NEW 36cc Double Ring Baja Motor from Rovan Sports │ 2-Stroke

We get to install and test the new 36cc Double Ring Motor from Rovan Sports/Rofun Racing into a King Motor Baja 5B.
Lots of trial and error, but we managed to get a feel for the motor.
#baja5b #rovansports #ezr

[@jayinman7379]

First of all..2 ring piston dosnt necessarily give u more compression..it however gives the engine longer compression life..and has it occurred to anyone that during all his testing he actually broke the engine in to where the piston rings are seated against the cylinder wall and that's why it's running properly? My 36cc did same thing after I got a few tanks of fuel in it..she came alive

[@charliebrown238]

umm ... no. It is not possible that an engine can just "break in" in a sudden split second. Rovans 36cc motors have nearly a 2mm squish, its a design flaw, there are many videos and forum talk about the matter. ... not only can you remove the gasket, you can also shave the case to close the squish even more. If anyone has a 36cc Rovan motor and does not remove the gasket at a bare minimum ... your engine will never make good power ... "Like it should"

[@rubenreyes1360]

So it not worth it the two ring

[@EZR]

We have done quite a bit more research on these 36s and there is a short update coming soon. Hopefully uploading in the next few weeks.

[@GroundControl204]

Very cool channel, and I really like your build shop. I’m new to this but I myself have the Rovan 5B buggy, it’s a lot of fun to run these RC cars. 🤘🏻

[@EZR]

Thanks man, hoping to kick out more soon. Running the hobby shop has kept us busy as the hobby is growing big here.

[@richardwinsonRC]

Worked your magic on that dude! Went and sounded loads better! New subscriber from uk 🇬🇧

[@EZR]

Legend! That is awesome news dude! Thank you so much for the Support 💪🏼

[@shaneb6136]

Im getting the new rovan 36cc single ring, do you think it will have the same problem? Thanks

[@EZR]

Yes. Motor wont be horrible. Here is my easy, cheap recommendation. Dont use the 1191 Carb from Rovan. Use the Walbro 668/997. Then take off the head and remove the gasket. Also take some 500 sand paper and go over all the sharp edges of the ports. In, out and transfer. All the places where the piston can get scratched, but DO NOT scratch the sleeve itself. put togethe and you should have a good strong reliable motor.

[@shaneb6136]

Ok thanks I'll do that when it arrives 👍

[@leewilson229]

You shouldn’t have to pull a brand new motor apart to get it to go properly, Rovan obviously don’t know what there doing.

[@EZR]

I agree. But that is why they are dirt cheap. Most dudes will rather buy whats affordable and do the labour to get it smooth. But for those who can afford a Zenoah it's worth it.

[@RcDungeon]

Very nice work!! Considering getting the dual ring 36cc but been hearing it lacks the power the single had.

[@EZR]

Stick to single rings.

[@wolfen7577]

No cylinder head gasket? Seriously..

[@EZR]

Yup. We do it all the time

[@breakalegfpv9532]

I have a hard time believing this. I think he swapped out the diff or spur tooth change?

[@EZR]

Something changed when we removed the gasket and put all together again. Some believe it was coil gap/setting.

[@patrickfrensdorff7485]

bigger cc needs a bigger carb...

[@EZR]

I've had some bad luck with the bigger carbs. My favorite carb is the 813/990. Even tested on the 45cc

[@JOHND_RC]

Nice work !! Like to see people that are not scared to get dirty and rip it a part and try stuff 💪🏻🔥👍🏼🔧⚙️

[@EZR]

Thanks man! We have had our share of mistakes and losses, but thats how you learn. Get in there!

[@JOHND_RC]

@@EZR 💯🔧👊🏼🔥👍🏼

[@PadrinoRc]

What Octane Fuel are U running??? Running most my motors on 110octane and HUGE diff from 87-93 pump gas

[@EZR]

We run 93 or 95. Difficult to get 100+ here.

[@trevathan187]

@@EZR look in to geting your self the VP racing fuel

[@bassheadlife492]

What engine are you running with the 110 gas?

[@TrooperManaic]

Does the 36cc use the G320RC crankcase?

[@EZR]

Yes

[@kerryfilgasjr5757]

If you take the bottom ring out it runs much stronger have you done this yet after 3 years?

[@EZR]

Good day. I have done it yes. I didn't see a noticeable change in power, but wondering what the difference in ring/sleeve wear will be over say 10tanks of fuel. I didnt get a chance to run that engine enough to make a assessment. I only ran one tank through it then sold it last year.

[@kerryfilgasjr5757]

@@EZR I let you know. I will respond back when I have 10-12 tanks through it then I’ll take it apart and compare results.

[@marcusmaltby5693]

What was the squish gap before you dropped the head? Good video by the way 👍

[@EZR]

Hi Marcus, sorry man I didn't manage to check. Just ripped it open. Thanks for the thumbs up.

[@raulofalltrades5023]

A simple gasket removal unleashed the beast! Nice video and informative

[@EZR]

Thanks man. I think it might be wise to strip any Rovan motor straight off the bat. Better results and less Wrench time

[@krpyojmt2942]

Doble ring more torque, low final velocity

[@EZR]

Yeah, we have been running a few double and single and seems the single comes out on top more.

[@sandjunky3650]

so whats your 2cents on the carb that it came with ? can it be used after dropping the head ? glad i found your channel i am about to get the 36cc myself

[@EZR]

So here's the deal with the 1191 carb from Rovan... DON'T Get It! From the 10x we have received only 4x worked properly. Best performance carb we've received is the 813/998 carb from Rovan or the reliable 668 Japan. All our motors will come with the 668 from now on.

[@sandjunky3650]

@@EZR copy that

[@mgtsxgang2039]

And how much for porting a motor

[@EZR]

We are porting by pros now in SA for $100

[@charliebrown238]

Hey Mr Ez Trade Racer ... got a ? for you ... do you happen to know if Rovans 32cc motor is the same as the Zenoah G320 ? As in its a clone? And parts can be swapped from each other? Reason I ask is ... I have a OBR 32 V2 Reed Case (bare bottom end) and want to know if the Rovan 32cc crank, piston, and top end will bolt on / in?

[@EZR]

Good Day Charlie. Thank you for the question. Yes they are the same. We use their parts interchangeably. There are snag points here and there like sometimes the cylinder struggles to fit the case perfect but a quick trip with the Dremel sorts it, without performance loss.

[@charliebrown238]

@@EZR WoW! I cant believe im actually talking to the man himself! LoL! And just as I expected, there isnt much that you dont know! Cheers for the detailed reply, also ... when can we be expecting more great content? Its been a LONG time since ive had your name pop up ... i need my Ezeetrade fix! HaHa!

[@EZR]

@@charliebrown238 Thanks man. We are working on a awesome lineup. Been through some tough times with our store since lockdown, but we are over the worst. Our next video is going to be a Big Thank you for us hitting 2000 Subs. We looking forward to shooting it.

[@charliebrown238]

@@EZR Yah I was just looking at how close you guys are to 2k subs! Congratz! and Hey! I just seen you guys have a website! Awesome! Do you guys offer international shipping? Australia here :) Might have to order a few things to do my part to help out, coz I refuse to see Ezeetrade not be around for us all! Cheers again mate!

[@EZR]

@@charliebrown238 thanks for the support man. As long as we have you here on YT it means a lot to us. Just keep liking and sharing and the content will grow.

[@victoradriansyah]

Do You have video when removing the head gasket?

[@EZR]

Hi, I believe the one video I have of converting a 4bolt 29cc I might show and explain more about it. I'll see if I can share the link

[@EZR]

kzbin.info/www/bejne/a3rQeKKGjL6Cbacsi=ZOqlIaY2xVDRY_eC

[@trevathan187]

your right about the pipe holding the motor back

[@EZR]

Need a nice bigbore.

[@landmark4928]

Thanks much very so.

[@EZR]

Thank You, Big stuff coming.

[@2gaconcept568]

Hello, this motor is better to 45cc?

[@EZR]

Good Day. Yes it is. The 45 has more torque but no RPMs. The 45 has vibrating issues and cant run for long before it over heats. In my recent experience the single ring 36 has been outperforming the double ring 36.

[@2gaconcept568]

@@EZR thank you , what you think fuelie 38cc or zenoah g320, what is better? my rovan 45cc is dead...

[@rynohoffmann]

G320 👍🏼

[@2gaconcept568]

@@rynohoffmann really? for what please.

[@EZR]

Yes, G320 is the best choice. Better balanced motor and cheaper maintenance parts.... Also depending on your supplier. But in our experience the G320 is the best out the box play motor that is reliable and has plenty of Power for your 💲

[@djcin1000]

PIPE OUTLET TO SMALL

[@EZR]

Will definitely do good with some porting. Whats nice is seeing the difference between stock and ported.

[@stephenmischkot8446]

Man I bought a Rovan BLT. That 36cc had me fuming. Very sluggish and tuning makes zero difference. Very happy to have found your video, thanks bro!

[@EZR]

Woopwoop pleasure bud. There's another video about how we deck the cylinder. MASSIVE difference in power.

[@rayseal1099]

Rovan have always been shit motors. Cy or zen are just better quality. Rovan fan shrould always crack or cases

[@EZR]

True - It is a bit spit and stick, but out here in South Africa the RC Import prices are absolutely crazy and Rovan is what most can afford. We try to make them as reliable as possible for our Customers

[@ronaldwitt2533]

Has of today has rovan fixed the performance issue. Because i just got one

[@EZR]

There is a new Gen2 Double Ring Engine that is not bad at all. We still deck our custom cylinders as the performance gains are very high.

[@AskLeRoy]

So you are saying to remove .7mm from the bottom of the cylinder head? So that's .027 ? Just got this motor and want to button it up before I install it on a project

[@EZR]

Good day Leroy. If you want to push it harder you can even take 1mm off the bottom deck. Huge improvement.

[@meanf1502]

I heard that roven was using a double gasket on the head did that to mine an left the stock carb on it now the thing kills xmaxx like nothing an I have the trophy truck that is a bit heavier

[@EZR]

Super Chevy we are so glad to hear that! Keep ripping it up!

[@kimdra9321]

WoooW very nice amigo

[@EZR]

Thanks bud

[@shahrulhamzah4209]

Waw

[@EZR]

Thanks man

[@Imperial_Wing]

15:35

[@EZR]

Do I sound Funny? :-D

[@Imperial_Wing]

@@EZR lol yeah, I missed the videos man, greetings from San Tassinari

[@seyed7705]

Where would be the best place to purchase this rovan 36cc ?

[@EZR]

Dont - Hahahaha. I recommend the 32 rather and then upon arrival remove the head gasket. If you are in South Africa we can give you a strong 36cc.

[@jesseistre5832]

Mine was doing that brand new turns out faulty coil

[@EZR]

Eish! Glad you got it sorted

[@outcastsilviablue3211]

That 23cc ran better than the 36cc, people get get caught up in how big the motor is., All the 23 knee is a porta head and a good carb. Could out run that 36cc all day

[@EZR]

We have actually been experimenting with the smaller motors a lot and have found the same. Bigger motors have more torque for the first 10m, but after that the smaller ones out run them.

[@badcommentbot8349]

I like high rpm 🤣😂😃🧐🤩🥖🤴😬😬

[@paintendaveextremecollisio8057]

Great Video 👍. You just used gasket maker on its own? Correct? Thanks

[@EZR]

Yes that is it. BUT we believe it was also the Carb. The 1107 we've been getting from US & China had a bad batch. The 668/997 we stuck on here did make a visible difference. But for the most part this engine has way too much space ontop of the piston out the box.

I have a 30cc engine with one ring in my buggy. Will this 36cc Two rings be a lot stronger than my 30cc?

[@Imperial_Wing]

No

[@EZR]

Radical RC is correct. No. Unless it gets worked on.

[@flyingrc2041]

That 36cc is slow!! No pick up down low

[@EZR]

Could be better. Aggreed. Check out our new modified 36s coming soon.

[@rayseal1099]

The pipe is one off the best out there. Leaves the cpi for shit.

[@EZR]

We absolutely love these pipes. KM Ruler - Dominator Shorty Out performs most expensive pipes!

[@немой-ы6п]

Два кольца на поршне создают дополнительное трение от этого снижается частота вращения коленвала. Это значет что к вашей модели теперь можно прицепить прицеп но поедет она медленней чем с одним поршневые кольцом.

[@EZR]

ы прав. Теперь мы предлагаем этот движок в качестве опции и предоставляем нашим клиентам информацию, которую они могут решить.

[@Imperial_Wing]

Hey are you done with KZbin?

[@EZR]

Howzit. So sorry for our distance from KZbin. We had to move shop and provinces these last few months. We will be getting back into it as soon as possible.

[@bobble1476]

I've just changed my dominater style exhaust for a twin exhaust system and its hard to get started now do you have any suggestions cheers bob with the old exhaust it started on 2nd or 3rd pull

[@EZR]

Haven't really come across this problem. Was anything else dismantled or taken off other than the exhaust? All that I can think is that the Dominator gives more back pressure and could help get a motor with a worn ring going easier. My first check would be ring wear. Easy cheap job. The problem is not the exhaust.

[@bobble1476]

@@EZR hi thanks for getting back to me so quickly no I replaced the exhaust and changed the rear bumper for a larger bumper to help protect the exhaust and now its difficult to get the car started I haven't changed anything

[@EZR]

@@bobble1476 I still believe it's motor related. Just died at that exact moment. Can't be the exhaust.

[@texashardhead6987]

Sir is this mod as easy as you say it is?I have a couple of motors a 36cc double ring,a 2 bolt main ? Rovan is all i know and it's has a stroker crank or something like that.I bought it second hand.

[@EZR]

36cc has a compression problem. Without the right tools you will struggle to get the right squish. We machine the deck to fix it. We have to do this on all Rovan motors. We are trying to get them to fix it at the factory.

[@victoradriansyah]

​@@EZRso you still have to machined something instead just strip its gasket?

[@EZR]

Good day. Yes the 36 out the box has a 1mm+ squish. Very poor compression. Removing the gasket will help and make it playable but to unlock its wheel popping potential you must Deck the cylinder.

[@nakkie1616]

How to you measure the squash?

[@EZR]

A van Zyl we have 2x ways of doing it. One is with solder wire which gets stuck down the plug hole and then turning the motor over and then other is an actual squish measuring tool that we get from Daves

[@stickman8912]

What carb did you put on itb

[@EZR]

The one we swopped was a Chinese Walbro 668/997

[@fpvandgasrc4321]

i got the chromed 36cc dual piston ring on my rovan lt and it has plenty of power... can you do this to any 36cc or just all the dual ring 36cc?

[@EZR]

Almost any Rovan motor can be dropped. Not the best of manufacturing, but with some help I have created some powerful motors. My favorite at the moment is sticking a 32cc Head and Piston on a 36cc Bottom. Massive Power.

[@fpvandgasrc4321]

@@EZR yea i understand its a cheap ass motor.. but my 36cc baja ripps.. and there cheap as hell.. is there anything i should look for when trying to remove the gasket..i think im going to buy a spare motor and just mess with it

[@alcarr2934]

@@EZR I would really like to see a video of this!

[@alcarr2934]

more specifically a video of you installing a 32cc head on a 36cc engine. Thanks!

[@jacopienaar9157]

hey haz this problem been sorted out at the factory?

[@EZR]

Good Day.... Sadly no. Our store has now got a machining factory that cuts 0.7mm off the deck(bottom) of the head to increase the squish. Big difference. Rovan 360 - FIXED

[@alcarr2934]

@@EZR I have removed the head gasket off of my 36cc single ring, what a difference! great results! I'm going to have the deck milled .7 mm. do you use stock Rovan gaskets after? or ? Thanks so much for this Video! it's been a lot of HELP!

[@mgtsxgang2039]

Do you have TikTok

[@EZR]

Unfortunately not

[@takuache4692]

@@EZRso are you saying remove the gasket and then put gasket maker/sealant without a gasket?

[@johntejeiro5308]

What pipe?

[@takuache4692]

Dominator style

[@EZR]

The pipe on this car is a King Motor Ruler Pipe. One of my favorites. We sell tons of them.

[@jacksonbaby2437]

Молодчик 👍😉

[@EZR]

Thanks man

[@ASmallPoop]

Awesome video and very informative!

[@EZR]

Glad you liked it! Thank you so much for the feedback!

[@badcommentbot8349]

Double rings wear cylinder out twice as fast ⏩⏩⏩

[@EZR]

Maybe Rovan was hoping they would last twice as long 😂