My buddy and I are sick and tired of the POS 2.5 CFI 80HP motor that came in his 86 Pontiac Fiero. So Ripped it out and were gonna drop in a 3.1from a 91 Grandprix with the full compter and harness. The car is a 5spd. Any how here are some pics of what we've done. We think this thing should actally move for once. What do you think.
spiffy. Does the transmission match up.
I think if you're gonna go that far, go all the way: http://www.v8archie.com/ :evilgrin: :D
Caddy 4.9 is the best swap out there. If I had a fiero thats what I would do.
So a caddy engine vs. this one?
http://www.fieroaddiction.com/caddy49b.html
Try finding a LT1 engine at your local U-Wrench it. Every time I got to the local junkyards there is a 4.9 caddy there. LT1's are so cool ... err not cool. ah (cougarse) runs back to closet--->....
In all honesty though those engines are pretty nice. They run an 11.0-1 compression ratio factory.
3.1 aint a bad little motor and if you can find a 91 or 92 Grand Prix, some had the 3.1 with a supercharger from the factory. If I recall correctly, the blocks and pistons are identical. Heads, intake, computer fuel injectors and of course the supercharger are the differences. This info is from a guy I used to know in Jersey who was a major Grand Prix buff. I'm pretty confident his info was on the mark.
Excellent! the 3.1 will be a nice swap, pretty simple and will really kick up the performance.
Yep we know it will bolt up. We'ed slap a v8 in there but it would munch that tranny. As far as the Grand prix I found some info on a 89-90 3.1 turbo. We also have looked at the super charged setup but think we'll stick with what we got for now.
Um, not quite. Upgrade the clutch to a performance piece and it'll be fine. It's the automatics that have a slight problem handling the v8. But a bit of beefing up and those are fine as well.
I agree if you can find a 2.3 ho quad four they are pretty good, My friend and i ran his Grandam gt and the cougar, he stayed with me into third.
My stepson has a 91 tempest with a 3.1 and a 5 speed Muncie/Getrag. Pretty fast car. I can imagine what it'll do in a fiero which I assume to be much lighter.
I found a lot of info about the 3.1 on this page (http://"http://www.v6z24.com/"). Some ricey stuff there though.
3.1 didn't come with superchargers if I recall. the 3.8's did.
Like I said....second hand info, but he did know his stuff......
Were the first Gen GTP's 3.8's though?
I found a turbo Grand Prix 3.1 from the factory, though. I didn't even know they existed. Now THAT would be fun in a Fiero.
(http://memimage.cardomain.net/member_images/6/web/450000-450999/450081_4_full.jpg)
I'm not sure on it myself, I mean it is a GM. LoL
I know the earlier ones were 3.1's. I guess it WAS a turbo and not a supercharger. It WOULD be a nice sleeper.