Okay with the great help of this forum and its members i was able to get the info my car needed to running again. and wanted to know how hard it would be to install twin turbo setup to my car and would this be good or bad or to many turbos? here is the deal my car came with two air research m10 turbos, some pluming and exhaust, a sensor, injector and oil line all witch came in the trunk but was disassembled from car. according to previous owner it was all hook up at one point before he got the car. my question is was it taken off because of drive ability issues and how hard would it be to re hookup? i can post pics of what came with it if that helps but need to know how to post them.

i set up an account at photobucket for all my pics

http://www.photobucket.com

i use Picasa to export the pics to a smaller size

http://picasa.google.com/download/index.html

then upload them to photobucket, and you can copy and post the links they have under each pic to your forum entry

i have no idea about the turbo issues, but maybe with some pics the other members can see and help you

I have the Garrett T / 3 turbo installed on my 2.8. It was a kit from KFG. I'm not sure if KFG is still making the kit, so contact Design1, they make a very popular turbo kit for the 2.8. But do a compression test first. If there are any weak cylinders, forget the turbo or nitrous or a supercharger. It ain't happenin.
And a twin set up?????????? I do not know of any that have been successful. Don't forget, a stock 2.8 in good shape can only handle up to 9 or 10 pounds of boost or you have rebuild the internals. I would think that one turbo is more than enough. If you expect to fly, get a 3800SC II instead or a Northstar.

Ed

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sell it to me I'll figure it out for my 3.4 p/r swap that I'll be doin.

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Difficult takes Strength, Impossible takes weakness

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Twin turbos will not make more total horsepower than one turbo sized correctly. The reason for twin turbos is that they allow faster spoolup and therefore improve acceleration at the bottom end. You can achieve the same effect if you run an automatic trans with a high stall speed torque converter.
The only twin turbo kit ever made for a Fiero was built by IFG. It used two small IHI turbos and the piping was a feat to behold. The kit was very expensive, created excesive heat and the tuning of the chip was so far off that many a blown engine was experienced. I believe that it was discontinued 10 years ago.
A twin turbo on a Fiero will be difficult to do as you just don't have much room for the plumbing...exhaust piping, oil feed lines, oil return lines coolant feed and return lines air intake and output etc.

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87GT 3.4 Turbo- 0-60 5.2 seconds -Best
Engine Controls, ECM goodies, Chip
re-programming & odd electronics stuff

[This message has been edited by Dennis LaGrua (edited 05-10-2007).]

The Chevy 60 degree v6 "bible" tells us how to beef up the bottom end. For certain it would need that. Twin turbo's are usually deployed for more than 10lbs of boost. It sounds like alot of headache in the tuning department to me. Of course, even a carb was a big tuning challenge for the 2.8.

Arn

I have spoken with Tim Petersen who built GM's Turbo 2.8 fieros. He did build a twin turbo 60degreeev6, but it was in a firebird. And that was for salt flats I believe. The stock fiero intake is designed the way it is because it placed a small t3 right over the auto tranny. This kept the turbo close to the valves and reduced turbo lag acording to Tim. Now he may have overreacted after the turbo 309 fiasco.

All in all, I would never pursue stuffing two turbos into the fiero engine bay. One properly sized turbo is where its at. Ofcourse any turbo on a stock 2.8 is a moot point.

why do you need two turbos when one can get the job done. We are running 26psi of boost on a single turbo 2.8 liter (non-fiero). Two trubos would just take up more room and add more weight.
Dave

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1999 Mercedes ML430, 1987 Fiero GT 450hp,1986 Fiero SE
certified master technician

[This message has been edited by bmwguru (edited 05-10-2007).]

Im not sure you could even find two turbos small enough for that setup. A t2 should be a moderately sized for a 2.8 (GM put them on the STE 3.1 turbo) But as said before theres no point in twin turbos anymore, well there is, but the average guy doesnt have the tech to make use of it.

That being said, turboing the 2.8L isnt the best idea anyway, youd be better off just swapping for an engine that makes more power, the 2.8 will take the power, but not reliably.

the newer vw bug turbos looks really tiny?

If you get a good ball-bearing turbo you should be okay, and like mentioned above, make sure it is properly sized.

I will try to get an account setup for pics i believe it is an ifg turbo kit thats what i was told most of it is their i believe and the car is ifg Lamborghini countach kit car. I would not mind selling it but to fund my car but i dont know what its worth?

A 2.9L aluminum block TT engine put into 2 Fieros by GM. It produced around 220-235 bhp. According to Gary Witzenburg's book, it wasn't put into the Fiero because it "had too much power". It isn't impossible

Of course, these engines likely had very strong internals, and were tuned by well-trained and equipped professionals. While it would be tough to twin-turbo a 2.8, it would certainly be impressive, imo.

Turbos then are not the same as turbos now. Technology has come a long way with forced induction. With the right setup, you can inject washer fluid into the engine to cool it down enough to raise the boost. They didn't have that going on back in the 1980's.
Dave

Well, not exactly. Water injection and water alcohol injection has been around for at least 70 years. It was used on the WWII P 51 Mustang Packard built Merlin engine and on the first turbo car which was an Oldsmobile built in the early 1960's. I have the Spearco water/ alcohol injection system on my 2.8 turbo and it works great. It is commonly referred to as "the poor man's intercooler". But, it actually cools the intake better than the titanic sized intercooler pipe set ups and has no resistance to air flow.

With the 2.8, twin turbos is kind of like a pretty with 3 instead of two (remember the gal or whatever from the bar in star wars) , just not really needed. As a few have said, duals are to reduce spool up time, but the correct size single will do that too. I have a single turbo and have almost no lag at all.

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Trueleo.com/fiero.htm
RSpiderII@aol.com

I've got no lag either....with four carburetors
Dave

quote Originally posted by moleman_in_a_FieroGT: A 2.9L aluminum block TT engine put into 2 Fieros by GM. It produced around 220-235 bhp. According to Gary Witzenburg's book, it wasn't put into the Fiero because it "had too much power". It isn't impossible Of course, these engines likely had very strong internals, and were tuned by well-trained and equipped professionals. While it would be tough to twin-turbo a 2.8, it would certainly be impressive, imo.

Yeah, thats a single turbo. I should know I put that pic up on photobucket. I also run that aluminum 2.9 block and heads. Like I said Tim Petersen never put a twin turbo v6 in a fiero as rumor had it. He had it in an F-body.

Quote=Time Petersen "I also built a twin turbo 2.9L V6 for a Firebird that I have pics of on a stand ready to go into a car at the GM Desert Proving Grounds"

Strong Internals? Not at all. They liked to break the early small journal cranks. Thats the real reason we never saw this engine make production.

Quote=Time Petersen "This is not good pissing of the Chevrolet contingent. When they got word they pressured Bill Hogland, Pontiac’s general manager and VP, to kill the project and use the iron V6. He pulled me into his office and asked if I could fix some of the problems he had heard about (like broken cranks, one afternoon we blew the bottom end out of the engine when a crank gave way during a full pull) and I assured him everything could be fixed, the Chevrolet fillet rolling was out of control and I had a forged crank design complete and ready to tool). He thought for a while and said we wasn’t ready to spend a “Pontiac chit” on this and apologized. We also scared the bejesus out of our GM president when he came out for a ride and tipped in the throttle going around a corner on the Pontiac complex and spun it around a couple of times, unfortunately it was a damp that morning and Fieros with the CG about in the middle would often swap ends."