here is the dyno sheet. if any of you want to verify because it came out HORRIBLE from bullish racing's printer. i guess they are too running 6 second quartermiles lol. you can call them if you doubt the sheet is real

 

its about time what did u do to stop the ecu for intervering and making it go in sfe mode after 6200rpm

 

we broke it in with a GIANT BURNOUT

nothing else

 

vosko,

does Ito have a wideband or access to one? wondering if the ECU is running the car rich; hence loss HP and poor mileage.

HedgeHog

 

bullish racing has a wideband but he didn't use it. no need since he wasn't tuning

 

that looks good to me

 

Just waiting for Ikewrx to jump in with something negative to say now Nice looking dyno though

 

Looks great thanks for posting. I would suggest that you scan the page and/or make the readings clearer on the chart. You don't HAVE to PROVE anythign but it would be nice for the eyes on the form. THanks also for the movie in the other thread.

 

the print out is horrible and i don't have a scanner here sorry

i'm on my way to the drag strip right now to drive this car 14's ahoy!

 

Good luck with the runs.

Go run some nice 14's and silence all the nay sayers.

 

So this is the only RX8 in the country that can be dynoed?

 

To be clear as a recap, the top two graphs were on race gas correct?

I didn't read all of that other closed thread, but I believe this was IKE's contention. Good race gas (high energy density more than just octane rating) should give you 5% or so more horsepower.

Thanks for the graphs,

-Mr. Wigggles

 

188 was regular 93 octane

other two had 103 octane mixed in with the 93

 

only 687 views goddamn

 

I've seen dyno sheets here from 180 to 196 now. I saw 180 from a borla exhaust modified 8 and 196 from "race gas". I saw 191 from a stock 8 in the California owners forum. Why the wide difference in "numbers" which appearantly is only bothering me. I understand the differences if the fuel is different and the exhaust is different but why would the borla dyno be lower than a stock one later on? What gives? If the 'experts' on the site can't seem to get accurate readings from the dyno why is it such a big deal that Mazda didn't either. Somebody explain it to me? Atleast when Mazda screws up they admit it and give me something for wasting my time. Starting to seriously doubt the experts on this site. Seems like more know it alls than actual experts around here.

 

just to update u guys. someone in cali got their car dynoed, horsepower was 191



http://www.rx8forum.com/showthread.p...8&pagenumber=2

 

Hmmm could it be possible some RX-8's made it through to the states without being reflashed? Because those last two dyno's seem to blow the "Can't dyno the car due to the computer sensing something wrong with the front wheels?" theory.

With these last two dyno's now, it puts the car right on the mark for the 238 HP claim with 18% drivetrain loss.

 

http://yarchive.net/car/dyno_accuracy.html

plus you need to factor in the weather

mike

 

So ignoring the race gas dynos, with 93octane, we have a 188 and 191whp. Hopefully with more breakin time, it'll go up by another 5-10whp. I still expect a 238HP car to get closer to 200whp when fully broken in. All the S2K friends I have have dynos that hit 200-205whp. So hopefully the Renesis still has a little loosening up to do before showing full power.

But now that the dynos are getting closer to expected, what about that discussion about the RX8 being un-dynoable? Is that now bunk? Or are some actually underrated now with the spec drop?

 

it will have an issue on the dyno if you don't fully disable the traction control. the ecu doesn't like seeing the rear wheels going 100MPH and front ones going zero

 

Hey guys, been on the east coast and just now getting power restored in my area. I think people need to realize that dynos tend to have variance in how they read as will cars from all manufacturers. Also, as Mike pointed out weather is a factor as well. Did anyone ever dig up the info on the old dynos to see what type of gas they were running. I think it's looking more and more likely that the RX-8 was tuned to run on higher than 91 octane gas, and it would not be the first car to be this way. The STis are running horribly on 91 octane and the new V6 accord is making up to 10 more HP on dynos with higher octane gas, I'm sure there are other examples out there. Hopefully Mazda is working on a reflash (if that is the problem) and Mazda will get this whole thing straightened out and maybe even have a different map for the people stuck with 91 octane.


When are you taking the car to the strip Vosco, and will you guys be using race gas or a lower octane?


Ike

 

i did yesterday. ran 93 octane and full street strim with traction control OFF. i got two runs. first run 15.49 @ 91mph with endless wheel spin. 9.2k rpm clutch dump on launch 60 FT 2.5. 2nd run slipped it at 9k rpm then dumped it. same effect but lots of spinning but faster time. 15.21 @ 91.8 mph with 2.36 60ft . the car has alot better in it. i was just getting used to the car. if i drive it again i should be much closer to the 14.99 territory

 

Did Ito run the car as well, and if so what were his times?


Ike

 

Didn't some of the megazines test the launch using a 7k or 8k clutch dump? I wonder if it would make a difference.

 

C&D did an 8k clutch dump. C&D also most likely have an excellent and controlled track/surface to run on unlike most of the dragstrips we will be going to.