This is part III of the series where I intend to dyno my car
before and
after each modification. Here's a
Link to my stock dyno run, as well as the
free flow exhaust run. To know all about how dynos work, read through
this thread.
• Honda rates the Civic @ 130 BHP from factory. Taking into account drive-train losses, my stock Civic did 117 BHP on her first visit to KS Motorsport's dyno. After getting a free flow exhaust, the 2nd dyno visit saw the car churning out 121.5 BHP.
• I've never thought of big K&Ns giving you more than 1 - 2 BHP, if at all. That's probably true for most performance intakes out there. The 69 series K&N Typhoon kit I purchased from Methods.co.in is specifically designed for the Civic. K&N claims that it adds 5.71 BHP. Baah, I said. It took about a month to import it, and have delivered to my office.
One regular work day afternoon, the box arrived
And the first thing you see, upon opening the box, is a dyno run chart:
The K&N intake I got for my Vtec was just that; an air filter! On the other hand, there is a lot more stuff packed into this "
For Honda Civic only" package:
The massive filter:
Exceptionally high quality rubber hose:
The same afternoon, we scooted to KS Motorsports. Always see some interesting cars at his place. Here is a souped up Lexus:
Stock air-filter and box removed:
K&N installed in its place. Took about 30 minutes to complete the install. The packaging came with detailed install instructions, but really (small) lousy pictures:
Safely buckled up. She's becoming a regular visitor to this bay:
A video of the run:
And the result :
125.5 BHP. We had a total of three runs. When the Civic was cold, she churned out 124.1 BHP. The final run recorded the day's best @ 126.7. For the sake of averaging, I'll stick with the middle one:
What's it like?
• The typhoon uses the stock air feeder pipe to bring outside (colder) air to the intake. Also, the heat shield should be blocking some amount of engine heat. I'm told that, as the speedometer climbs, so will the airflow be better.
• Above 3,000, the K&N makes its presence felt; the sound is to die for. However, it’s also loud and wont go down well with everyone. My folks found it especially annoying in the 3,000 - 4,000 rpm range (when it's the loudest). Below & above that rpm range, the Typhoon isn't that intrusive (though audible at all times).
• The car definitely feels a tad sprightlier. And the free flow & typhoon intake have made her
extremely revv-happy. I'm satisfied with the basic mods thus far. She's nearly as much of a maniac as the OHC Vtec when redlining...a car that's fun to work hard on the open road.
• The K&N hasn't made as much of a difference to the low end throttle response as the free flow did. The performance exhaust brought a giant improvement to how the car behaves in traffic. No real difference at low speeds with this bolt-on mod.
Other Points:
• To the uninitiated : Don't get misled or expect even a 1 BHP gain with a stock replacement filter. Good plumbing & positioning with a short-ram / cold-Air-intake can get you a handful of horses though.
• The easy mods are over. Now what? Remap? Piggy back? Forced induction
