rx7

just been lookin at rx7's (3rd gen). i've all ways liked them but got a soop insteed which i dont regret one little bit, just wondered wot the common consence's is on them

RX7s are very nice would love one as a 3rd car a little weak if not looked after well but sound fantastic

look and sound fantastic. i need to win the lotto to get all my dream cars

How do the 2 cars compare in terms of performance; acceleration/top end?

BPU supra versus RX7 with similar mods ... what would the end result of this battle be?

i've no idea wot the rx7 gives out but would have the lighter rx7 been abit quicker to be honest but like i said not sure

i have had RX7s for the last 15 years and still have a kit car with a 13b turbo in it. The RX7 is much more composed and agile than a supra. The noise may sound nice for a short while but any big power rex get annoyingly lound and they tend to drone at cruising speeds which can get annoying. I wouldnt have a rex as a daily driver.

I have had big singles but my last one was probably the equivelent of a supra on BPUs. It was still on twins. I could get high 12's on the 1/4 at about 110 mph on road tyres. It was dynoed at 300 rwhp at 0.9 bar. stock injectors, just exhaust, v mount i/c fuel pump and apexi P FC.

The pull of a big single rx7 is sooo addictive and 450 bhp is quite easy to achieve but the twins are soo civilised and no lag at all, you could put a car on twins up against a single turbo rx with 100 more bhp and the twins would keep up on a medium ish track.

I have only been in 1 single turbo supra and i much prefer my stock supra on twins as a road/track/drift car, i think singles work well on the 1/4 if thats your thing,

RX7 handling is out of this world if set up right and feels like a race car, brakes are fantastic as the car is a lot lighter but again if set up right.

I do miss the 8500 redline though

A supra is much nicer to drive on the road as its quieter inside with equivalent mods. a much better all round car even though its the first time in 15 yars i havee been without an rx7 and i have only had my sup for 9 days.

I have only been in 1 single turbo supra and i much prefer my stock supra on twins as a road/track/drift car, i think singles work well on the 1/4 if thats your thing,

So after being in 1 singled supra you say singles are for drag racing only, hows that?

http://uk.youtube.com/watch?v=OFjpJpTcErU

http://uk.youtube.com/watch?v=5YvCdILDhIg

http://uk.youtube.com/watch?v=FMtOShxD8Yo

http://uk.youtube.com/watch?v=3kMZ8mOgGk4

http://uk.youtube.com/watch?v=vQ09tEReSXc

http://uk.youtube.com/watch?v=MFb-N66C1BQ

http://uk.youtube.com/watch?v=-OcX8loDwR0

http://uk.youtube.com/watch?v=HyZiFS5jXbg

look and sound fantastic. i need to win the lotto to get all my dream cars

i have had RX7s for the last 15 years and still have a kit car with a 13b turbo in it. The RX7 is much more composed and agile than a supra. The noise may sound nice for a short while but any big power rex get annoyingly lound and they tend to drone at cruising speeds which can get annoying. I wouldnt have a rex as a daily driver.

 

I have had big singles but my last one was probably the equivelent of a supra on BPUs. It was still on twins. I could get high 12's on the 1/4 at about 110 mph on road tyres. It was dynoed at 300 rwhp at 0.9 bar. stock injectors, just exhaust, v mount i/c fuel pump and apexi P FC.

 

 

The pull of a big single rx7 is sooo addictive and 450 bhp is quite easy to achieve but the twins are soo civilised and no lag at all, you could put a car on twins up against a single turbo rx with 100 more bhp and the twins would keep up on a medium ish track.

 

I have only been in 1 single turbo supra and i much prefer my stock supra on twins as a road/track/drift car, i think singles work well on the 1/4 if thats your thing,

 

RX7 handling is out of this world if set up right and feels like a race car, brakes are fantastic as the car is a lot lighter but again if set up right.

 

I do miss the 8500 redline though

 

A supra is much nicer to drive on the road as its quieter inside with equivalent mods. a much better all round car even though its the first time in 15 yars i havee been without an rx7 and i have only had my sup for 9 days.

Jeesus Ant you get everywhere!

Just to add I ran 500+ FD3 as an everyday car but had a reasonably quiet exhaust system which cost me 20hp from a loud one and IMO was a good trade off.

They are very 'specialist' cars but realy are an amazing drive when set up right. Much lighter than a Supra and positively dances on it's toes when driven hard.

P.S. Sorry this is my first post, been lurking for 3 months!

So after being in 1 singled supra you say singles are for drag racing only, hows that?

 

http://uk.youtube.com/watch?v=OFjpJpTcErU

 

http://uk.youtube.com/watch?v=5YvCdILDhIg

 

http://uk.youtube.com/watch?v=FMtOShxD8Yo

 

http://uk.youtube.com/watch?v=3kMZ8mOgGk4

 

http://uk.youtube.com/watch?v=vQ09tEReSXc

 

http://uk.youtube.com/watch?v=MFb-N66C1BQ

 

http://uk.youtube.com/watch?v=-OcX8loDwR0

 

http://uk.youtube.com/watch?v=HyZiFS5jXbg

The words 'I think' he uses in his statement should give the game away that it is his opinion. I am willing to be proven wrong but I cant see where he said 'it is'.

I like them and would probably buy one in the future to see what there all about.

Although, just recently they have started to look a bit dated, it's not the car as a whole but the rear window from some angles that makes it look a bit old

The words 'I think' he uses in his statement should give the game away that it is his opinion. I am willing to be proven wrong but I cant see where he said 'it is'.

I am aware that it’s his opinion I wasn’t disputing that.

I posted about this only a week or so ago. I too just came from a rx7.

http://www.mkivsupra.net/vbb/showthread.php?t=136229&highlight=from+rx7

This might annoy people but I think a rx7 is and has more of a race car like feel (owning one will soon reveal the massive impracticalities) which looks v.pretty whereas a supra is more of a good looking grand tourer (at least in their stock forms). Obviously supras can be modified to be race cars etc.

As said before, the loudness of the exhaust WILL get annoying, as with petrol consumption, as with need of regular oil changes, attention blah blah.

That said I might buy another..

I posted about this only a week or so ago. I too just came from a rx7.

 

http://www.mkivsupra.net/vbb/showthread.php?t=136229&highlight=from+rx7

 

This might annoy people but I think a rx7 is and has more of a race car like feel (owning one will soon reveal the massive impracticalities) which looks v.pretty whereas a supra is more of a good looking grand tourer (at least in their stock forms). Obviously supras can be modified to be race cars etc.

 

As said before, the loudness of the exhaust WILL get annoying, as with petrol consumption, as with need of regular oil changes, attention blah blah.

 

That said I might buy another..

Oh ye! - forgot about the MPG. Put an LS1 in it or, the latest conversion kit, 2JZ GTE! (yes I know they are heavier engine).

Petrol consumption was truly shocking. It was GREAT booting it don't get me wrong. But if you are booting itconstantly £5 petrol would last 15 minutes.

That said nothing beats the blue flames coming out of the exhaust on cold nights. The reactions of normal drivers is a sight to be seen

rx7 = no flame kit necessary

So after being in 1 singled supra you say singles are for drag racing only, hows that?

 

http://uk.youtube.com/watch?v=OFjpJpTcErU

 

http://uk.youtube.com/watch?v=5YvCdILDhIg

 

http://uk.youtube.com/watch?v=FMtOShxD8Yo

 

http://uk.youtube.com/watch?v=3kMZ8mOgGk4

 

http://uk.youtube.com/watch?v=vQ09tEReSXc

 

http://uk.youtube.com/watch?v=MFb-N66C1BQ

 

http://uk.youtube.com/watch?v=-OcX8loDwR0

 

http://uk.youtube.com/watch?v=HyZiFS5jXbg

Yeah 60/61 mm turbos are very rapid & useable.

So after being in 1 singled supra you say singles are for drag racing only, hows that?

 

 

]

hi, i'm not going to get into a bun fight, i dont have any loyalties to any cars, they all have good trates and bad trates. Please read my post, i specifically said i 'think'

I have done more track days than i can remember and my last track RX7 had just under 500 bhp and was fantastic but no where near as practible as the supra or controllable as the twin turbo rx7 but i used to love shredding rear tyres and going sideways. I think a single supra would be the same.

I have just bought a stock supra and love it as an all round road car, but i didnt buy it to go on track, i have a kit car with soon to be 650 bhp per tonne, i bought the supra as a road car which it does very well, it also drifts very well as i found out on wednesday at the pod.

As for you tube vids, i dont get it, you can find you tube vids with VW beetles going round a track, doesnt mean they are good. Also, anything can be good if you throw enough money at it. What i'm getting at is you can stick a big single on it and get 50% more power but it wont make 50% quicker.

As i said, i have owned lots of Dynoed 400 - 500 bhp cars of different kinds most of which built by myself and driven by myself, i have an idea of what i THINK and what i like, they are my opinions only. I dont expect you to agree.

out of interest, have you been on a track in a 500 bhp rx7? i think you may be impressed, driving it to the nurburgring is a different story though. I'm sure the wifes ears wont bleed quite as much when i take in the supra next month unlike they did in the rx7.

BTW, hi paul, hows things?, you thinking of getting the right car to go with that engine you got in your saloon.

taken last wednesday, only had the car a week so still gtting used to it.

I like them and would probably buy one in the future to see what there all about.

 

Although, just recently they have started to look a bit dated, it's not the car as a whole but the rear window from some angles that makes it look a bit old

again its opinons but my last one looked loverly

I speak as an owner of both RX7's and Supras, several of which I have owned, played with, modified, driven/raced/ragged several of each type so can offer words of experience.

I can also speak from an engineering point of view as well and can honestly say the Rotary engine is shite.

I am not talking BHP figures and pub rubbish of what my cars or Harrys cars had and did not have as that proves nothing and is usually a mask for lack of proper knowledge.

Fact(and not from me), the reason there arn't many Rotarys on the roads is not because people don't like them, as they are beautiful looking cars, but the fact is they are extremely unrealiable and problematic.

Also why no other car designer/producer will use the Rotary engine concept, it's just not an efficient model.

Another thing I found as well besides the engine was the whole car was built rather cheaply. The interiors come apart and break easily as do the rest of all the trim in and out the car.

If you are looking for an RX7, it's very very hard to find a decent example, because of all the associated problems that they come with. Most are pretty tatty and rough, and this is not just down to the owners care and practice, but the cars design itself.

You would even think because of it's rarity that they would command a premium price, but opposite as they trade for a few bags of salted crisps!

But don't get me wrong saying all this, I did love my time with the RX7's and it was an experience. But personally there is no comparision between the the 2 cars... The build quality on the Supra is second to none and I'm talking in all aspects from Engine, mechanical to even body and trim. No comparision what so ever, different league!

Also if you wanna talk performance, they are both be on a level par with regard as stock for stock there is nothing between them.

Modify them together and again, they will both be moving along the same tracks as any other car.

'BUT', the big difference here is the Supra can take the mods and stand up, the Rotary, good luck!

Heres my old one:)...imho..they handle fantastic and just seem to stick to the road like glue,mine was a single turbo around 400 bhp and was really quick,its a little cramped in the drivers seat i would say i just fit in and im 6,1...mine was very noisy,and i hated it as an every day car,there was times when i just couldnt be bothered to drive it lol...bearing in mind i had the BPU supra before it for 3 years and i loved to drive that:)they are a weekend car in my eyes and i would never get another one,due to them being very very fragile...rebuilds are costly and its not unheard of for owners to have 2 and 3 rebuilds under there belt..they can just go at anytime..i found that i was constantly watching the clocks/gauges etc waiting for something to go wrong lol:rolleyes:all in all though they are an amazing drivers car if you had one for weekends,you will be smiling everytime you jumped into it..ohh yea they thirsty too:d

I speak as an owner of both RX7's and Supras, several of which I have owned, played with, modified, driven/raced/ragged several of each type so can offer words of experience.

I can also speak from an engineering point of view as well and can honestly say the Rotary engine is shite.

 

I am not talking BHP figures and pub rubbish of what my cars or Harrys cars had and did not have as that proves nothing and is usually a mask for lack of proper knowledge.

 

Fact(and not from me), the reason there arn't many Rotarys on the roads is not because people don't like them, as they are beautiful looking cars, but the fact is they are extremely unrealiable and problematic.

Also why no other car designer/producer will use the Rotary engine concept, it's just not an efficient model.

 

Another thing I found as well besides the engine was the whole car was built rather cheaply. The interiors come apart and break easily as do the rest of all the trim in and out the car.

 

If you are looking for an RX7, it's very very hard to find a decent example, because of all the associated problems that they come with. Most are pretty tatty and rough, and this is not just down to the owners care and practice, but the cars design itself.

You would even think because of it's rarity that they would command a premium price, but opposite as they trade for a few bags of salted crisps!

 

But don't get me wrong saying all this, I did love my time with the RX7's and it was an experience. But personally there is no comparision between the the 2 cars... The build quality on the Supra is second to none and I'm talking in all aspects from Engine, mechanical to even body and trim. No comparision what so ever, different league!

 

Also if you wanna talk performance, they are both be on a level par with regard as stock for stock there is nothing between them.

Modify them together and again, they will both be moving along the same tracks as any other car.

'BUT', the big difference here is the Supra can take the mods and stand up, the Rotary, good luck!

 

I hear what you say about the engine being fragile and inefficiant model, but so was the piston engine in its early days, I always wonder that if the rotary enigne had had the same amount of R&D as the piston engine, would it be better than the piston engine, I rather think it might be, it just makes far more sense, much less moving parts, and doesn't have something moving as fast as it possibly can in one dirrection, stopping, then moving as fast as in can in the other dirrection.

with regards to build quality, well there aren't many cars that have better or even as good build quality as a toyota, and you have to remember that the RX7 was always built to be lightweight.

there are some very good points made above, and lots that i agree with,

build quality on newer ones is unfortunately poor, especially interiors. A 1st gen 1984 car will have a better interior than a 1999 spec car with half the miles on it.

Engines, you have to bear in mind its a small engine and the first 13bs only had 140 bhp, people stick turbos on them and now expect 500 bhp, the engines are tiny and havent changed in design since the 70s hardly at all. The most significat channges werein the rx8 and they were only small ones.

Good point about r&d, would be interesting to see how good they would be if everybody had made them.

The reason I am sticking with the rotary in my kit is because i rebuild them and modify them myself. the advice i always give to people who want an rx7 but cant or dont do anything themselves is forget about it, buy a supra , as they are not necessarily fragile, the word i like to use is sensitive. The air, water and oil temps have to be spot on, the mapping has to be good and boost levels have to be accurate, the fuel has to be good and so does the fuel system. They have a bad rep because people just wind up the boost and expect them to take it, or rag them when too cold or too hot, a supra will take it an rx7 wont.

If you run your rx7 at stock power they will last quite well, but its comparable to a cossie, run it 450bhp and it wont last very long, run it at 250 and it will last for ever, i think people expect too much from the little rotory. We have a built a 3 rotor FD and it runs 500 RWHP at only 0.85 bar with a gt45 hybrid turbo, that should (fingers crossed) last quite well. cant afford to drive as it does anbout 9mpg. The N/A supra has 230 odd hp, a 100 more than an N/A rotary already.

Rebuilds are cheap if you do them yourself, circa £400 for new bits from mazda and a complete block can cost as little £200. Take your own engine to a tuner and they want 3-4 k, if mine only lasted a yeat at 450 fwhp i would be happy. By the way, i dont talk pub figures, i talk dynno figures, i use the same dyno everytime. Just in case the pub talk comment was aimed at me.

A car with stock twins is a pig to diagnose problems and not easy to work on but once its converted to single, they really are easy to work on and as long as you can put up with the fuel, noise and heavy clutch it will last well if all the parameters are kept in check. I drove mine to the several times with no problems.

I know exactly what you mean about looking at the gauges all the time.

I dont think there is any comaprison as a road car, the supra does everything better except the looks. A stock rex against a stock supra, the rex wins hands down.

As for a track car, I would have a rex, the 2 years i had mine as a track car were great fun and i pulled the original engine and sold it as working engine at the end of 2 years. that was bouncing off the 8k rev limiter for an hour at a time on track. I drove it like i stole it as it was cheap for me to fix and wasnt a daily driver so i didnt care. £ for £, i could build an rx7 that would out perform a supra on track costing twice as much to build. Some one with knowledge on supras could say the same about supra's. Difference is you wouldnt mind driving the supra to work, where the rex would sit in the garage all week as mine did.

all of the above is my opinion only and from my perspective of being able to build and modify rotaries myself which makes them cheaper for me.

I wish the rx7 build quality was the same as a supra, out of interest, anyone know what the cost of the cars was new to compare them?

3 rotor!

there are some very good points made above, and lots that i agree with,

 

build quality on newer ones is unfortunately poor, especially interiors. A 1st gen 1984 car will have a better interior than a 1999 spec car with half the miles on it.

 

Engines, you have to bear in mind its a small engine and the first 13bs only had 140 bhp, people stick turbos on them and now expect 500 bhp, the engines are tiny and havent changed in design since the 70s hardly at all. The most significat channges werein the rx8 and they were only small ones.

 

Good point about r&d, would be interesting to see how good they would be if everybody had made them.

 

The reason I am sticking with the rotary in my kit is because i rebuild them and modify them myself. the advice i always give to people who want an rx7 but cant or dont do anything themselves is forget about it, buy a supra , as they are not necessarily fragile, the word i like to use is sensitive. The air, water and oil temps have to be spot on, the mapping has to be good and boost levels have to be accurate, the fuel has to be good and so does the fuel system. They have a bad rep because people just wind up the boost and expect them to take it, or rag them when too cold or too hot, a supra will take it an rx7 wont.

 

If you run your rx7 at stock power they will last quite well, but its comparable to a cossie, run it 450bhp and it wont last very long, run it at 250 and it will last for ever, i think people expect too much from the little rotory. We have a built a 3 rotor FD and it runs 500 RWHP at only 0.85 bar with a gt45 hybrid turbo, that should (fingers crossed) last quite well. cant afford to drive as it does anbout 9mpg. The N/A supra has 230 odd hp, a 100 more than an N/A rotary already.

 

Rebuilds are cheap if you do them yourself, circa £400 for new bits from mazda and a complete block can cost as little £200. Take your own engine to a tuner and they want 3-4 k, if mine only lasted a yeat at 450 fwhp i would be happy. By the way, i dont talk pub figures, i talk dynno figures, i use the same dyno everytime. Just in case the pub talk comment was aimed at me.

 

A car with stock twins is a pig to diagnose problems and not easy to work on but once its converted to single, they really are easy to work on and as long as you can put up with the fuel, noise and heavy clutch it will last well if all the parameters are kept in check. I drove mine to the several times with no problems.

 

I know exactly what you mean about looking at the gauges all the time.

 

I dont think there is any comaprison as a road car, the supra does everything better except the looks. A stock rex against a stock supra, the rex wins hands down.

 

As for a track car, I would have a rex, the 2 years i had mine as a track car were great fun and i pulled the original engine and sold it as working engine at the end of 2 years. that was bouncing off the 8k rev limiter for an hour at a time on track. I drove it like i stole it as it was cheap for me to fix and wasnt a daily driver so i didnt care. £ for £, i could build an rx7 that would out perform a supra on track costing twice as much to build. Some one with knowledge on supras could say the same about supra's. Difference is you wouldnt mind driving the supra to work, where the rex would sit in the garage all week as mine did.

 

all of the above is my opinion only and from my perspective of being able to build and modify rotaries myself which makes them cheaper for me.

 

I wish the rx7 build quality was the same as a supra, out of interest, anyone know what the cost of the cars was new to compare them?

 

 

3 rotor!

http://i73.photobucket.com/albums/i225/Antnicuk/tripletrbo1.jpg

from what i remember the supra was about 8-10k more expensive

I hear what you say about the engine being fragile and inefficiant model, but so was the piston engine in its early days, I always wonder that if the rotary enigne had had the same amount of R&D as the piston engine, would it be better than the piston engine, I rather think it might be,

Rubbish, the Rotary design has been around almost as long as a Piston design. There have been many many variations and concepts of the Rotary over the years by many different designers who had chances with them and it's the best it is now, which is still crap... why would anyone buy a car with an engine with an extremely limited life span(aka 60K miles) in this modern era!

It's not like it's even going to compensate for this fault by saving you money on fuel economy.... because thats it's second biggest problem... very poor efficiency!

Anyway, I like how Keef summed up his experience with his Rex and can echo what he means entirely.

Oh and Antnicuk, the Supra is a far more sexy, aggressive, classy, better looking car any day!

Hehe. Seems to be a car that provokes reaction!

The rotary CAN be unreliable I had 2 fd - both mint - one was unreliable (standard twins) one never missed abeat (large single500+ proved on two dynos) but I only did 15k in it and that seems to be the hit and miss of it.

They are great track car. There is one lad having an ls1 put in his RX7 (500 rotary just taken out) who drives a Porsche 911 GT2 as a daily! He has bought a triple rotor RX just for fun whilst the conversion is being done. In his words - 'the RX7 is in a different league to the GT2 when it's fun/track time' - a strong endorsment I would have thought.

If any one is near Birmingham I can recommend a visit to a guy called Craig who is gaining a great reputation for the LS1 conversion. Also watch for the 1/2JZ conversion gaining popularity now there is a kit for it.

1JZ in Fd3 - same kit for 2JZ just being honed before release.

LS1 in Fd3. Craigs is 7l 600torque 550 fron 2500RPM :)

The silver car on the ground is now housing the 7l fron Craigs and belongs to the GT2 driver.