OS 12CV Hyper Nitro Engine Overview - HPI Tuned Pipe A950

Feel free to check out the other Adventures shown in this Video:
HPI Racing 15Fe - Hidden Boost Port Revealed - Shuwa Toki Nitro Engine Overview
• HPI Racing 15Fe - Hidd...
Extreme Nitro Sleeve Mod or Factory Made? Kyosho GX 12CR Nitro Mantis RC Engine
• Extreme Nitro Sleeve M...
HPI Nitro Star T-15 Teardown and Compare
• HPI Nitro Star T-15 Te...
Golden Lion SH18 - Nitro Engine Overview - Small Block ABC with Roto Start
• Golden Lion SH18 - Nit...
Also, Check out some of the Nitro friends shown in the vid:
Kings Racing
/ @kings-racing
nitrorc_and_electrics101
/ @that_nitro_bug
This is Advanced RC Adventures (A2RC)
- This is a channel where we investigate, explore, build, explain, upgrade and advance Nitro RCs to another level
- Come start a new adventure with me
#NitroIsTheBestGo
Vid made with Clipchamp (audio is not mine and is from the Free Clipchamp options)

[@hybrid32494]

WOW! love that engine! One of the rarest for sure! Glad you showed this to the world my dude!!

[@a2rc]

Thanks Hybrid 💯 She’s a bit more rare these days but, still a beauty ‼️ I always appreciate you for taking time to write and for watchn’ 🩷

[@TheNitroAddiction]

Hell yeah bro awesome adventure. Thanks for sharing 🔥🔥👊

[@a2rc]

Always happy to share and I’m really glad you enjoyed it 💯 Thanks for taking the time to write 🩷

[@ronfuller1256]

You have some of the best content in every video!

[@a2rc]

😮 Oh ‼️ That really means a lot. Very much appreciate it 🩷 Thank you for taking the write and for watchn’ 💯

[@hybrid32494]

totally agree!! This is always a perfect historical engine we all need to know about!

[@Hardy_boy1]

Excellent video! That engine is some serious eye candy! Thanks for sharing 👍🏻

[@a2rc]

Thank you very much 🩷 I’m happy to know you enjoyed it - I agree the engine looks great ‼️ Have you been able to drive one in the past? Thanks for taking the time to write and for watchn’ Boosted 💯

[@Hardy_boy1]

No, I have not ever had the pleasure of owning or running one of those engines.

[@That_Nitro_Bug]

Wow she's a beauty A2 😍 Thankyou so much for the shout out !!!

[@a2rc]

I’m happy to 🩷 and I always appreciate you watchn’ and taking the time to write. - I’m glad you enjoyed the engine and vid 💯

[@s.o.sSavage]

Thanks for this video A2 another engine I’ve never seen before but I have now so thanks. That is a beautiful cooling head on that engine imo. Thanks for sharing and departing your knowledge 👍

[@a2rc]

Always happy to share the adventure. It’s all apart of the fun ‼️ I glad you enjoyed the vid and thanks for taking the time to write 🩷

[@Chino-vn3ot]

Beautiful engine, another great informative video, I really appreciate the time you take to show the world your knowledge and your collection 👍🏽👍🏽 thanks for sharing

[@a2rc]

Thank you Chino 💯 I really appreciate that and I’m glad you enjoyed the vid 🩷 - You have an awesome collection and it takes time and effort to share it with us. Thank you for that It been awesome to see your 1/5s come out and play a bit‼️

[@CrazyDad226]

Late wooo. Here now. 👍always . Lets go. I am ready for the adventure.🔥💯✌️👍👊🏻

[@a2rc]

I appreciate you taking the adventure with me 💯 and for taking the time to write 🩷

[@gingerman6560]

Beautiful engine bud. Thanks for sharing

[@a2rc]

Thanks GingerMan 💯 I’m glad you enjoyed the vid and I’m always happy to share I always appreciate you watchn’ and taking the time to write 🩷

[@TastyBRC]

Very nice little OS. Basic but nice and vintage. Honestly.. I prefer that unique V shape blue head, I had a 15 cvx, that was my very first optional engine, I wish I still had that engine (and the car in wich it was installed 😅). The .12 red one was also very nice looking

[@a2rc]

Yep 100%. Pure vintage and more basic but, as you said, its a nice engine. - There are still some new old stock 15CVRs out there. Maybe pick one up and travel back in time with me lol As always, thank you for writing and for watchn’ Tasty 🩷

[@tonysands2837]

Thanks for sharing bro beautiful motor 🎉💯💯🇦🇺🤜

[@a2rc]

You are welcome Tony ‼️ I really appreciate you taking the time to watch and writing 🩷 - I’m glad you enjoyed the vid

[@tonycatalfamo9706]

Great video Great engine

[@a2rc]

Thanks Tony 🩷 I really appreciate you taking the time to write and for watchn’ 💯

[@richardbrown6762]

I like your header and pipe they work good I've used that combination before 😎👍

[@a2rc]

Yep, The 940/950 combo is perfect for these 12CVs and similar engines. Port matching the header helps a little bit with .15/.18s - If you have a new or vintage build, these are a nice setup for sure What Car/Truck did you have have this pipe on before? - As always, I appreciate you watchn' Richard 💜

[@richardbrown6762]

@@a2rc I used that pipe and header on my rs4 belt drive with my 15 fe and it ran good

[@a2rc]

@@richardbrown6762 That’s and awesome pipe for that engine 💯

[@rcsendandblast1579]

Tephlon pucks bro. ❤🙏☺️ Ohhh this makes me drool and go look at my OS 12 cv rtr engine. Mine has the red coloured square head 👊😎

[@a2rc]

Thanks for watchn’ RCSend 🩷 - I’m glad you liked the vid and yeah, I’ll go check out your engine 💯

[@allaspectsrc4178]

That is a beautiful engine

[@a2rc]

100% agree. I appreciate you writing and for watchn’ AllAspects 🩷

[@tedspurgeon6658]

Great video! They are nice little engines

[@a2rc]

Thanks Ted. I really appreciate you watchn’ 🩷 - I agree they are nice engines. Do you own or did you run this specific version or something similar?

[@tedspurgeon6658]

@a2rc yes sir I have few years back my brother had one with the blue head and one with the gold head. He has a rc shop . We did a lot in vintage rc

[@tedspurgeon6658]

We still do lol love them

[@a2rc]

@@tedspurgeon6658 That is awesome for him to owned/owns a RC shop. Do they still support Nitros? A lot of current brick and mortar shops don’t unfortunately

[@tedspurgeon6658]

@a2rc yes we support nitro I work at his shop. I do the nitro part he does the battery part. We buy fix and sell all rc. I only like nitro lol!

[@David-069]

Love the hyper edition the billet head definitely makes the cv run cooler and sound slightly different over the stock cv cast head. Did you know there was a abc upgrade piston and sleeve with rod kit made for the duratrax 12pd engine but it fitted the os max 12cv

[@a2rc]

Honestly David, I didn’t know that! That’s really good info and appreciate you letting me know. - I agree the Hypers where well worth the extra expense. Plus they are a bit better lookn’ As always, thank you for taking the time to write David 🩷 I always love to learn and share. Thanks for watchn’ 💯

[@Nitro_rc_life]

Nice looks good

[@a2rc]

Thanks NitroRcLife 💯 - Do you happen to have this engine too? Thanks for watchn’ 🩷

[@Robrismo-rc]

😍😍😍

[@a2rc]

Thanks for Watchn’ Rob 🩷

[@joedoran6994]

I have one of 2 these it’s not new but they work also one has an o donnel racing head an the other has the gold hyper both non pull start love em great engines I don’t use them as much anymore though too keep them in good condition one of the carbs has different adjustment on the low speed instead of just being a screw it’s got a metal spring sorta thing around it so you can adjust the low speed in small intervals gives it a click sorta feel per turn if that makes sense reslly helps with fine tuning the low speed

[@a2rc]

Oh yeah, I definitely know what you mean about the “clicking”. OS, for some reason, made a couple changes/revisions of the carbs along the way - It’s awesome that you have two of these engines. Both 12s or are they 15s? What car/truck are they in? - Clean them up and run a bit, as you know they are fun to drive 🩷 I appreciate you taking the time to write and great message. Love it ‼️

[@thebug4046]

They could have done better with opening a spot in the block for the boost port making it a real 3 port. and ABC sleeve with a oil grove in the top few MM of piston. The pipe kit actually runs quite well. It was definitely a nice upgrade on the old 15FE engines. And with the fuels go 8% oil bump it to 12% with blendzall green label castor oil definitely helped the old ABN stuff live a long time 😎🍻🤘🏻

[@a2rc]

I agree Bug 💯 The engine design could have been a bit better but, they still perform pretty well for what they are. I have been surprised at performance the all blue RS4s build (everyone will see that project on some future Adventures) that has the blue 15CV Hyper w/O’Donnell Head - Like everything, a little care and some maintenance can allow for these old ABNs to last a long time. Unfortunately, we know that the majority of folks that ran these engine back in the day, just didn’t know what was needed and destroyed them quickly. I really enjoy talking, showing and sharing these vintage engines with the RC community. It helps to keep their history alive. I am sure you feel the same I appreciate you taking the time to write and for watchn’ 🩷 I always enjoy watching your adventures too

[@thebug4046]

@@a2rc absolutely man! They were and still are very reliable engines and Kinda good all around performance. There was a company that made an ABC kit for them as well I can't remember the brand though

[@lyubennyagulov9012]

Thanks for the interesting video! Great looking engine! Are all the OS CV engines (12 and 15) ABN construction? As I remember the CVR's are with ABC. If you compare ABN with ABC what are the advantages and disadvatnages of both in your opinion?

[@a2rc]

Hey and thanks for the question (a great one)! - OS made a mix of engine styles with both ABN and ABC. You are right, the CV-Rs do have ABC construction. They do have their differences, ABNs generally have thicker sleeves to help compensate for the nickel plating (which is not as hard as chrome). It is also less expensive to nickel plate a sleeve. - The ABCs that have chrome plating, last much longer, the sleeve is normally lighter weight, generally can with stand higher temperatures and lower oil concentrations but, it is more expensive to manufacture. When you compare the two styles, higher performing and reving engines will be chrome plated I hope that helps a bit and as always, I appreciate you watchn’ 🩷

[@lyubennyagulov9012]

@@a2rc Thank you very much for the clarification! It would be very exciting to see a future video, dedicated on breaking in procedures! I'м very curious to see how you perform it! I've seen videos on youtube how people don't stop their engines during the heatcykles, just cooling them down with compressed air and having them running during the whole process (to avoid the cold start). What is your opinion on that?

[@a2rc]

@@lyubennyagulov9012 umm well, I personably wouldn’t suggest that…. Break-ins are/seem to be very subjective but, I have been performing my break-ins the same way for 25+ years now. I seem to have pretty good success so far. A good example is the 15CV-R I have shown on a few vids Heat cycles, lube and a slower approach is what I suggest. Yes, you can “break-in” a sleeve “faster” but, that doesn’t always result in a longer life (if that makes sense). I treat mine more like an oil bath It is a good video topic and will definitely consider it for a future vid.

[@n00b247]

This one looks really really expensive.

[@a2rc]

They can be a bit pricy these days, if you can find them but, always worth it Thanks for watchn’ 🩷

[@electricnitrorc]

Nice video 🙂 how would you say the high end .12 engines can hold up to a cheap. 18. Considering buying a quality .12 engine to replace my VX18 in my HSP Backwash. It's pretty hard to find .18 engines these days.

[@a2rc]

I appreciate you watch’ 🩷 and taking the time to write One of the best quality and best price for an 18s right now, is the HPI T3.0 and/or G3.0 (depending on what crank shaft and backplate style you need). They are a billion times better than the VX engines - You can go with a higher performance 12 if you would like. Just depends on what you are trying to accomplish with the buggy. You can always go vintage too. OS 18CVR for example. - Let me know what you end up deciding 💯

[@electricnitrorc]

@a2rc The HPI G3.0 and T3.0 are great engines, but use SG shaft instead of OS shaft. Is it possible to make it work? Thanks for your detailed response, which is much appreciated 🙂

[@a2rc]

@@electricnitrorc The G3.0 is a SG and T3.0 is a standard shaft engine. Which one does your current engine have ?

[@electricnitrorc]

@a2rc It's the short one. Standard I believe 🙂

[@a2rc]

@@electricnitrorc Ok then, the T3.0 should work out. You may just need to use/reuse your engine mounts

[@tonycatalfamo9706]

Have you heard about a dynamite Paris conversion for the os max .12 cv

[@a2rc]

I have heard about the kit which, came out back on the day. Ron Paris worked with a number of companies. He developed a few innovative things along the way. - I think that’s the kit that had the dished piston, head, shims and maybe a crank (not sure). What I don’t know, is if it actually helped things out or not? Its a super interesting topic and vintage parts though. - Do you happen to have a kit or an engine with the conversion?

[@tonycatalfamo9706]

@@a2rc I do have one I took the os .12 cv I look and I said this is not os parts come to find out after some research it's a Ron Paris with the dish piston and different crank I don't think it was run much it all

[@tonycatalfamo9706]

Send me your email if you can I will send you some pics

[@a2rc]

@@tonycatalfamo9706 That’s pretty cool that you have one ‼️ Nice work

[@tonycatalfamo9706]

@@a2rc I would like to install the engine mybe on an rs4 would I aft to cut the crankshaft I have motor mounts for the rs4 I have all models od the rs4s