The Snorkle - why?

[Dlirium]

Originally Posted by litespeedp

I'm very glad that my new to me 2000 S came desnorkeled.The response to throttle positions during the different RPM ranges is vocalized.

This is part 1 of 3 of the brilliant intake/power engineering of the engine.



(FIRST) movement- Variable induction sounds

(SECOND) movement-The mechanical processing of the induction with the valve train

(THIRD) movement-The rise of the exhaust note as it reports

All of this is placed at the driver's left ear on left hand drive cars.Tremendous!

Unfortunately you are incorrect. According to JFP below, you have completely waisted your time.

[RawleyD]

Originally Posted by Dlirium

Unfortunately you are incorrect. According to JFP below, you have completely waisted your time.

He didn't waste his time, the previous owner did. :chicken:

And if your car came desnorkled, you wouldn't have any basis of comparison. Maybe lightspeed would have liked the sound better with the snorkel on?

:dance:

[Slate 01]

I sense some bitterness. Crazy. Maybe some people like the sound better with it removed, to each his own.

[JFP in PA]

Originally Posted by Dlirium

Unfortunately you are incorrect. According to JFP below, you have completely waisted your time.

Kind of reminds me of when kids put baseball cards in the spokes of their bikes to make noise..............

[dghii]

Originally Posted by JFP in PA

Kind of reminds me of when kids put baseball cards in the spokes of their bikes to make noise..............

Looks like he's trying to give his bike more Agusto.

[Slate 01]

Please remove stick out of your arse. YOu don't like it cause you are hardcore track dude, great, we bow to your prowess, you are the most awesome boxster owner, we aren't worthy to be in your awesome trackdude presence. There you happy? Dang, some people are tight@$$.:chicken:

[j.fro]

I thought that somewhere somebody had posted Dyno results showing 5hp on the top end for de-snorked cars.

[Slate 01]

Originally Posted by j.fro

I thought that somewhere somebody had posted Dyno results showing 5hp on the top end for de-snorked cars.

Don't screw up PF Flyers jag with dyno facts.

[Jager]

Originally Posted by j.fro

I thought that somewhere somebody had posted Dyno results showing 5hp on the top end for de-snorked cars.

Yep.
Finally: Dyno charts of de-snorked 986S!!!

[JFP in PA]

Originally Posted by Jager

Yep.
Finally: Dyno charts of de-snorked 986S!!!

Perhaps the most interesting, and as well as humorus point is that it was one run, under questionable conditions (a mobile dyno setup), and even many of the posters in this long thread questioned the validity of the data. One poster summed the data perfectly:

"Dyno results can be funny and not always verifiable or repeatable. The Lister must admit this if he's the kind of engineer, he seems to be.

So many variables must be exactly the same on each run for any results to be meaningful, especially since you're claiming a very small % gain of overall power (1.9%). Some, but not all include: Ambient Temp, Barometric pressure, Fuel flow, Octane, Alternator Output, each line of code in the DME operating w/o fault on each run, Engine Temp, Tranny Temp, Bearing Temp, and on and on.

For example, an Alternator (whose power draw is variable and not constant) alone can draw as much as 4-30 crank HP because of the inefficiencies in a Belt & Pulley system, so if it was filling demand on the 1st run, but not the 2nd, this alone could account for the variance seen.

The best method is to do multiple runs exactly duplicating the conditions of all previous runs and then averaging the results. Then, you reverse it, put the snorkel back on and see if you consistently achieve the previous Baseline numbers over an average of multiple runs. If these results aren't duplicated to within a pretty narrow degree, there is some variable not being accounted for.

Just because you get a graph from a single run which supports your theory, isn't in, and of, itself proof of anything..."

Rule number one on dyno data: If it isn't reproducible, it isn't..............