MY BOOSTED MAZDA RX8 (13B RENESIS)

[@青い鳥ちび]

As a Rx8 owner thank you.This is what we all want to see a turbo on Renesis & what kind of safe power can be made.Then go nuts.

[@BlackstarMotorsport]

You're welcome 👌🏽 I feel like there isn't enough information on this topic and I hope to make more content regarding it in the future, just so people know that they aren't as delicate as they're made out to be. 💪🏽

[@caysengriffin5627]

Bro for real like this is my dream as a dual rx8 owner with dreams of boost or something faster in one of em

[@xSc0oByDo0RaCeRx]

Can you share what the best side seal Clarence for renesis turbo? lol

[@righteuosrhino129]

I NEED to see more, I had an rx8 and had to get rid of it but I’ve had the itch to get one back and a 300hp reliable turbo setup would be awesome. Keep up the good work and research

[@jamesowen418]

Awesome video, 280 at the wheels would be pretty much perfect. And a well thought out kit would make things much less stress than trying to put things together from different sources and having failures/compatibility issues 👍

[@jackwilder4538]

Please come back!! I NEED this content in my life and hope to build along side this project!!

[@irishbandit3437]

Great video and long time needed but the idea of an install video like step by step it would sky rocket in views

[@BlackstarMotorsport]

I will when I actually have a kit produced for distribution 😂 In due time!

[@converge8008]

I love these videos, remember back in the car throttle series and watched the rebuild video about 10+ times, back then i just passed my driving test and got my first car and was looking for my next car (i have a work van that i daily) so a RX8 R3 was the car i went with, to say i love the car is an understatement, it's a high revving therapy machine that never fails to put a smile on my face, however what you said at the beginning is painfully true a 1.6+ turbo with a catback amd a email has the potential to reach 300 😂, I have an R3 i live in Bristol and drive the car maybe 5k a year, so I'm a definite buyer for the turbo kit when it comes to fruition, keep doing the good work mate... LOVE THE VIDEOS!!

[@BlackstarMotorsport]

Thank you for the kind words, and I'm glad that the CT videos inspired you to dive into the rotary world! 🥳 The RX-8 is a great car, especially the R3!

[@pA-yy-A]

beautiful man, i've been on 8psi 300whp for many years and it hasn't skipped a beat, nothing like a turbo rotary, i've had high powered supras and skylines before too, this chassis is mint

[@dantontominagas]

What you tuning it with? I have the greddy kit and running mazdaedit. Was wondering what else i need to do it safe

[@Vipurs]

Finding a good turbo kit for the renesis is so hard. I wish greddy still made it for LHD cars, all the company’s in the states make questionable turbo kits at best. If you make one id buy one. Rather keep the renesis than swap an FD motor

[@zuzutm3391]

Oh my god I finally found your channel and it was so random as well. After I watched the AutoAlex video on his rx8 I have been hoping you would have a youtube channel but could not find it for the life of me. Now I was looking into rx8's and your video popped up, actual miracle. Good to see you again!

[@BlackstarMotorsport]

You're not the first to say that! And I'm glad that I have been able to deliver 🙌🏽

[@matthewhinkle3929]

I've always wanted an rx8. Thanks for walking us through your work on it!

[@extremegleamdetailing9680]

Great video Josh, cant wait for my rebuild in march 😊

[@BlackstarMotorsport]

Thank you! I look forward to seeing yours in the flesh! 🤩

[@trackstarflash]

Why not play around with making it a Semi-Peripheral port exhaust and using the older Rx7 housings for better exhaust flow? You'd have to use the older rotors or maybe the RX7 apex seals would be good enough. But being someone in the field, I bet it's crossed your mind. :) I just think the Renesis would be way more efficient with that change.

[@alexdodd6768]

Shared to literally everyone I know

[@BlackstarMotorsport]

My guy! 🫶🏽🫱🏻‍🫲🏽

[@RiqueRacing]

Looking forward to see what the renesis is capable of. The internet claims 400hp is a big ask but I really want to see what the actual potential is

[@BlackstarMotorsport]

Me too! I'd rather go ahead with it myself, just so we give it a proper stress test long-term 😆

[@RiqueRacing]

@@BlackstarMotorsport Can't wait. All the best with the build and R&D

[@noname-sd5dt]

Brettus got his +400whp and it hasnt popped yet. Perhaps reaching out to him re tuning and cast manifolds might speed up some development costs and downtime. The more boosted renesis for data the better

[@BlackstarMotorsport]

@noname-sd5dt fully aware of Brett Harper and his developments. Unfortunately his cast manifold is investment cast, (quite expensive) which is just one aspect of a conversion. The wastegate placement doesn't allow for a plumb-back arrangement either, which is a tradeoff for some people. Factor in the cost of the turbo, IC piping and various other things, and it becomes a fairly big expense. His manifold is fairly limited in numbers as well. But for those wanting a hassle free, bolt on arrangement for the turbo manifold, his manifold is second to none 👌🏽 Side note, my failure is nothing to do with the tune. And as far as I'm aware, Brett's engine isn't entirely stock, and everywhere else in the world has access to ethanol at the pump unlike the UK.

[@caszzxs4104]

Fantastic work as always! Please do an R3 (or S2) next. Tons of content for S1’s but not much on the S2’s. Plus there’s plenty difference between the two; would be good to see what they can do and cannot do.

[@BlackstarMotorsport]

Thank you for the kind words! 🎉 I'll keep that in mind, there are very few S2 (R3) RX-8s in this country, but I fully intend to get some R3 content in the future 😉

[@luciferthefallenone3140]

I've got an R3 needing some tlc but love it :)

[@thatrotaryboyy]

Can’t wait to turbo mine been designing a custom turbo manifold for a bit, just rebuilt mine it’s a full bridgeport too got almost 500 miles on rebuild

[@josephtopps1289]

Informative AF mate. Rotary tuning and building is voodoo to me but I learned something today. Good stuff. 👌

[@BlackstarMotorsport]

Glad to gear it man! It's not rocket science or black magic at all, and you'll see this in the future as well. 😁

[@UnderdogN0MAD]

I appreciate the R&D you’re doing on this!! I’m definitely gonna be following and I’d love to get in contact with ya about some ideas and suggestions and some other questions!

[@darrenlucas2768]

Owned an RX 8 now for 9 years....love it,.....lots spent including the usual rebuild....will hook up with you boys at some point for the final ECU tune that it is lacking. Do have a qustion.....was Alex,s RX from his old channel Car Throttle that you guys rebuilt rated at 215bhp at the crank or wheels? As he says wheels but I'm doubtful it could make that much. Great content,🎉

[@jasiu3091]

Mad respect bro, its my dream car!

[@khullguycr4418]

I'm quite new as a RX-8 owner around 6 months however I keep the research of the rotary engines Renesis mostly and try to learn a lot for two years because my main task is to make a turbo RX-8 I'm not new on this however I don't know why I just wanted a rotary engine an a RX-8 so I sold my Civic eg that I already swapped pretty fast car for track abuse but I decided to sell my Civic and continue on this new journey and I got 6 months with a very low mileage RX-8 I bought with 42 miles and it drives nice and strong 8 miles and keep my main plan is go turbo with water meth on the middle or final of 2024 and from that year try to get a usable 13b Renesis to make a rebuild port and put deeper apex seals and if I had the chance and money just bought the PPort housings and start the rebuild from that 💪🏻 im gonna take a look I will do as much as I can on the turbo part by my own because I have some experience from the other turbo cars or cars that i make some upgrades on the pipping bigger turbo etc..

[@Diontb]

Ive got an R3 in the UK not too far from you as my second car i would 1000% volunteer for you to use it as a guinea pig if you'd like ! no problem you keeping it as long as you need too !

[@twinchrome3258]

Any progress or news? Very eager to see it!

[@mindyourown472]

Renisis god - we’re not worthy :)

[@BlackstarMotorsport]

Just an ordinary man over here, learning by messing around 😂🫶🏽

[@twinchrome3258]

I was waiting till the end of winter to refresh my rx8 engine lol Would love to turbo it Lhd seems easier to turbo, cant wait!

[@tomsmith2209]

Excellent presentation. Thanks.

[@TGBuild270]

Shit, sign me up!

[@TurboHappyCar]

Great video. Will be interested to see how it goes. (And thanks for using a tripod... most of the time. I can't watch other rotary content creators due to motion sickness, lol)

[@BlackstarMotorsport]

Thank you! I'll keep that in mind for the future 😂

[@gamaliel311]

if you change the rotors to 9.4 compression rotors. You can reach 400hp without problems.

[@jaredrule1431]

Where are you going to find 9.4 Renesis rotors?

[@gamaliel311]

@@jaredrule1431 old Rx7 engine have it. You need to balance rx8 eccentric with new rotor 9.4.

[@jaredrule1431]

@@gamaliel311 REW and earlier rotors aren’t suited to use in a Renesis engine, as the side seals are not in the right position to suit the Renesis port positioning.

[@BEYTEK]

i been lookign at rx8, just because maxxecu controls the canbus, abs etc. means i can swap in an Vr6 turbo or kswap it and still have all the features. even with an 8hp box. i love and hateee canbus haha

[@BlackstarMotorsport]

I love all the progress you've made with your compound turbo setup in your K20 FD! I'd be keen to see something similar in an RX-8 chassis 💯💯💯

[@claudedottin1312]

Hey it’s you.

[@SoundBoy808]

keep up the RX8 love, but let's face facts together it WAS underpowered from day 1. Even if it had had an actual full 250 hp that would have been a massive improvement.

[@heroesofthelandstrasse]

Or a full 231 HP instead of 215.

[@SoundBoy808]

@@heroesofthelandstrasse exactly. 215 was actually a good one!

[@bdolla5118]

I want to start practicing making my own mainfolds on some flanges what would you suggest that you could bend into port size the only other option i have is to cut my xforce headers for port match reasons flip them 90 and heavily modify them to clear and possibly remove the battery location. Not sure if your familar with brett harper or brettus he designed a manifold basically right next to the exhaust ports for less boost lag and hes been testing around 14psi reliably intrested to see your kit priced reasonably

[@FRNTUPGARAGE]

Have u made the exhurst manifolds yet I’m keen as to boost mine here in oz

[@kaiwenli3432]

Nice work, I am currently slapping the Pettit supercharger on my R3, needs to be adapted due to OMP pump in the way compare to an S1 . I have the high boost pulleys but i’m not using it to have a safe amount of power on track.

[@lexeg1]

You make it very interesting to keep my rotory engine in the rx8 been debating to put a 2j in there . But like the idea of boosting the stock engine too

[@BlackstarMotorsport]

2JZ's are great engines for power, but it all depends on what your budget is, and what your goals are in terms of power 📈

[@lexeg1]

@@BlackstarMotorsportnot really looking at budget. Project cars are always going over lol. I always wanted a rotory car. And I had a good story buying this one from the uk. I own a big hp supra. So just looking for a fun driving experience. But like anyone I got a little rotory scared.

[@BlackstarMotorsport]

@lexeg1 I always say to people, if you can, enjoy the RX-8 for what it is - a well balanced rotary powered car. And if we can get a nice turbo kit into the market to spice things up, people will like it even more! It's definitely the missing piece 🤩

[@lexeg1]

@@BlackstarMotorsportlike I said. You made me want to keep it as is. Think I do want you to look over the motor. If you offer that service

[@careysairsoft6197]

grate vid well informative and at face value i would love to offer my rx up testing stock 231 6port if you want please get in touch

[@ericbrusuelas1807]

I'm down to send my R3 motor to you guys, I'm already in the process of going though route to boost mine. I have 2 engines ready to build for boost. Only down fall is I'm stateside 😅 my goal is 400+

[@cleeansin4472]

My comment and like for the algorythm, keep it up! :)

[@jakubkrchman5318]

With how much boost would i Pass Euro 4 Emission Control. I reconsidering a procharger

[@thebeats69]

If you need a standard 231 engine to try turbos on I would happily let you use mine as a donor. It currently getting a body kit fitted and wrapped and has all the usual mods done to it

[@tlovsoe4211]

What did you use to tune the car? I like the fact that the kit is a low mount since the rotary engine has a good COM and i wouldnt want to ruin that. The only other thing would be equal length runners.

[@Side_Show]

I'm curious if you thought of going with a rx7 GSLse rotor housing with peripheral exhaust ports instead for better flow. A few people on KZbin like KMR, John Vargas, and Rad Potential were planning on doing this also but haven't seen it completed yet. I know KMR sell the exhaust flange. I seen RX7 specialties (REC) talked about if you use GSLse housings, it requires 12A coolant seals.

[@gamingdonehere3497]

hey im an rx8 owner aswell I wanted to ask are you able to run 6-9 psi on the stock motor without the seal modifications?

[@colinwinterborne]

Love my RX-8 Need some tweaking by you though!!

[@BlackstarMotorsport]

They're great cars! And when the time comes, just message the Instagram or Facebook page 🎉

[@TriniRogue]

Could you use the rx7 rotors to drop compression? and that way run more boost and make more power or is there a limitation on doing that in the renesis? also im so hyed to see this thing rip, have quite a soft spot for the rx8

[@Carlos.Rivera]

Better use 85' housings and keep rx8 rotors for better response

[@BlackstarMotorsport]

So one of the reasons it's not advisable to run rotors other than the Renesis rotors, is simply because the sideseals on the earlier rotaries are quite thin and prone to premature wear - the biggest flaw on the Renesis is the heat on the sides of the rotors that builds up due to the side exhaust port arrangement. It's actually documented in SAE papers, that the 13B-MSP oil injectors are directed at the side and corner seals to keep them cool. Plus, lowering compression sacrifices torque off-boost, and increases turbo lag. So there's a bit of a trade-off there, but I always prefer keeping that responsiveness personally. 🤌🏽 High compression all the way for road cars!

[@jaredrule1431]

Can’t use regular 13B rotors in a Renesis for various reasons. Although Renesis rotors can be used in earlier 13B engines.

[@АлексейКастевич]

Do you have any expectations on how long the engine will last with moderate boost setup? I understand that's a very fuzzy question for now, but?..

[@BlackstarMotorsport]

Well, we'll find out in due time. There's more than enough examples in the USA, Australia and New Zealand running boosted setups and racking up the mileage. As for the UK, I'm not aware of many. That said, not many people have them as daily drivers, let alone when boosted. 😂

[@АлексейКастевич]

@@BlackstarMotorsport thank you, looking forward to finding out this :) As an owner of an RX8, I find the car a bit underpowered for its nice handling, extra 50-100 horsepower would've made the car so much more enjoyable... Wish you good luck with tuning your car!

[@assumingctrl]

I wonder at what point it makes more financial sense to upgrade to an REW.

[@jaredrule1431]

Any updates on achieving your goal of 400hp from the Renesis?

[@wadewootton4428]

How much was it making n/a with the same port job before it got turbocharged to your last Dyno figure is porting still worth it?

[@BlackstarMotorsport]

224whp, but I suspect that number has gone down a little over time with the abuse I give it 😆 There's a general consensus around porting the Renesis; don't port it. But from my time at Revs and seeing the difference between ported and stock cars on the dyno, I can day with confidence that even just a street port is worth having. 👌🏽

[@habbofoxx6365]

Yeahhhhh boiii 🔥

[@CHRISKASSMUKEN]

Which engine is on the first car on this video?

[@collectroom6108]

Plans to sell it to the US?

[@BlackstarMotorsport]

In due time for sure! It would be easier over there since you guys don't have the steering shaft in the way of the exhaust manifold. 😆

[@codyfellows885]

I can’t believe it’s you I watched you on car throttle broooooo

[@BlackstarMotorsport]

Glad you found me! 🙏🏿 Should be back to regular posting soon!

[@lukascies9880]

Ohh JOSH ! 🎉 Are you still working on revs ? I watch you on carthrotle youtube many time ago on next years i wanna rebukid a engine on there

[@BlackstarMotorsport]

No I’m no longer at Rev’s, I went self employed and set up Black Star Motorsport around 2 years ago.

[@lukascies9880]

@@BlackstarMotorsport ok i must remeber that ;D but you still rebulids a vankiel engine? Feom rx ?

[@kasinong2413]

How much boost can you get away with by tuning the stock ecu (mazdaedit etc)?

[@BlackstarMotorsport]

So in terms of stock RX-8 hardware (using a 231 for reference), the standard fuel system will support 260whp pretty much at the limit. But, I would limit boost to no more than 9psi. This can all be done on the stock ECU as well. 🎉

[@Drifterman07]

Do you think your kit would fit an efr 8374?

[@jimbowcracklehead8071]

Can you put it back on the dyno for us?

[@zallas_99]

What's the highest wheel hp you've got out of the NA renisis? Also, at what RPM?

[@benfps5654]

Bridge port, just above 200 whp at the top end

[@BlackstarMotorsport]

It was mine at 224whp, pretty much with the same engine that I have now. Other full-bridge engines that I've built have made in excess of 210whp, but at the expense of some streetability and fuel economy. 😂 Street ports aren't far off, but they keep all of the same driving characteristics as a stock RX-8.

[@SoldfMC]

Stock ECU?

[@rexhelley1828]

downpipe and an email 🤣🤣🤣

[@grahamphillips57]

That's why I have an LS2 swap lol probably gonna be some hate over that but idgaf. I road course the car and it handles unbelievably. Currently at 400whp but will be going from mild to wild over the next couple years with a built 408 stroker and procharger along with full keisler automation suspension and eventually some rocket bunny WB aero.

[@LEVELRAZOR]

Where can you get the kit?

[@BlackstarMotorsport]

We are currently in the testing stages of our turbo kit, we are looking to launch the kit to the public later in the year.

[@mokokawi]

im turboing my auto rx8

[@danielkruger4305]

hybrid?

[@BlackstarMotorsport]

All Renesis 😮

[@ve2430]

So basically don't turbo a renesis? Gotcha

[@MrHDVids]

Did you say downpipe and an email? 😂😂

[@BlackstarMotorsport]

I did! 😆 I meant what I said!

[@hotwheelshuntinghauler]

What about just putting in a fd engine with a big turbo

[@noname-sd5dt]

Thats a pretty big and expensive task. The plan with the renny is to keep most things stock with original ecu omp etc and bump the power a bit. Extra 50-70 rwhp with doubling torque would be perfect for a track day or street sportscar.

[@mingscustoms]

T3 flange us too small

[@benfps5654]

😂✌🏿

[@ratrodbuilds]

Check out my rx8 v8 swap. 400hp only 200lbs heavier