top speed?

I noticed on the mazda web site that on the dash the rx 8 has a digital spedometer. i was just curious what its top speed is? or what its dash top speed would have said? thanx

arnt they limited at 210km/h ? (~125mph)

no its gotta be higher than that 125? camrys and accords do that.

no its gotta be higher than that 125? camrys and accords do that.

There's several debates going on about this over at rx8club.com, but most seem to agree that the manual is limited to 148 mph in 6th gear but some have seen speeds of 148-152 in 5th gear.

I'm not sure what it is for the auto's...

hell ive been in a automatic fd and it hit 165mph, so im thinking the 8 is the same.

hell ive been in a automatic fd and it hit 165mph, so im thinking the 8 is the same.


No, It will not hit much above 148. The highest I've read about was 158 and he said it was on a downgrade. All achieved in 5th gear, which is the high gear in this car. 6th might pull a few more miles out of it, but it's mostly an overdrive gear and don't expect more then single digit gains from it. The FD is a totally different car made with a totally different performance in mind. It has more hp and less weight. Most likely geared different also. I've never been in one but they are beautifull cars, even by todays standards...

for comparison a s4 n/a fc tops out at around 140 (in 4th).

The JDM RX-8 is limited, but there is no limiter on US models. Top gear on a dyno will get you well over 180mph.
The un-modified real world top speed is about 150mph, the car wants to go faster in 5th, and redlines the tach, but if you use sixth, there is just not enough grunt and you lose speed.
If you go by the digital speedo, top speed would be 999mph, right?
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mine will go 235km/h+
But I've got a euro spec. RX8 HP

I have a US spec 2004 RX8 that I drive in Europe. Last weekend I hit 130 MPH on the Autobahn and it wasn't even breathing hard, I'm sure I could have gotten well over 140/150.

I Thought it was limited at 149.

Here's a little something for you guys. Ofcourse there's no wind resistance but very nice to know that it can do-----> Click Here (http://www.d-mphotos.com/images/rx8/rx8dynoday/rx8184mph.wmv)

RX8 top speed is 150ish.
On a dyno, sure you can get to 180 but the car is not going that fast, you just are turning rollers at a low resistance with no account for actual friction of road surface, drag coefficient ect ect.

But really, who cares how fast they can go. There not top speed cars, its all about how fast you can corner.

i think a turbo rx8 would have better stability (with stock aero) than an rx7, by virtue of a more rigid structure and longer wheelbase. am i right?

When i teast drove the car befiore tuning and the addition of a few othere parts it did not feel stable at high speeds. It felt very twitchie.
The FD feels rock solid at high speed as the hole car acts like a wing creating down force. With some adjustments to thes suspention we should be able to sold the problems it was showing.

Your crazy dude. I've been up to 130mph in my 8 and it feels rock solid, like I have control over everything. I'm sure you didnt test drive that car at 130pmh.

Your crazy dude. I've been up to 130mph in my 8 and it feels rock solid, like I have control over everything. I'm sure you didnt test drive that car at 130pmh.

Godd job, now take the corner comming up at those speeds. The car is very uneven into a corner at high speeds. But like i said, it will all be fixed once the suspension is complete. Which shoudl be by monday or tuesday. Then the car will be ready to roll out.

Godd job, now take the corner comming up at those speeds. The car is very uneven into a corner at high speeds. But like i said, it will all be fixed once the suspension is complete. Which shoudl be by monday or tuesday. Then the car will be ready to roll out.

Its just funny that your saying that because ever single person that has raced one on a track(professional driver or not) has had nothing but great things to say about the handling and stability of the RX8 at high and low speeds.

I noticed on the mazda web site that on the dash the rx 8 has a digital spedometer. i was just curious what its top speed is? or what its dash top speed would have said? thanx


I have had my 04 6speed with borla exhaust and K&N intake up to 145mph at 5000ft elevation. That was in 6th gear, 5th gear would not reach that with the rpms. Im pretty sure that the car has an electronic govenor at 148mph. At sea lvl im sure you can hit it quite easily. As you can see from the below link, the car was only at 7400rpm at 145mph, so im sure a higher speed is possible when the governor is removed and at sea lvl.

http://www.binarycs.com/images/145mph.JPG

P.S. Sorry that its kinda blurry, but when at that speed, although it feels like its on a rail, still kinda scarry to take a pic.

Its just funny that your saying that because ever single person that has raced one on a track(professional driver or not) has had nothing but great things to say about the handling and stability of the RX8 at high and low speeds.


Its funny cause im an SCCA race instructor and i have raced rotaries my hole life. And i can say compared to a 3rd gen RX7 the RX8 is not very stable. With suspension modifications there amazing, on par with many full on race cars. But stock there not very nice for track use.

Its funny cause im an SCCA race instructor and i have raced rotaries my hole life. And i can say compared to a 3rd gen RX7 the RX8 is not very stable. With suspension modifications there amazing, on par with many full on race cars. But stock there not very nice for track use.

Once again I call BS. Not good for a track? Are you freakin crazy? Would you like to see a couple of videos of the STOCK RX8 staying up with some Carrera S's? Or maybe that's not good enough for you. You need to admit your just a hatter man. Everything you say is negative about the RX8 even though you try and not make it seem that way. You have something against the car and I have no clue why.

Heres one for you. Though the Carrera's are getting him on the straight the RX8 can easily stay with him. And the driver is from the UK, where they have the low HP 6 Speed Manuals. BRB with more......

http://www.presmoe.com/RXvsCarreraS.avi (Right Click and "Save Target As")

seems that was more of a display of driver skill than the ability of the car

seems that was more of a display of driver skill than the ability of the car

That statement doesn't mean $hit to me. You can say that for any car in any race. I know what the 8 can do on a track since I've driven it on one. People talk trash about the 8 all the time, but have no clue and those that talk trash, 98% of them actually don't own one! I've seen too many videos of RX8's staying up with SS's, S4's, Z06's, Mustang GT's and so on. I guess they are all because the driver in the RX8 was better right? Come on now. Give the car some respect when its due. It has proven itself over and over again. Just how we cant beat an 350Z right? But look what happens when its stock vs. stock.

These are National Solo I results for 2005.

BSTOCK
1. Jason Isley Mazda RX-8
2. Joe Goeke Mazda RX-8
3. Ron Bauer Porsche 968
4. Keith Casey Mazda RX-8
5. Eric D. Jones Mazda RX-8
6. Phillip Weber Mazda RX-8
7. Randall Noll Mazda RX-8
8. Mark Sipe Mazda RX-8
9. H. Sharp Mazda RX-8
10. Christopher Hammond Nissan 350Z
11.John Vitamvas Mazda RX-8
12. Carter Thompson Nissan 350Z
13. Stephen Hui/Nwst Porsche 968
14.Jeremy Caplan Mazda RX-8
15. Eric Hartwig BMW M3
16. Brady Dohrmann Nissan 350Z
17.Andy Hohl Nissan 350Z
18. Art Flores Mazda RX-8
19. Jim Thompson Nissan 350Z
20. Buckley.'NCar Mazda RX-8
21. David Hillman MR2
22. Mike Bronson Mazda RX-8
23. Davis Mazda RX-8
24. Ricaido Quinonez Nissan 350Z
25. Thad Bolline BMW M3
26. Mark Mazda RX-8
27. Kevin Gleaton Nissan 350Z
29. Heaton Mazda RX-8
29. Peter Hetman Jr. Nissan 350Z
30. Richard Kline Nissan 350Z
31. James Baker BMW Z3 Coupe

I guess the RX8 drivers are real good huh? :rolleyes:

why are you attacking me?

i never said the rx8 wasnt a capable machine, i just said the video posted could be considered a display of skill, rather than the car.

because what would have been the outcome had the rx8 driver been in the carrera? the carrera slowed way too much on corner entry, that signifies inconfidence in the driver's own abilities. thats how it seemed to me.

i cant say how slow or fast the rx8 is, ihavent driven one

why are you attacking me?

i never said the rx8 wasnt a capable machine, i just said the video posted could be considered a display of skill, rather than the car.

because what would have been the outcome had the rx8 driver been in the carrera? the carrera slowed way too much on corner entry, that signifies inconfidence in the driver's own abilities. thats how it seemed to me.

i cant say how slow or fast the rx8 is, ihavent driven one

Sorry if you took it that way. I wasn't trying to attack you man. I'm just tired of random people(who don't own an RX8/have never driven one) talk shit to me about my car. I KNOW what its capable of one since I drive on every day.

What I'm basically trying to say is sure there are faster cars in the straight line than a RX8. But the RX8 has proven itself over and over again on a track. So people need to think before they open their mouth(I'm not talking about you, but people in general who don't have the car). But when you prove a point most people who have something against the car says its driver ability. I guess we have a lot of good drivers in the RX8's. Or maybe its the way the car was built. This car is easy to drive fast and to put in and out of corners. I need to find real sweet video. Let me see if I can find it on my hard drive.............

Look dude, its my personal opinion and im dam well intitled to it. I have driven ALOT of RX8's, and TONS of othere rotary powered cars as well as amazing piston powered vehicles too.

IMO the RX8 is poor at high speed track use, if you have a problem with that then thats your problem all on your own. I have nothign against the car, to me its another thing to make money off of. I have customers who race RX8's, i have customers who just want simple little things done to the car.

PS im not some random guy, i have owned RX8's and driven RX8's. I never said they werent good cars, i simpley said there are better. Your intitled to your own opinion but dont tell me what mine is, k pumpkin :D


There great cars, but there are better and IMO the 3rd gen RX7 beats it in every aspect except luxuary.

http://www.scca.org/_Filelibrary/File/2005SoloNationals-FINALresults.pdf

That is the national SOLO results for 2005. Yes in B stock the RX8 dominates as it is a new production vehicle that meets the required rules of the class and is of a good price and readialy avaliable.

E Stock is dominated by MR2's, Super Stock Corveetts.

Domination over a single class is one thing, being competitive over more than one is somethign totaly different. I do agree the RX8 is a great car. I do give it respect where it is due, and domination over B Stock is a great acheivement, but my opinion stands.

http://www.scca.org/_Filelibrary/File/2005SoloNationals-FINALresults.pdf

That is the national SOLO results for 2005. Yes in B stock the RX8 dominates as it is a new production vehicle that meets the required rules of the class and is of a good price and readialy avaliable.

E Stock is dominated by MR2's, Super Stock Corveetts.

Domination over a single class is one thing, being competitive over more than one is somethign totaly different. I do agree the RX8 is a great car. I do give it respect where it is due, and domination over B Stock is a great acheivement, but my opinion stands.

I'm calling BS on you right now! You've owned several RX8's? Show me pics man. I think your straight up full of it. You think I'm going to let your crazy opinions change what I think of my car. I've heard plenty of applause from the experts that have driven cars you dream about. They have driven plenty of more cars than you. And I've driven my car on plenty of road courses/tracks all over the east coast and I know what my car is capable of. Please dude, your a whole bunch a trouble put into a can. Do you think these car reviews and track times are made up? Come on now! Stop drinking and typing, you may want to do a grammar and spell check the next time you type. Your just a straight up hatter and you just need to realize it. You think you can come up in here and talk all this stuff with you riced up RX7? Stay in the RX7 forums and keep faking on the 8!

BTW I'll be waiting for those pics because I'm trying to figure out why you would buy several RX8's...... :confused: :confused: :confused:

Hey retard, read my posts. THERE GOOD CARS. That is why i would buy them.
I really dont care weather or not you beleave me or not, or weather you care for my spelling or grammer. Its fine and dandy you beleave your car is king shit, and to you it is there is nothing wrong with that.
Like i have said over and over again, RX8's are good cars, but there is better.

Riced up, BWAHAHAHAHAHA. Im not the one with "rotary accents" there bud.

GP sports full kit, proven aerodynamic advadges over stock body and more airflow to my rad as well at the FMIC. M sports fenders so i can run wider wheels and tires for improved road holding. But you must be rite about it. I mean, it has a bodykit so its rice. LMAO.

Read the SCCA rules and regulations for B Stock and you will see why the RX8 dominates the feild. If you want to see pics of my work simpley look in the RX7 section under a few posts of mine.

http://www.350zonline.com/gallery/album589?page=1

There are a few pics in that album for you there. If you like ill make a sign just for you and take some pics with that sign in it.

Grow up buddy, im not dissing you or your car.

Maybe you need to read the rules and regulations again because I don't know what point your trying to make. Every car in the Stock class has to be "Stock" besides some of the thing the SCCA allow such as roll bars and stuff like that. But Every car and its class has that, so what's your point?

I don't want to see you 7's. Obviously if you "have" owned RX8's you would have taken pictures. Any sane human who is a car enthusiast would have done so. And sorry by car is not "riced" up. My car is completely stock from the factory beside the ACT clutch, flywheel and Pressure Plate. You must not know the meaning of riced up..........

I'm not sure what the top speed for an RX-8 is, but most manufacturers limit top speed for US bound cars to 154 mph or so in deference to tire longevity. Not, of course, that there's much of anywhere where you can drive over 150 for any period of time...

But I find it hard to believe that an RX-8 is unstable at speed. I haven't had one there. But I have driven a stock Volvo 850 Turbo stationwagon at 155 (or or less) at the company's test track in Udevalla, Sweden, and it was stable at that speed, even in the very high banked corners (for as many laps as I could stand, btw. Ran it out of gas, but flat out it doesn't take all that long :naughty:).

I've also driven a Saab 900 at Talladega at 150 mph laps, 155 top speed on the back straight (woulda gone faster but the FIA wouldn't let us draft). And believe me, Talladega's turn one is really bumpy. It really makes me respect the NASCAR guys who go door handle to door handle (if they had door handles) at 200 mph. But the Saab was easy to control and not anything but comfortable running that 150 mph.

Now, if you want to believe it, Volvo may have made cheaters for us to drive--I don't think they did--but the Saabs were FIA certified to be stock-off-the-assembly-line.

So if the Swedes can make these bone stock sedans stable at 150+, it just doesn't make sense that Mazda, with all its racing experience (from racing rotary Familias in Europe in 1969 or so, through winning Le Mans and with more SCCA and IMSA titles than you shake a stick at), one would think that they could make a sports car that could go a measily 150 mph without getting spooky. Of course, I haven't had a chance to try, so I'll have to defer to people who actually have.

I have had a RX8 to high speed.
The issue is the dampening in the rear. With some aftermarket shocks its solid as a rock, but i find it twitchie, but that does add to the tossability of the car in the twisties.

Hmmm, you would've thought that Mazda would have learned something from the first generation that located its live rear axle with a Watt linkage rather than the less expensive Panhard rod. The Watt linkage, as configured, had the unfortunate tendency to bind and when it did, the effect was the same as having an infinitely stiff rear ant-roll bar: the car would spin. I experience that close up and personal and won a race as a result of it, having seen #2 car take out #3, resulting in a full course yellow for the rest of the race. (Would rather have raced. Track--esp. race-- time is expensive).

Anyway, like I say, I'm surprised. But it's good that you have a place to check out top speed. I don't have ready access to the several miles (at least) of clear, relatively straight trafficless roads that it would take to get to get to top speed safely (or without the risk of a speeding ticket that my grandchildren will still be paying off). :eek: 6

The only car I've been to top speed on the public road was a Fiat 850 Spider: 54 hp, 0.9 liter, pushrod I-4; 95 mph at 7000 rpm. Not the fastest I've driven, of course, but the only time I've topped out not on a track. (And the confession doesn't matter; the statue of limitations has run out long ago).