R34 Gtt Exhaust Options

[scotty nm35]

Psssh, I have two of them!

How does that system actually work? Because looking at it, I actually thought it was a better (i.e, far easier to hide) system than Scotty's "external gate on housing" setup.

Then again, why not just simply make the dump diameter that size?

This isn't an external gate, it's a crappy exhaust bleed off gate.

If your exhaust is building that much pressure then it's simply not flowing enough, and as I would explain to a customer, 3 inch is too small for 400kw. I guess if you researched a little Tao you would have known that, but hey perhaps the carbon monoxide is doing it's job.

How are your steering rack boots?

[Kinkstaah]

Yes, but an exhaust bleed off gate and an external wastegate/screamer really has the same effect ultimately, which is to reduce pressure in the dump/immediately after the turbo.

This seeeeems like it's easier to hide, easier to setup, etc. Then again, maybe the answer is to run a comically large dump pipe. 3in into 6in on a 45 regree angle anyone?

Would have been nice to see how well my setup actually ran, if it would you know, actually run.

[Ben C34]

Tao, how about instead of a weird spring flap thing, you put an external gate on it. Yeah. An internal gate turbo, then your weird dump then an external gate on the dump. Gate city.

Use boost applied to bottom port to open the extra external gate. Then can have a solenoid to keep it shut if you want to boost past an rbt or heaps cops.

I might just patent that idea.

More gates equals more better.

[gtr jet]

[hypergear]

Haha. I thought about it. The bleeder vale was a much cheaper alternative, and hides better.

[sneakey pete]

wouldn't getting a 3.5" exhaust achieve the same goal?

[hypergear]

Yes, it would, I think Xfoce makes them. They are much louder.

[GTSBoy]

They are much louder.

Except when that flap is open!!!!

Has the spring lost its tension from the heat yet?

[hypergear]

They working fine so far. Car had had 5 dyno hours since as well.

[GTSBoy]

Colour me surprised.

[Kinks]

Get a JJR bellmouth dump pipe and venom high flow cat

Dump pipes / cats make no different to the noise, only flow. I have the above on the standard catback and it is as quiet as a mouse.

Get a custom catback exhaust made up. DO NOT SKIMP on the catback. My cheap catback is deafening at 2000 RPM which is where a street car spends 90% of its time. It's quieter when you are at 3000+, which is the opposite of what it should be. I went back to the standard catback and the shit exhaust is currently in my garage waiting for me to figure out how to get rid of it (probably to scrap metal recycler).