Fully Studded 13B Bridgeport Turbo Race Engine Buildup - "The STUD" (NEW) 

When I was 16 I was getting into a lot of trouble with the law. Skipping school and just being a knuckle head. My dad didn’t know what to do with me and I didn’t want to do much with him. So he came up with this idea of building an engine/car together. So he bought a 2ns gen rx7 and the rest is history. That got me into cars and off the streets. We eventually built a few engines together and one was a full port one. We studded it and all. This vid made me think of when my dad and I were at our happiest. Great vid man.

The stud kit certainly increases the rigidity of the engine block assembly, but I have a minor correction to make: The alignment pins aren't _supposed_ to support the torsional load on the engine block components. That load is _supposed_ to be supported by the friction between the engine block components themselves, as the components are clamped together with a large amount of force, thus generating a large amount of friction between them. The problem is, those tension bolts are single-use stretch bolts, and over years of heat-cycling the stretched portions of the bolts elongate just a _tiny_ bit, decreasing the clamping force and allowing the engine block components to slip past each other under heavy loads. THAT is when the torsional load gets transferred to the alignment pins, and the cracking that occurs around the alignment pin holes is a clear indicator that those holes were never designed to support that particular load. TL;DR: The stud kit is a good idea, but for a _slightly_ different reason than this video describes.

I love to see someone take this much pride in their work

Always love rotary engine reminds me in the young years I still miss my 1982 rx7 rebuild Bridgeport that’s was my best toy ever..

Thanks for the tip with the Hylomar

Always been fascinated by these engine's. But scared of them at the same time. All I've ever heard was bad things about them. But after 17 years of working on cars, I've come to a point in life where I want something different. I believe that any engine, done right, can produce high power and reliability. Ready to dable in these. Great video, I have a lot to learn still.

learned alot. Enoyed the video. appreciate your using a mic on your person instead of the camera mic. makes a big difference in clarity. closeup shots of the assembly were really helpful. please post more.

Man you guys make it look so easy but i know you have been doing it a long time

0:14 seconds in.... MAN-- just LOOK at all those fantastic housings & rotors behind him on the shelves....holy smoke. If I EVER bite the bullet and buy something with a 13B in it, I am ABSOLUTELY either getting these guys opinions on stuff, or better yet, I'm bringing my motor TO them, so they can do all the good stuff I would need done.

Your engine builds are so fascinating !

I built a 12a with a 13b se center iron full Bridgeport I used rx2 double sided side seals with the 9mm carbon apex seals currently ran out of money to go fuel injected reason for the se center iron but its running good with a 48 Weber wish I studed my motor

Thank you for taking such care in the assembly of these engines. It gives your customer (incl me) to have greater faith that you and Mike will do all the needful thing to make a strong engine. I plan to have you folks to assemble an airplane engine when I can. We have spoken on the phone once. It was nice to meet you. Did you say that you recommend using 2mm not 3mm apex seals? How much more lasting wear do you get when using the ceramic apex seals compared with your best other treated apex seals? My engine will not be using ultra high revs; just maybe 4,000 rpm on take-off and climbing to my desired altitude?

You like a pretty smart guy, I thought I would shoot this idea past you. I used to have a Suzuki motorcycle I also used to have a few rx-7s. I never came up with this idea in till just recently as a truck driver I became interested in the RX-9. What if the RX-motors didn't have side ports? What if the RX motor had the same size port as the exhaust port or slightly longer or taller just above the exhaust where the intake is now but at 10 or 2 o'clock depending on what side you look at. It would get a great deal more air than it does now. As the rotor pulls away it would suck in more air than the side port. Also a reed valve would be just inside the intake port to prevent any exhaust gas from going back through the intake port on the exhaust stroke of the rotor... It would be basically be like a two stroke motor in a rotary design instead of a piston design, the best of both worlds... I think it would work? Of course the that whole side of that motor would have to be redesigned, but think of the power. It could change it's fuel wastfulness problem... I also shot this Idea past Wesley Mahler...

I've got the Snap-On CG500 stud remover/installer, best thing ever for putting studs in and out of cases. Damn expensive though, $110 when I bought mine 12 yrs ago. As for Hylomar, ir was developed by Rolls Royce and designed to be 'safe' if it gets into lubrication system. I guess you've never seen the damage done by silicon rubber when it goes through bearings?

There is some amazing information in this video and I am really glad you all take the time to post some builds and share some professional knowledge. One question though, is there any way to strengthen an FD/series 5/20b rotors, you mentioned they are weaker and tend to dent under big boost?

I was very surprised when you turne the motor over i did not hear the intake nor compression sounds like all the other videos I’ve watch today. They build them very similar an afterngoing around circle for torc check many would turn engine over cpl revolutions an could clearly hear the sucking an blowing sound.

awesome engine work . i love these video's

I don't even have a rotary engine but enjoy watching these videos till the end :)

i sure dont know what hylamar is....but i sure have used a ton of Hondabond on my B18s ...and everything else.....and i see you used it on your bad ass rotary build.....give Honda a shoutout...!!!! LOL...

Awesome can't wait for more videos

Hi, Great Video!! What would be the cost of that motor? Thanks.

Love your videos.

you did not pre-lube the rotor bearing ? Do you pressurize the oiling system before starting?

would you recommend using cryo treatments on the housing for more strength & durability or would you run the risk of clearance issues with the rotors etc??

quality content! if i did not remove my tension bolts in the correct order for my rebuild have i ruined them? #rebuildonabudget

What school or book did u study on. I want to rebuild rotories, any help please.

Also on the studs, why no ultra torque?

I thought you gonna missed tightening one of the studs on LHS. But video is cutted and its tighten 38:06

Hi, I find it very interesting but I have a problem, I'm from Spain and I do not understand everything. A translation or substitution of the video would be perfect for me. I would appreciate it, greetings.

Why don't you just use a solid corner seal? just out of curiosity.

instead of the 10mm bold... why not just use a bigger bolt?

Will a rotary engine burn kerosene?

Do you make lower compression rotors for RX 8?

Forgot silicone on back iron

How much is to build something like this

I want to know what tattoos are under that sleeve...

Saya suka mesin rotary, saya ingin belajar darimu. Mau kah engkau mengajari saya.? Jadikan lah saya muritmu.

SORRY BUT LOOKS LIKE A HAIR LINE CRACK ON 1 OF THE MAIN ROTA BEARING OF ONE OF THE ROTA THE RIGHT 1 AS IT GOT PRESSED IN

Did all that cnc work but decided to bridge on the irons by hand 🤦🏽‍♂️ when the housings gets full of coolant we will know why and you put it on video 😂😂

Now I know where I'm sending my next engine to (20b)

This was oddly soothing.....and informative- right on!

I really am amazed by the stash of rotary engine parts in the background.......wish I had them.

very interesting video for mazda rotary engine fans very good 100%

I truly enjoyed your video and I have a passion to learn how to build the rotary engine in street and race application. I'm a huge fan of the rotary and I have an RX 4 that I'm about to restore.

How much engine like this cost you guys doin all the work?

maybe you have done this by now but why don't you have the studs made with allen key in the back end so that you can just use allen wrench to screw the studs down? Allen or torx......

loved it, good inside look (dat 1/8th of a turn past the click lol)

Studs should’ve been standard equipment on rotary engines from the Mazda. You guys should have the manufacturer of your studs make a hex at one end of the stud to help with installation.

What's different parts have rx7 to rx8 the two engine are 13B. But rx8 is it a renessis but internal what's part are compatibility and what's parts not ?, U can mix part rx7 whit the renessis ?

在庫の凄さに驚き、加工の独創性に驚愕しました 凄いですね、ポートをマニシングで削り出すとか驚きです ローターも削って軽量化とか、ハウジングの加工も面白いです 逆に思ったのが、アペックシールとかサイドシールとかの クリアランスとか材質とかの疑問点ですけど、見に行かないと判らないかな？

I think plenty of people now have proven that porting a rotary is a waste of money if your going to put a turbo on it. Just spend you money on a bigger turbo!

If you drop a tip on that back rotor when facing down, get a strong magnet and run a old apex own it to magnetize, fetch it out.

Hey guys, love this video! can i ask what brand of spex seals you used?

did u just put a whole motor together in like half hour? fuck me you work fast

how much for a rebuilt engine for a rx8 2004 or how much to rebuilt one if i take the engine out and take it to you

Are the side plate re-coated before assembly or do you leave them bare metal after lapping?

Hi Adam, what glue did ya use for corner pieces? Video on how to cut and fit side seals is a popular request.

Your videos make me fall in love with rotary engines more and more everytime. Thanks for the posting these and keep up the good work!

hey man, just a heads up your settings are set to 'youtube kids' therefore comments are blocked on your newest videos. 👍🏽

I didn't see any sealant on that back plate bottom legs. Or is it not needed?

rotary bob ross

Why use lube on only one side of rotar and not lube between the e-shaft and rotar

great video , now I will have to save money for rotary swap in my NC Miata like Mad Mike , lol

Porting on that is horible.. bridge went into water seal jacket

i like how clean and detail he is with he's build's ....i wish i had one of he's build enjines. .

how much do that stud job cost including the parts ?

awesome video im looking into buying my first rotary motor car looking to buy a 09-11 rx8 since it has a third oil port seeing as the 04-08 had a loss of compression from wear only having two oil ports making the motor wear very quickly. is this correct. also you make building these look easy I hope my first tear down and rebuilt will be as easy thanks guys

Awesome video. Extremely informative.

Hie there, i need your help am in Botswana (Africa) i need to buy engine rebuilt Kit and i want to order through Ebay. am confused now because the is 4 port and 6 port kit all i know is that mine is just manual 6 gear. i have been following on youtube and you helped me a lot on my car. the car wont start now (low Compression). Thank you.

nice tattoo m9 and good video

I have a dumb question, don't you need to use some kind of gasket in between all those plates??? How much would it cost to rebuild 1992 mazda rx7 engine??

that was beautiful

Nice work and explanation of your build and honesty hopefully one day I will have my 13b rebuild by someone that has your knowledge.

Watching this shows you need a rebuild for high horsepower in an rx8. Don’t bother fitting a turbo until you stud and put 2mm apex seals in.

Your dad sounds cool. Mine moved away so i bought a 1st gen with s513bt conversion. Back in 2001 at 18yrs old in nsw.

that bridge was on the piss look at the gap between it and the water seal.

I love the information I'm hearing and seeing in this video. however, I have to ask, why did you port the bridges so close to the water jackets? They are cut within a few thou of the o ring lands and look fairly thin. Maybe it's just me, I don't know. I've ported a few 13B & 12A engines including my own and I stay within 1.6-2mm away from the o ring land. No talking about your port style, to each his own. I just saw that and had to ask about it.

The Brinks Modifcation....double your horsepower...halve fuel consumption,...stop compression leakage....lower exhaust temps. By 600f.

Couple of things.. When machining and lapping the plates, do you also correct the depth for the water seals? No mention of nitriding.. If someone is concerned with durability and has already paid for studding, surely they would want nitriding and probably cryogenic treatment also...? Couldn't you achieve a larger port size, flow and match with CNC?

The part of me that wouldn't want to replace the engine often wants a stud kit.... But I shudder to think how much an engine like this costs, even WITHOUT the porting and oil modifications. If it wasn't terribly, it'd almost be worth doing to an engine that's otherwise stock, because it's not like Mazda's making blocks anymore, and the longer you can make a block last, the better.

He’s gonna two step 10,750 rpm?

@32:00 you missed stud tightening of the next stud after your pre rear housing fitment 3o'clock stud 😥 and went straight to the 5o'clock stud...

approximately what would be the cost of this engine but without the bridge port and just going with a NA build instead of turbo,, keeping all the reliability upgrades, the primary porting, all the bigger seals. I want something I can really get on and beat up without worry of blowing out a seal or popping a stud but want to look at getting a good hp number from NA tuning (want to see 400-450 but may settle with a 350whp if it becomes too extensive to get over it)

Which 13 series is the best to build up NA a 13b or a Renesis? What is the max NA horsepower possible? How do you feel about Aquamist vs using alcohol ?

awesome video, these are really helpfull. I just got 1 good question that i wanted ti kniw for some time now, and it is what are the best factory 13B's and 12A's engines out there for like building power? and why if its ok. Thanks in advance. :)

when you guys do the lapping on the irons do they have to be re-coated with some of the material being removed? I admit I don't know anything on the process of lapping irons I'm only asking because I've read some people say it's a must others don't.

i actually have a question or two, at the very start of assy, you put some kind of lube on the stationary gear? what was this called? Also. what type of silicone sealant are using or can i just use any old automotive silicone sealant? Many thanks for your time. Phil.

Great build video. Why not do all the studs with the back housing off? It should be easier to tighten them and make aligning the back plate easier. Also, why not have an Allen port in the end of the stud so it can be tightened with a Allen key type wrench? Thanks for your patience with my questions.

Thanks. I've always been interested by the rotary engine. Now that my boys are older I'm looking to put something together with them. I think a rotary might be the way to go. Thanks for these videos. They will be invaluable as time goes on for my project!

I would love to see a how to video on how to assemble a rotary engine. Love your take and quality of work.

Upon torquing the studs to specs, is there any shrinking to the studs?

Can the 20B also get the studding process? What would the price difference be on a 500-bhp 20B street motor?

Very good you are great

Therapeutic

Where you located I am interested and what is the cost?

Nice to see im not the only one who uses honda bond on rotary housings 😂

Thinking my 67 beetle need Rotary swap.

your style of building engine than anyone I've seen on this site I never know stud could be used what is the back of my mind I was wondering if it could thank you for confirming it

Damn talking rotary is like Greek to me, but well explained and now I'm a rotary expert, thanks!

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