Stock .84 Housing Modification

JAP · Apr 7, 2012

Could a mod change the title? It was supposed to say *Stock

Just wanted to share these pictures. It's rough and I need to clean up the wastegate hole.

I don't have any numbers or impressions from this, but it seems like there's no way that it couldn't help. I think it'll be a great mod to do for the guys that are running the batmowheels and trying to make the stock turbo live with extra fuel.

JAP · Apr 9, 2012

Would a how-to be better? LOL

JAP · Apr 10, 2012

Wow... Are there any stockish 7.3 owners anymore?

powerstrokenstang · Apr 10, 2012

Did you open the hole up any or just drill through to the other side?

JAP · Apr 10, 2012

I opened up the flapper hole a little, but I needed some bigger drill bits. I'm going to bring it to work and clean it up and drill the hole a little larger.

PStroked444 · Apr 10, 2012

I guess the question would be did it make any difference?? How much of an improvement did it make? any dyno? Just asking I am not passing judgement. I have wanted to do that a while back to help relieve some BP on the top end with the stock housing.

Thanks....

JAP · Apr 10, 2012

You should do it! I have a TN Knock-off now that seems to work great, so I'm not all that anxious to try this stuff... That being said, I may just swap it on to give everyone my impression. I know that I do miss the response of my stock turbo.

It's definitely going to make an improvement for those running larger than stock injectors and even really aggressive tuning... I think that is a no-brainer...

The pressure difference between the passenger and driver sides of the motor has got to be pretty extreme once the wastegate does start opening.

907DAVE · Apr 11, 2012

Might give this a try when I swap motors between trucks, but my stocker seems to be working pretty so far.

PStroked444 · Apr 11, 2012

If I was not using my truck every day I think I might try it. But who knows. Keep me posted if you actualy get the chance to do the .84 mod. Good luck!!:gun::rockon:

dietoremain · Apr 11, 2012

Hmmm... I have a 1.0 so ehh. lol

JAP · Apr 12, 2012

I was able to open it up all a little more at work yesterday...

Took a drill press and drilled the divider some more, and then cleaned it up and "sharpened" it a little...

Then I opened up the wastegate hole to 7/8's... That's as large as you can go without the flapper getting in the way... Mine got a little scarred but I cleaned it up and it's fine...

Then I ported the hole with my Dremel and made it taper up to the flapper.

And there is the backside of the hole...

RedSmokey · Apr 12, 2012

Might do this for chits and giggles till I throw the van turbo on. I would guess my wastegate is open probably more than 50% of the time i'm driving LOL

JAP · Apr 12, 2012

I honestly think that this will make for a better turbo than a 1.0 housing stock turbo... But that's just me. Once I get it on I'll know. But to me, it seems like I can have the best of both worlds... Neck-snapping spool-up as well as good top end, and that will be achieved by adjusting my wastegate spring tension and using either a boost or backpressure referance to open the actuator.

dietoremain · Apr 12, 2012

Let us know how it drives I'm quite curious myself!!

JAP · Apr 12, 2012

I'm going to install it as soon as I find my stock intake.

PStroked444 · Apr 14, 2012

Looks good! Keep us posted.

Groomzybanshee · Apr 14, 2012

Jap what part if the intake you need I have a few pm me if you needa barrow it.

JAP · Apr 16, 2012

I think I should have one laying around, but I'll keep you in mind! Thanks! I only need the little piece that goes from the turbo inlet to the CCV piece.

PStroked444 · Apr 23, 2012

Sooooo......

oke: Hows it going..?

Homesteader · Apr 24, 2012

JAP said:
I was able to open it up all a little more at work yesterday...

Took a drill press and drilled the divider some more, and then cleaned it up and "sharpened" it a little...

Then I opened up the wastegate hole to 7/8's... That's as large as you can go without the flapper getting in the way... Mine got a little scarred but I cleaned it up and it's fine...

Then I ported the hole with my Dremel and made it taper up to the flapper.

And there is the backside of the hole...