Ever seen one?
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Elder User
Joined: Feb 2010
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I like how it's off to one side of the engine so I'm going to keep it like that..I'm planning on getting a new turbo (ats if it will fit) making my own cold air intake and an inter cooler if I can fit all the tubing....I'll have to get a boost gauge once it's running and see but I think with a knew turbo and a inter cooler this hoop up should work really well.
Btw the name of the turbo that's on it right now is a roto master.
Btw the name of the turbo that's on it right now is a roto master.
Last edited by mabc926; Apr 27, 2010 at 08:59 PM. Reason: Note
Lead Driver
Joined: Dec 2006
Posts: 6,496
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From: So. Jersey
Here's a similiar design.
This showed up on O.B. Here's a link to more pics. Google Image Result for http://alpha.cognitronics-tech.com/kirby/truck/truck_081.jpg
So to answer your question, YES.
This showed up on O.B. Here's a link to more pics. Google Image Result for http://alpha.cognitronics-tech.com/kirby/truck/truck_081.jpg
So to answer your question, YES.
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 15
From: Nutter Fort, WV
The last guy that posted up pictures like that had a terrible time trying to get any boost out of it.
From his descriptions, I think he had an exhaust leak where the cross over hooks to the manifold in your picture.
From my searches, Rajay is no more, they used to make airplane turbo's and turbo's for some English sports cars.
From his descriptions, I think he had an exhaust leak where the cross over hooks to the manifold in your picture.
From my searches, Rajay is no more, they used to make airplane turbo's and turbo's for some English sports cars.
Postmaster
Joined: Apr 2008
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Dave, the low boost is from manifold designs like the one on the engine hanging from a hoist - you'll notice that in that setup the exhaust from the passenger side has to blow through nearly the full length of the driver side manifold (where it naturally fights the exhaust flow from the driver side head) before it reaches the turbo. In the first post of this thread, however, the crossover flow comes right into the middle of the manifold, and from there blows directly up into the turbo, the manifold itself is also ballooned in that area to accommodate the doubled exhaust flow - this should work decent, and someone on OBN said that's actually what the GM manifolds look like, only with the turbo on the passenger side.
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Lead Driver
Joined: Nov 2003
Posts: 6,900
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From: Campbell River, B.C.
Holy crap, you're right.
Now we have 2 confirmed versions of the side mount turbo package on the IDI. I still think a setup with parts from some older kits like this could be used to make a nice twin turbo setup. To date that is something I still have yet to see on an IDI
Although I guess if some one was really determined, they could just make the manifolds from scratch. A laser cut 1/2" steel plate for the flange and some elbows should do the trick (and about a month of fabrication time
).
I'd still want to see it though.
Now we have 2 confirmed versions of the side mount turbo package on the IDI. I still think a setup with parts from some older kits like this could be used to make a nice twin turbo setup. To date that is something I still have yet to see on an IDI
Although I guess if some one was really determined, they could just make the manifolds from scratch. A laser cut 1/2" steel plate for the flange and some elbows should do the trick (and about a month of fabrication time
).I'd still want to see it though.
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Elder User
Joined: Mar 2008
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From: Marianna, Florida USA
I just went out and looked at my exhaust manifolds. If you look at the picture of the manifold in the first post, you will notice that the gases are turn down then up into the attached fitting. The drivers side manifold on my 93 has the gases routed up out the head. Making it a much better candidate to start with than the one shown. Just thought it was interesting.
Postmaster
Joined: Apr 2008
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No they don't - they go out and then straight up. It's just the exhaust ports of these engines are huge, making for an optical illusion in that picture.
Elder User
Joined: Mar 2008
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From: Marianna, Florida USA
I got turned around. I didn't recognize the tube as the crossover pipe. I guess the flow is better than I originally thought. It would be interesting to know what manifold they started with. 
Did you look at the one in post#5 from Crewdually?
Did you look at the one in post#5 from Crewdually?
Post Fiend
Joined: Nov 2003
Posts: 21,285
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From: Nutter Fort, WV
I can't remember who that was, about two years ago.
It was not just low boost, I meant any boost at all.
He was in the forum for several days, never did get the boost gauge to move.
I can't remember for sure any more, but as I think I remember, the manifold was slightly different than either of the pictures.
If I am remembering right it had a box looking deal above the manifold for the turbo to mount on and another one below the manifold that the cross over went into.
I may have saved those pictures on my other computer.
I will try to look in the next couple days.
It was not just low boost, I meant any boost at all.
He was in the forum for several days, never did get the boost gauge to move.
I can't remember for sure any more, but as I think I remember, the manifold was slightly different than either of the pictures.
If I am remembering right it had a box looking deal above the manifold for the turbo to mount on and another one below the manifold that the cross over went into.
I may have saved those pictures on my other computer.
I will try to look in the next couple days.
Post Fiend
Joined: Jan 2000
Posts: 5,330
Likes: 17
From: Dryden, ON, Canada
LCAM, I take it you've never seen the abortion that is a 6.5 turbo manifold...
It's upside down in the pic, but, it's still far from a pretty piece...
6.2 6.5 GM CHEVY TURBO DIESEL NEW EXHAUST MANIFOLD RH : eBay Motors (item 250611337531 end time May-07-10 11:44:51 PDT)
It's upside down in the pic, but, it's still far from a pretty piece...
6.2 6.5 GM CHEVY TURBO DIESEL NEW EXHAUST MANIFOLD RH : eBay Motors (item 250611337531 end time May-07-10 11:44:51 PDT)
Lead Driver
Joined: Nov 2003
Posts: 6,900
Likes: 3
From: Campbell River, B.C.
Funny thing is you can actually get some decent boost out of a stock 6.5 turbo simply with a wastegate tweak. Or at least thats what I've heard. Our 6.5 has remained bone stock and will probably stay that way until the bottom end falls off or my dad gets tired of it. Whichever comes first.
My Dad's 93' truck has the exact same manifold. I seem to remember at one point in it, you have a total of 6 cylinders trying to crap through an opening that is about 1" square. Been a while since I did that head gasket job though so memory is a little sketchy. It seems like a pretty constipated setup but generally runs ok anyway.
If I had the time, I would still love the chance to try and mess around with those side mount turbo kits. I wish there were more of them still running around so we could get some more feedback on how they really perform. Based on what I read so far, the ones we've seen seem to perform poorly because of boost loss issues and not necessarily because of the actually system design.
My Dad's 93' truck has the exact same manifold. I seem to remember at one point in it, you have a total of 6 cylinders trying to crap through an opening that is about 1" square. Been a while since I did that head gasket job though so memory is a little sketchy. It seems like a pretty constipated setup but generally runs ok anyway.
If I had the time, I would still love the chance to try and mess around with those side mount turbo kits. I wish there were more of them still running around so we could get some more feedback on how they really perform. Based on what I read so far, the ones we've seen seem to perform poorly because of boost loss issues and not necessarily because of the actually system design.
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