Insulate the air box for more hp

[Fred W]

There was someone that had rigged up a dry Nitrous injection system on his FJR a couple of years back. Never did hear how it worked out for him. Maybe the engine fragged?

No, Fred. My engine did not "frag." Your comment shows a great deal of ignorance regarding NOS. I have a great deal of experience in running both dry and wet NOS. And no, the world is definitely not flat, either.

Ignorant? Really? Although I have never actually used the stuff (NOS), I do understand pretty well, how it works. I even mentioned the part about adding more fuel in addition to the oxygen in the paragraph before your snipped quote.

The reason I (half jokingly) suggested you might have "fragged" your engine isn't because I thought that NOS is somehow "explosive". It is because (just like any other forced induction method) you would have increased the power output of your engine radically beyond what the design engineers had originally spec'ed, so the rest of the internal engine components (crank, rods, etc.) may not be adequate to handle upwards of 50-70% more actual power. There is always that risk in any scheme to significantly increase power.

I know lots of people that have fragged their (car) engines by upping the boost too much. Hey, in many cases it's only software control that limits the boost, so it's pretty easy to take a small engine built to produce only 200hp past the 300hp mark. The longevity of an engine after doing that is always a question.

The other reason for my quoted statement was because I had not read any real results follow up post after you posted how you had done it. That was the "joke" part, that apparently escaped you.

 

[charismaticmegafauna]

...(just like any other forced induction method) you would have increased the power output of your engine radically beyond what the design engineers had originally spec'ed, so the rest of the internal engine components (crank, rods, etc.) may not be adequate to handle upwards of 50-70% more actual power. There is always that risk in any scheme to significantly increase power.

'Struth..., forced induction (especially turbo-charging) can, easily, get out-of-control.

Honda, in their turbo'd bike of almost 30 years ago, used forged pistons for the first time in their history (previously, they'd won many World Championships relying on cast pistons).

Chrysler, when offering the public the turbo'd Omni-Rison GLH (Goes Like Hell), warned in the owners manual "Do Not Tow with this car". Apparently, engine melt-down could be the likely result...?

I know lots of people that have fragged their (car) engines by upping the boost too much. Hey, in many cases it's only software control that limits the boost, so it's pretty easy to take a small engine built to produce only 200hp past the 300hp mark. The longevity of an engine after doing that is always a question.

It's really only the advent of modern computer controlled engine management that allows manufacturers to offer public-consumption of forced induction.

Soon, 2011, we'll see many auto-makers selling small forced-induction (turbo-charged) engines to the American public -- to drive however they will...! :blink:

I guess we'll see...

 

[charismaticmegafauna]

A (maybe?) relevant comment from Kawasaki's press release for the new 2011 Ninja 1000 Sport-Touring bike:

- Intake system routes cool air to the airbox via ducts in the fairing, minimizing performance loss due to heated intake air

And Kawi also stated (maybe a little less pertinent?):

- Duct positioning - close to the rider - allows the intake howl to be heard and enjoyed

 

[cruppelt]

Wondering if anyone on the forum has any experience with this particular horsepower mod. The idea is to insulate the air induction box, thus keeping the inside of the box cooler, thus making more power. This company, performanceandperfection.com focuses primarily on sport bikes, but when I contacted them, they said they also do FJR air boxes. I can buy an insulated box straight up or send in mine for the mod. A stage 2 is said, by them, to give up to 8 more hp and 2 to 4 ft. lbs. torque. $150.00 for the silver insulation and $309.00 for the stage 2 gold one.

Thank you so much for posting this, I laughed out loud when I looked at the website! :lol:

This is a one man show, and the website shows that he's mainly doing car detailing, but obviously now came up with a great idea on how to make a lot of money quickly. It seems to me the 140° was taken in a parking lot on a hot day, the 99° in his garage. The air is flowing very fast through the intake at any speed, and it takes a badly designed airbox that's closer to the engine than our bikes to show a significant difference with some GOOD insulation around it. They whole thing seems plausible until you realize that the air is not stagnant, but actually constantly moving through the box. It couldn't hurt to do this, but don't expect much out of it for the FJR. Certainly nothing like the claims he stated.