Ok folks here's the 411 we have all been waiting for.

Our good friend up here in NorCal Mike (not me) had his tight a$$ R stolen awhile back. He tried to get another R, but it fell through due to loan laws from other states, etc...
Anyway he decided to get a RSX for the time. After 850 or so miles and following the good old breaking period, he came to DSR and decided to change the filter and oil and also dyno it at the same time to take it to redline for the first time.
Note: he's still using non-syntheic for alittle bit longer. The RSX is still bone stock with nothing done to it at all.
Now here's the dyno's:

This dyno shows his baseline dyno compaired to my friend stock '00 R.


This dyno is kinda cool. This time we decided to try getting power from this RSX. So we unhooked the axel back and dyno'd. We got a 2-3whp gain. Then we decided to try unhooking it directly from the cat and just leaving the header and cat on. This time it jumped. The exhaust on the RSX is amazing small in diameter. Here's a plot showing his orginal baseline vs. after unhooking the full exhaust and leaving just the stock cat and header on. I figure with a header upgrade, cat upgrade, and exhaust up grade he will see this type of gain or slightly higher. Not bad!


Sorry for the strange photo/dyno charts. My scanner doesn't like this windowsMe crap. Oh well. So to some it all up, the extra approx. 10whp and extra 8trq will not pull the RSX ahead of the current US type R. The fact is, the RSX weights more more (base model RSX type S weights 2767lbs (without any options), the 97-98 R's weight 2595lbs and the 00-01 R's weight 2639lbs. Thats a 128lbs weight difference from the RSX type S vs. 00-01 R and a 172lbs difference from the RSX type S vs. 97-98 R. The extra 10whp and 10trq will not make up that type of difference. I would say if the RSX type S could hit 180-190whp, then we'll talk.)
Still, I like the gains the RSX got from playing with the exhaust. Who knows, maybe with basic's (header, cat/test pipe, exhaust, pulleys, and VAFC it could see mid 180's!!!!


[Modified by Rboosted717, 1:39 AM 9/1/2001]

 

interesting

 

Good dyno pic Rboosted. It's interesting to see RSX-s put down 172whp. When Emmett ('02 RSX-S) and I ('01 ITR) did dyno 2 weeks ago, he put down 167 whp and I 162.7whp. Hmmm.

 

Excellent detective work!

 

put another 2000+ miles on it when the rings fully seat it will pick up some more.

 

Cos, you got an ITR?! You sneaky little punk! Congrats.

 

Ben - yes. Let's just say that the timing wasn't right to tell you guys back in June due to Rich's accident.

 

that thing has an ungodly torque spike at the VTEC crossover. I would have thought they would try and make it a nice smooth curve like the GSR has.

 

there may be a lot of gains to be had from 5000-6000 rpm with fuel tuning as well...the kicker is dealing with the VTC of iVTEC and compenating for what the intake cam timing will do electronically.

So I think as you have implied that the basic bolt-on aftermarket gains are ripe and to be had with the RSX Type S.

Again the rumours of a USDM Type R coming are brewing though....everyone I hear says soon....

Yeah...I'm also surprised the dual stage manifold on this RSX does not flatten the torque curve...again the emphasis in small displacement performance is on making power above 5500 rpm though with Honda... I think they've abandoned trying to make huge midranges in inline 4's as a philosophy since the GSR stuff didn't pan out.

 

I was about to say the same exact thing?...Whats up with that sudden boost in power at 6000RPMs? It goes up like 40+hp within a 500-800rpm span....must feel like a freakin rocket launch at crossover

 

Well I've been in a RSX Type S and the cross over is for the most part kinda smooth. Though I guess with open header it really kicks then..makes you wonder why not run a race header straight out with piping going to the door. Seems like thats where this car is going to make it power boost...but just and idea.