NashuaCLS

I just fired up my trusty Drag Racing Analyzer.

I used the The RX-8 One dyno posted here (170 WHP SAE).

Now here is the dyno numbers (SAE):

Rpms lbft WHP

2250 87.5 37.5
3000 105 60
4000 114 87
5000 121 115
6000 127 145
7000 124 165
8000 112 170
9000 90.5 155




Weight with Driver: 3200 lbs.
Tire wheel weight : 47 lbs (estimated)
Weather: 50F, 30.45" AP, 20F Dew Point.

The first run with 4500 rpm lanuch (slip nimimun tire spin), shifts at 9000:

Sat Aug 30 03 5:39 pm
Time Slip For: 2004 Mazda RX-8 6-speed

0-60 MPH: 6.76s

RT .500
60 ft 2.527
330 ft 6.588
1/8 ET 9.955
1/8 MPH 73.89
1000 ft 12.851
1/4 ET 15.291
1/4 MPH 91.66

The second run with 6500 rpm lanuch (slip, niminum tire spin), shifts at 9000:

0-60 MPH: 6.481s

Sat Aug 30 03 5:52 pm
Time Slip For: 2004 Mazda RX-8 6-speed

RT .500
60 ft 2.314
330 ft 6.343
1/8 ET 9.703
1/8 MPH 74.01
1000 ft 12.595
1/4 ET 15.034
1/4 MPH 91.67

Note, the third gear will top exactly at 91 MPH, end of 1/4 mile run!


My guess, there is no way this RX-8 will do 0-60 in 5.9 or 14.5 in the 1/4 mile!

Blue 350z

Nice runs... 15.0@91 is still pretty damn good, But I would think the Mph would be a bit higher..

Hey, I notice you race up new england dragway, thats where my time slips are from in my sig, NED is like 45 mins from my house.. You go up there often? I am planning on going up in a few weeks for a Weds Street night, Probably on Sept 17th.. My buddy just picked up a new Grand Prix Comp Edition, its rated at 15.0@94Mph, he's gonna run it for the first time and i'll probably race too depending on the weather, I already raced on 4 diffent occasions since picking up the car in Dec

I'm dying to race again since its broken in now, I race 1 time since I got some decent miles on it and I managed a 14.1@100.51 in 95 degree weather (115 track temp) with a crappy 60' 2.3 where back when my engine had like 1400 miles on it and 50 degree weather I ran a 13.9@101 with a 2.0 60'. I am looking for a cool night and I am looking for 13.8 or better now that my car is broken in.

NashuaCLS

Yeah, I do. I live in Nashua, NH. It is also 45 min away to NED.

I am at NED whenever I can like 4-5 times/year. I missed today Import Wars. However, I will be there next Import Wars at the last Saturday of September. I prefer Saturdays since you can get as many as 6 or more runs. You will run competition brakets too.

If you are interested and your buddy' GP GTP Comp edition (Yeah I love to race this car! I checked it at a local Pontiac Dealer) wants to be there let me know. I will see if I can be there.

BTW, your 350Z is blasting quick at 13.9 at 100 MPH. Mine is 5-Auto. My goal for next year is just to hit consistent 13.9-14.0@100MPH.


Nashua.

Blue 350z

LOL, ya I was planning on going to import wars today too but a few buddies bailed on me the last minute and I did not want to head up by myself or with my chick (don't want to leave her in the stands by herself all day and hear her nagging she wants to leave). If I don't end up going up on Weds the 17th I'll probably go up for import wars at the end of Sept also or maybe i'll go to both, the only thing is I want to get some runs in with some cooler weather, I went to import wars mid summer and it was like a 115 track temp and 95 ambient temp. Killed times and the track conditions were poor, couldn't get below a 2.26 60' when I usually average 2.15 or so..

So you have an MSN or AIM name?

hoffa

i did a simulated 1/4 run in a city block imy neighborhood and its like 150feet shorter than a 1/4 and it was a 3000rpm start and i hit 95 mphs so i feel that is pretty dam good in my books :D
o and yes the street was level it was not downhill

Gord96BRG

So, we've got actual time slips posted with 14.5 and 14.6 ETs and trap speeds of 95 and 96 MPH posted by several production spec cars tested by Mazda, but you choose to ignore those and run a computer program that tells you the actual times achieved are impossible? And you prefer to believe the computer program?

Dream on. Next you'll be telling us that your FWD sled out-handles the RX-8 too. Just why are you here, anyway?

Regards,
Gordon

NashuaCLS

Do not believe me, nor Mazda. Just take your RX-8 to the 1/4 mile track and find out for yourself.

I was shocked too when my CLS stock was doing 15.2-15.4 and Car Mags were saying 14.8s. Now my CLS modded is at 14.6s consitently. My CLS does not handle like S2000 or the RX-8. no shame in that, it is 3500 lb FWD HW cruiser. It is great at what it does.

I am here because I was interested in the 250 HP RX-8... scrtach that I was looking for an RX-8 with 300 HP. It is seems I will wait a long time!

Nashua.

KiyoKix

Why is it that there are sooo many people that refuse the believe that factory is telling the truth (as well as the magazines) on the times for the RX-8. I've tried to stay out of all of this BS talk, but sometimes it's just too much. Sure YOU can't pull of a 14.5 or 5.9, but that doesn't mean it's not possible...it just shows that YOU can't do it. Are you the most skilled driver in the world...I think not (nor am I...but I don't doubt it...that they could or I could). Most people call it practice, and if you read the articles you would see that the magazine stated very clearly that they achieved those times by DROPPING THE CLUTCH FROM 7000RPM. Don't believe me...go watch Car and Driver, or better yet go pick up the magazine and learn something.

On another note most people fail to realize that when the performance numbers are achieved for a vehicle it's not something that they plan on repeating all day long everyday. It's with disregard to longevity or practicality...it's to show what the peak of the vehicle is. If you were to pilot Ari Yallons' car down the quarter mile one time and pull off only an 11.8 does that mean his car can't do a 10 second run, NO...it just proves that he obviously has more experience and KNOWS THE VEHICLE/ENGINE and how to make it work. Learn something before you condemn someone else...especially when they made the object you're talking about. It's their job to know more than you...be happy you have something to look forward to.

SaskRX-8

Dream what you want, but the car that dyno'd at 175whp won't do the 1/4 mile in 14.5... Some may. That one won't, and neither will mine.

dvcn

Contrary to popular belief, it takes some driver skill to do 0-60mph and 1/4 mile runs. I've seen people make 16 second runs with a car capable of 14 second 1/4's.

The most important part of the 1/4 mile is the launch. The 60' time is the indicator. The next important item is shift speed, especially when you have to do three gear changes over the quarter.

KiyoKix

dvcn, I fully agree...the most important part of any vehicle is the one who controls it.

nk_Rx8

I try to see Mazda's side on this whole issue, but I see the doubtful owners side too. I just don't know what to make of it all yet.

But for the doubtful owners, their perspective is that first of all, the magazines didn't use production models. And second, noone believes Mazda because they have violated everyone's trust already with the 247hp rating, and then the current dynos still don't support a true 238hp rating unless maybe they are using the high end of the 5% margin of error (which would be kinda scammy again). So there is a big mistrust issue involved here. So why would you all of a sudden choose to believe a company, that has already violated your trust, on something that they need the public to believe in order to make sales. Picture the sleazy used car saleman saying "Trust me.....".

They slips could be real, who knows? Are they really slips done with production engines and ECU just because they said so? Noone really knows, except for someone at Mazda. I don't think it will be settled until more current owners start getting their own independent time slips after getting more time/practice with the car.

Gord96BRG

The info is posted at RotaryNews.com, and Bern from RotaryNews was there for the testing. We do have independent validation of the time slips.

Regards,
Gordon

NashuaCLS

Not flame it anymore. But,...

mags test Cars, Pre-production cars retro-fit with production goodies.

Why Mazda did not dyno each car and showed us what each car is making on the ground.. I bet you will find each is making 195+WHP!!

95 MPH traps is totally different from 89-91 MPH!! There is some 20 WHP difference.

Nashua.

NashuaCLS

Just to guess what does it take (WHP) to have a 14.5s timeslip and 95-96 MPH Traps.

My trusty Drag Analyzer Simulated run (6500 rpms launch, Hi Rpms clutch slip, minimun tire spin):

Sun Aug 31 03 12:42 pm
Time Slip For: 2004 Mazda RX-8 6-speed Modded 198 WHP

RT .500
60 ft 2.209
330 ft 6.090
1/8 ET 9.324
1/8 MPH 77.38
1000 ft 12.086
1/4 ET 14.440
1/4 MPH 95.07

0-60 MPH: 5.835s

Shift into 4th at 92.09 MPH and at 1084 ft mark

Now here is the dyno numbers (SAE):

Rpms lbft WHP

2250 97.5 41.8
3000 115 65.7
4000 124 94.4
5000 131 125
6000 137 157
7000 137 183
8000 130 198
9000 110 188


Nashua.

B-Nez

I used to play this little game on my parents' 286 IBM PS/2 when I was a kid, called Race2000 or something. I downloaded it from a BBS that ended up being in Georgia, and cost a few bucks on our phone bill. My mom got pissed. Anyway, this simulation was cool, because you picked two cars, then watched a green line draw across the black screen as the 2 cars raced a 1/4 mile against each other. I used to race the Eagle Talon and the Dodge Stealth. I can't remember which one would win, but the same car would win every time, by the same margin, and with all the same times. Boy that was fun. Simulations are great, ain't they?