engine didn't have very much bottom end. The new Sirio production versions are a better engine in my opinion because the timing events within the engine are as agressive as they can be without going so far that it begins to lose power again.

prophead

01-10-2006, 01:11 PM

..Thank you for the info. As far as you getting a hold of that engine...LUCKY!!! For the Layperson (such as myself), it seems better suited as a coversation piece for the coffee table.

I'm looking at getting back into 1/8 onroad. Do you know where I could read about a test on this particular engine (.21 WC that is).

Thanks again for the information.

-Steve

StevePond

01-10-2006, 04:26 PM

I dyno tested the production version of the Collari engine, which is made by Sirio, in a past issue of RC Nitro Magazine. I can't recall what issue it's in, but ask away, I'd be happy to tell you what I know.

prophead

01-10-2006, 04:43 PM

..Ok , here's why my wife gets pissed saying that I focus too much time on my hobbies vs. work.... I actually have a back issue of RC Nitro (May 05). It has the dyno test you did on that engine, 3.02 hp to be exact. But with that I realized we are talking about two different engines. You are referring to the WERKS .21 I'm looking at the blue-headed version, not the gold headed, WERKS model.

Any thoughts on this one?

Thanks again for the insight.

StevePond

01-10-2006, 07:18 PM

As I understand it, the Sirio blue head engine is built with the same specifications. I haven't personally measured the timing events and other particulars of the Sirio to be able to confirm this, but for the purposes of this discussion, these should be the same engine.

prophead

01-11-2006, 10:51 AM

..Thanks again!

StevePond

02-25-2006, 04:47 AM

Now that the "post ho" posts are gone, please let me know if I can help answer any questions.

ofnaravager9

02-25-2006, 10:42 AM

what other engines would work as well or better than a .21 sirio?
also ive heard about the rossi 159R21 LS1.
would that be any different?

thx for the help (ahead :) )

-luke ;)

StevePond

02-25-2006, 12:33 PM

The Sirio and Rossi are good choices, as are the Novarossi 3.5 Plus 21, JP, RB, and others. There are a lot of choices for engines to power these cars.

ofnaravager9

02-25-2006, 10:44 PM

The Sirio and Rossi are good choices, as are the Novarossi 3.5 Plus 21, JP, RB, and others. There are a lot of choices for engines to power these cars.

sweeeeeeet
thanx for ur help!

-luke ;)

Saboteur

02-27-2006, 10:11 PM

I personally would go with the RB C5. For the price that engine is a powerhouse and is a quite popular choice. Since you're new to 8th you gotta get the handling down. These cars are capable of turning at some really high speeds that sedans just can't do. Also consider prices for parts. Since you're starting out the OS VZr would be great, or the RB C4, or a stock JP .21 circuit. There's a lot to choose from, but don't jump the boat with a $500+ engine.

nitronutz

07-29-2006, 06:14 PM

I recently purchased a 2005 Evolva WC edition car and am debating which engine to put in it. Im leaning toward an RB for their ease of tuning, smooth response and awesome power. My only experience with Sirio engines have been difficulty in tuning from the .12 to the Sirio 27.

Have no experience with the Sirio .21 onroad engines though but I generally go with what championship racers use.. hence my interest in Sirio.

I have a NovaMega MS EVO5 in my Serpent 835 and I love it... but again no experience with Nova Mega or Novarossi .21 engines.

Any advice?

StevePond

08-01-2006, 04:03 PM

They're both good engines. I find that the RB and Novarossi engines have better bottom end and the Sirio engines have better top end. Sometimes one is more suited than the other depending on track conditions, but the right clutch and gearing set-up on either engine will get the job done on all types of tracks. The Novarossi based engines can use a clutch that engages a little earlier and can pull a taller gear. The Sirio engines prefer a tighter clutch for more punch, run well with a slightly shorter gear, and still has longer legs on the straight than any engine I've run. It's all a matter of preference, really. There are half a dozen engines that can win just about any race right out of the box.

nitronutz

08-01-2006, 10:42 PM

Thanks Steve thats the answer I was looking for. Im a novice when it comes to racing onroad 1/8 scale on a big track, although I have had years of 1/10 nitro medium size track experience. I guess I want an engine that will command the straightaways but still give me the throttle response in the turns ( i guess everybody wants that).

But I love speed so I think I will go with Sirio and dial down when I need to. I currently use Trinity Platinum fuel and Ive heard good things about Byron fuels, any recommendations?

StevePond

08-02-2006, 12:38 AM

You'd do fine with either of those fuels. I've been using Werks Racing fuel out here on the West Coast with a lot of success, but I don't know if it's available in your part of the world - try it if you can find it. The fuels you mentioned will certainly get the job done. Rocket Science might also be available in your area, about which I've heard good things as well.

nitronutz

08-02-2006, 12:07 PM

Thanks for the advice Steve and others... this hobby is so expensive that I want to do things right the first time.

I recently spoke to a racer who came in 2nd at the Roar Reg 9 Championships and he had good things to say about the new Ninja onroad 21 engines. Anybody have feedback on these engines? I know they are new on the market but they seem to have good reviews so far.

george524

09-22-2006, 10:24 AM

Is the Sirio .21 wc & wcr two different engines? and does anyone know the spec's on this engine. Any help would be appreciated!

StevePond

09-26-2006, 10:00 AM

I believe there is only one WC engine. You can find more information here: http://www.micromotori.com/

george524

09-29-2006, 10:35 AM

Hi Steve / All,

Thanks for you response. I managed to get on to the website and it was quite informative, with some interesting video's as well. One thing that was lacking though was the absence of any engine spec's, HP, torque, RPM, ect....
Does anyone know of any web-based review sites that have reviewed this engine (WCR) or any similar Sirio engine? I have googled it but cannot seem to find anything.

Also, this is probably some what of a hypothetical question but one I'm compelled to ask anyway, with good care what is the 'general' life expectancy of an engine (more specific a Sirio) I heard that around 8-10 liters (approx. 2 gallons) is about what you can expect, but I’m up to around 12 liters with my Sirio .21 PR and there still seems to be quite a bit of compression with no performance drop.
I know this engine (PR) is an ‘ABC’ and the WCR is a ‘AAC’ can I expect a much shorter life span with the WCR?

Thanks again for your time.

nitronutz

09-30-2006, 09:41 AM

Check the RCCaraction website and do a search on their articles... they normally do reviews on engines with dyno feedback too. As far as the AAC you have an aluminum piston and an aluminum sleeve. They both expand and contract with heat and cold at the same rate so your compression should last longer.

StevePond

09-30-2006, 02:32 PM

I don't suggest getting too concerned with specs. We've had the Sirio engines hit 48,000 rpm on the track, but it doesn't really mean anything. It's a high revving engine that probably runs better with a slightly higher ratio than other engines (maybe one tooth less on each clutch gear) but you can't learn that from manufacturers specs or a dyno sheet - you just have to go out and run it. Even with the same ratio, I think you find that it's smoother on the bottom end and faster on the top end than most other engines.

As for life expectancy, with proper tuning and care, the engine should last 6 or 7 gallons 22 to 26 liters.

slw4red

10-14-2006, 06:36 PM

Does anyone know where i can get some video of one of these?
Are they any good....
i'm after a wickedly fast parking lot basher....

Cheers

StevePond

10-14-2006, 06:46 PM

It's a back-to-back World Champion in on-road racing, so it's the best racing car available. But, it's a very expensive car and not intended for bashing.

slw4red

10-14-2006, 07:19 PM

It's a back-to-back World Champion in on-road racing, so it's the best racing car available. But, it's a very expensive car and not intended for bashing.

Man that make me want it even more, How durable are they like, if you look after it etc will it stay in shape or is it one of those cars you always need to buy something for from wear...
If it's anything like my other kyosho it should be great :)

or is there something similar not quite up to "that spec" that i should go look at,

Sonicpixy

10-19-2006, 09:45 PM

So that you can run it into a brick wall for an impact test? :D

ronestar

10-19-2006, 11:20 PM

Man that make me want it even more, How durable are they like, if you look after it etc will it stay in shape or is it one of those cars you always need to buy something for from wear...
If it's anything like my other kyosho it should be great :)

or is there something similar not quite up to "that spec" that i should go look at,

LOL , That's just funny for some reason. It's like the hillbilly who walks into the dealership and wants to buy a Ferrari to plough his field. :D Not that there's anything wrong with that.

Probably not the best use of your money , but hey who are we to tell you how to spend it. I actually know a few people who do bash 1/8 Racers , they just like the speed. These cars are very durable , and on a nice clean parking lot , they should run just fine. And yeah , if you plan to slam it into a wall , video it and post please! ;)

slw4red

10-20-2006, 06:16 AM

So that you can run it into a brick wall for an impact test? :D

No.... LOL
but my LST2 has ran into a rock the same size as it at full throttle and it split the rock the truck drove away fine.....

The reason i ask is, for the money it's worth. you would like to know its quality,
what i was asking is how well does it hold together (if you crash) and also general wear and tear etc "not impact testing LOL" just general parts like shocks, chassis etc

psiturbo

02-04-2007, 12:53 PM

Does anyone know where i can get some video of one of these?
Are they any good....
i'm after a wickedly fast parking lot basher....

Cheers

Evolva Video (http://www.youtube.com/watch?v=E3j0qjysK1s)

slw4red

02-06-2007, 08:18 PM

Evolva Video (http://www.youtube.com/watch?v=E3j0qjysK1s)

Cheers!!!!

wmay

11-13-2007, 02:20 PM

Is this thread still alive? Have two 05 evolvas and keen to get info on them.

StevePond

11-14-2007, 09:48 AM

Post away. ;)

wmay

11-14-2007, 11:55 AM

Just the answer I was looking for!

I have just come off Mugen`s and am shifting over to the Evolva`s, is there a diiference between the two cars in terms of handling especially?
We run a tight track looking at 15 to 17 second laps and needing some kind of ballpark to set my clutch and get my gearing correct.
From what I can gather it seems that yellow shoe, .7mm gap and .4mm float after you have shimmed the inside of the bell (from the engine nut) is standard with a super hard spring. Also I dont know nothing about the 3d clutches as I am the first guy to run the 05 at my track. But is this ok for getting the car to pull hard out of the tight stuff. I have seen the pros pull out of corners at awesome speed.
I run an old JP Pro 99 which I know absolutely nothing about, a 35+21, c5, picco G1, pretty old but is ok for practice.
And all the guys seem to run ultra hot plugs but I believe the colder plugs are better for the bigger motors?
Oh and the car, tips for setting it up for tight track.
www.brccc.co.za thats the track I run on if you interested to catch a peak.
Steve all the best and I hope this does not exhaust you to answer these questions :)

oldskoolrc2

11-15-2007, 03:09 PM

Wmay,

Maybe this can be of some help regarding your clutch. I have been running the black spring with grey shoe, 3D flyweights with holes drilled to 3.5mm.
From the end of the crank to the adjusting nut I measure anywhere from 10.0 mm to 10.3/.4. This seems to work well for most track setups. I run from .4 to .5 end bell play. Also, shim the bell just so it's not touching the shoe.

As far as difference between a Muge and Kyo, the Muge tends to rotate on power around the the front of the car. The Kyo pivots around the rear of the car. So yes, the cars have very different handling characteristics. As far as the setup you are looking for, I can give you my 05 setup but that may not be much help if you are using the 03 or 07 setup. Let me know what car your running and I will see what I can find out for you.

wmay

11-16-2007, 12:29 AM

oldskool thank you, I am running an 05 and actually taking it out today. and the .4 to .5 what does that actually do, does it give the car more or less punch. And are you enjoying your 05? They look way nicer on the eyes than the Mugens :) But I must say my Mugens were tough cars and can handle a beating.
What motors are you running.

All the best
Warren

oldskoolrc2

11-16-2007, 03:27 AM

Wmay,

No problem. The more clutch endbell play you have will give you more punch. I think it has more to do with clutch engagement timing. Fewer shims = higher RPM, clutch shoe to bell engagement. Higher RPM/powerband to clutch to drivetrain. But you can go to far with it. To much endbell play and the flyweights may come out. To much will also cause the clutch to slip more than it should.
As for the 05 car, it has a very broad setup sweetspot. At the moment I am using Novarossi based motors. Mainly the R1 version. That is just a stout motor. Say let me know how your testing went. Take care.

wmay

11-20-2007, 11:01 AM

Testing did not go as well as I hoped, it was a race day so did not have much time on the 05, but one thing I can say it feels more alive and responsive than the Mugen, and as crazy as it sounds it feels like the rear end does the work while the Mugen pulls more, interesting!!!! Will take it out in the next couple of weeks or so, but I stripped a second gear and found out that I had to pull the entire shaft out :( but stuck a screwdriver in the one end and saved me about 25 minutes which is not too bad. I ran the plus 21 in my Mugen with a .4 gap and the clutch was nice and snappy and ran cool throughout the weekend. What gearing should I shoot at with a: C5, plus 21 and a JP pro 99. Tempted to buy a R1 Nova, I heard they are a beast of a motor!
Man your input is making me quicker, especially the clutch stuff.

Take care

StevePond

11-20-2007, 01:35 PM

Thanks for the input OldSkool. I'm just sitting here watching. ;)

cam1n

11-02-2008, 11:15 AM