Dyno Day Pics
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Dyno Day Pics
We had a local Mazda club dyno day in Colorado Springs, and it ended up being a rotary takeover. We had 13 rotaries there at one point, 11 of them hit the dyno. Just figured I'd share some pics.
For bragging rights, I ended up with the highest HP 8 (not that 189 is exciting). Haha. The highest HP overall went to the FD with the RPF1s on it, 403 hp. All runs on a Mustang dyno.
![](http://img.photobucket.com/albums/v682/TifosiF1/ontheway.jpg)
![](http://img.photobucket.com/albums/v682/TifosiF1/moresevens.jpg)
![](http://img.photobucket.com/albums/v682/TifosiF1/tothedyno.jpg)
![](http://img.photobucket.com/albums/v682/TifosiF1/openthehoods.jpg)
![](http://img.photobucket.com/albums/v682/TifosiF1/hangingaround.jpg)
![](http://img.photobucket.com/albums/v682/TifosiF1/sevens.jpg)
![](http://img.photobucket.com/albums/v682/TifosiF1/rpf1.jpg)
![](http://img.photobucket.com/albums/v682/TifosiF1/fronts.jpg)
![](http://img.photobucket.com/albums/v682/TifosiF1/alllinedup.jpg)
For bragging rights, I ended up with the highest HP 8 (not that 189 is exciting). Haha. The highest HP overall went to the FD with the RPF1s on it, 403 hp. All runs on a Mustang dyno.
![](http://img.photobucket.com/albums/v682/TifosiF1/ontheway.jpg)
![](http://img.photobucket.com/albums/v682/TifosiF1/moresevens.jpg)
![](http://img.photobucket.com/albums/v682/TifosiF1/tothedyno.jpg)
![](http://img.photobucket.com/albums/v682/TifosiF1/openthehoods.jpg)
![](http://img.photobucket.com/albums/v682/TifosiF1/hangingaround.jpg)
![](http://img.photobucket.com/albums/v682/TifosiF1/sevens.jpg)
![](http://img.photobucket.com/albums/v682/TifosiF1/rpf1.jpg)
![](http://img.photobucket.com/albums/v682/TifosiF1/fronts.jpg)
![](http://img.photobucket.com/albums/v682/TifosiF1/alllinedup.jpg)
![](http://img.photobucket.com/albums/v682/TifosiF1/thelineup.jpg)
#3
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I'll get mine in, it's at home, and I haven't scanned it in yet. Some other folks are posting them on our local site, but none of the rotaries so far. The other 8s were somewhere in the 160s, I think. The only engine mods I have at this point are the BHR Ignition Kit and the Cobb AP (running a Cobb tune).
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Since there is so little info on N.A. HP, I thought I'd share a few things:
The Koni Challenge RX8's (which are allowed to run any header/exhaust combination you can dream up along with any intake as well) make 200-210'ish at the rear wheels. Our best package runs a consistant 210 on a dyno jet.
Now here is where the info get's fun. On the Star Mazda cars seen here: http://www.starmazda.com/series/specifications.htm , many of the cars make 250 on an engine dyno. These cars run a very unrestrictive exhaust along with Motec engine management (same as the 3 rotor Speed Source Rolex GT cars ran last year and the years before). Currently all the Rolex GT cars must run the Bosch 4.3 engine managment ECM/ECU. Cost of integration of this product (ECU with sensor package, engine and chassis harnesses, etc) is well north of $15,000 WITHOUT installation labor.
For the 250 number, as a general rule, most people acknowledge a 15% drive train loss in power when comparing engine dyno numbers to rear wheel numbers. 250 X .85 = 212. This is arguable as it is drivetrain dependant. For argument's sake most people generally agree on 15%. Some people say 18, others as low as 12%. Whatever. Thought some of you may want to know. I have the facts to back this up and in the bigger world of professional Renesis engine building this is a well known fact. Please don't argue this post. I have a zillion runs over 200 h.p. to back it up.
p.s. Huge gains with a header. Huge. hint hint
The Koni Challenge RX8's (which are allowed to run any header/exhaust combination you can dream up along with any intake as well) make 200-210'ish at the rear wheels. Our best package runs a consistant 210 on a dyno jet.
Now here is where the info get's fun. On the Star Mazda cars seen here: http://www.starmazda.com/series/specifications.htm , many of the cars make 250 on an engine dyno. These cars run a very unrestrictive exhaust along with Motec engine management (same as the 3 rotor Speed Source Rolex GT cars ran last year and the years before). Currently all the Rolex GT cars must run the Bosch 4.3 engine managment ECM/ECU. Cost of integration of this product (ECU with sensor package, engine and chassis harnesses, etc) is well north of $15,000 WITHOUT installation labor.
For the 250 number, as a general rule, most people acknowledge a 15% drive train loss in power when comparing engine dyno numbers to rear wheel numbers. 250 X .85 = 212. This is arguable as it is drivetrain dependant. For argument's sake most people generally agree on 15%. Some people say 18, others as low as 12%. Whatever. Thought some of you may want to know. I have the facts to back this up and in the bigger world of professional Renesis engine building this is a well known fact. Please don't argue this post. I have a zillion runs over 200 h.p. to back it up.
p.s. Huge gains with a header. Huge. hint hint
Last edited by EricMeyer; 10-29-2008 at 06:54 AM.
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A few other folks took some action shots, but I forgot I had my camera with me until the last car (the FD pictured). Even then, I think the action shots were only of my car and a Speed3.
Thanks for the compliments. Hopefully, I'll get some better shots when we do our spring meet.
Thanks for the compliments. Hopefully, I'll get some better shots when we do our spring meet.
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