Extrude honing intake

[yellowfever#154]

We are still in testing and nothing is solid at this point, but I will say that when they are available DC Performance will be selling them on here. Expect pricing to be in the ~$1000-1200 range without core.



We have gone head to head with EH or even CNC porting and always come out on top. The latest victory was one of our SRT-8 intakes that added +10whp on top of a CNC'd version from Indy (ours netted +35whp over an unmodified manifold). This was on a mild build putting out ~600whp after the intake work.

We do our best to ensure that our products and services are nothing less than the best you can get. :rock:

What we are finding though, is that even with all the fancy EH'ing or portwork one can do with the manifold, it's a good design (at least the genIII manifolds as in our test) and unless you are pushing well beyond the stock power levels, there isn't much power to be picked up from the work. Now take a 900whp version with more CFM demands and I would bet you would see a +30-40whp difference instead of the 10 we see on a relatively stock motor. :dontknow:

I am a little more interested in this option now, when will the pricing be determined and manifolds available for purchase? I am waiting for quoting from DC for a shortblock and maybe will consider this from them as well.

 

[FSTJACK]

Extrude honing is the best way to go with a gen 3 Viper manifold, in my opinion.

I have had it done to the red truck manifold. I was so impressed with the results I cannot tell you guys.

The port match is perfect when you get it back if you send them a template of your intake ports (a simple heavy paper tracing is all they need).

They also require the flow numbers on your heads as they flow each runner to 10 CFM over what each intake port flows. This guarantees that you will have even flow on all the ports. The before and after is just startling, the manifold stock is not very even in flow after seeing what was done to equalize the flow.

There was a just an indescribable differance in the way the ports looked when I got it back.

You cannot duplicate what they do with hand porting. To come close you would have to saw the top of the manifold off to get to some of the areas of the manifold that are reworked in the Extrude hone process. I originally was going to do this and I talked to the Extrude folks at SEMA last year and saw some examples of what they can do. I was just awed at the results that I got with the Extrude Hone process. I do not know about all the Extrude Hone locations across the country but I used the same shop that Tony uses.

The great thing about Extrude Honing is where they can remove the material, and how they can reshape/reconfigure the manifold runners. This especially evident in where the runner transitions into the plenum at the top of the manifold.
I do not know how they do it, but they can direct where and how much material is removed inside the manifold.

I wish I had weighed the manifold before I sent it to Extrude Hone, as it came back to me much lighter. The amount of material that was removed was huge, as in pounds.

You will get a product that really works as it should, with the Extrude hone process.