RX8 Hybrid Multiport Motor update Build Video 2 - Porting Options, answering questions & what's next
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- čas přidán 7. 01. 2022
- KMR 13B Hybrid Renesis Build Series - VIDEO 2
www.kylemohanracing.com
Hybrid Renesis
Build video 1
• Building a Hybrid Rene...
Build Video 1.5
Why we called it a Renesis Hybrid
Other KMR Renesis Hybrid Videos:
• Hybrid Renesis Rotary ...
Mazdatrix Project & Car Introduction and information about our Moto IQ Story:
• RX8 Renesis Hybrid bui...
Hybrid Stainless Flange intro:
• RX8 Renesis 13b HYBRID...
Flange listing:
www.ebay.com/itm/1940732944400 - Auta a dopravní prostředky
This is exactly what the RX8 community needed. Hybrid option!
Great vid, looking forward to the rest of the build. I'd personally like to see a street port first, just to see how the motor behaves with a more "streetable" port setup. And as you said, you can always go full tilt and bridge later, if the want comes
yep, wanted to get opinions. Thanks so much.
Street than bridge is the way 👍🏼 realy amazing build
I hope you can put these videos in a dedicated playlist to aid in future views for information
Just did it.
Also I'd like to see street port just as you are doing now. Can always do another video down the road for a bridgeport. I think having the most streetable and reliable build would benefit the masses more, and can do focus videos later for bridgeports
Street port first then semi PP. Dyno #s/graph comparison of both. Great videos
Make it NA, streetport let's see how it will compare with a regular Renesis :)
I agree
Street port, N/A!! I'd like to put one on my, FC or a miata.
Big street port > bridge port. Semi PP > bridge port
Awesome content! Great to see you experimenting!
Thanks Kyle, keep up the good work!
Keep up the good work. 👍
Can’t wait to see the outcome of this
Looking forward to progress.
Subscribed. Keep up the great work 🤙
Do the bridge 👍
Thank you again
Definitely want the Braps!
I would love to see bridgeport turbo either full bridge or half bridge. Or like others have said streetport first, test, then go bridgeport and compare performance. Love the videos and plan to do this myself with the info you are providing. Thanks!
can't wait!
I also vote for street port
Personally never been the biggest fan of BP. I was surprised and had to double check you on the subscription amount, figured it was much higher than that. You seem to give more technical information than most of the other videos I watch. Keep it brappin man, always good stuff from your channel.
The reason i mentioned removing the siamese port on the last video is because I saw it mentioned in one of the most recent Mazda patents filings. Intake ports are on one side plate, exhaust is on the opposing plate and has a valve controlled peripheral slot style port also. Maybe a video where you elaborate on your experience with flow balance and related issues might be warranted. After all, if Mazda R&D is looking into it, there might be interesting developments in that direction.
garagealpha.com/blogs/news/new-rotary-engine-mazda-just-updated-their-rotary-engine-patents
love to see the internals and details for the hybrid block
Great vids and content Kyle.
I would go with a street port and do all the fancy stuff to the rotors etc.
Depending on your time and how you want this project to unfold I would love to see what you are doing now NA with complete factory intake etc then switch over to ITB’s to see some results.
No one has really done testing with ITB ‘s on a renesis before and that’s something I think a lot of people would like to see.
So power results with factory intake then power with ITB’s.
👍🏻
Either way keep on brapping!
Definitely beige it! Wish you were in Australia, would love to have my engine built by you.
I think a Large street port with a semi p would be dope
Nice 👍
Street Port turbo then bridge turbo . Total side by side comparison ,hp,fuel air etc. Building one myself have everything nearly ready to put together ..watching and waiting anxiously..Love your drifting Kyle need more full run vids dude. Awesome .
I really hope you prove every one saying this is impossible wrong. I see such potential in the rx8 once this has been tested and proven that this is doable and makes power.
Leave it Street ported.Great to see project is rolling on.All rx8 owners want to see more interest taken in the car & engine.
street port first please so we can see those more livable results
Street first Bridge later, gives more content out of the same engine.
I would like to see it half-bridged. Would it not retain the low end if you keep the stock manifold? Basically like variable valve timing on the piston engines. I appreciate that you explained about the exhaust balance when eliminating the middle ports. I can’t wait to see the rest of the build!
Bridge it 🙏
Loving all the love you are giving for the RX8!!! This is what I want to do with mine eventually too!
What are you thoughts on doing a hybrid but only using it for the street? Not for racing? Will it still be reliable?
Looking forward already buying parts for this build but interested about how the intake would work
Next time you should try a peripheral port Renesis: peripheral intake, side exhaust. That should be an interesting build and (in theory), you should get that nice "brap brap brap" without unburned fuel spouting out of the exhaust.
We have done it. It was less successful than a traditional P Port in our Dyno testing at Mazdatrix.
Its been done before and egt's go through the roof and the water seals is prone to failure, just like a normal renesis.
PP exhaust ports are definitely the way to go.
Honestly I am quite excited and so happy you are doing a walk through for others to truly do this right and understand your methods and explanations.
I am sure you'll answer this maybe later on, but if the block is studded like what you did years ago, how much boost do you feel could be used without getting into danger zone?
Assuming a good tune of course.
I’d really like to see n/a comparison dyno figures street port and bridge port before it gets turbo if that’s possible?
I would love to see it with a streetport and later with a bridgeport
I would like to see how the street port is, then if u want you can always Bridgeport it afterwards
Go street see how it performs with dyno testing then half bridge then bridge so that interested persons can see how all aspects of porting affects this hybrid motor
Street port first🥶
Hey Kyle! I’m actually in the process of building one of these aswell. I’m waiting to hear back from PAC about doing a 2 piece e shaft. Also looking for a set of s4 rotors for it. Looking to do a higher HP build! Any suggestions would be awesome!
Street Port first so you can do a before and after. Cheers
question Kyle, adding the peripheral exhaust reduce torque? Have a rx8 and want to push the renesis as much n/a. thank you and keep up the great content.
Street port first; lets see what a broad powerband hybrid looks like in 2022 before doing the peaky racecar thing!
What are the options in having 2 separate exhaust manifolds, with the side exhaust ports pushing into 1 turbo and the peripheral exhaust ports into another turbo. Would make for some interesting tuning of the wastegates.
very informative video, I'm excited to see where this goes and how you tackle some of the issues I've heard brought up on the forums whenever this configuration is discussed. Almost every "hybrid" build I have seen so far has attempted to either fill the Renesis exhaust ports and semi-PP, or use the Renesis ports as some kind of weird wastegate setup. Can't wait to see how a full flow multiport exhaust setup goes. Do you plan on running F/I or keeping it N/A? A lot of performance issues I read seem to be lessened or solved by Forced Induction.
I would say that I don't really recommend semi peripherals unless it's a 100% drag race motor. I also don't think filling the exhaust side port is a good idea. the principle is to have a 13B with more volume metric flow both on the intake and exhaust and it accomplishes this in street port configuration. I've only done a Turbo set up but it performed very well in a race car.
Hey Kyle!
I think a bridgeport would be the coolest because you could find out the max Na hp (without going semi pp or pp). But if you are going to build a high rpm rotary why not remove the divider on the secondary ports and make the ports HUGE!? I saw in one your other videos of the fb rx7 that the divider was cut out. You said they capped these engines at around 10k rpm up to 290 hp. And if you were to bridgeport these Monster Ports and with the extra exhaust ports..... It would defenitly be interesting and unorthodox. Very much hotrod style if you ask me ;)
What are your thoughts on this? Thank you for all your Videos!!
Also for those living across the globe. Have you considered selling a hybrid kit for those with a rx8 to make this into a possibly a 2 weekend project?
curious if this build would be a viable option for a series 2... I suppose engine management would be the biggest determining factor, although how would you deal with the third oil injector on the housing being left out? thanks in advance for the info and videos man!
Nice video!is this the solution for more engine life and more power when you add a small 🐌 to the engine bay?
Bridgeport it!
i would say bridge port later and keep it streetported now.
If you had time I’d say skip the bridge and go semi peripheral lol are you going to boost it or will it be N/A? Also why do you think not many other people have done this?
Do the full bridge
street now bridge later?
i would like that
I know an answer to this question may be on forums but id like your take. I was planning on just getting my apex seal grooves milled down and running goopy 2mm seals with stock ports. Will this have any significant benefit in terms of how much power the engine can handle? Also, I was looking into the idea of meth injection instead of e85 and shooting for 400whp. Thanks.
Could you do this on a 4-port just wondering because you get a lot more torque out of the 4ports
any reason why not try and do a semi peripheral port? Is it an issue about the intake manifold design?
If i do a full bridgeport do i have to port the middle iron also? Or is it possible to leave the middle iron untouched?
Do you think this hybrid setup could be done with the 4 port rx8 side housings?
Semi pp next power gains
I would love to see a bridge port on an Rx8 😅 but regardless I'm more curious about what options their are for headers.
Iv really only seen Elite Rotary's but they are $2300.xx
Or the manifold plate by itself to fab your own.
Also how do you work around the engine mount on the Rx8 for hybrid n/a and Boost header applications. @kylemohanracing
But you still have not talked about what these are like in NA form.
What about a half bridge - only bridge port the secondaries?
On a FI hybrid. And assuming you have unlimited air, fuel, and boost. What do you think the most HP you could get out it? Using the Rx8 rotors could it be similar to a 13B REW?
Where can I find gslse rotor housings? I can only find a used pair for 1k and other websites say out of stock
I'm also working on my rx8 so quick question if I was to send my engine to you for this exact set up what would the cost be
I vote for keeping it Street Port. I’m watching this to see how much it can improve a normal, often driven Rx8. If you bridge it, I feel it takes away the drivability. Sure it sounds cool but most cars shouldn’t do it. You can always add it later… Will this be forced induction or N/A?
If rotaries have been supercharged, why hasn’t anyone ProCharged one?
What if you do a half bridge 🤔
street port pleaseeeeeee
Street Port and Mazdaedit factory ecu NA.
Great video! I have an 05 Rx-8 and I'm looking to do this and a turbo with about 15 pounds of boost. Would you recommend bridge porting it? I'm hoping to get around 400 to 450 HP at the wheels!
I watched the Vargas brothers video on acquiring a hybrid setup and they guy the bought it from was making around 430 to the wheels at only 11 pounds ,but I guess it depends on the size of your turbo ,I too would like to get around 450 wheel with a build like this
Street port, minimal rotor machine work.
What's the exhaust initial open timing between the peripheral exhaust port and the side port and what's the total exhaust port area compared to OEM.
street port
I have a real question, so i bought a 500$ Automatic Rx8. We live in a pretty awkward place, lots of traffic. It's in need of paint and a rebuild (coolant seals went) could i use my 4 port 13B Renasis engine for a hybrid build. Will everything still bolt together the same as the 6 port?because I wanted to buy a 6 speed Automatic from a NC (SJ6A-EL) that was also used for the "Spirit R Rx8 Automatic with paddles" i figured worth it to ask. And a secondary question is can you keep the Sohn oil metering Adapter with the build?
have a 4 port template coming out soon, not sure how a hybrid would work but always fun to try new things.
what about the exaust manifold? how to "accord" all the pulse from all that exaust port?
I'm very interested in seeing it as well. Unlike a piston engine, the collector merge order won't be that big of a deal because it's basically 2 cylinders but with 5 pipes. A nice 5-1 header will be a thing to see though!
There's already images of the original one he had. Look up hybrid renesis moto iq.
why the large exhaust side port? Isn't that just excess apex wear with no benefits having such a large exhaust already.
Closely following. With the costs of an REW being what they are, I'm interested in this idea. Question: do you know of anywhere that sells a turbo exhaust manifold for a setup such as this?
Thanks!
In addition, with the compression ratio of the rx8 rotors being higher, what sort of power output would be expected? Hope you can find time to answer. Thanks!
I don't know if anybody has a full exhaust manifold available yet but people are working on it. I offer the exhaust flange so fabricators can make custom setups for whatever the motor might be going in.
@@KyleMohanRacing Thanks, I see the manifold flange on Mazdatrix as well. I found a company that sells one. It's pretty pricey!
What if any, impact do the higher compression RX8 rotors have on power output with a turbo? I assume you have to run less boost? Thanks again!
I just wanna see what is possible in terms of reliability.. so no bridge from me
No bridge to begin with, want to see the difference with just hybrid first!
No bridge
Do you think this hybrid setup could be done with the 4 port rx8 side housings?