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Making a tube header for the turbo side

I vote for the turbo upgrade. Its gonna be many moons before someone builds another header, but lots of people have CKO's and would benefit from knowing what upgraded wheels will get them.
 
n8in8or said:
I tried ordering from BAE and I've had no response from them in over a week! Phone calls go to an answering service and they haven't responded to emails. So I did more searching and found Turbo Lab. They had some decent reviews and they sell on Amazon. I love buying through Amazon so I pulled the trigger. I ordered the stuff Wednesday night and I am supposed to have it tomorrow.
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Turbo Lab does the machining and install of their parts too.

That Super 40 turbine wheel will slow the spool ever so slightly and reduce any lag too because of it's lighter weight too it will have much less back-pressure up top add to this higher rpm operation too shove them extra lbs of air into that 6.5 for great results IMO.
 
FellowTraveler said:
Turbo Lab does the machining and install of their parts too.

That Super 40 turbine wheel will slow the spool ever so slightly and reduce any lag too because of it's lighter weight too it will have much less back-pressure up top add to this higher rpm operation too shove them extra lbs of air into that 6.5 for great results IMO.
Click to expand...
My hope is that the turbine wheel will lower EGTs by reducing restriction in the exhaust system. The downside of that will be slower spool time I'm afraid.

The billet compressor wheel will hopefully counteract that slower spool slightly due to it's lower weight. Then once it is spooled it should shove more air into the engine due to it's improved design over my current 8 blade wheel.

All of this is to prepare for the extra fuel I'll be putting in the engine once I have the Omega Moose injection pump installed.

I am hoping that the header will further reduce exhaust restriction which will further reduce EGTs and do so without hurting spool. Who knows, it may even help spool. At the very least, I hope to take some exhaust "load" off the #5&7 cylinders by them not having to deal with the exhaust gases coming from the other side of the engine.

Those 3 things, combined with finally bumping my boost pressure up past the current 17psi, I'm hoping give me enough extra airflow to deal with the additional fuel the Omega Moose pump will be giving me....which could be as much as 50% more fuel, but we'll see what actual results are.

It should be a fun next couple of months!

If it all holds together, I intend to take it to the dragstrip to see what the combo of parts will do in real numbers.
 
n8in8or said:
My hope is that the turbine wheel will lower EGTs by reducing restriction in the exhaust system. The downside of that will be slower spool time I'm afraid.

The billet compressor wheel will hopefully counteract that slower spool slightly due to it's lower weight. Then once it is spooled it should shove more air into the engine due to it's improved design over my current 8 blade wheel.

All of this is to prepare for the extra fuel I'll be putting in the engine once I have the Omega Moose injection pump installed.

I am hoping that the header will further reduce exhaust restriction which will further reduce EGTs and do so without hurting spool. Who knows, it may even help spool. At the very least, I hope to take some exhaust "load" off the #5&7 cylinders by them not having to deal with the exhaust gases coming from the other side of the engine.

Those 3 things, combined with finally bumping my boost pressure up past the current 17psi, I'm hoping give me enough extra airflow to deal with the additional fuel the Omega Moose pump will be giving me....which could be as much as 50% more fuel, but we'll see what actual results are.

It should be a fun next couple of months!

If it all holds together, I intend to take it to the dragstrip to see what the combo of parts will do in real numbers.
Click to expand...
Nice, I've done a few runs to just under 3.0 pressure ratio.
 
Do you notice an improvement in performance the whole way up the pressure scale, or does it plateau after a certain pressure?
 
n8in8or said:
Do you notice an improvement in performance the whole way up the pressure scale, or does it plateau after a certain pressure?
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2.6/2.7 pressure ratio appears to be plateau I suspect the 3" down-pipe is the issue until I can get the 4" done and measure drive/back pressure, with big air it needs more fuel.
 
Yeah I was wondering how much affect the extra boost would have without a significant increase in the amount of fuel.
 
n8in8or said:
Yeah I was wondering how much affect the extra boost would have without a significant increase in the amount of fuel.
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I'm getting mixed feelings about which way I want to go w/turbo? Considering a real Holset HX Super 40 if I can't get more info from vendor of our turbos as you know there is a difference between ours even tough the part # are same. Their offering has changed and they have another turbo billed as the replacement for the Super40 and having a different part #.

Then there is the idea of compound turbos big air a low boost which would help keep things together longer not that I'm looking for a racer my other want is the biggest CAC/IC I can fit to increase air density.
 
It fits!!! Well mostly. It's touching the heater hose now, but I can see how to make a slight adjustment to the header so it will clear that and still have room for everything else. I'm stopping for tonight but will pick up tomorrow with the header mod. I'm almost there!!

Oh and I think I will have to mod the drain tube a bit but will know more once the turbo is mounted. That shouldn't be a huge hurdle to overcome.

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Success!! By cutting out the existing bend and breaking it into two bends I was able to gain about 3/4" of clearance right where I needed it. So tonight the fab work is truly done and I got a coat of paint on it. Tomorrow night I will wrap it and put final paint on it. Then Saturday should be installation and oil drain rework.

Yes it's still kind of close to the heater hose so to handle that I'm going to put an extra layer (or maybe even two) of heatshield on the hose. Plus with the wrap on the header I should be ok.

More tomorrow!
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Here is today's progress so far. Since the original heat shield no longer fit I made a heat shield out of Tunnel Shield to keep heat off the fuel system. The header is installed. It's a bit tougher to do the bolts now but hopefully I don't have to mess with them too often. And then I had to extend the front and back glow plug wires. The rear was extended about 10" and the front about 14". The wires will be tied up so they aren't touching the header once everything is in place. I'm stopping for lunch now but soon I will be installing the down pipe and turbo.
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