Entertaining the Pedro intake mod...

[thstone]

Originally Posted by Starter986

What purpose does that vacuum serve on the 98 Boxster?

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

Originally Posted by Starter986

Further, to further massage your intellect, ...

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

Originally Posted by Starter986

...what changed after 1999 that rendered that line absent? What method did Porsche employ in later models to achieve the same result enjoyed on the 97/98/98 models? What was the workaround?

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.

[Starter986]

Originally Posted by thstone

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.

[Brian in Tucson]

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?

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.

[edc]

Originally Posted by Brian in Tucson

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?

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?

[Brian in Tucson]

Originally Posted by edc

How many extra bhp does the magnetic drain plug give?

At least 15.

[Starter986]

Originally Posted by Brian in Tucson

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?

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.

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!

[thstone]

Originally Posted by Starter986

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.

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.

Installed the raby under-drive pulley

[Starter986]

Originally Posted by thstone

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.

Installed the raby under-drive pulley

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

Cheers.

[Burg Boxster]

Originally Posted by Brian in Tucson

"Cool Prius!"

- Nobody

You haven't seen my Prius.