The BMW motor won't work well in your Jeep, ESPECIALLY if you are into
offroading. The BMW motor makes its power and and torque well above idle,
but the Jeep really needs its power to come on just off of idle. There isn't
enough torque in the BMW motor to make offroading very rewarding. Now, if
you wanted a Jeep that could do 130 mph, and kicked the power on at 3000+
RPM, then the BMW motor is just the thing.

I suggest you look at a V8 instead of a 6 anyway. The 8 and the 4 are the
same length, the 6 is much longer. This means that stuff has to move fore or
aft with the 6 that might remain where it is with the 4 to 8 conversion.
And, the 8 makes torque at idle, if you get the right one.






"Matthew Warren" > wrote in message
...
>I have noticed a lot of you in here own jeeps, some of your names I even
>recognize from eyars of mostly lurking in the jeep groups. So I have a
>question. I have a '91 YJ four banger that is really tired... was thinking
>of doing the often discouraged conversion to the six cyl... and then I
>thought why not use a BMW I6? other than the obvious headache of marrying
>the two electrical systems and drive lines, it seems like the engine would
>fit the application well. Nice smooth, torquy straight six that would
>actually perform decent on the highway as well as off road at high RPM if
>needed...
>
> now I know that there are gunna' be those that cry herresy... but what do
> you think about the application? Has anyone tried it... seems like I
> can't be the first to ponder it. Was thinking about a 3.5 (M60?). Thanks
>
> Matt
> '91 318Is
> '91 YJ
>