Why Do Rotaries Suck?

[rotarytt]

My R32 GTR makes 300awkW with 160k kms on it. It's been like that for well over 5 years and since 112,000kms, at the least (as far back as I can trace it). The engines are durable if looked after. Just like rotaries are durable if there's no detonation around and they are looked after.

I'm not saying any can't surpass that infact a majority probably do. it would take me forever to find the article. something along the lines of an oil pump that has to be upgraded. something internal to do with oil??

sorry that's very vague.

it just said if you buy basically your car (specifically). with 100,000 expect to rebuild it. surely someone on here knows what i'm talking about.

Actually the r32 gtr was the first car i recall wanting when on my p's but i got something else that i crashed a whole bunch of times anyway so it's better i didn't get it.

it has one of the VERY few 4wd systems i like.

[arbess]

Wow I cant believe this thread is still alive.... it's full of personal attacks.

I just read Page 51 - interesting.

I think, if my memory serves me correct, I posted here back in the pages before 20.

In the last page there has been some good comments on both the rotor and piston engines. both have their strengths and weaknesses. I suppose I'm allowed to comment (haha) because I was lucky enough to own both RB26 and 13B.

I personally enjoy the RX setup. This is, I am pleased with the performance of the car versus it's weight. More so, the suspension on my RX-8 is setup so well for QLD roads. The useable power was well matched to the average daily driver.

I enjoyed the GT-R but there was too much power for the road - even as stock standard. The package was good, but the RX-8 was still better, though it sure had me hooked as a driver.

Engine wise for both, like others have said, as long as your maintain the engine accordingly, they are BOTH FKING GREAT ENGINES! Yes sure the 13B needs a little more attention and knowledge to keep it turning around happily, but thats not a downside to the engines capability.

The only thing I have found to SUCK in rotors is the lack of torque, which I believe will be increased in the next installment, 16X.

For the engineers out there, Moments = Force x eccentric distance. This is somewhat the basics of piston engine, which makes work "easier". Whereas rotaries, hmmm... hard to explain. Where I'm getting to, rotors have such a unique way of operating and in my opinion, makes it that much more special to drive. -im not a mech eng (a different type of eng).

So for all the haters out there, try and think of the amount of work that went into creating both these mechanical marvels - could you do it? If you think your need education to comment, think again, this is an open forum. The only thing you need to comment here is a bit of self control and some discretion. Personal attacks is not answering this AGE old thread, but rather filling up the gap in your day for typing it (trollllllller). lol

For the record, I would again buy a GT-R or an RX as they have proven to be cars that:

1. Look good

2. Go fast

3. Can turn

4. have the X-Factor.

-No more fighting boys and girls - my balls are the biggest in the world, end of story.

[Messiah]

I fail to see how people can call rotor's unreliable and then compare them with a GTR lol

As i have said previously, i have seen more broken oil pumps and spun bearings on RB26's than i have broken apex seals

Messiah - what sort of mods did you compare on both cars? and what was your desired result you were hoping for? hp figure? 1/4 mile et?

I wouldnt say that the risk is any higher on a rotor than an RB26. A mate fo mine owns BLOJOE and he absolutely rapes that engine every time he takes it out. Lino and the guys at Maztech have seen the way Joe drives and are absolutely astounded that the engine is still alive!

I guess it all comes down to maintenance

Sorry mate, i forgot to come back and look at this thread again.

Both cars were dead stock, which i think is the best basis for comparison, as in theory you can get any car to perform in any way with enough money.

As for desired result, i had none. Both cars appealed to me in different ways, i thought i'd give them both a spin and see which one i enjoyed most and felt i could get the most enjoyment out of long term (so daily duties and sporadic tracking). Dont care much about times or power, instead it was about enjoyment.

As far as the comments i made about modding go.

For piston engines i was thinking boost-->headwork-->forgies--> increased disp --> engine swap as a progression

for rotaries, i believe the equivalent is boost-->porting-->upgrading seals etc--> adding a rotor (going a 20b).

As going beyond say a bridge port really ups the stakes (as usually its accompanied by big turbo's, high boost, increased fuel usage and speeding tickets) I perceive it as "riskier/more costly" but not necessarily in terms of risk of catastrophic mechanical failure, but instead the increased maintenance required. Whilst all engines should be properly maintained. rotories do require that extra bit of tlc

[Birds]

Why do people comment on: the length of this thread, the arguments that went on in it, how stupid it all is, how it's still going on...

Then go and put forth their own opinion on the topic...

And all the while not realise they've just dug it up from weeks/months ago?

[martyt]

Ahh love the fanboys more than ever.

Remind me of the results of the last Superlap? Which placed higher? Was it a Skyline or an RX 7?

[rotarytt]

Ahh love the fanboys more than ever.

Remind me of the results of the last Superlap? Which placed higher? Was it a Skyline or an RX 7?

http://www.superlap.com.au/2009/?page_id=20

got any other results because this is what comes up on their website

[yep33]

yeah i can`t believe i `v followed this for 52 pages lol

i`v got to much spare time

[ylwgtr2]

i must jump back into this and say.....everytime i drive my ute i think to myself damn these engines are so smooth and vibration free....

[martyt]

http://www.superlap.com.au/2009/?page_id=20

got any other results because this is what comes up on their website

Ahh

5 K Sasaki Pan Speed Racing Mazda RX-7 1:32.4540 +0:01.8670

6 Kinoshita Mitsuhiro Pro Staff R-Magic Mazda RX-7 1:33.5050 +0:02.9180

7 Mark Berry Advan/Hi Octane Racing Nissan Skyline R34 G 1:34.1090 +0:03.5220

8 David Loftus BSM Motorsport Nissan Skyline R32 G 1:35.8760 +0:05.2890

Damn those "Rotaries that suck" they didn't break down, run out of fuel, blow an oil leak or suffer any other failure the fanboys here keep moaning about.

[MRSAMO]

My R32 GTR makes 300awkW with 160k kms on it. It's been like that for well over 5 years and since 112,000kms, at the least (as far back as I can trace it). The engines are durable if looked after. Just like rotaries are durable if there's no detonation around and they are looked after.

Mate what's your fuel consumption like per 100km?

[MRSAMO]

Wow I cant believe this thread is still alive.... it's full of personal attacks.

I just read Page 51 - interesting.

I think, if my memory serves me correct, I posted here back in the pages before 20.

In the last page there has been some good comments on both the rotor and piston engines. both have their strengths and weaknesses. I suppose I'm allowed to comment (haha) because I was lucky enough to own both RB26 and 13B.

I personally enjoy the RX setup. This is, I am pleased with the performance of the car versus it's weight. More so, the suspension on my RX-8 is setup so well for QLD roads. The useable power was well matched to the average daily driver.

I enjoyed the GT-R but there was too much power for the road - even as stock standard. The package was good, but the RX-8 was still better, though it sure had me hooked as a driver.

Engine wise for both, like others have said, as long as your maintain the engine accordingly, they are BOTH FKING GREAT ENGINES! Yes sure the 13B needs a little more attention and knowledge to keep it turning around happily, but thats not a downside to the engines capability.

The only thing I have found to SUCK in rotors is the lack of torque, which I believe will be increased in the next installment, 16X.

For the engineers out there, Moments = Force x eccentric distance. This is somewhat the basics of piston engine, which makes work "easier". Whereas rotaries, hmmm... hard to explain. Where I'm getting to, rotors have such a unique way of operating and in my opinion, makes it that much more special to drive. -im not a mech eng (a different type of eng).

So for all the haters out there, try and think of the amount of work that went into creating both these mechanical marvels - could you do it? If you think your need education to comment, think again, this is an open forum. The only thing you need to comment here is a bit of self control and some discretion. Personal attacks is not answering this AGE old thread, but rather filling up the gap in your day for typing it (trollllllller). lol

For the record, I would again buy a GT-R or an RX as they have proven to be cars that:

1. Look good

2. Go fast

3. Can turn

4. have the X-Factor.

-No more fighting boys and girls - my balls are the biggest in the world, end of story.

I think the RX8 has done pretty well considering the competition and for the performance in that it's only an NA. The turbocharged and supercharged versions however hasn't quite lived up to the high expectations that the RX7 TT left behind.

The way I see the RX7/turbocharged rotaries is that it is more suited to racing applications than street (high performance=shorter life span).

That's just the way it is.

[GT-R32]

Mate what's your fuel consumption like per 100km?

Depends on circumstances and average km/h. Typically around 15L/100km. My FD was around 17L/100km under the same conditions.

This is 90% of my driving which is city.

[ido09s]

Mate what's your fuel consumption like per 100km?

They would be about the same as a GTR with similar mods. And to be honest probably better in situations where each car has been extensively modified.

[MRSAMO]

RX7s have always been thirsty buggers for as long as I can remember.

I wouldn't mind 300kw and 15l/100km!

[GT-R32]

RX7s have always been thirsty buggers for as long as I can remember.

I wouldn't mind 300kw and 15l/100km!

With stock cams and proper tuning etc fuel consumption shouldn't increase.

I've had 300rwkW rotaries (street ported, mind) and they were not much worse than my FD due to tuning.

[Brocaine]

I've got an FC and a 32 GTR. Both make reasonable power, both run Power FC's and both get between 12 and 15 litres per 100km. I don't believe rotaries are any worse on fuel than piston engines if you're on the freeway etc. Once you load them up, be it around town or whatever, they do use more fuel, but not massive amounts more.

[martyt]

I've got an FC and a 32 GTR. Both make reasonable power, both run Power FC's and both get between 12 and 15 litres per 100km. I don't believe rotaries are any worse on fuel than piston engines if you're on the freeway etc. Once you load them up, be it around town or whatever, they do use more fuel, but not massive amounts more.

Mate, Fuel consumption was thrown up before and shot down like the BS excuse it is. Fact is the official government fuel consuption tests showed the FD that was sold in Australia used less fuel than the 5.0l v8 commodore. Under the same tests I think it was only a bit thirstier than the 200sx of the day. So one can Assume that the same year's skyline would not be much more efficient. According to anecdotal evidence (HPI magazine etc) the GTR would use the same as a v8 commodore.

[GT-R32]

LOL similar to a 200SX? My FD got nowhere near as much (within 10%) out of the same amount of fuel as either of my GTRs around town... From a car that's 200kg lighter. My stock 12As maybe close, but definitely not the FD. Except perhaps on the highway where you can get down around 10L/100km. And don't get me started on any of my bridge ports in cars that are nearly only half the weight of my R32 GTR (and one was injected!).

Oh and fact is the FD passed official emissions testing of the day too. Try get an untuned one over now.

[rotarytt]

the rx8 can make 300kw atw with a turbo easily and it's legal. my cars not making any better than 20lt 100k's around town and half that amount on the highway. its all dependant on how you drive it.

[UW8NCY]

rotors sound crazy go hard make power but end of the day are not as reliable as a piston motor i dont care what all the rotor heads say they use oil

blow seals chew fuel and the list goes on. but i still like them just wouldnt own one