Rotary engines are more reliable than old fashioned piston engines
>>15235710
good joke
My sides are obliterated
>>15235728
N/A Rotaries that are properly maintained are very reliable.
Turbo rotaries less so, but that's mostly the because the FD wasn't designed with nearly enough cooling and heat shielding.
Complete list of unreliable Mazda rotaries:
1) later FDs
2) early RX-8s
3) end of list
>>15235801
eunos cosmo
>>15236063
Quit taking the piss
250ml of 2 stroke oil in your tank for every 25L of gas and yer set.
still wont get over 200k no matter how well you treat it.
>>15236135
My NA FC went well over 200k
Most RX8s do too
>>15236155
> most RX8s
sadly i dont believe this
most were owned by fucking retards
>>15235753
yeah, ok bro
>rotary blows a seal
>still has compression in the other face and the other rotor
>pistonshit drops a valve
>catastrophic failure
why can't pistons compete
>>15236586
> rotary
> blows all apex seals
> can still get enough compression to run at high enough rpm
> piston
> blows all piston rings
> completely fucked
>>15235710
>>>15236586
>> rotary
>> blows all apex seals
>> can still get enough compression to run at high enough rpm
>completely fucks rotor and housings
>Requires basically entire base engine assembly to be replaced
>> piston
>> blows all piston rings
>> Only need a handfull if parts to repair engine
>rebuilt engine goes out and does another half million miles without issue
>>15236932
>Requires basically entire base engine assembly to be replaced
You mean all 3 parts? The ones that can be lifted out of the engine bay by hand?
What a tough job.
>>15236946
considering you literally cannot get new 12a housing anymore, having to replace housings is starting to become an issue
>>15236932
>replacing piston rings
>only a handful parts to repair
you have to literally dissasemble the entire engine if you want to take out the pistons
fucking busriders
I'm thinking about an FB for a project car. Any idea how hard swapping in a Renesis is?
>>15236964
>renesis
why, just drop a 13b from an FC
>>15236963
>you have to literally dissasemble the entire engine if you want to take out the pistons
Nah m8, did it on my old ferd.
>rod knock
>pull head
>pull oil pan
>unbolt knocking connecting rod
>push up through cylinder
>clean up, put new bearing on, make sure rings are still good
>button motor back up, all while still in the car
>bout 6-7 hours of constant work, drive it home that night.
>>15236964
the renesis doesnt like being outside of an RX8. i hear unless you plan to carb it (removing a lot of it's advantages) it can be very, very tricky to get the bastard to run right, if at all. FC or FD engine would be much easier and much better documented
>>15236972
>why
Because depending on the model, the Renesis make 50-100 more HP, and does so way more efficiently.
>why would I want this modern computer when my Pentium 386 does just fine?
>>15236983
Not him, but yes thats only if youre mechanically savvy enough to source your knock down to the cylinder, which isnt very easy.
Its difficult as fuck to fix compression seals on any motor, but dont try to make it seem like thats on avg a 6-7 hour job.
>>15236997
>cars are like computers
dude no
>>15237000
It's very easy, you take the oil pan off and wiggle the fuck out of the connecting rods. They'll tell you which one is the knocking one.
>>15237001
Technology is technology; the march of progress rarely halts.
rotary engines have less things to go wrong and are significantly easier to fix than piston engines.
the bad reliability myth is from americans who cant into rotary and have fucked up every single one in the country.
>>15237005
>whose
>>15237019
>march of progress rarely halts.
Unless youre GM.
>>15237019
Unless we get some crazy super gas in the future, I don't see engines becoming much more efficient than they are now. Compression ratios can only go so high before ping ping ping ping.
Fuck, whats the octane rating of pure hydrogen?
>>15237028
There's always the one dumbass who ends up breaking any new toy he gets.
>>15237019
no anon, thats not how cars work
>>15237046
I'm sorry that reality does not match up with your beliefs, but there's not much I can do about that.
Are carbureted rotaries more reliable?
>>15237066
really, lets see
>Ford is doing great with 351w and 302 OHV v8
>release the SOHC modular
>engines are now making 150 less HP than the ones they replaced
>Nissan VG can take shitloads of boost, up to 600 hp on stock longblock
>release the VQ
>stock rotating assembly shits itself if you boost it over 450hp
another one
>Nissan SR
>ok-tier inline 4 that loves boost
>nissan releases the QR, turns out is shit, no one even bothers tuning it, not even professional builders
there are several stories like this, not only about engines
cars are not computers, the newest version is not always better than the one they replaced
>>15237092
>carbureted more reliable than FI
In most cases, no.
>>15237103
1995 Mustang 5.0
>215 hp
>285 lb-ft
1996 Mustang 4.6
>215 hp
>285 lb-ft
Remind us again how you aren't full of shit.
>>15236959
Why bother if you're taking it out. Just put a 13B in
>>15237141
>four barrel 351w of the late 60's
>290hp
>boss 302 found in late 90's mustangs
>310hp
>>15237112
Carbed anything is more reliable.
It's just more finicky when it's working.
>>15237165
>boss 302 found in late 60's* mustangs
also, the 3.8 windosr in the 95 cobra made 300hp
>>15237172
>3.8
meant 5.8
fuck me man fucking typos
>>15237165
>boss 302
>found in late 90's mustangs
>>15237172
>3.8 windsor
>in the 95 cobra
this thread just keeps getting better
>>15237165
>thinking late '60s gross HP numbers are relevant to anything
>>15237165
>>15237172
>>15237174
PROTIP: the 5.4L modular engine was the replacement for the 351, not the 4.6L. and it shat all over the Cleveland
>>15237181
see below
>>15237187
you are a tard if you actually belive they were not wrongly dyno'd anyway
>>15237041
Over 130, but it's nowhere near as energy dense as regular fuels.
>>15236963
No you don't, take the head off and the sump off and do rings and bearings in-frame I do it all the time at work it's not hard
>>15237005
Or you can take the oil pan off and start the motor, I've seen that done before to locate a big end knock. You just end up with oil on your face.
>>15235742
>sides
You mean apex seals.
>>15235710
Reliably failing when a seal breaks more like it.
>>15237166
I kinda want to agree with this..
Never really had a problem with a carb that couldn't be fixed with either more choke or less choke(starting), or a love tap with a screwdriver handle(stuck needle).
They're also simple as fuck to rebuild. and they just werk
>>15236997
>Computers
Exponential growth
>engines
Linear (if even that) growth
Gee, it's almost like the difference between 10 years of computers and 10 years of engines is so wildly different as to be incomparable. But of course people (idoits) will compare them anyway.
