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e34-520iSE 
Really Senior Member I
Joined: 22-December-2003
Location: Gateshead, UK
Status: Offline
Points: 453
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 Topic: 2.7 M20 - Total BMW mag
Posted: 22-September-2004 at 14:00 |
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Hi all!
Anyone got the October issue of Total BMW? If you
have read page 89 onwards. I like the sound of a 2.7
M20 rebuild. I know my M20 block has the dipstick in
the sump, but has anyone in the forum done this
mod? If so, what block/crank/piston/head
combination did you use? This could be my project
for early next year. Can someone point me in the
right direction?
Regards,
Shaun
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Self confessed madman
1990 Brilliantrot 2 ltr M20.
Air force definition of explosives: A loud noise followed by the sudden going away of what was once there a second ago.
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alpina527
Groupie
Joined: 01-April-2004
Status: Offline
Points: 68
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Posted: 22-September-2004 at 14:14 |
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I did it on my E34. Use Eta rods, crank and pistons. Get it mapped and you're away!
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e34-520iSE
Really Senior Member I
Joined: 22-December-2003
Location: Gateshead, UK
Status: Offline
Points: 453
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Posted: 22-September-2004 at 14:30 |
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Hi Alpina 527. What block did you use? I have a 2 ltr
M20 block in my car. Do I look for a standard E34
2.5 ltr block or am I needing to be looking at
scrapped E28's for a block/crank/pistons/head?
Thanks,
Shaun
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Self confessed madman
1990 Brilliantrot 2 ltr M20.
Air force definition of explosives: A loud noise followed by the sudden going away of what was once there a second ago.
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alpina527
Groupie
Joined: 01-April-2004
Status: Offline
Points: 68
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Posted: 22-September-2004 at 17:30 |
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E34 525 block is fine, or get yours bored to 84mm. Give this man a ring. He is a real expert in 2.7 conversions. His name is Les Stannard. 01737555273. If you use your own block you can keep the original engine number (if you get my drift!)
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Deathace
Really Senior Member I
Don’t stick keys in electrical sockets.
Joined: 27-December-2003
Location: Norfolk
Status: Offline
Points: 333
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Posted: 23-September-2004 at 06:16 |
Out of curiosity boring out a few mm on a 525 doesn't sound too bad but wouldnt boring out a fair chunk from a 520 cause adverse knock on effects with the cylinder head having a fair amount of the original metal taken out losing its strength after all this time or do they reline the head to strengthen it?
Its one thing that i have often wondered about with regards to older engines and rebores. Any clarification appreciated.
Russ
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1990 535i SE Auto Metallic Glacier Blue, Low Mileage,
M-Tech Bodykit, Full Leather & Various Custom Mods.
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chippeduk
Really Senior Member II
ECU Tech
Joined: 04-June-2004
Location: United Kingdom
Status: Offline
Points: 696
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Posted: 26-September-2004 at 15:48 |
you can do the 320/520 block without any issues.
i have done this mod and have a proven 235hp without nitrous and around 400hp with full gas @90% @ 5600rpm
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e34-520iSE
Really Senior Member I
Joined: 22-December-2003
Location: Gateshead, UK
Status: Offline
Points: 453
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Posted: 27-September-2004 at 07:35 |
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Hey 235 Bhp doesn't sound bad! So my next move is
finding an eta block to take the crank/ con rods and
pistons. Is this an E28 engine?
cheers,
Shaun
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Self confessed madman
1990 Brilliantrot 2 ltr M20.
Air force definition of explosives: A loud noise followed by the sudden going away of what was once there a second ago.
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e34-520iSE
Really Senior Member I
Joined: 22-December-2003
Location: Gateshead, UK
Status: Offline
Points: 453
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Posted: 06-October-2004 at 18:03 |
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Still trying to source a suitable eta crank and pistons.
Anyone able to help me build a 2.7 monster?
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Self confessed madman
1990 Brilliantrot 2 ltr M20.
Air force definition of explosives: A loud noise followed by the sudden going away of what was once there a second ago.
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chippeduk
Really Senior Member II
ECU Tech
Joined: 04-June-2004
Location: United Kingdom
Status: Offline
Points: 696
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Posted: 07-October-2004 at 08:33 |
i am selling my engine and all bits, the engine alone cost me 5 grand and is the highest spec 2.7 in the uk.
if you need info please mail me or msg me
cheers
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e34-520iSE
Really Senior Member I
Joined: 22-December-2003
Location: Gateshead, UK
Status: Offline
Points: 453
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Posted: 07-October-2004 at 17:10 |
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Wow! I thought my present M20 block rebuild was
expensive at £1200 (last year). You obviously have
some motor there if it cost 5 grand! Were you able to
get a complete eta block to get the right parts (if so,
where???), ar did you buy a diesel crank and
specialist pistons? Cheers!
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Self confessed madman
1990 Brilliantrot 2 ltr M20.
Air force definition of explosives: A loud noise followed by the sudden going away of what was once there a second ago.
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chippeduk
Really Senior Member II
ECU Tech
Joined: 04-June-2004
Location: United Kingdom
Status: Offline
Points: 696
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Posted: 07-October-2004 at 17:38 |
i used this spec.
320i block
karl schmidt pistons
corrillo rods
eta crank (knife edged)
arp bolts
tarmac spec head with alloy valve gear with o/s valves.
eta engines are around all the time for 50 quid.
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2.7 M20 - Total BMW mag