e30 318 to 325 engine conversion
Moderator: martauto
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vas
- E30 Zone Newbie

- Posts: 2
- Joined: Wed May 30, 2012 11:00 pm
hi i have a e30 318 im doing a engine swap to a 325 engine can anyone help me as to what i will exactly need to do this swap and how to go about it
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pacerpete
- E30 Zone Team Member

- Posts: 18165
- Joined: Sun Jan 23, 2005 11:00 pm
- Location: Iver heath. South bucks.
Welcome to the zone. This conversion and all the relevant information is well documented in the engine swap and technical section.
On the other hand, if you need to ask, it is probably better to pay somebody who knows what they are doing ,to do it properly.
On the other hand, if you need to ask, it is probably better to pay somebody who knows what they are doing ,to do it properly.
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magpie
- Old Skooler

- Posts: 28035
- Joined: Sun Jun 29, 2008 11:00 pm
- Location: Consett,Durham.
you need 325i donk,box,clutch,flywheel,starter ,loom,ecu,afm,full zaust and prop .best of putting engine and box in in one go as it saves a lot of messing about,it's all about the angle of dangle .
you will want to change your 318i 47mm front struts to the beefier 51mm ones with 325i springs and vented discs with callipers and maybe uprate the rear drum brake trailing arms to rear disc ones .
you will want to change your 318i 47mm front struts to the beefier 51mm ones with 325i springs and vented discs with callipers and maybe uprate the rear drum brake trailing arms to rear disc ones .

m52 b30 stroker 6-speed 318is Galvanizer
m42 touring
+ a yard full of scrap turds
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leeparkes
- Married to the E30 Zone

- Posts: 9535
- Joined: Thu Jan 03, 2008 11:00 pm
- Location: Black country
And swap the small case diff for a medium one.
Cypriotgeeza wrote:I done both my mates in my old 318is
felt so proud,even tried it with a E30 325i and got put in my place..
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vas
- E30 Zone Newbie

- Posts: 2
- Joined: Wed May 30, 2012 11:00 pm
i have read other posts some people are saying its plug and play and it just takes a little bit of wirting looms mod. the engine and box and mechanicals are all fitted but the car wont fire up
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e30topless
- E30 Zone Team Member

- Posts: 13595
- Joined: Wed Aug 23, 2006 11:00 pm
- Location: surrounded by scrap
it's plug and play for someone that's mechanically minded
so do you have fuel/spark ?
so do you have fuel/spark ?
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bmw9818
- E30 Zone Addict

- Posts: 2561
- Joined: Tue Aug 11, 2009 11:00 pm
- Location: Croydon
only wiring mod is pin 20 on the c101 just cut it away and heat shrink it, 318i so you prob aint got abs,
if it aint cranking switch over cps and cid plugs
check the starter wiring and make sure you got the b/y on right terminal, and you obv got the large wire coming straight off the battery?
if it aint cranking switch over cps and cid plugs
check the starter wiring and make sure you got the b/y on right terminal, and you obv got the large wire coming straight off the battery?
