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Car Forum / Pontiac / Pontiac Fiero / July 2005

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V6 to Late Model 4Cyl Conversion

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Rod Ouellette - 07 Jul 2005 12:17 GMT
Hi

Does anyone know of a late model DOHC 4 cyl engine with as much or more HP
than the stock V6 that will bolt up and that that computer can be integrated
with?
The car is a 1985 with an automatic and a knocking V6.
 Thanks
Rod Ouellette
gw - 07 Jul 2005 13:30 GMT
> Hi
>
[quoted text clipped - 4 lines]
>   Thanks
> Rod Ouellette

It's possible to swap in a Quad 4 or an Ecotec - but you will need to swap
the transmission and the computer from the donor car. I've heard of a
possible transmission adapter to mate the Ecotec to the Fiero trans, but I
don't think it's available commercially yet. In any case, the Fiero auto is
crap, especially for a high-revving DOHC. The V6 Fiero computer was never
intended to run a 4 cylinder.
Stephen  Rabinowitz - 08 Jul 2005 12:35 GMT
GM should have originally had the quad 4 instead of the iron duke in the
Fiero.

>> Hi
>>
[quoted text clipped - 14 lines]
> crap, especially for a high-revving DOHC. The V6 Fiero computer was never
> intended to run a 4 cylinder.
Mr Potatohead - 08 Jul 2005 20:14 GMT
Stephen Rabinowitz <steve86@ wrote:

> GM should have originally had the quad 4 instead of the iron duke in the
> Fiero.

It's up to us. GM wanted the Fiero to be a commuter car, for people to
dart in and out of town. It was sportscar people who made them go with
the V6 in 1985 and the quasi-hatchback body in 1986 and it is sportscar
people, not GM, who continue to "evolve" the car today. GM should have
done a lot of things, some of which might have helped them over the hump
they have to deal with today.

Actually, the idea behind the commuter car is still a good one and in
light of the price of gasoline today, you might see substantial growth
in that automotive subset. Look at the Mini little Brit cars that are
delighting college professors all across the country. Naturally GM
(Pontiac) will put out an super-economy gasoline-driven car about the
time that the rest of the world is driving electric skateboards from Korea.
JazzMan - 09 Jul 2005 03:34 GMT
Stephen Rabinowitz

> GM should have originally had the quad 4 instead of the iron duke in the
> Fiero.
[quoted text clipped - 17 lines]
> > crap, especially for a high-revving DOHC. The V6 Fiero computer was never
> > intended to run a 4 cylinder.

Was the Quad 4 even available when the Fiero was introduced?
And even if it was, the early Quad 4's were notorious for
chucking head gaskets left and right.

JazzMan
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