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Old 02-26-2003, 07:14 AM
Mike300ce Mike300ce is offline
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Join Date: Aug 2002
Location: Sydney Australia
Posts: 105
Putting an M104 3.2L in where a M103 3.0L came from advice please

Okay boys and girls time to teach me something.

I have on order this fantastic little engine called an M104 3.2L 24v, and i plan on putting it in my 300ce 1988, which previously had an M103 3.0L 12v.

Now what conversions do i need to make, obviously i need to put in a computer to deal with the Electronic Fuel Injection, or the HFM what ever it has. But do i also need to put in fuel pumps or higher pressure lines, i plan on putting in the gearbox from the later model to deal with the power increase and the torque increase but will i need to change the driveshaft, and the diff center?

If so can you please tell me what differential my car currently has and what i need to put in it so that it can deal with the power increase, and the different ratios. Or should i keep the current diff center to have a better take off and 0-60 time.

Top end speed with me isn't a big thing, like i would love to be able to pull 100mph maybe 125mph but thats not necessary as you all may know.

The engine block is the same as i have discovered so therefore i shouldn't need to change mounts or anything, the gearbox selector looks different nbut thats all just cosmetics i can fix that later. what i really need is a plan on how to do this conversion as quick as possible.

I have three mechanics and an auto electrician, and IMHO i'm pretty good at being a DIYer so i hopefully won't have any lack of man power, but i do need brain power i can think of the main things i may need but there are always somethings you forget and its best to know about them before you have one engine out the other half way in and all of a sudden its like

"ah, dude, i think its like the wrong way around, maybe, i dunno" (worst case senario, i don't think even i'm that dumb)

anyway your input would be greatly valued thanks in advanced.

'Some Fear' because 'No Fear' means your not going fast enough.

300CE yr1988,
SL55Kompressor yr2002,
CLK320 yr2002.
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