Twin turbo set up

Blackbetty85

New Member
Joined
Jan 28, 2016
Hello I'm new and I was wondering if anyone has a twin turbo Buick. I was wondering if it would be a better idea to keep the original turbo then put a bigger turbo after the smaller one for more power. Or would a better idea be to put on two decent sized turbo for each side? Thank you for any help.
 
Hello I'm new and I was wondering if anyone has a twin turbo Buick. I was wondering if it would be a better idea to keep the original turbo then put a bigger turbo after the smaller one for more power. Or would a better idea be to put on two decent sized turbo for each side? Thank you for any help.

As a new guy to this Turbo Buick world, it would serve you best to not even think in this direction for now.

Instead, start asking questions about the simple stuff like "how do I get my car to run correctly?" and "How do I service it?" and "What fluids and filters do I use?" and most important "What do you guys mean when you say 'do a spring cleaning'?"
Picture 011.jpg
Joeys car pics 005.jpg
 
I have been thinking about this too, I just need to figure a way to keep ALL of my creature comforts especially AC
I like the 84-85 twin turbo setup, the accessories look like they are more twins friendly
 
I have been thinking about this too, I just need to figure a way to keep ALL of my creature comforts especially AC
I like the 84-85 twin turbo setup, the accessories look like they are more twins friendly
Thinking about what? A twin turbo set-up on an 84/85?

It doesn't matter what year set-up you start with. Because when you start converting to twin turbo........Anything that even remotely resembles what you started with will be completely coincidental.

Maybe a dozen vendors have tried to make some bolt on kit to convert to twin turbo. Guess what? It won't be that simple. I'm not saying what I did is something special. All I'm saying is..... don't think of starting with some set-up. Instead, strip the block down and start from scratch.
 
actually saw the car at atco years ago when I was running mine(y)
Visually, not a lot has changed since then. But there has been some stuff. Back then, I was working out all the bugs. Takes a long while when you don't make it to the track often. It's street manners are very good and the tune is pretty spot on. Still, I cant leave the damned laptop well enough alone.

After all this time it's still never been wicked up.
 
Thinking about what? A twin turbo set-up on an 84/85?

It doesn't matter what year set-up you start with. Because when you start converting to twin turbo........Anything that even remotely resembles what you started with will be completely coincidental.

Maybe a dozen vendors have tried to make some bolt on kit to convert to twin turbo. Guess what? It won't be that simple. I'm not saying what I did is something special. All I'm saying is..... don't think of starting with some set-up. Instead, strip the block down and start from scratch.
Got you.
But for a non fabricator like myself I would try to use and workaround as much stock stuff as possible, hopefully that would equal less fabricating.
Looking at an old twin turbo set up based off an 84-85 accessories layout. It looks slightly friendly-er over the 86-87 layout.
Strictly talking about accessories and belts.
 
Last edited:
Got you.
But for a non fabricator like myself I would try to use and workaround as much stock stuff as possible, hopefully that would equal less fabricating.
Looking at an old twin turbo set up based off an 84-85 accessories layout. It looks slightly friendly-er over the 86-87 layout.
Strictly talking about accessories and belts.
The most non-fabricator friendly way of ending up with a twin turbo Buick is buying one already built by someone else.:D
Saves about 3 years of work and 20,000 dollars.
 
actually saw the car at atco years ago when I was running mine(y)
It is a work of art in person, every time I see joey I spent half the day gazing into his engine bay.. Then I say oh shit I forgot my car was here too lol :D
 
It is a work of art in person, every time I see joey I spent half the day gazing into his engine bay.. Then I say oh shit I forgot my car was here too lol :D
I was afraid looking at my engine was beginning to get a bit boring. I figured for next year I would add a little purple green and yellow powder coating. Maybe some pink wire loom and calligraphy styled engraving on the dog-house.:eek:
 
Visually, not a lot has changed since then. But there has been some stuff. Back then, I was working out all the bugs. Takes a long while when you don't make it to the track often. It's street manners are very good and the tune is pretty spot on. Still, I cant leave the damned laptop well enough alone.

After all this time it's still never been wicked up.
Not to hijack this guy's thread, if you don't mind sharing how much boost were you running when you did the pass in your sig? I was very close to buying a tt setup from one of the board members. Can't remember his handle, but I'm sure you know who I'm talking about. The setup is in his profile pic.
 
Not to hijack this guy's thread, if you don't mind sharing how much boost were you running when you did the pass in your sig? I was very close to buying a tt setup from one of the board members. Can't remember his handle, but I'm sure you know who I'm talking about. The setup is in his profile pic.
It never hit 23. The driver was on and off the throttle at the launch and the brake switch got stuck on in the last 200 feet or so. This instantly dropped the boost to a hair over 10. This happened because the launch boost mode (10 psi launch) went into effect because the launch trigger for the boost controller was set to be on the brake switch. This was a left over modification from before I had a trans-brake.

But don't think 2 turbos make it this easy. One turbo would do about the same if sized accordingly. The power comes from the rest of the combo as well.
 
yes but there is a lot to be said for building it yourself,sometimes it means more when you sweat for it
Yea.....I could of skipped that feeling of accomplishment and meaning.:meh:

The reason why I did it myself was so I could save myself the heartache and battles I would have had to go through to get others to create what would satisfy me. I didn't need a designer because the design was already in my head. I just needed a fabricator. But most everyone who fabricates, thinks that automatically means they build what they want. I'm not saying it would be wrong, it's just not what I want. So, no! It ain't gonna work that way. I did it myself.
 
On a twin set up with un-equal length headers is a "cross over pipe before the turbos needed Or recommend?
Why not?
A crossover? No. Each side feeds each turbo independently.

However, if you mean a back pressure equalization passage or tube, then the answer is still no. But it may be a good idea. It definitely wouldn't hurt anything. I often thought about incorporating this exact thing into my set-up. I was going to weld 2 bungs before each turbo and connect them with 1/2" flare fitted stainless tubing. This would act as a back-pressure equalizer for both sides. But I would need to give it a little more thought on the cosmetics. Also, now I just had my headers coated again. I don't want to grind of the new stuff.
 
Last edited:
Top