Mazda 13b-rew 3rd gen rx7 race engine

[iamxeddiex]

That was funny........ 99.9% of people are ignorant about the rotary motor. I have a rx7, it's more reliable than a v8 chevy and smoother.

[willienesses]

LOL youre a knob

[KeeT4Life]

my eyes and ears almost exploded^^

[deadfaithful]

the first OHC engine came out in 1879

the first OHV engine came out 1949

the first ROTARY engine came out in 1957

a piston just applies the force of an explosion with better efficiency than a rotary, in a rotary the explosion happens and has to push a triangle to the side, it doesnt make any sense, the compressive force on a piston is more direct and as such gives greater power, not to mention its easier to cool than a rotary

[MrPervost]

@deadfaithful Yeah but with piston you have to convert up-down movement to a rotation movement with a crankshaft, which leads to a loss of power. In that sense, the rotary is much more efficient as the ''triangle pushed to the side'' is already in rotation. + the rotary has fewer moving parts. For the cooling it's obviously harder, but thats just a matter of a bigger rad and intercooler(if youre running a turbo setup)

[rotaryturbo88]

@deadfaithful Quick question, if the piston engine is more efficient then why in the same time period does a 1.5L or 1.6L piston motor without a turbo only make around 102-127hp but a 1.3L rotary without a turbo make 140-160hp, in fact, i think that the piston motor had to be 1.8L and bigger to finally pass that horsepower mark on stock production cars???

BTW i own an 88 10AE Rx7 as well as a 2000 WS6 so i like both but i dont know why one would say the rotory is less efficient. different, yes

[bmx4637]

@rotaryturbo88 cuz the rotary works more like a two stroke. It produces more power strokes per revolution of the crank than a piston engine. This gives the Rotary an awesome power to weight ratio compared to piston engines. A good way to compare the two engines is to double the rotary displacement. In your case a 1.3L rotary is comparable to a 2.6L piston.

[deadfaithful]

rotary engines have inherent problems...

like being basically useless,

who wants a motor that revs 15k and puts out 200ftlbs,

my axle nuts require more torque,

but they do have a use for the people who just like the sound i guess

[whatUsaybob]

@deadfaithful Someone who can't fit a 7 liter V8 in a car and tossing center of balance out the window and into a lake.

"torque is only useful if you can get it to the ground", There ya go. 200 is more then a civic and just shy of a 4L V6.

[deadfaithful]

@whatUsaybob if by 7 liter v8 u mean the ls7, please try and find something bad about that engine, its a 400 pound motor that takes less space than a OHC v6 and puts out 500hp/480ftlbs

as for the 4.6L i guess it just goes to show you that if you use the riceer OHC setup you can even make a v8 powerless,

i mean come on, mustangs need superchargers to compete with N/A GM motors

[whatUsaybob]

@deadfaithful And they always will, the mustang is heavy as shit, lol.

Horsepower 505 (373 kW) @ 6200 rpm

Torque (lb-ft) 475 (644 Nm) @ 4800 rpm

Engine redline (rpm) 7000

Those numbers are pretty low if you ask me. The LS7 will always make more lowend then topend, so its got a pretty narrow powerband. MPO, I wont use it to race, but it's great for the trophy truck I am going to build at some point. :)

[deadfaithful]

@whatUsaybob yeah right narrow torque band, ive seen dyno sheets show it starting at 350tq/2000rpm going up to 500ish at 4400 and finishing at 7000 with 450

the horsepower just climbs straight up across the sheet and almost levels off at 6000 and is the same at 7000, and an aircraft doesnt need torque to get the propeller spinning it needs horsepower to overcome the parasitic loss, a car however needs that grunt of torque and rotarys just cant supply

[whatUsaybob]

@deadfaithful The point of the rx7 is as it's name says, 'rotary experiment'.

You guys give a lot of credit to an engine that has been around for over 200 years. Look you go and use your V8, I will use my engine, i'm just sick of you pistonheads always saying this engine needs to be tossed. It's new, and mazda/nsu own it. No other development is being done outside of them.

This design is 40 years old, piston engines have been around since the 1800's, no shit they work better.

[jeppoification]

@whatUsaybob RE stands for rotary engine

[whatUsaybob]

@deadfaithful And they are not useless, they get no attention in the auto industry. But they do perfectly fine is aircraft applications. Hell snowmobiles still use them.

Mazda just made a car with it to make it different.

[qotsaandsoadfan1]

bored that day?

[gygyjepcaru]

gay?!?!

[hasanozok]

Wua psss wuaa pss, wuaaaaa..

Than you have your engine like that in your hands . )

[iamachickenduck]

LOL

[lameyamaha]

are you happy to make noise like that.????

it sound like a vtec to my hears?????

NOTTTTTT !!!!!!!

[Nessaholiclover1]

Haha, still see this video and still cracks the hell outta me

[SR4410]

lol! golden!!

[DwhNeo]

pdpdrummerboi, one thing i have to say is, well.....u fail in life sub. ended :p

[pdpdrummerboi]

@DwhNeo You my friend are a fail period. Ended. Noob. xD

[boocraft]

holy shit the blow offs!!!

[ghostofperdition00]

Hahaha! Nice

[Nessaholiclover1]

fucking retard, here i am looking for videos of rx-7's. already seen like 17, and then u come with ur retardness, fucking funny, LMFAO. Good job man props

[ftt909]

lmao!!!! fail!!!!! but a very funny fail!!!!!!

[timgman86]

Oi bro, settle down with the boost, you mite blow a seal :P

[noob5000000]

Beast.

[nabbarros]

no comment

[supercars01]

Need bettr blow off

[bass1134]

very fast hand! i wonder how you train it......

[Datorturken]

lol

[JeefCakes]

He trains it by Wankeling, regularly.

[bass1134]

lmao! good one. XD

[Kaizhoku]

hahaha really funny!

[Fission777]

Almost looked like he was trying to make it spurt teh semen.

[rickyguerra4]

fuckard

[willowi28]

you are a fucking asshole bitch

[eutomonation]

actually it revs to 9k rpm and that sounded like a dirt bike

[buzzin92]

i dnt know why you put that the engine revs at 15K RPM, but that only sounded like 5 to me, maybe you should oil your vocal chords :/

[gogugogu]

+ favorite

[gogugogu]

looooooooooooooooooooooooooooo­ool

[squiddy112]

holy ballsack i have got to get me one of those.

[rotormotorrx7]

LMAO!

[alexwileman7n]

wtf....

still, his sound FX made it funny, but hat a twit!

[rockyzee]

damn.

[poid9x]

loser

[miamicrix]

too damn funny! lol

[muddwell]

where do you live ? I want to punch you ..

[squiddy112]

haha dude i think thats the new a'pexi blow-off lmao

dude that was really funny hah. definitely something i would do :)

[Solbreadd]

ROFL wasnt expecting that

[ghettogothcowboy]

Epic

[ssims1987]

damn, what kinda blow off valve is that?!

[originalrhombus]

funny.

[pdpdrummerboi]

All day my dude. I hate it when these lame ass dudes try to play the race card like it means somethin' to me. Lol! I laugh at dummies like them. HAHAHAHAHA!!!

[pdpdrummerboi]

Yeah jack ass! I like how you roasted your side seals. tisk tisk... I wonder what your apex seals look like. Probably burnt toe nails, thats what you get you stupid fuck and you not supposed to push rotorys past 11.5k rpms unless its a full drag car dumbass. Some people need to be shot for the shit they do to there Rx-7's man. Gay fuck!

[visionrx7]

Dude, chill the hell out, its a joke.. I was spinning it by hand, omg! Its not a 15k rpm revving engine, just your every day street ported 13brew! The title was a JOKE obviously. Did you even watch the video, haha?

[updogs]

@i lol d

[shimy182]

wow you can see all that on this video quality? you know it can just be oil...

or are you just trying to show off ur e-penis?

[pdpdrummerboi]

Duh Shimy. I can see the vid quality. I know he is spinning it by hand. I know all of this. His motor is fucked and we hav already settled the comment. Now on to you who has to run his mouth. "E-Penis"! That right there says you have no life. I know about rotories and have been raised building them. So jump off a cliff before you make yourself look very bad on the web dog.

[cruddbucket]

Haha "dog" are you black or something variant?

This video is wicked, 5 stars m7+1!

[pdpdrummerboi]

Yes i am black to the core. Im kinda glad you asked so everyone else one the web knows that im black. Like that really makes a difference in what i say to certain dumbasses. But that was the smartest comment ive gotten since ive been in this litte Internet arguement.

[cubiiinboy]

tellem bruh.

[visionrx7]

honestly, the engine is fine... it's been running for 2 years since that rebuild. None of what you said was wrong with it. I rebuilt it, because the front side housing coolant passage cracked, and that's all. And, btw, it doesnt even have side seals or any seal for that matter installed in it on the video... it was a bare rotor in a bare housing before cleaning and rebuilding. I still don't understand why you're so pissed off about a joke video.

[pdpdrummerboi]

Im not pissed at you. I was pissed at cruddbucket cause of his ignorant ass comment thats all. BTW, How did you manage to crack the coolant passage anyway???

[visionrx7]

The relay for the fans died while a friend was driving it... he called me to tell me "coolant was spraying out from under the hood"... the temps were around 130 Celsius according to the power fc. The extreme overheat cracked it... I was lucky to get away with just that cracking, haha. Im not trying to blame my friend.. it wasn't his fault at all... stupid relay, haha

[damonlandsdown]

@pdpdrummerboi your a dumb ass :O hahahaaha

[knockout194]

@pdpdrummerboi he turned it three times how the hell did he fuck up his seals? u can rev rotarys to 15k on the street, ur gonna be buying a lot of gas but y not. jackass

[daddyboost]

gay boy

[cdaddy415]

Two things wrong with this vid.

1) Shift a way too close together for a rotary

2) YOU SOUND LIKE A RETARD!!!!

[ssims1987]

its a joke. Dont take life so seriously and you will be alot happier.

[RotaryKnight]

where the hell is the bridgeport/PP brap brap brap brap....

[ChrisHallett83]

Nice blow-off valve noises on the 'gearshifts'!

[TommeyLeeReed]

My rotary engine is a powerful version.

[mopar43v3r]

we dont care!

[Che9009]

WTF

[arroy624]

thats 15 kinky rpm...

[lululaserpiente]

nice sound!!!!

omg

[latinchris305]

lol pointless video to post on youtube...but good for laughs

[afireinside200]

hahahaahha omg lmfao

[alscort93]

Dee DEE DEE

[v3eclipseR]

rb24*

[v3eclipseR]

you can so pull off sounding like an RB25,VQ35, and 2JZ motors! fuckin awesome!

[autostuniados]

nice engine... really 15k rpm? like my cbr 600!

xD

[pikachu50]

totally done that before.

[jakediamonds]

HAHAHAHAHA!

[rxx13bee]

thats gangsta shit barp barp barp baaaaaaaaaaaaaaaaaaaaaaaa

[FC3ST2AE]

I had to laugh... good job!

[2007MickE7002]

retard

[J3n555]

OMG!!!1!1! At least 120000 RPM! Sounds like 500 psi boost

[az112a]

i wonder what 500 psi boost would sound like for real

[j00hz]

Would sound abit like the big bang theory

[Bamchucknorris]

@az112a it would sound like a general electric turbofan engine

[hiboostchosh]

i want me one of them lol

[sanpoke12]

hahaha～

[talaj]

sounded like a bridgeport... maybe im wrong

[kentdoNEthing]

my rotary hero. /o\ lol

[benoitcriss]

HAHAHA

what blow off valve do you use?

[Krannyman92]

HIS FACE

[sprtn1o69]

fukn hilarious!

[Fetus1300]

lol =D

[Peeloffrx7]

500hp?

meanwhile producing full exhaust from the rear end? :D

[pegpen]

u forgot to make a sound when the motor blows

[skyline00001]

Hey, it's a turbo.

[vkotis]

It looked like he hit redline...

[v8killa09]

omg the rpm's are too high you will blow the motor for sure

[Skip2MyPou]

LOL! that's so intense!

[fc3sghost]

You need to clean that rotor man.

[kitt13b]

What the Fuck!

[RotorDemon]

HAHAHAHAHA!!!

[dstylevids]

lmao

[thelegendkill3r]

lol the power

[BeastBoy2k]

i guess we all want to do that really :P

[shmacklepap]

LOL

[trackvisionszero]

That'll dyno at one man power!