mortymower

I have heard that if you atmospherically dump the wastegate on these cars it is way to loud and annoying, but could I just drill four or five holes in the wastegate pipe to get the sound when i get on the gas?

951North

I dunno man sounds kinda Ghetto? I'd go for what performs best...

theedge

If its dumped, youll only hear it when the wastegate is open... And when itsopen chances are youre not going to care or notice

Holes wont do anything different. The wastegate is open or closed, and its closed at low throttle/no boost/etc.

Rogue_Ant

I don't care if it makes 15 extra hp, the sound of an wastegate dump isn't worth it IMO.


Rogue

philcav7

Excuse my ignorance, but what is this sound that you are refering to?

I have never heard an open wastegate...

LtReid

the sound of a open wastegate dump is like the warning to women and childern that you are coming and to get out the way, damn that its a furoius sound that is awesome, dumped wastegate all the way hahahha

theedge

When its dumped it sounds like ripping canvas, but its masked by the other sounds. You only hear it when the WG is open, so during shifts under boost, when youve hit max boost, etc.

Rogue_Ant

Here is a link...

http://www.geocities.com/rogue_ant/Tial.wmv

This is a Subaru WRX, with the wastegate dumped to ATM.


Rogue

mortymower

What i meant by the holes was to hear the sound but not quite as loud as a completely dumped wg

is this true

87944turbo

Remember that even when your WG is closed the exit pipe from the WG is still connected to the rest of your exhaust system. So if you drill a hole between your WG and the rest of the system, you will have some exhaust and noise coming out of the hole(s) even at idle, let alone when you WG is open.

It's hard to imagine what your idea would sound like. Keep in mind that drilling holes in pipes is how some musical instruments are made (e.g. flutes, etc.). While I am not suggesting that your car will sound like a calliope, you could likely tune the sound based on the number of holes you drill.

An open WG is loud, whether or not you find it annoying is subjective. I don't find mine annoying, but thats just me. The people I drive past probably do...

MM951

I'm not positive how that is setup on a 951 (never seen one) but I'd imagine the wastegate is tied into the exhaust, so drilling holes would make a big exhaust leak...

I think MAF + quiet exhaust + open dump = best sound ever. Next turbo car (hey maybe my 944) will have a vaccuum operated exhaust dump (runs off of your wastegate) with atmos. dump. quiet until boost

87944turbo

Some pics of both.

LtReid

does it have that short of gears or is he just shifting early


funny thing is, as I was watching this my buddy pulled up with his wrx

mortymower

so if i want to dump wg, what is the best place to cut it, and the easiest method of sealing the main pipe back up. Also, how easy is it to go back to non dumped if i dont like it?

87944turbo

This is a considerable amount of work if you decide you don't like it. Where are you located? I am sure there is an event nearby or someone who would give you a ride so you could hear it for yourself first.