Aces High Bulletin Board
General Forums => The O' Club => Topic started by: moose on March 09, 2003, 03:17:24 PM
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Looking for any other rotary lovers. Just got back from buying this puppy in NC
1989 Mazda RX-7 Turbo Coupe
13BT 1.3L Rotary engine
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Nice,
but I got a questions how come there is snow on the left side of the pic and none on the right?
Only way I could say is you possibly have a water line running there or, the decomposing of the pine needles was giving off enough heat to melt the snow quicker..
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...or someone actually shoveled the driveway.
I'm personally a fan of "bury the car in the snowbank" method of parking.
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the snow on the left is all the stuff we shoveled?
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What's the equivalent cc of the rotary engine to a normal 4 stroke? Do they still have problems with the rotary blade like seal (like piston rings) burning out?
Norton F1 motorbike had a rotary engine in too, though with the gyroscopic effect of being leaned around corners made huge power variances.
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nice car moose, just dont run synthetic oil in it (im serious)
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Nice pickup moose - rotary engines scare me.
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yes the rotary seal is there main problem,,,,plus rotary motor mix crude oil in with its gas,,like a 2 stroke motor does,,,one of the reason they keep being banned by the envirmental people,,lol,,bad polution,,but they are quick and very light,,,but a dieing breed of motors,,too bad,,i think there very cool,,i know a guy who built them for a living,,very costly motors to pump up
most people are taking mazda rx7s and sticking 302 v8s in them,,they fit under the hood air cleaner and all,,just flip over the crossmember,,and all the wiring hooks up,,because mazda is pretty much ford,,lol,a mazda rx7 with a stock 302,,,225 horses,,,will have the same power to weight raito as a ford ac cobra,,,will run allmost 12 secs in the quarter mile i hear,,and thats just stock,,lots cheaper to build up a 302 then a rotory motor,,and 302 will last longer,,,one of the reason there all going over to v8s instead of the poor dieing rotary motor,,good motor,,just spendy to build
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I wouldn't say Wankels are dieing; Mazda is continuing their development. In new Renesis (http://www.der-wankelmotor.de/Motoren/Motoren_Mazda/Mazda_Renesis/mazda_renesis.html) engines the in- and exhaust canals/manifolds are moved from sides to the ends of combustion chambers.
I heard that those engines can stand plenty of RPMs but I also heard that exhaust pipes are quite pricey.
Ex co-worker had one and he said exhaust pipes were having somekind of heat resistant coating and he thought that was the reason for the high price of that part.
Nice animation of Wankel engine's cycles:
http://library.thinkquest.org/C006011/english/sites/wankel.php3?v=2
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Hey moose,
She looks nice, congrats!!
Yeah, I got a 94 fast as f@#k. I love it. I'll have to get some pics.
mars01
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Good times!
Those are very quick cars. Nice handling too.
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Pops had an RX-4 for years. Drove it down from AK when we moved. I had an '80 RX-7 for a few years myself. They fly well, but the landings are a squeak. Would love to have a Miata with a Wankel in it!!!
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Do you get a torque pull to the right Moose?
:D
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Originally posted by mars01
Hey moose,
She looks nice, congrats!!
Yeah, I got a 94 fast as f@#k. I love it. I'll have to get some pics.
mars01
oh god, the FD3S
My brother was telling me about that v8 conversion hyena. i thought he was joking, because he's a serious gearhead when it comes to muscle cars. while i was driving to NC, he was otw to nebraska with my father (king mechanic) to get a 440 engine for his charger.
i caught the family car interest, but i'm the black sheep because i like imports.
this particular car just had the engine either rebuilt or replaced. trying to make sense from the reciepts the dealer included with it proving the 13BT wasn't old.
there are a few things i noticed on the ride back which i'm looking to find an expert to ask about. right now this is the checklist i have compiled:
[ ] Turbo downpipe cracked
[ ] Throttle-position (idle control) sensor not working properly (car idles at 2k - 3k sometimes)
[ ] Right door automatic seatbelt works intermittently
[ ] Right door window switch dead
[ ] No power to electronics when off (clock resets, no interior lights, etc etc)
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Originally posted by SirLoin
Do you get a torque pull to the right Moose?
:D
i will research this and get back to you on it :D
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ya,,,my cousins had a 4 barrel carb,,3 inch exhaust,,it was a 13b,,could get about 9,000 rpm out of the motor,,was very impressive,,fast,,,drove for years,,but!!,,it didnt have the life span it should have,,,they allways blow that main seal,,there big down fall,,othere than that, they get great gas milage,,there fast,,and light,,just expensive to work on and they dont got the life span that a 4 stroke motor does
i was thinking of ways to get the rotary motor to last longer,,,sence crude oil is hard on the motor to burn and lube the rotary,,i told my cousin we should block the oil tubes that feed the crude oil into it,,and mix the gas with much better burning and lubing 2 stroke oil,,,of cource we never tried it,,but it was a very good idea if some one had the time to do it,,,sence rotary is pretty much a 2 stroke,,it would boost horse power a little i think,,,and make it last longer,,,but who wants to mix there gas all the time?,,hehe,,it would smoke,,but crude oil smokes too,,and the rotary doesnt need much mixing too keep it alive,,just a funny idea i had one day,,while we were over talking about motors
but after his motor blew for the 4th time sence he owned it,,,{rodding it of cource},,lol,,its a 1981 i beleve,,he had it for a long time now,he is going to put the 302 conversion kit in it,,,with 300 horse summit motor,,gives him more power to play at,,and only half the price of a new rotary motor,,and twice the horses,,with only a 150lb diffrence,,doesnt even squash the springs at all,,and still handles like its on rails,,comes down to cost and power somtimes,,lol
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yeah, i'm really worried about the life of this engine.
what i need to do is find a mechanic specializing in the wankels around here. there was one in NC who did the engine swap/rebuild/whatever but we didnt have time to stop, which i'm kicking myself now for.
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My brother was telling me about that v8 conversion hyena. i thought he was joking, because he's a serious gearhead when it comes to muscle cars.
your brother knows what he is talking about too:),,thats cool,,not many have heard of it,,its cheap and you will trash any fast and the furious wanna bees out there,,lol,ya,,there very scary cars with a v8 in them,,lol
he decided to do it,,after he put more than 6000$ into his rotary motor,,and i only got about 3000$ into my mustangs 351c 4v,,down a nice curvy road,,and he couldnt loose my big old beast,,because i could out power him out of the corners,,and my car can corner great too,, and his car didnt out corner me anuff to be able to take advantage of the corners,,like a spittfire racing a bf109 in a vally,,lol,,he just didnt have the power to get away,,he could turn like hell,,but it didnt help him in the end of the race,,very fun:)
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ya moose,,they are spendy to work on,,we had one guy in are area who built them,,he died,,and one of the reasons my cousin is thinking of going to 302,,cheaper for new motor,,faster,,and still get ok gas milage,,about 15 to 20 on freeway in that little light car,,aint bad for allmost 300 horses under the hood:)
moose you need to find a good honest person to work on a rotary,,because they will give ya the shaft on parts and prices,,lol,,i seen some very fast ones that guy built before he died,,,he has his rotary motors locktight,,so you couldnt take them apart again with out busting them with a sledge hammer,,once they burned up,,that was it,,throw it away after it blew,,lol,,,but his motors had a ungodly 450 horse power supercharged motor or twin turbo at allmost 14,000 rpm!!!!<~~thats why he had to locktight the motors,,so they didnt fly apart,,,,too bad he passed away,,he sure did have some fast damn cars,,lol,,some of his mazda had tube frames,,he was a serious gear head
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Moose, a couple BMW members of our forum also have Mazdas, they frequent this website, apparently its a good BBS for any questions you might have such as engine life:
http://www.mazdaworld.org/forums/index.php?
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how much do those things weigh?... I rode in one in Texas (a convertable) that was for sale and had a 350 chevy and overdrive auto in it. it was not particularly fast. I assumed that it weighed around 3,000 or a little better. The jensen Healeys and Austin Healeys with V8's in em were considerably faster. Coulda bought the car for 5,000 but It woulda been a squeak to smog in Ca.
lazs
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Nice, Moose. I had an '85 RX-7... I wish I still had it.
They changed the body style the year after mine, I think, so I don't know too much about that model. I had a lot of starter problems, because it was really exposed to the elements. Other than that, it was pretty much trouble free.
Do they still have manual chokes?
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Wooo.. 13B's good motor..and like a few others have said don't use syn. in it. I was going to get a 89 Convertable SE but went for an 02 Miata..
Any how this is where you can get good performace parts at a decent price.. http://www.racingbeat.com
Good luck!!
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Lazs I think they are about 2900 lbs.
Of course they have some things that Healey doesn't, like a roof, chassis rigidity, a modern IRS system, modern brakes, etc. :)
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What's the equivalent cc of the rotary engine to a normal 4 stroke?
cc's too small,,,,now ci's,,cubic inches of a rotary motor is about 80 cubes,,too maybe a 100 ci's i hear,,,,so its a very powerfull small and light motor
ya most mazda cars are about 2800 pounds in the 1980s,,they got heavier during the late 80s,,,,the guy i new,,,his all tube frame mazda{not stock of cource},,lol weight was about 1200 pounds fully loaded,,he told me with the 450 horse rotary it ran about 9 secs,,and a top speed of 190!!! i beleved that it would do that,,,he said he had faster ones,,but they get very unreliable after 450 horses
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The rotary is sweet,
The 93 - 95 versions have the 13b twin turbos. Road and track tested them in 93 and found..
Top Speed 159 mph
0-60 5.2 secs
I can attest to the 0-60 and the fastest I have had mine is 140 with about an inch left in the pedal. potato peeling fast and they handle like a dream!!!!! I parked mine with 50k miles on it and only drive it once and a while now, when I feel the need for speed. Since they stopped importing them it should become quite collectable I hope.
Someone above mentioned torq pull to the right, it is pretty wild you absolutely do feel that.
!
mars01 - MAW Blacksheep