View Full Version : RX8 replacement for Rx7


Phyre
09-13-2002, 02:09 PM
For all of us tuners I guess the question is.

1) Is the Rx8 and kind of a replace of the legendary FD3S

2) Is the new RENSIS even going to be tunable, i've seen both

3) Will there actuly be a MPS version of the RX8, and if so, well the stock new RX7 (if there is one) be better, and will there be a
MPS Rx7?

n22lasing
09-13-2002, 02:30 PM
Rumours suggest:

1)The RX8 is NOT a replacement, an RX7 may come out

2) I am sure the renesis is tunable, I've heard NA version of 280hp, and turbo version at 330hp

3)It's been suggested that the MPS version of the RX8 either a 280 NA or the 330hp turbo version will be the standard RX7 motor.

I wish we had more concrete info, not something vague.

Hercules
09-13-2002, 03:01 PM
Actually I've heard that the next gen RX-7 will be a 3 rotor Renesis design, but that's all the info that I've heard.

As per MPS for the RX-8... dunno, maybe. I think it depends mainly on how the car sells.

Rich
09-13-2002, 03:26 PM
From Interview With Shigeo Hirata "Designer of RX-8 Concept" (http://rotary.cep.net/exclusive/Detroit-Report/interview.html)

"Question: Is the RX-8 the RX-7 Successor?

Reply: Absolutely not, its a whole new idea in sportscars designed to appeal to those who want the performance of a two seater sports car combined with the convenience of a family oriented 4 seater. That is not RX-7's philosophy. "

The odds of the RX-7 being a 3 rotor seem pretty long to me, due to the additional weight. I have heard nothing remotely official, so that's just my opinion. IMHO, if they kept the engine the same but got the weight down a few hundred pounds (to 2500 lbs.?), it would be an absolute rocket. There are those that want a bigger engine because they like racing paper tigers, but that much power in a light weight car would be plenty. That's just what I want; I may be in the minority.

feelthesweetbea
09-13-2002, 09:45 PM
You are not alone in the weight area. I would take a 2500 lbs 250hp car over a 350 hp beast anyday, think mustang. im not sure about the specs but thats not the point. first thing i do when i get my rx-8 is to see what i can do about the weight. it is soo light already that im going to have to look hard. I do hope that mazda engineers will be able to get it down to < 2900. by the way this is my first post.

Grimace
09-13-2002, 09:54 PM
It would be an amazing feat of engineering to get the RX-8 any lighter than the estimated curb weight of 2970 lbs. Think of the extra bracing involved with the B-pillar gone.

To get the 8 down 4-5 hundred pounds would probably add 50% to the price, easily, for the exotic alloys and other materials to do so.

Phyre
09-14-2002, 11:30 AM
Okay so your telling me that mazda is going to have almost every vehicle with a MPS version, so my question is the RX7 will even have a MPS version... so whats the point of buying a regular 7. A unrestricted sports car, but then there is the MPS version which is all out unresitriced MPS version. I think mazda should only make certin cars MPS, The 6, Protege, have the Rx8 non MPS and then the Rx7 MPS only.

So I mean how long do I really want to wait before I get a car, I want a mazda I love mazda I own a 95 Mx6 and a 94 Rx7.

They game almost only 1 way, but now Mazda is going to put out 2 versions of each car...whats the point.

Rich
09-15-2002, 09:59 AM
Originally posted by Grimace
To get the 8 down 4-5 hundred pounds would probably add 50% to the price, easily, for the exotic alloys and other materials to do so.

I wasn't very clear before, I was talking about the RX-7 when I said I hoped they removed 4-5 hundred poinds. My point was that I don't see the point of Mazda spending lots of money on getting an extra bit out of the engine if by removing removing 2 seats, 2 doors, and shrinking the overall size they could significantly reduce weight of the 7 over that of the 8. The Miata is under 2400 lbs., uses an iron block engine, and very little aluminum or other expensive weight saving tricks.

Phyre, it all depends on what you want out of a sports car. IIRC, the FD RX-7 R1 version was really harsh to drive on the street, and most people don't want something that uncivilized for their daily driving. The touring edition had very nearly the same performance, but was much more comfortable. Some people will never approach 90% of the cars limits and would much rather have the extra comfort afforded by a softer suspension and the couple thousand dollars in their pockets over the all-out MPS version. Keep in mind, when I'm talking about "softer", I still think it will be considered bone jarring to the typical SUV or sedan driver.
Even though it's tough for us enthusiasts to understand, the fact is that a very small number of people are willing to accept the extra compromises that go along with a high performance version of a sports car. For most people, they would say just the opposite of what you said, why spend the extra money for a less comfortable car that only raises the performance a small amount? If the performance is raised significantly, then the extra cost will be significant, and the question is moot again. I think an MPS version is a good idea.

JMHO.

RX - 8
09-15-2002, 10:35 AM
rumors rumors rumors...nobody knows anything for sure..YET!

Phyre
09-15-2002, 12:12 PM
OKay but in the next 2-3 years your looking at buying
1) Daily Driver
2) Family Car
3) Sports car/tuner car

When your looking at buying that you got to ask yourself whats the best in every catagory

1) Volkswagen Jetta TDI (Gas mileage)
2) Chevy Suburban
3) Rotary :D

But really when your looking at buying any of those you want the most bang for your buck, and if mazda is going to release something and then later release a better version WHY THE HELL DID I JUST BUY THAT?

I'm Mazda to the heart, but Mazda can't afford to screw up on this Rx8 Mazda6 and if they produce it the 7

If Mazda screws up agian i'm probably not the only one but they will defently lose me, and a lot others.

rglbegl
04-28-2008, 11:51 AM
rise from the dead

CyberPitz
04-28-2008, 12:27 PM
Actually I've heard that the next gen RX-7 will be a 3 rotor Renesis design, but that's all the info that I've heard.

As per MPS for the RX-8... dunno, maybe. I think it depends mainly on how the car sells.

This, back in 2002 made me lawl, as the Furai has the 3 rotor Renie!

Mazurfer
04-28-2008, 12:35 PM
You working on a ban today or what?
Some of these old threads are good, but you are gonna screw up all the Newblets!

rglbegl
04-28-2008, 12:37 PM
happy birthday mazurfer :)

Mazurfer
04-28-2008, 12:38 PM
Ha Ha ha................thanks! Now that's a worthwhile post! :uhh:

fahrfegneugen
04-29-2008, 02:20 AM
This is so old it is disturbing...

zoom44
04-29-2008, 10:21 AM
This, back in 2002 made me lawl, as the Furai has the 3 rotor Renie!

no it does not.

zoom44
04-29-2008, 10:21 AM
begl where is the one you bumped that i started? what thread was it?

CyberPitz
04-29-2008, 10:29 AM
no it does not.

Except this states otherwise....

The major element we did not change is the 450-horsepower RENESIS-based R20B three-rotor rotary engine that provides Furai ample Zoom-Zoom.

Link - http://www.makesandmodels.com/Mazda-Furai.php

Unless you know something that nobody else does, and have pertinent information of what they plan on doing with it...:)

shaunv74
04-29-2008, 10:39 AM
I thought the 3 rotor in the Furai was from the Grand-Am LMP2 Courage chassis car. I didn't think that was a Renesis either. Didn't the Mazmart guys build that motor?

zoom44
04-29-2008, 11:11 AM
Except this states otherwise....



Link - http://www.makesandmodels.com/Mazda-Furai.php

Unless you know something that nobody else does, and have pertinent information of what they plan on doing with it...:)


its not something that nobody else knows. its not a hidden fact just something that allot of people have missed apparently. The engine in the Furai is - as Shaun pointed out.- the 3 rotor from the Courage car. It is a Peripheral port 3 rotor originally called a 13g (wikipedia entry http://en.wikipedia.org/wiki/Mazda_Wankel_engine see the 13g comment under the 20b heading)

The engine itself was tuned by Jim Mederer from Racing Beat with the assistance of a guy from Motec. They were running it on the engine dyno at Racing Beat on the sunday after 7stock last year and many people saw it (although they didnt understand what they were witnessing at the time). It clearly is not an all side port Renesis based motor. Calling it a Renesis 3 rotor is marketing.

The only all side port 3 rotor - Renesis 3 rotor- that we can prove on this forum is the one recently talked about in a thread in the Major HP section

CyberPitz
04-29-2008, 11:32 AM
Ahhh, so that's not going to be the engine inside of it when it's produced?! :( Well that just takes the wind out of my sails.

Oh well, I can still dream, I suppose...

zoom44
04-29-2008, 11:41 AM
IF its produced- and there are no plans what so ever to do so - it wouldn't be with that engine

CyberPitz
04-29-2008, 11:44 AM
IF its produced- and there are no plans what so ever to do so - it wouldn't be with that engine

So, they don't plan on producing that car at all, from what you're saying? Everything I've read *Then again, the media, can't trust em.* says that it's going to go into production.

Is there some news article/announcement from Mazda that I'm missing that is saying that they aren't going to do anything with this car?

I'm genuinely curious.

zoom44
04-29-2008, 11:53 AM
Mazda doesnt talk in public about "Future Plans", So you wont see them say "Most definetly not ever". (although they seem pretty quick to say there is no Mazdaspeed MX-5 in the works.....) However Furai was/is only a design study. The only talk about making it is from enthusiasts who - like me and you and nearly every other person who has seen it /heard it- want them to build it. They really arent taking it seriously.

The race car needed a redesign because of upcoming closed cockpit rules and Franz talked someone into letting him shape a body on the chasis with that and a "what could be" attitude in mind and giving them another Nagare car to show. Dont get me wrong. There are plenty of folk at Mazda that would love to see it as well Im sure. But mostly it will be used to pace some races and create buzz at shows..

Its possible of course that much of the styling cues will end up in some other rotary powered production car in a more "normal" Mazda price range.

zoom44
04-29-2008, 11:55 AM
at least some people get to drive it

http://www.motorsport.com/news/article.asp?ID=285478&FS=ALMS-LEMANS

CyberPitz
04-29-2008, 12:06 PM
at least some people get to drive it

http://www.motorsport.com/news/article.asp?ID=285478&FS=ALMS-LEMANS
Well, it would be a good move, I'd think, to produce a 3 rotor engine, though not NEEDED in that car. *HINT 8 HINT*.

But, I would like to see what they do with this idea for the car.

mysql
04-29-2008, 12:09 PM
have you seen the ride height of the Furai? No way that sucker is going to traverse our road systems without getting stuck on something. And if you jack it up high, it's going to look silly.

CyberPitz
04-29-2008, 12:11 PM
have you seen the ride height of the Furai? No way that sucker is going to traverse our road systems without getting stuck on something. And if you jack it up high, it's going to look silly.

Yeah, it's true, the thing would crash on Speed Bumps. I figured they would redesign the front a bit, give it a different suspension to raise it up a little bit....

I like to reach for the stars sometimes.

mysql
04-29-2008, 12:13 PM
heh. Did you see the seating position in the vehicle? A LOT would have to change for it to be feasible to bring to the market.

As a working concept, it kicks ass. It doesn't need to be practical or anything, but as a prototype for a road going vehicle, it isn't up to par...

alfy28
04-29-2008, 12:29 PM
Rumours suggest:

1)The RX8 is NOT a replacement, an RX7 may come out

2) I am sure the renesis is tunable, I've heard NA version of 280hp, and turbo version at 330hp

3)It's been suggested that the MPS version of the RX8 either a 280 NA or the 330hp turbo version will be the standard RX7 motor.
I wish we had more concrete info, not something vague.

:eyetwitch
aww the days of speculation. i sure do miss those days.

CyberPitz
04-29-2008, 12:34 PM
heh. Did you see the seating position in the vehicle? A LOT would have to change for it to be feasible to bring to the market.

As a working concept, it kicks ass. It doesn't need to be practical or anything, but as a prototype for a road going vehicle, it isn't up to par...

Right, it would be horrible if even part of that vehicle was put into a road car. It's a great concept for looks, I must say. If there was a car that even resembled that, I'd be happy. I just hope they take it and do something with it for the public market.

alfy28
04-29-2008, 01:27 PM
Personally Furai is a good car for a race series, as for production, it would be the dumbest idea mazda ever came up with. Furai type of car is to exotic for production company. now if mazda made a car that has a producation look, then that would be really good. but as for furai being a producation car, i just do not see it.

NNow if mazda was a company like zonda, ferrari, lambo etc, who only makes limited amount of cars, then yes i can see furai being a car for the roads.