This is a thread where people get to post pictures of their turbocharged 2.8s fore the sake of people who have yet to turbocharge their stock 2.8. A noble cause, indeed. If you have a turbo on you 2.8, please post a picture and tell us what make and model your turbo is, the compressor/turbine AR ratio, when it starts making boost, and power/torque gains.
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11:13 PM
PFF
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Sep 10th, 2007
Dennis LaGrua Member
Posts: 15145 From: Hillsborough, NJ U.S.A. Registered: May 2000
I would only consider turbocharging a low miles or rebuilt 2.8L . It's been done many times before and the formula is not hard. Build a croosover pipe, mount the turbo , the exhaust and tune. Brings the 0-60 down to about 6.5-6.8 seconds with 8 psi of boost and no other mods.
------------------ 87GT 3.4 Turbo- 0-60 5.2 seconds 2006 3800SC Series III swap in progress Engine Controls, PCM goodies, re-programming & odd electronics stuff " I'M ON THE LOOSE WITHOUT THE JUICE "
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11:16 AM
rogergarrison Member
Posts: 49601 From: A Western Caribbean Island/ Columbus, Ohio Registered: Apr 99
Or buy Design One kit thats all a bolt on. I had it on my 3.1 racing engine and it worked wonders. Raced many V8 cars (non Fieros) and blew their doors off.
For the price of a turbo kit you could swap in a more powerful/reliable motor. Like a 3800 series 1 or 2 supercharged or not. If you must spend money on the "boat anchor" then post your email and I will send you the chevy power manual for 60* V6s.
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04:47 PM
Mr.PBody Member
Posts: 3172 From: Cincinnati, Ohio, USA Registered: Oct 2006
Or buy Design One kit thats all a bolt on. I had it on my 3.1 racing engine and it worked wonders. Raced many V8 cars (non Fieros) and blew their doors off.
The turbo kit will workI can think of many less expensive ways to get 190HP. The Design One costs $3500 = 190-195 HP on a stock 2.8L Less money could be used to buy a 3800SC that gives 240-260HP. The 3800SC wil require more work to install but there is no comparison. Also a home brew turbo system can be done for about $1000
------------------ 87GT 3.4 Turbo- 0-60 5.2 seconds 2006 3800SC Series III swap in progress Engine Controls, PCM goodies, re-programming & odd electronics stuff " I'M ON THE LOOSE WITHOUT THE JUICE "
SOOO a chevy 3800 V6 Supercharged makes 260hp???..funny really...a N/A Honda 3.5L makes 268 hp...hmmmmmm what auto manufaturer knows best?..honda bets better mpg too lol...i just had to throw it in. im by no means a honda guy..but you cant run from facts. or hell even better the new nissan 3.7 N/A is pushing 330hp.. hehe..gm's new 3.9's making what now?
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06:45 PM
Firefighter Member
Posts: 1407 From: Southold, New York, USA Registered: Nov 2004
Well since you asked for a photo and have none so far, here goes. This is a Garrett T/3 with (I believe) and A/R of .68 and aTurbine of .48. I bought it from Dennis LaGrua several years ago (he no longer sells them) and it is a KFG kit - no longer manufactured. As Dennis states above and I think he got the numbers from me, it will give a stock 2.8 in good shape the ability to go from 0-60 in from 6.5sec. to 6.8sec. The engine is a new long block, now with 15,000 miles on it. The timing is stock at 10 degrees BTC, it has stock 15 lb. injectors. The boost is factory set not to exceed 8 lbs. of boost. It produces 199 hp at 8 lbs. and has a water / alcohol "poor man's intercooler" injection system. The water/alcohol is injected where the turbo boost tube meets the throttle body. See blue hose. It works exceptionally well. The kit fit like a glove, used every part and had none left over after installation. The only extra accessories were a 2 BAR MAP connector. It is not the same as the 1 BAR MAP connector -get it from Chevrolet. And I elected to use all braided steel lines for both the oil lubricating lines and the water cooling lines going to and from the turbo water jacket. I still get 24-25 miles highway if driving normally.
[This message has been edited by Firefighter (edited 09-10-2007).]
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07:17 PM
p8ntman442 Member
Posts: 1747 From: portsmouth RI Registered: Sep 2003
Just so you know, the fiero intake we are all forced to suffer with is a direct result of a Gm engineer trying to get a turbo as close as possible to the valves to prevent lag. Gm kept the intake design and ditched the turbo project.
GM's turbo 2.9 fiero v6
edit Fire fighters car: from a show in New england, one of the kits avail. kfg or design 1 not sure
Shaun hammit has the nicest turbo setup I have seen yet, alot of time and money went into his build and it is by far the best plumbed setup I have seen.
[This message has been edited by p8ntman442 (edited 09-10-2007).]
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07:39 PM
Firefighter Member
Posts: 1407 From: Southold, New York, USA Registered: Nov 2004
By the way, the attached photo shows the correct oil FLOW to the turbo. Prior to installing the turbo, I connected the oil line which would go to the turbo, to a container with the correct oil connector. As you can see, the oil stream is quite compact (thin) but has plenty of pressure. This amount of oil is all the turbo needs and will not blow out the seals. The key is oil FLOW not PRESSURE.
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07:41 PM
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Blacktree Member
Posts: 20770 From: Central Florida Registered: Dec 2001
That's a good point. I had to install a larger metal shield around my ignition coil and I do know some guys who moved it completely to a remote location on the rear firewall. Also with the K&N filter setup, - I melted the rubber housing connector on one before I installed a metal shield to keep it away from the cross over pipe. Ed
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[This message has been edited by Firefighter (edited 09-10-2007).]
SOOO a chevy 3800 V6 Supercharged makes 260hp???..funny really...a N/A Honda 3.5L makes 268 hp...hmmmmmm what auto manufaturer knows best?..honda bets better mpg too lol...i just had to throw it in. im by no means a honda guy..but you cant run from facts. or hell even better the new nissan 3.7 N/A is pushing 330hp.. hehe..gm's new 3.9's making what now?
You are comparing apples to oranges, the import engines you listed if I'm not mistaken are DOHC engines in which case you would need to compare them to the GM 3.6L DOHC which is more than capable of those numbers and is already in production form at 275 hp or more. You have to compare the torque ratings also because the area under the curve is very significant especially in a blown engine. The 3.9 HO version debuted at the 06 auto show is rated at 270 hp naturally aspirated, otherwise 242 hp.
High power and practicallity is an issue also, I'm at my wits end with the turbo 3.9L, it fits fine but turbos add an entirely different dynamic, characteristic of installing a naturally aspirated engine that requires custom mounts etc. to accomodate it except a little more.
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08:30 PM
jeffndebrus Member
Posts: 2772 From: Jacksonville, Fl- usa Registered: Aug 2001
For the price of a turbo kit you could swap in a more powerful/reliable motor. Like a 3800 series 1 or 2 supercharged or not. If you must spend money on the "boat anchor" then post your email and I will send you the chevy power manual for 60* V6s.
chjesthe@cfl.rr.com
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07:56 AM
Will Member
Posts: 14226 From: Where you least expect me Registered: Jun 2000
SOOO a chevy 3800 V6 Supercharged makes 260hp???..funny really...a N/A Honda 3.5L makes 268 hp...hmmmmmm what auto manufaturer knows best?..honda bets better mpg too lol...i just had to throw it in. im by no means a honda guy..but you cant run from facts. or hell even better the new nissan 3.7 N/A is pushing 330hp.. hehe..gm's new 3.9's making what now?
And GM's 3.6 DOHC engine in the '08 CTS has direct injection and will make 305 HP. Compare apples to apples if you must compare.
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08:27 AM
Firefighter Member
Posts: 1407 From: Southold, New York, USA Registered: Nov 2004
A slightly different topic, but since the issue of torque came up - This is hard to believe but the Subaru WRX STi has 290 ft. lbs. of torque and my 2006 Prius Hybrid has 295 ft. lbs. of torque. So don't mess with my hybrid car. Ed
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10:31 AM
PFF
System Bot
Will Member
Posts: 14226 From: Where you least expect me Registered: Jun 2000
Inter-cooler in the wing how did that work out? It seems like a great idea to me I take it since it was a prototype and the project got scraped that wing isn't available
all-so goatnipples I wouldn't mind a copy of that power manual if you don't mind jstntlvr@yahoo.com thanks
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11:42 AM
p8ntman442 Member
Posts: 1747 From: portsmouth RI Registered: Sep 2003
The wing is available, but you would need to sneak into the gm heritage center to get at it. The car was known as the "porsche eater" and then they removed the tailights that said that, and swapped on a fast back clip. 2 cars were made atleast on survives, and I know of 2 of the aluminum engines in public hands, one being mine. Gm was doing 4.9 second 0-60's with this setup. Overboosting and then dropping down after launch.
Is that the book with the black cover with several pics of small-block, big-block, and the Baretta Indy V6 on the cover? Or is this just a book dedicated to the 60* V6?
If it is the latter, can I get a copy too? rjblaze@verizon.net
stock 2.8, To4B turbo with 69 ar exhaust 60 ar cold side, 2.5" exhaust from y-pipe to turbo, air/water intercooler, Cartech FMU for fuel control. No dyno numbers as clutch is slipping but starts making boost around 3,000 rpm's and pulls hard to the clutch slips around 8 pounds of boost. I plan a 3400 swap, thats why i chose this turbo, but it does work well with the 2.8.[img]https://images.fiero.nl/pffimages2/Picture_665_1.jpg">[img]https://images.fiero.nl/pffimages2/Picture_660.jpg[/img ]
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07:05 PM
PFF
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p8ntman442 Member
Posts: 1747 From: portsmouth RI Registered: Sep 2003
That may be MSRP, but can be found for lot less. I picked up the complete unopened kit for $1400 back in 90s. The nice thing is by buying the kit, you get everything needed and its all known to work together. Unless your very knowlegable in turbos (which I wasnt) piecing together odds and ends of parts is not a good idea.
I have an old Miller-Woods turbo kit in my 88 IMSA t-top. I've hacked up the kit a tad and will add a bigger turbo after I finish with the body.
I've added a Spearco liquid intercooler and a Tial blow off valve with a Johnson water pump pumping coolant through the exchangers mounted in the sidescoops. Nothing was cut out to make it all work.
The motor is a crate shortblock with a few goodies including a Crower turbo grind cam. It ran a 14.5 at 93 MPH with the old tiny turbo. I never did get a real good run in and pretty sure it's a high 13 second car.
[img]https://images.fiero.nl/pffimages2/Picture_665_1.jpg">[img]https://images.fiero.nl/pffimages2/Picture_660.jpg[/img ]
