(Couldn't post this in the construction zone, something about me not being authorized.)
Hi!
I'm a 17 year old guy from Sweden that loves cars and just about anything else that has an engine. It doesn't matter if it's american muscle, european or import, I love them all in different ways. One car that I love in particular is my bone stock 1988 Fiero GT 5-speed. I've owned this car for about 2 years now, and it's my pride and joy! However, I feel it could use some more power (as always
).
This is the Fiero.
So I started reading about what you guys in the states do to get your cars up to speed, and it didn't take long for me to realise that an engine-swap would be required. Now, one thing you need to know about me is that I've had a very hard time making my mind up about what engine to put in my car. I initially planned on making it a long-term project by swaping to a northstar and work on it as I got money.
Then I noticed that the cadillac 4.9 engines we're very cheap to buy in Sweden, and when i saw an ad for a low-milage 4.9 with all the accessories and the ECU for 450 dollar, I jumped on it and bought it. Then started reading about it and found out that it wasn't very mod-friendly.
So i started looking at boosting the 2.8 and 3.4 pushrod-engines and found that it would be a dead end at around 300 hp.
What i really wanted was a cheap engine that responded well to modifications, but would still fit in the Fiero engine bay. In the states, that engine is the L67 3800 SC. But I scrapped that engine for two reasons: 1. I'm not a fan of the way it sounds. And 2. There isn't a single engine avaliable anywhere in the country.
Then I thought, "Well, if none of the American engines suits my needs and wishes, maybe I can find a European powerplant for my car. What immediately came to mind was one of my favorite engines of all time. It makes good power, especsially when turboed, it sounds heavenly, it looks gorgeous and is VERY cheap around here. The engine i'm talking about is the Alfa Romeo "Busso" V6.
This is the donor car.
And this is the crown jewel. The engine!
It's an over-square, DOHC, 24V italian screamer with 190 hp at 6300 rpm, and 161 lb-ft of torque at 5000 rpm that will happily rev to 7500 rpm if you bump the revlimiter a bit. It may not look like much, but it's my first car and my dad is worried about it having "too much power" (Ehm... is there such a thing?
). The swap is however a solid base on which i can modify the engine to become a turbocharged monster OR a high compression, high rpm NA screamer.
The 2.5 has a 88 mm bore and a 68.3 mm stroke. Alfa also made a 3.0 V6 that had a 93 mm bor and 72.6 mm stroke.
My first engine layout is buying a 3.0 engine and making a 2.8 liter hybrid using the 2.5 crank with the 3.0 heads, block, cylinder liners, pistons, and rods. This would leave me with a compression ratio of 7.7:1 and awesome turbo capabilities. With 13 PSI, these engines make 330 WHEEL horsepower and 320 lb-ft of torque.
My second layout is quite similar to to the first one. It would include me buying a 3.0 engine and using the short-stroke 2.5 crank with 3.0 Block, cylinder liners, pistons. the main difference is that i would also be using the 2.5 heads and the longer 2.5 connecting rods to achive a higher compression ratio of 11.0:1. And a 93 mm bore with a 68.3 mm stroke helps giving it a redline of over 8000 rpm. I've read that they make around 250 horses and much more low-end torque than the stock 2.5.
The most cost-effective route would however be to just turbo a completly stock 2.5 or 3.0 V6. A bone stock 2.5 with 7 psi of boost puts down 300 hp to the rubber, and the same setup with a 3.0 turns out a bit over 300 hp!
The best part is that the stock ecu adapts to low boost levels so there's no need for a remap, the car remaps itself!
A supercharger isn't out of the question either...
Although this will be in the future. For now, i'm focusing on getting the 2.5 into the Fiero. It will be a snail-pace build however, as i'm the one saving money to finance this project.
I will probably make an interior-swap as well, using the dash from the Alfa.
The seats aren't too bad either, real MOMO leather.
Well, thats it for now, but I will try to update this thread whenever i get something done. But like I wote earlier, I will probably change my mind at least 100 times before something happends. I will for instance buy a 3.0 if i can find one for cheap and start there.
So long!
BTW, do any of you guys know if this swap has ever been done before?
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/Morgan
1988 Alfa V6 6-speed swap in progress
It also had electrical issues. A taillight bulb was short-circuiting, which made the fuse go. This made the stereo, foglights, brakelights, rear window heater, power windows and 12v socket malfunction. The exhaust had a big leak as well. All of those issues have been dealt with! 
