# So is this a six-potter or what?

Discussion in '1990 BMW M3 Group A' started by 1996 Escort cossie, Aug 9, 2002.

1. #1
If they are making 330bhp from an n/a, 2200cc 4-banger, i'm very impressed!

Oh, and, when did the next shape M3 come in? 91'?

2. #2
Re: So is this a six-potter or what?

The E36 M3 coupes first year was 1992 but the sedan and convertible didnt come in until 1994. From 92-94 BMW sold E30 convertables with extra goods such as bodykits, and other items. This was in europe not US.<!-- Signature -->

3. #3
Re: So is this a six-potter or what?

im pretty sure this is a 4-cylinder
actually they used this engine to test the E36 M3 chassis before they switched to the 6-cylinder <!-- Signature -->

4. #4
Re: So is this a six-potter or what?

I thought that the 2.5 litre BMW engine was a six, and the 2.3 was a four. Isn't that right?
Still, 330 hp from a NA, 2.5 litre engine is simply amazing.<!-- Signature -->

5. #5
Re: So is this a six-potter or what?

Displacement 2493 cc
Power 246.1 kw / 330 bhp @ 6500 rpm
Torque 290.15 nm / 214.0 ft lbs @ 7500 rpm
Bore 95.5 mm - 9.55cm
Stroke 87 mm - 8.7cm

Find the volume of each cylinder
(pi(9.55/2)^2)*8.7)
=623.1834

Times by "X"
623.1834X = 2493(Displacement)
Therefore X is 4 (623.2 * 4 = 2493)
Hence It is a 4 cylinder.

6. #6
Re: So is this a six-potter or what?

impressive math, but i could have told you that to begin with:-0

7. #7
Re: So is this a six-potter or what?

How the F#@K do you work that out?

8. #8
Re: So is this a six-potter or what?

The E30 M3's used 2.3 liter four cylinder engines. This is a race version and probably had been bored to 2.5 liters. For a race engine this output isn't outstanding, but it is very respectable.

9. #9
Re: So is this a six-potter or what?

Not all E30 M3's had a 2.3l engine. The M3 Evo III has a 2.5l 4cyl.

10. #10
Hi,
sorry but the dates are not correct.
I know the technic-dates.
Each year there was an stronger Engine.

It startet 1987-1989 with
300-320PS 8500rpm 275torque 2.3332l

1990
330PS 8500rpm 290torque 2.493l

1991
350PS 8750rpm 290torque 2.493l

...

in 1993 or 1994 it reaches 390PS 11500rpm 300torque 2.493l(but this was a M3 made by Linder not by BMW. It was private team, which was normally for the "old" DTM. But it became mor and more expensive so the private team got kicked out.BMW ledt the DTM in 1992. So just private teams tuned the M3 4 Zylinder.