^ Is the extractor a properly tuned length one or just some shitty cap ayam one you bought for 300 ringgit?

Never heard of it.

As i always say, if a tuned extractor usually costs 1500 ringgit and you get one for 300, something must be wrong.

Make sure there are no restrictions in the system, minimum bends and kinks, nothing is loose or bent and above all a good system for smooth flow.

New intake toy arrived. IC and piping coming soon!

Cossie sounds cooler.

Plus they had everything in an easy to install kit.

As for the FMIC, I prefer cast end tanks rather than welded.

Yeap, the Cosworth one does come with a heatshield with a slot to use the old snorkel as well. The kit also comes with rubber seals, so the heat shield box seals against the bonnet.

That's arriving in a few days. Shouldn't throw it off too much. Either way I have both a Tractix OpenPort and Cobb Tuning Accessport. That'll fix any issues.

People tend to work on the intake and exhaust in batches. I prefer to do each section. After the IC, I'm considering getting a balanced intake manifold.

It really depends on the exact configuration. 4 tip quads might be nothing but a cosmetic feature.

You'll have to describe the system as a whole, extractors, cat, piping, piping diameter, resonators, mufflers.....the whole hog. I'm finding it quite hard to imagine any quad setup.

Just got this in the mail.



Full Race Motorsport TIG robot welded goodness in Twin Scroll config. Tomorrow it leaves for ceramic plasma coating, honing and if I get enough money, a Magnaflux check. To be mated to a Garrett GTX3076R.

I am very interested in this "spiral bullet" that people keep talking about here.

Can someone post a picture here?

What is it for? What is it supposed to do?

Thanks for the pics!

Flow and CFD happen to be one of things I do for a living, that's why I'm quite interested in how it works, although my skill level is borderline retarded.

Given the Reynolds number of typical exhaust gas (composition tikamed with AGA-8) and the bend factor, I'm not sure how it would increase velocity via the swirl. I guess the velocity would increase from the restriction but the swirl would create more turbulence, sapping it of kinetic energy. But I guess I'm not qualified enough to give a final answer, given the shape of the thing.

Just dreaming of a good exhaust after my friends at CEEFC threw around the idea of a few of us quitting our jobs and building high performance Inconel manifolds and titanium exhausts.

The best way to create backpressure for a system without turbulence or disturbing the pulse or lamellar flow is with a venturi type of restriction. Preferably cast or machined rather than rough welded.

This post has been edited by empire23: Aug 7 2012, 08:10 PM

1.1849 vs 1.2260 rho temperature gradient (24 celsius vs 15) equates to a 3 percent boost based of air density alone in a perfect world where a car is well tuned.

To test for backpressure restriction, I don't think an R34 with a NEO6 is going to push the flow restriction limits of an open pod filter. You'd need something a lot beefier.

Naw, that's an RB25DET with a NEO head and a small T25 flange turbo, not an RB26. It won't flow really hard. I still own one of these bastids haha!

Plus my experience from the RB25DET is that without a tunable ECU like an Apexi PowerFC and a decent turbo, it's pretty hard to max out airflow as the stock ceramic turbo is shit.