I just ordered a evo 58 and am curious what drill guide it uses? 3W, ZDZ, DA, or another. also any ideas on breakin prop and a good 3D prop.

It has the same pattern as a ZDZ 40-60. You can get a drill jig from RC Showcase. I'm using a 24x10 on mine which should be good for 3D and breaking it in. It also depends on what kind of muffler set up you have.

The engine comes with a dril jig. It is the prop pressure plate and the second distance plate. What more do you need?

If you don't use the second distance plate, will it mess anything up?

I have not received it yet...forgive my ignorance. horizon does not give allot of info about it on-line and I probably wont use the parts that come with the engine I'm a little nervous about drilling through them and then using them on my plane, and I already have a drill jig for a ZDZ. I ordered a bisson pitts muffler for it, I almost ordered the can but I didn't want to add any more weight than necessary.

The extra power you'll get from using the can vs. the Bisson will more than offset the extra weight.

The second plate can be used as distance plate to move the prop 5mm further away from the engine. The pressure surface is smaller without it, so in wooden props the prop driver leaves a clear indentation on (in?) the prop hub.
This need not be bad, as it serves to secure the prop to the hub in torsion, and thus relieves the M5 bolts of any bending stresses.

Well, I have a spinner on my plane, so my prop isn't against the prop driver. I didn't think it wouldn't hurt anything, but I just wanted to be sure before a major failure. Thanks preivers.

hey grey hound man,

i have used a 3w 24 x 10 wooden prop and found it to be a good size for this engine!

i use a da 100 drill jig and it is worth its weight in gold. it takes about 90 seconds to do a prop and fits perfectly everytime.

i have never had a problem with my 58 and for a single it isnt that vibey.


good luck with your engine and i hope it serves you like mine has.


aerowiz

Greyhound,


This engine is an MVVS 58 cc, produced by MVVS for Horizon Hobbies, to be marketed under the EVO name-plate.

I market MVVS in my country and another dealer does the same for EVO.

I am told the EVO uses the single magnet ignition, where the MVVS uses the newer dual-magnet unit, but I have not yet seen one, so I cannot be sure.

The Evolution has dual magnet. There are two little round magnets opposite of each other on the prop drive shaft.

Thank you, Ben, for clearing this up.

I get some dis-information sometimes.

Yeah, I hear about all these things that are apparently different between the two, but a lot of the stuff that would matter performance wise is false. The reason why I bought an Evolution instead of an MVVS is price. The MVVS I would have to get from Canada which means I'd be charged a fee for the exchange rate on my credit card. Plus it was easier since the guy I bought the plane from carried the Evolution motor.

Ben,


Horizon/EVO apparently does not carry (an equivalent of) the MVVS #3204 canister silencer + #3202/P/B headers, which are the best exhaust systems for this engine. You will have to get them from an MVVS dealer, or performance (not only) will not be the same.

I see this in Israel quite frequently.... People buying the EVO for a few bucks less and then coming to me for the good, long-life exhaust system, to replace the 'break-off', power-robbing, junk exhaust they got with it...

Which piece of dreck would that be?
.
It would not be a muffler from Czech mfgr ?

Dick,


It is not a 'country of origin' issue. The MVVS #3204 canister silencer + #3202/P/B headers were 'designed' for this engine.

MVVS also make a header to use the JMB 80 muffler, which is acceptable for this engine.
It is mufflers made for engines of similar 'displacement' and 'adapted' to fit the MVVS 58 cc that rob power.

It is bad initial design that causes breakage from vibration...

And those 'impostors' are definitely dreck. I will find a name, or two.

whats this from Horizon?

And this from an Mvvs dealer looks the same?

Well, there's a learning curve...

When the EVOs were introduced, the MVVS muffler was not available from Horizon...

hehe..sorry I noticed that the other day, Now I didnt say they have them yet and I havent asked them a technical question!

Let's cut through the BS
The Evolution (not EVO) is made at the facility where MVVS products are made .
To pretend otherwise is just silly.
Horizon however is the interface/market arm for the Evolution brand.
That is the real difference .
This type merchandising is so common that many do not even realize their cherished new automobile is likely not even engineered by the basic brand name group- -- many Fords are basically Volvos and Mazdas.
The GeoPrizm was a Toyota thru and thru
The poor mufflers referred to- are likely made in North America. This is a very sad state of affairs -in my book - because these mufflers are for the North American market and should be the best adaptation ,not the worst.
Some of the muffler guys are really busting their balls to make a product which will do the job in the best (although power compromised) method.
Some tho --------are really. POS .
My own choice is for best power setup and I adapt the engine muffler to the airframe
I used to stuff Chevs in Austin Healeys . That took some planning . this stuff is really very simple. I am amazed at the reluctance to adapt even the most simple devices.

guys,

i get 6500 rpms with a 3w prop 24 x 10 and a modified da 50 slimline muffler which is compact and robust. the modification took ten minutes after i had one hole tig welded. the slimline cost me 89 dollars yank and i am glad i went down this route. i 've had so much trouble free flying with this setup i feel like im ripping someone off.


manifolds, springs, adaptors and cans add to the complextiy and are something else to go wrong. plus they add weight.

i bought the evo because when i wanted to buy an mvvs 58 they were out of stock. i 've had excellent service with horizon as well.


aerowiz

It seems there is now a new version of the MVVS 58 out called the "PROsport".

new MVVS 58 IRS PROsport
based on the 58 IRS above - but adding new features;
* heavy duty bearings
* titanium prop shaft/bolt
* redesigned crankshaft, internal 'liner'
porting and piston
* compact carb trumpet

boosting performance to an amazing 8BHP (@ 6000 rpm)

It has been there for quite a while.
The listing of differences is not complete, so have a look at [link=http://mvvs.nl/MVVS/main_bestanden/petrol.htm]http://mvvs.nl/MVVS/main_bestanden/petrol.htm[/link]

So what weight is the PROsport? Are they going to make a 58 with a magnesium crankcase?

A