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- 2015 BMW 335i Sedan / 2015 Nissan Pathfinder Platinum 4WD
Maybe he just didnt know when to shift...like I said its hard to say, but I dont think its impossible...
With ECU Flash, Rx-8 gets Owned
- Thread starter DiscreetSpeed
- Start date
RX8
Sports package (6speed): with your mods you'd have only beat it if it was a bad driver
The 5speed automatic- well, our car with your mods without the ECU flash could have taken an automatic rx8....... it doesn't have a turbo.... it has no jump.... at the low end you woulda roasted him but he woulda caught up later.
Anywho, like someone said the RX8 was never designed to and will never replace the RX7. The RX8 was meant to be a 4 seater sports car. It's a car the emphasizes design and quality and in all honesty they accomplished that. It's got quite a few unique interior and exterior design aspects and mechanicly it will be the first reliable rotary engine.
Sports package (6speed): with your mods you'd have only beat it if it was a bad driver
The 5speed automatic- well, our car with your mods without the ECU flash could have taken an automatic rx8....... it doesn't have a turbo.... it has no jump.... at the low end you woulda roasted him but he woulda caught up later.
Anywho, like someone said the RX8 was never designed to and will never replace the RX7. The RX8 was meant to be a 4 seater sports car. It's a car the emphasizes design and quality and in all honesty they accomplished that. It's got quite a few unique interior and exterior design aspects and mechanicly it will be the first reliable rotary engine.
12psi=5 more than stock. At stock, we can pull 160 whp w/ the new flash. Every pound you add can add from anywhere between 7-10 whp (this is a common rule of thumb) so... 7*5=35whp+160whp=185whp min. Maybe he's more efficient so we'll say 50 more whp...now we're at 210whp. Doesn't seem like much....but take into account that the torque will be at 185-190 ft/lbs min.(from empirical data and inference) then it seems quite a bit closer. Note also, that the RX-8s have not dyno'd very well at all.
Don't get me wrong...I love that Mazda brought back a rotary; I'm an engineer...we love this crap! I just think that it's not quite the "sports" car it is portrayed as. Or rather, it's not quite the sports car that some people thought is was replacing. (evil)
Don't get me wrong...I love that Mazda brought back a rotary; I'm an engineer...we love this crap! I just think that it's not quite the "sports" car it is portrayed as. Or rather, it's not quite the sports car that some people thought is was replacing. (evil)
Just got through searching at nopistons.com and here's something I found which may have some relevance to the discussion at hand:
I have a customer who dynoed his and he got 184 rwhp just like the other guy from the rx8forum. He is sending the dyno sheet to Mazda R&D and hopefully to get a reply and explanation shortly.
Chuck Huang
So, still think it's BS for a Mazdaspeed Protege boosting 12psi with the new flash and is 300 lbs lighter than an RX-8 to hang even through 1st and 2nd and then pull away in 3rd?
I have a customer who dynoed his and he got 184 rwhp just like the other guy from the rx8forum. He is sending the dyno sheet to Mazda R&D and hopefully to get a reply and explanation shortly.
Chuck Huang
So, still think it's BS for a Mazdaspeed Protege boosting 12psi with the new flash and is 300 lbs lighter than an RX-8 to hang even through 1st and 2nd and then pull away in 3rd?
servoeyes said:
Actually you can probably pull 155 at best with simple stock and flash. The ECU doesnt add but maybe 4 or 5 HP... it just optimizes it in the right areas
You also gotta take into account that you don't get the same amount of gain for each and every PSI you add.... it actually lessens for each PSI you add. So while you get 10hp extra at 9psi you might only gain 6hp going from 10 to 11psi.
Here are the ONLY 2 dynos known to have been done with the new flash. Like I said.... an RX8 automatic.... any decently mod'd MSP could probably take. The 6speed..... well ..... that's not gonna happen with said mods unless the driver is s***
Chojins Dyno- Injen CAI, Protosport 2.25" DP, and JIC Magic SUS 60mm Exhaust.
Pkay- Injen CAI, NGK BKR7E Plugs
With the torque/HP jump in the midrange, I'd be surpurised to see and RX-8 keep up at first. I also wonder about the gearing of the RX...I know that the MSPs power gears (for starts, anyway) are the two typical autocross gears (2nd & 3rd). For someone that hasn't driven a car with the new flash, these gears are strong...with the flash they are completely different...they are unassumingly strong. They come out of NOWHERE!
Pkay said:
1) You're right...I was forgetting about shawn's exhaust...the most people have some form of intake...so I figured that as a given.
2) True...you do lose compressor efficiency, but probably not too much until 10 psi. That's why I figured 7whp as well to get a low to average result.
3) Again...the RX-8 is nice, but I just seem to think w/ the new flash and 12 psi we'd surprise the hell out of one, even from the line. It may have been as simple as that...
