Single turbo
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Joined: Apr 2018
Posts: 65
Likes: 3
Thread Starter
Safety Car
Joined: May 2006
Posts: 4,290
Likes: 140
From: Salem NH
I made a few different turbo manifolds a few different ways. The ones that were the most rigid was based on a set of cast iron Fbody LT1 manifolds, ran backwards. I used some cast weld-el's (from a plumbing supply, think steam fitter) to a T4 flange. Then gusseted some 1/4" plate in a few spots and a standoff to the head. Was very strong!
-- Joe
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Joined: Aug 2016
Posts: 99
Likes: 10
From: Denver CO
looks pretty good!! Just got these manifolds for next winters project.
It looks a little tight but seems you got it in there pretty well and under the stock hood.
Thanks for the pictures I could tell the turbo would sit too high but couldn't tell by how much, so seems like you cut about 3" as you said.
can I ask what size turbo is that in the pictures and did you have any issues with the crossover pipe and the oil pan? thanks
It looks a little tight but seems you got it in there pretty well and under the stock hood.
Thanks for the pictures I could tell the turbo would sit too high but couldn't tell by how much, so seems like you cut about 3" as you said.
can I ask what size turbo is that in the pictures and did you have any issues with the crossover pipe and the oil pan? thanks
Advanced
Joined: Apr 2018
Posts: 65
Likes: 3
looks pretty good!! Just got these manifolds for next winters project.
It looks a little tight but seems you got it in there pretty well and under the stock hood.
Thanks for the pictures I could tell the turbo would sit too high but couldn't tell by how much, so seems like you cut about 3" as you said.
can I ask what size turbo is that in the pictures and did you have any issues with the crossover pipe and the oil pan? thanks
It looks a little tight but seems you got it in there pretty well and under the stock hood.
Thanks for the pictures I could tell the turbo would sit too high but couldn't tell by how much, so seems like you cut about 3" as you said.
can I ask what size turbo is that in the pictures and did you have any issues with the crossover pipe and the oil pan? thanks
It was sitting pretty high but got the stainless manifolds for reasonable price..
Had to cut it down & move waste gate to lower side because it was in the way of downpipe
Advanced
Joined: Apr 2018
Posts: 65
Likes: 3
looks pretty good!! Just got these manifolds for next winters project.
It looks a little tight but seems you got it in there pretty well and under the stock hood.
Thanks for the pictures I could tell the turbo would sit too high but couldn't tell by how much, so seems like you cut about 3" as you said.
can I ask what size turbo is that in the pictures and did you have any issues with the crossover pipe and the oil pan? thanks
It looks a little tight but seems you got it in there pretty well and under the stock hood.
Thanks for the pictures I could tell the turbo would sit too high but couldn't tell by how much, so seems like you cut about 3" as you said.
can I ask what size turbo is that in the pictures and did you have any issues with the crossover pipe and the oil pan? thanks
Crossover pipe fit fine it was my z bar that I had to modify and run shorter spark plugs
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Joined: Aug 2016
Posts: 99
Likes: 10
From: Denver CO
thanks for the extra pics, yeah that looks too tall in the before picture.
I think that turbo will be a little small but looks like there is a little more space for a bigger turbo.
I won't have the Z bar as I am going hydraulic so hopefully that wont be an issue on mine.
Not sure what the piston is going to do, does that fit onto the distributor somehow?
I am going to go with something electronic as I figure the timing being off will be the easiest way to trash the engine. MSD makes a boost timing unit, but I think I am going to reuse one of my spare standalones and run fuel injection with some ls coils so I can dial it in.
I think that turbo will be a little small but looks like there is a little more space for a bigger turbo.
I won't have the Z bar as I am going hydraulic so hopefully that wont be an issue on mine.
Not sure what the piston is going to do, does that fit onto the distributor somehow?
I am going to go with something electronic as I figure the timing being off will be the easiest way to trash the engine. MSD makes a boost timing unit, but I think I am going to reuse one of my spare standalones and run fuel injection with some ls coils so I can dial it in.
Advanced
Joined: Apr 2018
Posts: 65
Likes: 3
thanks for the extra pics, yeah that looks too tall in the before picture.
I think that turbo will be a little small but looks like there is a little more space for a bigger turbo.
I won't have the Z bar as I am going hydraulic so hopefully that wont be an issue on mine.
Not sure what the piston is going to do, does that fit onto the distributor somehow?
I am going to go with something electronic as I figure the timing being off will be the easiest way to trash the engine. MSD makes a boost timing unit, but I think I am going to reuse one of my spare standalones and run fuel injection with some ls coils so I can dial it in.
I think that turbo will be a little small but looks like there is a little more space for a bigger turbo.
I won't have the Z bar as I am going hydraulic so hopefully that wont be an issue on mine.
Not sure what the piston is going to do, does that fit onto the distributor somehow?
I am going to go with something electronic as I figure the timing being off will be the easiest way to trash the engine. MSD makes a boost timing unit, but I think I am going to reuse one of my spare standalones and run fuel injection with some ls coils so I can dial it in.
The piston will just back off timing as boost rolls in
Advanced
Joined: Apr 2018
Posts: 65
Likes: 3
thanks for the extra pics, yeah that looks too tall in the before picture.
I think that turbo will be a little small but looks like there is a little more space for a bigger turbo.
I won't have the Z bar as I am going hydraulic so hopefully that wont be an issue on mine.
Not sure what the piston is going to do, does that fit onto the distributor somehow?
I am going to go with something electronic as I figure the timing being off will be the easiest way to trash the engine. MSD makes a boost timing unit, but I think I am going to reuse one of my spare standalones and run fuel injection with some ls coils so I can dial it in.
I think that turbo will be a little small but looks like there is a little more space for a bigger turbo.
I won't have the Z bar as I am going hydraulic so hopefully that wont be an issue on mine.
Not sure what the piston is going to do, does that fit onto the distributor somehow?
I am going to go with something electronic as I figure the timing being off will be the easiest way to trash the engine. MSD makes a boost timing unit, but I think I am going to reuse one of my spare standalones and run fuel injection with some ls coils so I can dial it in.
Racer
Joined: Oct 2006
Posts: 435
Likes: 18
From: Florida
I don't see how that turbo ( even 2 is smallish) isn't a major choke on a 350 cube engine. It will be ovver worked and outside it's efficiency at anything but "idle" conditions. At least throw a China gt45 on their for 200 dollars so you know your not chasing heat related issues and know that timing changes are accurate. Longevity surely won't be good over spinning it and that could easily take out the entire engine too...
Advanced
Joined: Apr 2018
Posts: 65
Likes: 3
I don't see how that turbo ( even 2 is smallish) isn't a major choke on a 350 cube engine. It will be ovver worked and outside it's efficiency at anything but "idle" conditions. At least throw a China gt45 on their for 200 dollars so you know your not chasing heat related issues and know that timing changes are accurate. Longevity surely won't be good over spinning it and that could easily take out the entire engine too...
Advanced
Joined: Apr 2018
Posts: 65
Likes: 3
Update
Burning Brakes
Joined: Nov 2013
Posts: 889
Likes: 472
From: Central NJ
I don't understand how the piston is acting differently than the vacuum can.
In any case, if all I was doing was timing control for boost, I'd put together a small controller using an Arduino, map sensor and a remote control servo. Probably under $30 in parts. The arduino can read the map sensor and tell the servo where to put the timing. It could even be calibrated so you know the exact timing at all times. Add a $4 led numerical display and now you've also got a digital boost gauge.
I could help you with the program if you're interested.
In any case, if all I was doing was timing control for boost, I'd put together a small controller using an Arduino, map sensor and a remote control servo. Probably under $30 in parts. The arduino can read the map sensor and tell the servo where to put the timing. It could even be calibrated so you know the exact timing at all times. Add a $4 led numerical display and now you've also got a digital boost gauge.
I could help you with the program if you're interested.