Has any aftermarket EVO tuner ever designed and developed an inconel turbo manifold for the EVO VIII?

Correct me if i am wrong, but i think this would be a great idea. I know APR includes and inconel manifold on their Stage III 1.8T kits, proving them to be #1 in reliability and bolt on performance. Check it out at :

http://www.goapr.com/VW/products/stage3_trans.html

Wont an inconel manifold retain heat much better than SS or cast iron as well as produce maximum reliability and power output as a result of this? Someone should give it a try and contact some CAD engineers to develop a twin-scroll design for the factory 16G and maybe even have APR create a custom manifold for testing or something..

 

That would be great. Good idea!

 

w00t,

I've got that mani in my car as we speak

 

The mnanufacturing costs are likely well beyond the means of most suppliers you'll find...and the market is definately not large enough.

Given that the stock manifold is already cast iron, thats as good as it gets for use with a stock turbo.

 

But Inconel would be sooooo nice... You know me, Adam.

 

yeah, i would definitely consider getting an inconel manifold, i hear they are SUPER nice... hopefully someone will make one some day for the Evo.

 

APR makes some really nice kits.. But they are definitely not "1 in bolt on performance"... Example.. Ive got X in my 225 TTcoupe and had no problems keeping up with my friends APR chipped S4 from 60-120.. Once he popped in the X chip in his S4 I got smoked... So I gotta disagree with #1 in performance.. I am hunting down some APR TTs but they are rare..

As far as Inconel goes, what kind of difference are we talking about? Has APR or anyone ever did a comparison between an inconel manifold, and a cast iron to prove that they make a significant difference?

 

I thought that this was how the Buschur manifold is being made? Someone out there will know if this is so or not, but I thought thats what I had read.

 

Buschurs is not twin scroll and is made to fit turbos that spin in the oposite direction. I think.

 

The McLaren F1's entire exhaust system is made of inconel...

 

In theory...
inconel is one of the best materials to use for exhaust manifolds. F1 cars use it for their headers.

Heat retainment has and effect on the pressure of exhaust gas in the manifold (ideal gas law or PV=NrT)
It effectively offers more torque on the turbine wheel and more rotational inertia.

IMO it works, and is worth it
Inconel also offer significant corrosion resistance similar to, or exceeding stainless steel (depending on the grade)

aaron

 

I don't believe he's talking about simple software here. As far as APR's stock programming, they are on the conservative side. That said, the programming for the stage 3 1.8T kits is pretty aggressive and the cars, especially the DBW ones, are running really well with great times at the track. The DBW T28 kits powered by GIAC software, on the otherhand, are grenading on the streets in less than a handfull of a thousand miles. Anyway, I'm not here to discuss VAG tuner camps as we've all been down that road Props to both companies I say

 

once again some great reading on exhausts Burns

it is true that a lot of F1 teams use it for their exhausts. i did a 20G that had a HUGE turbo for a aircraft setup. the motor made well over 850 HP and the EGT's were over 2000!!

i was working on a composite exhaust header for a team years ago. it was carbon/carbon and could withstand 2400F

Tom

 

Dammit - that Inconel manifold is something worth paying for... You can keep the SS manifolds and the stock one... Damn, I wish I didn't have an exotic material fetish (CF this, titanium that, Inconel the other).

 

Just curious how well did it retain heat?

aaron