Builds 80 series where to start! Again.... (1 Viewer)

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Oh Bilt4me, it just kind of occurred to me that maybe you thought this was an exhaust merge collector? In that case you would want a much larger diameter tube on the outside of the merge.

But with this being a turbo collector you want some neck down for exhaust speed as that is what spins the turbine. So in this example, I have (6) exhaust runners that are 1.9" OD, and 1.682" ID, necking down to 2.75" for the turbo hot side and then the turbo housing then necks back up to 4" for the connection to the downpipe.



BILT4ME said:
Are there any concerns about the cross-sectional area of the (6) pipes coming in VS the (1) going out? Should the OUT be more than the IN? Or is there a back-pressure calculation I don't know about?
Click to expand...
 
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scottryana said:
I don't know about THE one, but the price is good, it's a fellow mudder and he says its rust free, and it has a good interior like I was looking for. Just need to make sure shipping from Oregon to Virginia isn't a deal breaker. Lol
Click to expand...

Hmm I *could* use the vacation :hmm: How much is gas and a plane ticket? :flipoff2:
 
scottryana said:
Oh Bilt4me, it just kind of occurred to me that maybe you thought this was an exhaust merge collector? In that case you would want a much larger diameter tube on the outside of the merge.

But with this being a turbo collector you want some neck down for exhaust speed as that is what spins the turbine. So in this example, I have (6) exhaust runners that are 1.9" OD, and 1.682" ID, necking down to 2.75" for the turbo hot side and then the turbo housing then necks back up to 4" for the connection to the downpipes.
Click to expand...

Yes, that's exactly what I was wondering. So, the header tubes come from the exhaust ports on the head, down to this turbo collector, across the turbo, then out through a 4" tube for the final exhaust? How far away from the head is this turbo collector? I understand the part about making the tubes equal length for pulsations, but how close will you have to jam this thing in next to the engine? Very creative fabrication and welding!

I wonder what type of tooling they used to machine that billet piece of SS for that collector. Looks like a line broach and a small mill head to follow the funky exterior pattern!
 
@NLXTACY Haha if I knew the truck a little better or it was my own truck I would probably take you up on that and save a few hundred dollars even if I had to put you up in the best Comfort Inns money could buy :flipoff2:

But I couldn't ask anyone to drive a truck across country sight unseen, with just the owners word that it is a good runner. lol.
 
@BILT4ME

Yes that is exactly right. You will have a new exhaust manifold flange, on that exhaust flange you will have mandrel bent schedule 10 stainless steel welding els, that will bend and snake their way to this turbo merge collector, the turbo will use a V-band flange to connect to the collector, then the gasses spin the turbine wheel and exit out the back of the housing to the downpipe.

If we go back a few pages you can see the stainless steel turbo housing. The opening on the left is what will sit on this flange, and the large opening will be what the downpipe bolts to also with a v-band flange.

image-jpg.1073373


The closer you can get the turbo to the engine the less the exhaust gasses have had a chance to cool. The more volume the exhaust gasses take up the quicker you can spool the turbo. SO we will try and tuck the turbo up fairly tight. It will occupy the space where the current exhaust manifold sits and extend out toward where the current air filter housing is, The air filter housing will not be reused.

Here are a couple examples of my buddy Marc's work
Rotary RX-7
null_zps6db734e6.jpg


null_zps3bb4fa89.jpg


DSM
02Qmofz.jpg

EZxJRgr.jpg
 
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scottryana said:
@NLXTACY Haha if I knew the truck a little better or it was my own truck I would probably take you up on that and save a few hundred dollars even if I had to put you up in the best Comfort Inns money could buy :flipoff2:

But I couldn't ask anyone to drive a truck across country sight unseen, with just the owners word that it is a good runner. lol.
Click to expand...

Obviously you don't know my pain threshhold :flipoff2:
https://forum.ih8mud.com/threads/new-to-the-fj60-world-come-share-my-pain.229660/

Edit:...and resiliency :p
 
scottryana said:
@BILT4ME

Yes that is exactly right. You will have a new exhaust manifold flange, on that exhaust flange you will have mandrel bent schedule 10 stainless steel welding els, that will bend and snake their way to this turbo merge collector, the turbo will use a V-band flange to connect to the collector, then the gasses spin the turbine wheel and exit out the back of the housing to the downpipe.

If we go back a few pages you can see the stainless steel turbo housing. The opening on the left is what will sit on this flange, and the large opening will be what the downpipe bolts to also with a v-band flange.

The closer you can get the turbo to the engine the less the exhaust gasses have had a chance to cool. The more volume the exhaust gasses take up the quicker you can spool the turbo. SO we will try and tuck the turbo up fairly tight. It will occupy the space where the current exhaust manifold sits and extend out toward where the current air filter housing is, The air filter housing will not be reused.

Here are a couple examples of my buddy Marc's work
Rotary RX-7
null_zps6db734e6.jpg


null_zps3bb4fa89.jpg


DSM
02Qmofz.jpg

EZxJRgr.jpg
Click to expand...

That's impressive!

I was thinking initially that you wanted to move it away from the head so it would run cooler, but now I realize why it's so close. Will you wrap the tubes to insulate and prevent heat loss? I couldn't see the other pics until I replied, so that was a bonus! This guy does awesome work for hand fitting every tube and TIG the welds. That is a work of art! Bead blast it when done for a uniform finish (or polish it for a chrome look!)

This is great Ryan! I'll keep following!
 
@BILT4ME Yes I will probably coat with swaintech or jet-hot or wrap with the same wrap I used on my current truck or maybe both. I really don't know yet. That is still kind of down in the weeds. I am still NOS tank shopping. lol.

1413758270980-jpg.955553
 
And it is a done deal! Truck will be getting shipped 2,973 miles. lol. If you are in the Richmond area and want an ARB bumper, for the cost of a new factory bumper and wings, let me know. Also looks like I will have a Thule rack, and receiver hitch if someone is interested :)

IMG_0489.JPG


IMG_0492.JPG
 
They will probably drive right through Iowa on their way to deliver it to you. I'll meet them at a truck stop for the bumper and rack. :)
 
Dude if it was at all cost effective to get you a road trip, pay for gas, hotel, food, a modest wage, and plane tickets I would totally do it. There is just no way it works out cheaper than shipping. Lol
 
scottryana said:
Dude if it was at all cost effective to get you a road trip, pay for gas, hotel, food, a modest wage, and plane tickets I would totally do it. There is just no way it works out cheaper than shipping. Lol
Click to expand...

Iowa is half way (approximately) so he doesn't need a hotel...
 
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