Thread: Turbo Manifold Sneak Peak! READY TO PRODUCE!

Will it fit on a B13?

Saludos,

It will fit b13, b14, b15, p10, p11. If it has an sr20, it will fit.

Thanks!

The price seems very fair considering this manifold is much better than a log, slightly better than a unequal tubular manifold but not better than a "true" equal length manifold. Did that make sense?

Take these comments as constructive critizism. The standard firing order of 4 cylinder is 1-3-4-2. Pulses should enter the collector as close as possible to the next pulse and with as little angle as possible to maximize the scavenging effect. So basically, you want them to enter the collector in a circle instead of one directly across from the next.

Food for thought.

Manny it is not the same for boost. Firing order is critical on NA not turbo. That consept is out the door on turbo that you posted above.

Subscribed..........I'm liking this. 3" DP will be an option with the manny?

Yes a 3in DP will be available with the mani.....We are just getting the wastegate set right now.....We are busy at are shop but we're working on it as fast as possible to get you guys some better ideas about the final product....Thanks Miko for clarifying the above comment on the how the NA and turbo mani's work differently when working with a turbo application.....There's so much pressure its not going to matter. Even if each runner was an inch different in length it really would not matter for flow, especially with a street application, but this mani is 99.99% EQL....

did u back purge when welding

On mine no......for the production model, we will absolutely back purge. I know the importance of it, and we just did not do it for mine....So have no worries cause if we do decide to start producing we will.

Dre, I will respectfully disagree.

Both setups require you to get rid of the exhaust as efficiently as possible.

"The basic idea behind keeping each exhaust pulse separate to the collector is to control and minimize the turbulence created when the exhaust pulses merge. Uncontrolled turbulence equals lost energy, as the exhaust gas pulses lose their direction and cannot deliver their ful punch to the turbine. With a design that creates turbulence in side the manifold, energy is wasted, creatingheat instead of spinning the turbine."

In Lehman's terms, you are creating a free flowing exhaust path for the engine to breath.

It is like comparing a boxer to a punching bag, sort-to-speak. A boxer will punch the bag left, right, left, right, left, right, etc. one right after the other. If a boxer were to punch the bag at the same time left & right, left & right, left & right, etc. it wouldn't be as efficient. He's losing time "spooling" his punches in between.

I can do the same and compare it with traffic. I rather travel thru free-flowing traffic than ride bumper to bumper. If I have to ride bumper to bumper, I am going to look for another way around (aka turbulance).

Log to tubular to equal length, as you go up the latter, you are decreasing the amount of pressure between each of those manifolds. The more pressure you have, the more reversion is likely to happen. It is only natural for a gas to find the easiest way out.

Catch my drift?

Question:

Can you tell me why reputable turbo manifold makers (in terms of equal length), all design their manifolds to fire in a circular motion inside the collector (i.e. Protech)?

Good read:
http://www.awe-tuning.com/media/pdf/2.7T_header_comparison.pdf