I have a 1990 300 SE with a 6-cylinder gasoline engine, and the car has a
hard time getting out of its own way. You can floor the thing and wait till
doomsday for it to get to 60.
I know it needs a tune-up, but I'm curious: Can I put an 8-cylinder engine
in that thing, which would be the same engine as ... what, the 560, I
believe, which is pretty much the same car other than the engine.
that thing, which would be the same engine as what, the 560<<
You can put a Chrysler Hemi on a Schwinn if you have enough time and money...
and little enough common sense.
425 White Horse Pike
The only way to do it is to have a COMPLETE 420 or 560 car. You will need
engine, trans, harness, computers, exhaust, springs, speedometer, rear, etc.
425 White Horse Pike
Same motor mounts. A bunch of the electronics is different so
you'll need the donor car to rape for parts.
Driveline components may be diferent too - transmision, driveshaft etc.
Front springs are different.
Motor mounts are the least of your worries :-)
Your car "had" 177 hp new so it should be enough to propel you at a decent
rate. I think you should try a other things first and see if tuning gives
you enough power. Things like an airfilter, spark plugs, plug wires, etc. If
you still want more hp try a low boost supercharger to give you some more. I
dont think replacing the engine should be your first try at some more power
as it is more work than just a quick swap and will probably cost more in
time and money than the cars worth.
Along these lines of mods vs engine swap, I think it is as much the
transmission profile as it is the engine. Note that your car likely starts
in 2nd gear. Try starting from a stop with gear selector in "2" position.
On my 300se, this temporarily starts the car off in 1st gear. It makes a
big difference and gives you an idea what the motor can do.
I also find dropping to 3rd for quicker highway passing works well.
I just got a 300se - it is big, heavy, sedate, and definately not as quick
as my 300e. I just put new plugs, wires, cap, and rotor on, and that
indeed helped a bit (looked like original parts were still on!).
On Sun, 31 Aug 2003 18:48:59 -0400, Tim Murray wrote:
I have a 1984 280SE (Euro spec). When I bought it, I was giving serious
thought to engine swaps - then I found out that the engine was
knackered. My local MB guru sourced a good second hand 280 engine and
performance was in a different league - if still only pleasantly adequate.
Hills that I had to change down on I can now accelerate up in top. It even
kicks down more happily.
I would suggest that with this size of car, minor difficiencies could make
a big difference. Have you driven a 300SE that you know to be in good
condition? If not, you should try to before major surgery.
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