Cody Red

So how about that race?

Or something

-Cody

RotaryP7

Yeh, where's the race? I'm waiting for the results..

Silver_Surfer

Same engine? So what he still cant use that "Peak HP". End result the 06 still has 212hp. The 06 has the edge BUT its so close, its gonna be a drivers race.

In our perfect world the end result can be different than whats on paper.

Eddie13

I check this thread every 5 minutes waiting for the results of this "race" to come in! The anticipation is killing me - not too mention ruining my daily activities.

Sarcasm aside, my money's on the '06 by a car length.

Zero_Rotary

race race race?! so whats the outcome?? hehe

sosonic

I agree about the moodiness of the AT (though this may be the case with the manual). Sometimes its seems your acceleration is faster and sometimes it seems like it stalls a bit.

1. I think this is related to the oil catch can topics. Basically, there is a return line that brings oily vapor and gunk to the intake. They did this for emission reasons, but they should have engineered a better solution. The 06 RX-8s do a little better by having the oily vapors go to the lower intake manifold, there are possible performance issues with this too, but at least you will not have gunk in your intake. So what all this means is the RX-8 is often breathing "dirty air" and this can effect accelaration.

I'm going to use an inline filter (which I think is better than the standard catch can) to resolve this issue.

2. I'm wondering if this is also an ECU issue. It appears that if you are constantly driving aggressively, than the RX-8 is more responsive and has better accelaration. If you drive conservative, than it seems that it takes 1 or a couple aggressive accelerations, to start getting a better response.

3. This could also be a carbon build up issue. This is why people are saying you should rev your engine above 6K rpm, at least every other day. The RX-8 rotary likes high revs. I think people that are used to piston engine, act like high revs will hurt the car, so they may be allowing excessive carbon build up. Something that can also be done is to add a fuel system cleaner, every once in a while, to help get rid of any carbon and deposit build up.

6AT vs 4AT

I don't think there will be much of a difference in the 0-60 or top speed. I do think you should see the stock 6AT outrun a stock 4AT in the 1/4 mile or longer distance. The 6AT can get more air at higher revs (do a search, if you don't know why).

Also, if you start throwing mods in there than its pointless to compare. Obviously a 4AT with mods can do all sorts of things.

typej

Please don't go down there.... Please... I made a mistake of taking mine down (04 auto). I never seen any RX-8 on the track and maybe there is a reason (it's SLOW!)

p.s. I think i ran like 18 sec quarter mile... but that was when my cat was bad and I had my cat replaced. But still I doubt you will break 16 second mark ...

zenaissance

The idea of going on the track is not just about how fast you can accelerate and go but rather about knowing the limitations of the car and the possibilities of its performance. The 8 has never been about speed- nor about 1/4 mile times. The things you can do on track, you cannot do on regular roads. Once spring hits up with nice warm weather, I will take my 04AT for a spin on the track.

The only person you are competing against is yourself- comparing times between a 04 and a 06 is simply a pissing contest. Like I stated earlier, a half a car length is about right- not even surpassing 1 car length (the 7500 rpm limit doesn't give the 06 any undue advantage.

Now on to the merits of racing on track. Going on the track allows you to have a little fun- learn about the handling of the car (things like understeer and oversteer etc) and makes you a more responsive driver on public roads. So what if you can't crack 16- honestly, it's still a lot of fun even in an AT. There is nothing to be afraid or ashamed about bringing the AT to the track.

DaveCM203

Why in the hell do people on here keep talking about double clutching and drag racing? What does double clutching have to do with drag racing? Don't you typicaly upshift as you drag race.

bxb40

These are automatics... what clutch?!? Help the guy win, please ;o)

On the 4AT topic:
1. Change your ATF to RedLine High Temp Full synthetic for some gains in shifting points/feel.
2. Run oil premix in gasoline - takes care of extra wear.
3. Run 89 octane (unless car is fine at top end in 2nd gear with 87). Any higher than needed, and you waste power.
4. Get a high flow air filter (K&N) to make-up for the breathing difference.
5. Power launch it (stall speed is about 3200 RPM) - bad on regular basis, OK for few times, if you are on the RedLine stuff (be on it if you care about your car anyway, the OEM ATF is weak).
6. Make sure you are in manual mode and shift right at the beep - engine stalls right after it, so you lose time there. Use the peddles, don't take your hands off the wheel.
Push the gas pedal fast but progressively, don't slam on it. Drive-by-wire is weird like this...

Get all the extra weight out of the car (mats, trunk stuff, etc.). Can even pull out the rear seats? :o)
Good luck !

jordanjerome

Hey all, as we all know the AT does not come with the carbon fiber drive shaft like the MT. I just bought and installed an aftermarket one from PST. Its lighter then the stock one the MT has, I also have the RP supercat, RB exhaust, Underdrive pulley, MS CAI, and your gonna laugh but my mom bought be the E-Charger for my return from a deployment. I beat a 06 with a MT by half a car lenth in the 1/4 mile and was still pulling away had we not had to stop. I have an 05 with the AT. So there are ways to keep up with and beat the MT. However keep in mind if they get the same upgrades that they can beat us
And as for who is faster between the 4speed and 6speed AT, neither. Before I got all the mods I was going to trade mine in for the 6speed AT and I raced my friend who had one and we were almost dead even every time.

mdw1000

Can you post more info on the new drive shaft, the RP supercat, and the E-Charger? Do any of these cause CELS or emissions problems?

Thanks! And welcome back home!

typej

So... who won? I will go down there too in Orlando if you guys haven't gone yet. You can race me (04 auto)

Silver_Surfer

The better driver!

jordanjerome

I was talking to Mazda and its even on the Mazda website. The 6spd AT and the 4spd AT both only have the 4 port motors. A lot of people on here are claiming that they have 6 ports so I just wanted to clarify that!

sldrmr21

thats interesting, when i got my '06 six speed, both my manual and my source told me that i had a 6 port engine. perhaps the 4 port 6 speed is for earlier models maybe?

jordanjerome

No if you go to the mazda site like your going to buy a car, look at it when you click for the tranny you want. When you click 6spd auto it says 4 port. And thats what the service guy told me when I went there to get mine worked on he said all 6spd AT's have the 4 port as well. I also read in here that the 4speed only had 197hp where the 6spd had 212hp, that is also false. Both have 212hp

jordanjerome

thanks here is the info and no emmission probs or CEL keep in mind the e charger is not like all great, it just gives the car a little more air is all. Look up Axial flow, they are able to build a great new turbo for the 8.

http://www.pstds.com/
http://rx7.com/store/rx8/rx8exhaust.html#supercat
http://www.electricsupercharger.com/products-eram.html

sldrmr21

the engine is the same for newer models as far as the difference between MT and AT. the only difference now between the cars is HP, torque, and a redline.

R888

I am not sure about the 4 port and 6 port thing, the only thing I can almost firm that the 04 has 212 hp. Quoted from hyper vol.96. If you checked your Vin #, in which is started with J. Every Vin # started with J is directly imported from Japan. IN generally speaking, people complainted mazda who made a false represtentation of the HP. Therefore, at that time I believe they used the worst dyno result as to keep ppl's mouth shut.

But you did a pretty good job that you can complete with a MT. Thats a good start. Your thoughts?

mdw1000

Thanks, jordanjerome! Any thoughts on which mods gave you the best bang for the buck? Which ones gave you the most power? Which ones do you think are least helpful?

I'm waiting on a 4.77 rear gear - i'll let everybody know how that feels when i get it.

paulmasoner

iTrader: (1)

the 6AT is a 6port motor , end of bullshit and debate. They arent rated at the same HP, and if you wanna get picky, NEITHER of them will put those numbers down on a dyno.

the "e-charger" by any and all names has already been beat to death, as if it even needed to be. https://www.rx8club.com/showthread.p...3&page=1&pp=15

Axial Flow(AFE) does not build a turbo for the 8. The AFSC is a supercharger, and is not ready.. doesnt appear to be too awfully close even. It will be worth the wait though.

now, i am tired, so someone else please kick this guy in the nuts for me

jordanjerome

wow all that aggression. its internet there buddy, the ban me and all that means nothing.
Anyway I have the facts here before me if you would like to see them. Oh well anyway I was not praising the E-charger by any means, if you would have read I said it did not give me any major HP like a turbo or SC, I just said it helped the car breath better a little. It was a free gift so I figured why not put it on a see what happens. But look on the Mazda site it says the 6AT is a 4 port. I think I will believe the company who makes the car over anyone else. Anger managament buddy, seek it.

paulmasoner

iTrader: (1)

lol, not aggression as much as dissapointment as you obvisouly dont know what you are talking about. i havent looked on mazdausa to see if thats whats on the site, and i dont really care to. chances are that some younger and dorkier kid than I is responsible for that error. And if your service/dealer told you its 4port, i suggest never going back.(is the case with MOST mazda dealers) As far as "what the company" and/or its representatives have said... if you do some reading, you will find a huge number of reports of service centers/dealers telling people totally retarded stuff like this. ie.. "sure rev it up good when its cold" was one of the more well known cases.

If the 6AT wasn't a 6 port motor... why would very reputable shops be tearing down engines and planning/fabricating/tuning for a 6 port motor? do you think the have looked at the engine, and said "screw it, lets just pretend its 6 port"?? as far as your e-charger.. you butt-dyno needs to be recalibrated, ie a size 12 boot. the e-charger doesnt/physically cant move enough air to do anything but restrict airflow the higher you get into the rpm range.(read the thread i linked)

dillsrotary

4 speeds are a 4 port, 6 speeds are a 6 port.