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.

 

dyno scans?

 

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).

 

I like the blue 8 with the INGs front bumper.

 

nice pics !

 

very nice,no action pics?slips?

 

nice pics.

 

great looking pics; looked like a fun day

This is my fav. pic:

 

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

 

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.

 

Good numbers for a non custom tune and just the BHR ignition! Looks like Ray did a good job!

 

nice pics