Originally posted by pontiackid86: Ohh man the illegal things i would DO with one of them in my IMSA. 3.0 liters of pure sexyness.
Like i said my dream is to trip over one of these bad boys in a junk yard and haul it home. (i cant beleave i called a 4 cylinder sexy)
I was walking our local yard a few years ago and found an 84 with a IMSA wing. The first thing I do is take the decklid off and put it in my buggy. Then I notice a large PONTIAC valve cover, the aluminum 2 piece one. So I take it too, then I notice that it has a weird 4 barrel carb on it, and it has a intake that says "Edlebrock" on it. So I take both of them too. It has a wierd electonic ignition and I grab that too.
In the end I had to crawl under it to see if it had a Super Duty block and it did not. Damn!!! No SD head either.
Close but still a great day at the yard.
Rob
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03:17 PM
PFF
System Bot
fierosound Member
Posts: 15145 From: Calgary, Canada Registered: Nov 1999
Yes and no My research on the 3.0 cosworth tells me that its a 300Hp engine where the exotec turbo is somthing like 250-260
My Ecotech in my HHR SS is at 290 HP and 315 FT LB at 23 pounds of boost. It has the GM turbo upgrade to a 3 bar map sensors and is under the 5 year 100,000 mile warranty. The RWD Sostice GXP with the same kit and a 5 Speed has 340 FT LB. The transaxle is the only real limiting part of the package. The total stock engine will yeild over 400 HP before they recomend changing the rods and pistons. It then can go well over 600 HP with out too many major changes.
My SS with only this upgrade will pull the 3200 pound car to a 13:87 1/4 mile and still get 31 hghway and 24 city with an automatic. It is one sweet engine.
While the Pontiac engine was advanced in 1985-86 it is pretty old tech now. One has to remember this was based on an old engine then and that was 25 years ago. The Eco today used things even race engines did not have back then. It is kind of hard to compare. But to do a period correct Fiero the Pontiac engine would really nice in the bay.
[This message has been edited by hyperv6 (edited 10-30-2010).]
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12:17 AM
americasfuture2k Member
Posts: 7131 From: Edmond, Oklahoma Registered: Jan 2006
Couldn't you just put an ecotec (or turbo version) in a Fiero and get the same results?
3.0L OHV to DOHC conversion. i read that after the break in it was making 500 hp and still going. its N/A.
that does not have the same history as this engine does. those are force induced to make big power, that Cosworth SD4 is not force induced and it still made damn good power.
Ok guys... I'm still new to Fieros. Fill me in. What kind of engine is this? where/when was it produced?? I read most of the links.. and I still didn't get it
------------------ 1986 SE V6 Auto. 114K miles. 1995 F-150 4.9l Straight 6, Port and polished head, oversize valves, mild cam.
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10:18 PM
Frizlefrak Member
Posts: 2921 From: El Paso, Texas Registered: Aug 2003
My SS with only this upgrade will pull the 3200 pound car to a 13:87 1/4 mile and still get 31 hghway and 24 city with an automatic. It is one sweet engine.
Yes, it is.
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10:22 PM
solotwo Member
Posts: 5374 From: Grand Rapids, MI. USA Registered: Jun 2002
Ok guys... I'm still new to Fieros. Fill me in. What kind of engine is this? where/when was it produced?? I read most of the links.. and I still didn't get it
It was an engine that GM wanted to use in IMSA road racing. It was an over the counter engine. If I recall Pontiac never used it in IMSA but it did get used in some other series very limited. It may have made it into the GTP light cars but I know they did have some issues with the engine around this time and Pontiac pulled back around the same time in IMSA.
It was a good engine but not a great engine. It really was never intended be a street engine but many people have converted these over for this use.
Wouldn't that engine fit easier in the cradle than an ecotech?
The eco is similar in size and lighter. The Eco is very light. I see no advantage.
The SD engine has no balance shaft or Variable Valve Timing. The Eco would be the much refined engine and better on the street. This is kind of like comparing a 350 TPI to the LS3 V8. TIme has brought many advances that make the Eco the much better refined engine.
If I has a Fiero ans wanted to make it period correct with the race engine of the day it is the SD. If I wanted the best engine period it would be the Eco Turbo.
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08:18 AM
Dennis LaGrua Member
Posts: 15145 From: Hillsborough, NJ U.S.A. Registered: May 2000
Yes and no My research on the 3.0 cosworth tells me that its a 300Hp engine where the exotec turbo is somthing like 250-260
The Cosworth engine was designed for road racing and as such makes its power in the higher RPM register. Great for what it was intended for but you could put in a 3900 and get the same horsepower over a wider RPM range. Probably a question to ask Joe Upson.
------------------ " THE BLACK PARALYZER" -87GT 3800SC Series III engine, 3.4" Pulley, N* TB, LS1 MAF, Flotech Exhaust Autolite 104's Custom CAI 4T65eHD w. custom axles, 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 "
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02:47 PM
PFF
System Bot
hyperv6 Member
Posts: 6000 From: Clinton, OH, USA Registered: Mar 2003
Yes and no My research on the 3.0 cosworth tells me that its a 300Hp engine where the exotec turbo is somthing like 250-260
The 24V SD is the exotic one. The Eco Turbo is just every day stuff now.
Like he said the 24V SD was built to race and can be made streetable but it is not what I would call a very refind street engine at higher HP. Todays technology and computers make all sorts of things possible that this engine could not do. It is hard to beat the things they are doing today.
Computers make small engine make lots of power and keep unstable airplanes in the air. We will see a lot more with the foced higher CAFE standards.
