Complete Engine Swap - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
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#1 (permalink) Old 04-12-2005, 11:09 AM
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Where do I find complete engine available for Sale for my 1990 E30?
Either E30 M3 engine, E34 M5 engine or E36 325i engine.
And how much does it usually cost?
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#2 (permalink) Old 04-12-2005, 11:20 AM
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Quote:
Originally posted by tomsbmw325is@Apr 12 2005, 08:09 AM
Where do I find complete engine available for Sale for my 1990 E30?
Either E30 M3 engine, E34 M5 engine or E36 325i engine.
And how much does it usually cost?
[snapback]330773[/snapback]
http://www.bavengine.com/engine.html

4 - 8k

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#3 (permalink) Old 04-12-2005, 11:24 AM
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if you are looking to swap, best bet is to find a wrecked car and get everything you need, in terms of cost and finding all the parts you need for the swap.


but in all honestly the motor you should be looking for should come out of a 533i, that would be your best bet. easiest to swap with the biggest gains.....oh and i wouldn't go E30 M motor, you want to increase the displacement not reduce it

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#4 (permalink) Old 04-12-2005, 02:11 PM
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what year of the 533i? Why this engine over the M3 E30? Can you elaborate?
How many HP does the 533i engine give?
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#5 (permalink) Old 04-12-2005, 04:17 PM
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i am unsure of the HP gains with the 533i, but i know you are upping displacement to 3.3 and getting rid of your timing belt woes every 50k cause she is chain driven........i say this motor for a couple of reasons......1) it's a six banger, you mod a six you mod a four, six will always win. there is no replacement for displacement. true stock out of the box the M3 E30 motor is tons of fun, don't get me wrong......but you can mod this motor and be faster than the M3 E30 motor. which brings me to 2) cost.......first of all finding everything for the E30 M motor swap is going to be fun. you will need everything for the swap seeing how you are going from a 6 to a 4 banger......and everyone knows that BMW means Bring Money With you......and M means bring More money with you.......the cost of the M swap would be pricey. and if you split the difference and took the savings and invested into the 533i motor you would probably be faster at the end of the day, if nothing else rocking around with some extra cash in your pocket.....which brings me to the next question.......why not just mod your current motor? you can do the diesel crank drop in, a nice super charger, and/or the MAF and single throttle body conversion and be solid and making some very nice HP gains all for right around the cost of the swap or less........just something to think about.....

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#6 (permalink) Old 04-12-2005, 11:08 PM
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Thank you for the thorogh explanation.
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#7 (permalink) Old 04-13-2005, 10:30 AM
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#8 (permalink) Old 04-13-2005, 11:28 AM
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an S14 E30 M3 engine is a lot more expensive to purchase then a normal E36 M3 OBDI or II engine. and the E30 M3 takes more maintaince because of the chain, you needa adjust the valves a lot from what i hear.

so at bavengine, id suggest getting the S38(e34 m5 engine) or the e36 M3 OBDI engine(easier and better gains with modifying).

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#9 (permalink) Old 04-13-2005, 11:45 AM
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Quote:
Originally posted by spiff325is@Apr 13 2005, 10:28 AM
an S14 E30 M3 engine is a lot more expensive to purchase then a normal E36 M3 OBDI or II engine. and the E30 M3 takes more maintaince because of the chain, you needa adjust the valves a lot from what i hear.

so at bavengine, id suggest getting the S38(e34 m5 engine) or the e36 M3 OBDI engine(easier and better gains with modifying).
[snapback]331493[/snapback]
yes, that is another option, the E36 M motor........would be cheaper than the E 30 M motor, BUT here again you would need everything and i mean everything for the swap seeing how you are going over to a completely different FI system. but if you found a wrecked one, i would say rock it.....that would be an awesome swap

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#10 (permalink) Old 04-13-2005, 04:59 PM
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the m30 motor is a pretty easy swap from what i hear
bmw actually made a factory 333i using the m30 3.2 engine in the past (187hp if im not mistaken, but more torque then the m20b25 as well, not sure of actual #), so im sure there are motor mounts already floating around you could purchase.

alpina in the 80's also did m30 conversions for the e30 and made a couple different motor mounts, some of which did and didnt require modification of the firewall. the ones that did require modification are the best, as they mount the engine pretty far back.. enough so that they dont upset chassis balance.

or one of the more comical swaps i found was there was a fabricator about a year ago selling 4G63 motor mounts compatible with the e30 chassis. in case you dont know, the 4g63 is a mistu. EVO engine. not a bad engine, pretty light and 280hp.

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