2.8l v6 turbo charged? (Page 2/6)
SomethingPickles JAN 13, 11:29 PM

quote
Originally posted by pmbrunelle:


I have the heads and red intake from a Fiero.

My 3.1 bottom end displaces 355 cc more than that of a stock Fiero, so that just gives the car a bit more pep. But it's not a huge difference. Also I wanted the crankshaft position sensor of the 3.1, but that's not obligatory for a turbo project.

I could have done the turbo project with a Fiero 2.8 bottom end, and I imagine that the results would have been similar overall... since the bottom ends are similar.




Ahh, alright I see what you mean. Thanks for the input! I'll definitely be looking at your thread a lot
ericjon262 JAN 14, 12:49 AM

quote
Originally posted by pmbrunelle:


After pre-washing the case, yes. That ain't no photoshop!




This is actually one of my big plans for my workshop, a crappy old dishwasher is a pretty good parts washer.

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"I am not what you so glibly call to be a civilized man. I have broken with society for reasons which I alone am able to appreciate. I am therefore not subject to it's stupid laws, and I ask you to never allude to them in my presence again."

cognita semper

Will JAN 14, 08:05 AM

quote
Originally posted by pmbrunelle:

Here, I clean the transmission case:





quote
Originally posted by ragoldsmith:

Did you...really put it in the dishwasher?? This is fantastic!



I've put an engine block in the dishwasher...


quote
Originally posted by ericjon262:

This is actually one of my big plans for my workshop, a crappy old dishwasher is a pretty good parts washer.




And you can start it and walk away without spending hours scrubbing.
With a dishwasher and the largest ultrasonic cleaner you can find, you'll never reinstall a filthy part again.

[This message has been edited by Will (edited 01-14-2021).]

pmbrunelle JAN 14, 08:59 AM
With aluminium, I would say that the usual high-pH soap works, but it can leave white corrosion on the surface, requiring extra cleanup if you're not fast at removing and drying the parts after washing.

There does exist aluminium-safe degreaser such as some variants of Simple Green, but it might make bubbles and not work in a dishwasher.

There does exist some anti-foaming stuff that kills bubbles; perhaps this could be used to make Simple Green or others work in a dishwasher. I know it works... when I was a kid, I used normal Sunlight dish detergent in the dishwasher (bubbles poured out everywhere), and my dad brought home this stuff from work that killed the bubbles.
Honest Don JAN 14, 10:19 AM

quote
Originally posted by Will:


And you can start it and walk away without spending hours scrubbing.
With a dishwasher and the largest ultrasonic cleaner you can find, you'll never reinstall a filthy part again.




Ultrasonics are amazing!
Honest Don JAN 14, 10:29 AM

quote
Originally posted by SomethingPickles:

I want to turbo charge my currently stock V6 fiero. I dont want to go overboard though, I really only want to get 200hp out of it. I'm not interested in engine swaps or anything like that, I'm pretty much hell bent on putting a turbo on the stock V6. With that in mind, has anyone else here done that, and how hard would it be? Does anyone know where to get a turbo manifold and stuff like that? And this is my project car, I don't mind if the work "isn't worth it" or takes too much time, that's ok.



I've done it; works good for what it is. How are your welding skills? I was fresh out of a welding class at the local CC when I did my hotside. As pmbrunelle said, its more making than buying to fit a turbo.
Dennis LaGrua JAN 14, 11:05 AM
On my first 87GT 2.8L I was looking for more power and installed a turbo. It was a Garrett T-3 turbo originally from an old 2.5L Ford Mustang. With some fabricated exhaust work it worked OK, certainly gave more power but I went on to other options rather quickly.
My impression: Not the best solution, especially with cast pistons. If you keep the boost at 5-7 lbs the engine may last but if the tune is off, the engine goes lean and detonates, say goodbye to those pistons especially if they have high miles on them.
My conclusion and opinion: The power increase is good, the tune very difficult to get right, gas mileage will go down and most engine swaps offer a better option.

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" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "

Honest Don JAN 14, 11:46 AM

quote
Originally posted by Dennis LaGrua:

On my first 87GT 2.8L I was looking for more power and installed a turbo. It was a Garrett T-3 turbo originally from an old 2.5L Ford Mustang. With some fabricated exhaust work it worked OK, certainly gave more power but I went on to other options rather quickly.
My impression: Not the best solution, especially with cast pistons. If you keep the boost at 5-7 lbs the engine may last but if the tune is off, the engine goes lean and detonates, say goodbye to those pistons especially if they have high miles on them.
My conclusion and opinion: The power increase is good, the tune very difficult to get right, gas mileage will go down and most engine swaps offer a better option.




I agree that the tune is important, but only 7psi is a waste of time - there's just not enough cubes/airflow in a 2.8. My stock pistons have almost 120k on them now and the lightest gate spring I've ever used made 9psi. It's been running quite awhile on a 13lb spring.

I can't recommend trying this, but I added EBC last winter. Over the summer/fall, I've worked my way as high as 16, but started running into some ignition weirdness (maybe spark blowout?) Hopefully I can get that sorted when the snow melts.

[This message has been edited by Honest Don (edited 01-14-2021).]

Thunderstruck GT JAN 14, 12:02 PM
The tune is always a key factor in any application and that should go without saying, it's not something special to the 2.8. Any turbo or nitrous build is particularly finicky when it comes to the tune.

As a long time drag racer, if you don't have the tune right you will not just lose a race, you could lose an engine regardless of it's induction system.
thesameguy JAN 14, 12:20 PM

quote
Originally posted by Honest Don:
I agree that the tune is important, but only 7psi is a waste of time - there's just not enough cubes/airflow in a 2.8. My stock pistons have almost 120k on them now and the lightest gate spring I've ever used made 9psi. It's been running quite awhile on a 13lb spring.



Are you intercooled? Or using water injection or something similar?

I would think that a small turbo, small intercooler, and ~10psi would make for a good & safe setup.