Originally Posted by dolebludger,Apr 10 2006, 10:08 AM

I can see two problems with relying on such a CAI simulator to dyno hp and torque gains and losses from a CAI.

First, the ECU must be reset to account for the different intake. xviper has a good explanation on this somewhere on this board. I recall that it involves disconnection of one battery terminal. xviper goes on to say that, as an alternative, you can just drive the car a couple of weeks or so and the ECU will reset itself. So what I mean here is you can't just install a CAI or CAI simulator and dyno the car immediately after, and get an accurate result. The ECU is set wrong when the "with CAI" test is run.

Second, many CAI's, both "store bought" and specially fabricated, include a "ram air" function that does no good unless the car is rushing through the air. In fact, a car with a CAI that incorporates any "ram air" effect cannot be accurately evaluated by dyno (even if the ECU is properly set) unless a rush of air is supplied to the intake point at the time of the dyno test.

I don't mean to be disrespectful to 2QYK4U, but merely want to point out that a dyno on a "simulated CAI" has some accuracy problems unless the ECU is first reset, and unless ram air is supplied somehow (in cases where the particular CAI uses ram air).

Thanks,
Richard

Originally Posted by Shadow_S2K,Apr 10 2006, 02:06 PM

I think if there is no gain on a simulator...you prolly will see very little to no gains at all in real time.

Originally Posted by S2kNY,Apr 10 2006, 02:58 PM

why don't you just get a cai? what's the big deal, just take the steps to avoid hydrolock or just get a short ram intake. I was also sceptical at first about the hydrolock but I put a aem cai and it's the best sound! It makes a 100% sound improvement, at a low rpm you won't hear it at all but once you hit v-tec it really roars.

Originally Posted by Dave-ROR,Apr 10 2006, 12:51 PM

That's not true. You can have too large, or too small, diameter piping for an intake, just like an exhaust.

You just just bend a random pipe so it'll fit and put a filter on the end when you design one.

Ok, some might, but....

Originally Posted by S2kNY,Apr 10 2006, 12:58 PM

why don't you just get a cai? what's the big deal, just take the steps to avoid hydrolock or just get a short ram intake. I was also sceptical at first about the hydrolock but I put a aem cai and it's the best sound! It makes a 100% sound improvement, at a low rpm you won't hear it at all but once you hit v-tec it really roars.

Originally Posted by Shadow_S2K,Apr 10 2006, 03:40 PM

The intake piping has to be the same or close to being the same as the throttle body opening...to be able to be secured on. If you have seen the design of a AEM or other intakes you will understand. So lets say IF the intake simulator's piping is the same as an AEM intake, the results can be related to real time gains or loses.

Originally Posted by 2QYK4U,Apr 10 2006, 03:50 PM

1. For the millionth time, there isn't an aftermarket intake available for the MY06.
2. People are too caught up in "ahh" factor associated with hearing VTEC kick in. Just because you hear it kick in doesn't mean it is operating optimally. The engine operation is optimized when VTEC engagement is very smooth. If you have any doubt just talk to those who build Honda race engines.

Originally Posted by Dave-ROR,Apr 10 2006, 02:01 PM

Uhmm.. they make steel and silicon adapters to allow a larger or smaller diameter pipe to be added.

As I said before, I won't say that a CAI will be good. It's just as bad to say that it will be bad until one has tested an actual product.

Originally Posted by Shadow_S2K,Apr 10 2006, 04:09 PM

The silicon adapters you speak of isn't there to hold the intake and throttle body in place, it is to connect the two. The the C-clamps that are provided are then use to secture the hose onto the throttle body and intake to connect the two.

If you think about it, if you had a larger pipe it would notbe able to fit into the rubber adapter that is provided. They usually are a very tight fit and it takes some effort to get it over the throttle body and intake. And if the intake piping were to small, the pipe would not be secured since the c-clamps would not be able to tighten down on them enough since the rubber adapter is very thick. If you have ever installed a intake you'd understand what I was saying.

To intall an intake onto the S2000, the piping and the throttle body would have to be similar, the thick and stiff silcon hose that is provided to connect the two is the same diameter all the way through to be able to make a snug fit onto the throttle body and intake, thus allowing the c-clam to tighten down onto them.