Did you add straight pipe to the Y right before the TBs for the MAFs? We were talking about trying that last night and using the Stillen Y but I need to go look at the car and see if there is any room.

Im dropping my car off with sasha one of these days, Hes going to try to remake that pipe and see what we can do!

Making it bigger or splitting into two?

Were going to try to split in 2!

That flow orifice isn't likely to help much if you are y-ing off it after. You are just going to recreate turbulence at the y. Hopefully I'm wrong.

I tried. There isn't a lot of room. It can be done but it will take a 90* bend right after the maf into the tb for the rear tb and then the front tb would almost need a cobra head which is even worse. But it "could" work.

I figure that it will at least introduce straight air to begin with before hitting the Y versus having the extra turbulent air from the IC and bends up to that point coming in all toilet bowl flushey. Either way, it can only help and not hinder.

This is how I had set it up:

http://i137.photobucket.com/albums/q...pshjqxpror.jpg

I am disappointed and surprised that it did not work out as I had anticipated. The Sensors are in a 3" pipe, and the sensor bungs are extra tall. I guess having them in one pipe is the big issue here.

I am thinking that if these tall sensor bungs are used in 2.75" tubing, they should be good for 550whp or so wit these tall MAF sensor bungs, as this was good to about 550whp on the turbo kit with low profile MAF sensor bungs.

Ideally, I will try to do it with 3" pipes, but it will be extremely tough since the room to make a Y pipe is at a premium. May have to use some tighter radius cast pieces...we'll see when the car comes back I guess.

One way or another, I will make it work.

If you could squeeze a 4" pipe where you mount the MAFs it'll give you slightly more area than two 2.75" tubes.

Its a 3 " section right now.

I think it would have to be a 5" atleast.

True. The comparison I was making was the flow area of two 2.75" intake tubes against one single. As Sasha mentioned you can get up to 550 whp in a turbo setup with two 2.75" tubes. Doing the math a 4" gives you more area than two 2.75". Going with a 5" would give you almost 40% additional flow area over the 2.75"s.

Is there any way to make a spacer for the MAF Sensors to pull them out of the airflow a little further?

Also, the HR Stillen kit used a different style intake without a Y. If I had to guess I'd say it was around 4". It shouldn't be too hard to fit a 4" section in place of Evo's current 3".
http://i1182.photobucket.com/albums/...21283.png.jpeg

Maybe this would work? I dunno.. its hard to say

Either way, I know this kit will produce big power. I put down more TQ and 25 less WHP then last year. this was only at 6 psi and reving up to 5000rpm.
I don't know if this is kit design that gave me more TQ or the boost coming on at a lower RPM. either way, this kit will be unreal once we get over the hurdle.

Here is a better view.

http://cncautodesign.com/wp-content/...5/DSC_2857.jpg

Stillen Air to Air setup
 

That's a big pipe, I'm not sure there is room for it. Maybe if it was short.


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