Did I stump the pros? Nothing?

I am curious if anyone has any experience with this mod. Pedro states that it is really only for improved sound.

Most any of the mods done here will have little affect on the HP or Torque without an accompanying change to the computer mappings to take advantage of improved flow etc.

However some mods lead to faster response, improved sound, better functioning etc so it depends what your goals are when you consider an "Improvement".

Like Pedro said, improved sound in case desnorkling does not get you the sound you are looking for.

Don't think the juice will be worth the squeeze...

But if it makes you happy then go for it!

Good luck :)

Vacuum is commonly used as a switching mechanism vs. relays and solenoids.

None of us are here to "massage our intellect". We're here to share our knowledge and passion for Boxster's.

There wasn't much point in responding to these rhetorical questions. Your question was answered - you'll need to find a way for the Pedro exhaust to provide vacuum to the Tip transmission.

Thank you for the response. That would explain something I read along the lines of at a certain point a valve opens/closes, associated with the throttle.

With all due respect, I employed the 'massage the intellect' as my choice of words because it appeared that no one was responding to the original actual inquiry. It appeared that no one had an answer to my inquiry(s). In the future I'll tone down the vernacular to mitigate misconceptions, and to provide balance.

My other questions weren't rhetorical. I'm quite curious, now having been bitten by the Porsche bug. I've an eye on future Porsches, and for something that might seem innocuous, that vacuum line for example, I'm interested in learning about the progression. The improvement. That would be a general discussion and, last I checked, this is the forum for it. The BMWs I mastered the same way, and it was learning from people with many, many posts and lots of bruised-knuckle experience. People like you, likely. So, thank you.

:cool:

If it doesn't do anything other than increase noise, why bother? Do you want your Porsche to sound like a ricer with a cheap CAI?:barf:

There are mods that will improve your car's performance that are easy and (relatively) cheap, like an under drive pulley or a spin on oil filter kit. Or even a magnetic drain plug.

"Cool Prius!"

- Nobody

You haven't seen my Prius.

How many extra bhp does the magnetic drain plug give? ;)

On your car, 264hp.

That’s how many horses you will prevent from leaving the stable if your engine grenades due to metal in the oil. An ounce of prevention...

Yes. A ricer. I'm looking at fart-can pipes on eBay, too. 2 footers straight out the back, 6 inch cans. 26HP gain.

That under-drive pulley I've looked at... but read somewhere that there's a small piece that has to be ground down in order for that pulley to fit. Is that correct? I've the pulley on my Pelican wishlist... but have held of purchasing it until I know it'll just bolt on... no extra shimming.

The spin on filter in on that list, too.

AOS is next on the list of parts I'm hoarding, for in the spring I'll replace the AOS, plugs, tubes, water pump, thermostat, etc.

Cheers!

http://986forum.com/forums/uploads02...1513451978.jpg

Yes, a portion of the boss on the engine case needs to be ground down a bit in order to install the under drive pulley. Full removal of the boss isn't recommended as the boss might need to be used at a later date to hold the engine at TDC for repairs.

The installation recommendation is to only remove enough of the boss to clear the UDP while still retaining enough of the boss for future use.

This thread has relevant information and discussion. Do a search on "under drive pulley" and you'll find that this subject has been well discussed.

http://986forum.com/forums/performance-technical-chat/23645-installed-raby-under-drive-pulley.html

If you are considering tracking your car, then I would highly recommend a UDP. Not for the HP gain, which may or may not exist, but just to play nice with your peripherals, especially your PS pump. :eek:

For me I did the UDP for ps reasons as mentioned above, and imaginary or not, it felt like a nice little bump in power, especially in 1st and 2nd.

At least 15.

Thank you. Read the material... the boss... makes sense.

Cheers.