13b renesis Bridgeporting the exhaust????

Video number 4 on this rx8 build. Can you Bridgeport the exhaust and can the ports be made bigger? Will a standard rx8 spin 20 inch wheels ????? No it won’t ha ha #13b #bridgeport #rotary #rx8 #13bpp #renesis #rx7 #mazda

Пікірлер: 84

  • @Madrxsev
    @Madrxsev6 ай бұрын

    just noticed i have a coolant leak on the rx8 .probably had it for awhile so hence its running average . no drama its coming out anyway ha ha

  • @ClwnJuNkY

    @ClwnJuNkY

    6 ай бұрын

    😂

  • @JohnSmith-pm6lu
    @JohnSmith-pm6lu6 ай бұрын

    I know nothing bout rotaries but i can listen to you talk about it for ages lol

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    Ha ha I don’t know much either really.

  • @cabbagecutter
    @cabbagecutter6 ай бұрын

    Another awesome video.. Learning as you're learning! Keep em coming my dude!

  • @Phil2stroke
    @Phil2stroke6 ай бұрын

    Im writing this and its my theory on why this is a bad idea (time will tell) obviously but as you said earlier in the video the temperature on the exhaust port is extremely hot on the 13b msp engine having a thin bridge is asking for warping or cracking of said bridge food for thought 💭 i am happy someone is doing it and documenting it on top of that so we can actually know

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    I agree with you and after reading some of the comments and hearing from someone who has done it. It’s not worth the drama. I have also been told that it’s possible to run a bridge port on the other side of the main port. That will involve removing the scraper seals which I’m also not that keen to do. I may just leave it as it is.

  • @kalebholloway8139
    @kalebholloway81396 ай бұрын

    good video loving the content.

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    Much appreciated

  • @jeffowens2377
    @jeffowens23776 ай бұрын

    Also, you have to remember every other rotary engine has pp exhaust right there. It's hot there anyway. I wouldn't imagine any extra heat or anything to crack the iron or warp it any more than normal wear.

  • @RCrazyNZ
    @RCrazyNZ6 ай бұрын

    best video you've made bro well done. 🎉.

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    Ha ha if the car did a sick c#%t burnout I would agree with you

  • @RCrazyNZ

    @RCrazyNZ

    6 ай бұрын

    @Madrxseven nar look at all thr comments bro and likes this video was on. The man.

  • @brayt0n
    @brayt0n6 ай бұрын

    Another sick vid lad, love it.

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    Thanks heaps. I just need to do my research before hand. It’s looking like my traction control may have still been on….. next video I do I’m gonna make sure I can spin those wheels.

  • @brayt0n

    @brayt0n

    6 ай бұрын

    @@Madrxsev there should be a button to turn it off? my dad has a 04 rx8 atleast in his u can turn it off

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    @@brayt0n yeah mine has that also but have pulled the fuses so there shouldn’t be power to those. I need to get rid of it all. Not quite sure how yet ha ha

  • @brayt0n

    @brayt0n

    6 ай бұрын

    @@Madrxsev surely the DSC is related to a wheel sensor on the rear or tail shaft? unless the ecu controls it somehow?

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    @@brayt0n yeah I believe all the wheels have wheel sensors so if I was to unplug them all it should be good to go. Smugs is going to film his rx8 today I hope showing what he did . He has also removed the whole abs unit.

  • @DriftCentral
    @DriftCentral6 ай бұрын

    The lower down u go the more the overlapping of in and ex ports, more the overlap less power you'll have in lower rpms, also considering the properties of cast iron at hi temps it'll likely to develop cracks later on especially if you got lots of overlapping of the ports, as they are already known for hi egts

  • @rotaholikzhds906
    @rotaholikzhds9066 ай бұрын

    Cheers brother for the plug, and hard, its been bugging me for years ahhaha after someone showed me one they started ahaha,, was thinkn if the bridgeport was done inside so the rota ran over it more rather than the cornerseals etc, but hard there is always away,to make anything happen, p.s i removed all tye abs setup in my rx8,, but just unplug all the stupid plugs, from back off the hubs, and em rear, brakes disconnect ,,but hard still gangsta,massive

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    Oh yeah man that’s the one remove the abs. That will work moving the bridge in. Cheers man you’re giving me heaps to think about.

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    Was it a major to remove all the abs. Want it gone so I can run a water tank in that area to spray the radiator while doing a burnout. Looks dumb also.

  • @rotaholikzhds906

    @rotaholikzhds906

    6 ай бұрын

    ​@@Madrxsevyea so opp to normally a bridge would sit ,if possible could be larger than normal, and hard il do a walk around to how i built my rx8 maybe tomorrow or on sunday,,

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    @@rotaholikzhds906 yeah man that would be awesome . Shot bro

  • @rotaholikzhds906

    @rotaholikzhds906

    6 ай бұрын

    ​​@@Madrxseveasy asf bro,, il defo make a vid tomorrow while im getting it ready to go do some filming on sat,

  • @jeffowens2377
    @jeffowens23776 ай бұрын

    Never done it before, but I say it's possible. Fill both rotor housings with High temp JB wild. At the exhaust port. And as far as the Bridge, you should be able to do it on all irons. Exactly the same as long as it has enough meat. And that is from experience.

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    Awesome sounds like a go

  • @andynogo

    @andynogo

    6 ай бұрын

    The exhaust gases will destroy the JB weld pretty quick... them you'll have a bridge coolant& exhaust port!

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    @@andynogo ha ha yeah it will. I have since moved away from that plan. You can bridge the other side of the port but you have to do some mods which I hear is removing the scraper. Not sure if I want to head down that road.

  • @jeffowens2377

    @jeffowens2377

    6 ай бұрын

    JB weld is stronger than you think. I have been building rotary engines for like 30 years. And I have used it in some crazy spots. Really hot spots of the engine. Anyways, that's why I said. Fill in the rotor housings. Just make sure you sand down the JB wild as flush as possible. And if I was doing it. I would fill in the exhaust port as well. And I would just Dremel right through the metal And The JB wild for my bridge.

  • @PH-x
    @PH-x6 ай бұрын

    Im loving this build video man ive already watched it like 4..🤔 this will be the 5th time i think haha😅😂 , im feining a oldschool pp exhaust engine cant afford it outright so been hunting out options to devcon the irons an change the housings-exhaust header on my spare engine, a fat bridge and pp intake housing with pp exhaust would be insane but the flange to make that work an lenth on the runners would seem extremely difficult to make letalone fit a stock setup lol people probably think thats crazy idear lol , i tossed up full pp intake an exhaust but man would it be hecktic do im guessing bridgeport stock intake and pp housings is where ill end up going with it 😅🤷‍♂️

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    Either one of those options would be awesome . But yeah running the bridgey intake with pp housings would go mean. Devcon up the renesis exhaust ports . You would need to machine out rotors for a full size 3mm apex as the exhaust port will destroy the small 2mm seals. But would be epic.

  • @PH-x

    @PH-x

    5 ай бұрын

    @Madrxseven thanks bro thats a rotor save right there i didnt know that about the seals so thats super handy info 🙏💪💚👊✌️

  • @Madrxsev

    @Madrxsev

    5 ай бұрын

    @@PH-x I think you may be able to machine down the rotors and run a 2 mm rx7 apex seal. They are deeper which I turn makes them stronger. I’m pretty sure anyway.

  • @rotarynation7874
    @rotarynation78746 ай бұрын

    84-85 gsl-se 13b or older 13b housings /// 86-99 13b housings with water jackets cut ...

  • @craigcoghlan546
    @craigcoghlan5466 ай бұрын

    Maybe a hybrid would be the better option ,I think KLM racing is the name for the dud in the USA , which is having a go with them

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    Oh most definitely would be so cool. I am planning on putting one together to replace this engine later on down the road. I have started gathering parts for it already.

  • @yojoe310

    @yojoe310

    5 ай бұрын

    Its actually KMR (Kyle Mohan Racing)..He competes in Formula D and builds engines for MazdaTrix out in California..Pretty cool guy

  • @arcrotaryengineering7156
    @arcrotaryengineering71566 ай бұрын

    Done one, habe to weld gallery .didn't make a difference being intake bridged.i reckon maybe leaving intakes and exhaust BP..otherwise it's a bust..devcon won't work

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    Awesome thanks for that. So shouldn’t extend the port down on centre iron?

  • @robcameron5521
    @robcameron55216 ай бұрын

    The heat will kill the bridge . Can get away with it on the intake . You won't on the exaust , especially with a turbo .

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    Thought as much . Thanks for that appreciate it heaps

  • @carlhoffman7032

    @carlhoffman7032

    6 ай бұрын

    About to say the same thing. What apex seal are you runing in your brighport

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    @@carlhoffman7032 looking at running 2 piece power seals.

  • @carlhoffman7032

    @carlhoffman7032

    6 ай бұрын

    @@Madrxsev standard size rx8 seals bro

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    @@carlhoffman7032 yeah for now.

  • @che1421
    @che14216 ай бұрын

    I love your content and delivery bro , i wish i was working bedside you

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    Cheers man appreciate it.

  • @tianapereniko4632
    @tianapereniko46326 ай бұрын

    Very Under rated motors bro… learn the renisis and what other series parts work with them… could build a bullet proof motor from that

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    100% agree

  • @ClwnJuNkY
    @ClwnJuNkY6 ай бұрын

    Ive always loved the flow of the center Irons . Have you seen R.E.C from the usa CNC porting of the 6 port ?

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    No I haven’t I will go check it out

  • @ClwnJuNkY

    @ClwnJuNkY

    6 ай бұрын

    @@Madrxsev kzread.info/dash/bejne/apWc1sung82dqaQ.htmlsi=nYhDEjhUpqbb2oe4

  • @ClwnJuNkY

    @ClwnJuNkY

    6 ай бұрын

    Heres the link

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    @@ClwnJuNkY thanks mate

  • @markpowell8979
    @markpowell89796 ай бұрын

    The bridge on the intake gets a bit thin at the bottom, that's why the template does not extend down. Having said that lots of guys are cutting them the full length with no issues, iv just cut mine the full lenght

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    That makes a lot of sense. Thanks for that looks like I’m gonna cut mine the full length also. Appreciate you letting me know thanks

  • @markpowell8979

    @markpowell8979

    6 ай бұрын

    @Madrxseven are you notching the housings on all the bridges

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    @@markpowell8979 yep I will be . I’m going to use the housings that are in the engine bay now. I had spare irons that I have already ported. So will swap them over when I’m stacking engine.

  • @markpowell8979

    @markpowell8979

    6 ай бұрын

    @@Madrxsev 2 piece apex seal.? Would like to see the housings, am worried the corner piece of the apex will catch

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    @@markpowell8979 what I was thinking was notching only the secondary port side of rotor housings and ensuring the smaller piece of apex seal is on the centre iron side on front and rear housing. I have done that before and it seemed to be fine.

  • @raywirihana
    @raywirihana6 ай бұрын

    Pardon my ignorance im trying to learn something here what are we trying to achieve here? Is it for a lumpy idle. Sorry guys im new to this shiz

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    Pretty much just trying to make the area of exhaust port as big as possible to get rid of all exhaust gases faster . Water jackets restrict the area that can be ported. If it increases overlap with the intake ports than it will have a pulse in its idle

  • @camjones1106
    @camjones11066 ай бұрын

    Anyone done a hybrid Renesis in NZ .? Using the rx7 gsL housings ? End up with heaps of exhaust flow

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    I have heard of a few people heading down that path not sure how they are getting on. I was thinking about it but decided just to mick around with what I have.

  • @mrkeza64

    @mrkeza64

    6 ай бұрын

    An older dude I worked with took his rx8 to Rotomotion to get rebuilt this is a shop in Perth WA I'm a Kiwi , anyway they steered him in that direction gsl housings rx8 rotors etc but no porting as minimal gain they reckon for 6 port anway. I've got a 4 port rx8 engine that I'm going to swap into my e1800 van I definitely want it to be ported so all this info is very helpful. Cheers.

  • @camjones1106

    @camjones1106

    6 ай бұрын

    ​@@Madrxsev yeah it's good to see

  • @cefroboy
    @cefroboy6 ай бұрын

    Were u gt your template bro iv gt a blowen renisis tht im wanting to brigeport tht engine keen to buy some templates

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    Ordered them through mazdatrix in the states. Took a couple of weeks to get them but they are meant to as

  • @gorkuhmork
    @gorkuhmork6 ай бұрын

    id recommend if your looking for more exhaust flow to build a hybrid engine use your rx8 irons with GSLSE 13b housings you will get 3 times the amount of exhaust flow but yes it will require you to make a new exhaust manifold . there are a few youtube videos of this combination being done kzread.info/dash/bejne/ZISmsMp-f83gXdY.htmlsi=9UwipnRiF5OUSxTw

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    That is definitely the way to go. I have been looking into it a lot over the last few months. I have another set of irons ready to go just waiting for some rotor housings to become available and I plan to make that the end goal for this car.

  • @indracook1910
    @indracook19106 ай бұрын

    G day M88888888 hello from Aus u sure that 8 has its track controll off ? Them 20z gota fry bro. Kangaroo

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    Will double check . I’m sure it was all unplugged. Gonna go ahead and rip all abs out and whatever goes with it. Oh yeah the 20s definitely have to fry

  • @thedynoboys2823
    @thedynoboys28236 ай бұрын

    bro, little bit of water under the wheels to start it off man....😅😢

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    Ha ha got a little bit of water coming out the exhaust instead but not bothered about it at all . Gonna rebuild it anyway. Hope you boys have fun tuning this thing.

  • @thedynoboys2823

    @thedynoboys2823

    6 ай бұрын

    @@Madrxsev just don't paint over the maf alright 😂

  • @Madrxsev

    @Madrxsev

    6 ай бұрын

    @@thedynoboys2823 hopefully it won’t have a maf. Are you able to look into something that’s reasonably priced that will run this. I’m gonna run a gabbed plenum and intake runners. Ditching those actuators. So will be interesting

  • @thedynoboys2823

    @thedynoboys2823

    6 ай бұрын

    @@Madrxsev probably a maxxecu or cheap link like monsoon.

  • @davidhusband5022
    @davidhusband50225 ай бұрын

    porting rx8 motors does nothing. only thing that increases power on rx8s is ecu tune with mazda edit.