E30 Zone

Hello, have you done the M30 engine transplant on an E30? If you have did you have any problems with the exhaust manifold on the steering colum?

Many thanks

Grant

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1. COTTY
2. bazza93
3. essexboy
4. tylerma
5. 1an
6. 12345kevin
7. DRIFTBOY
8. dips346
9. Theo325
10. Oguz327
11. d6dph
12. gareth
14. spook
15. mattG
16. mincedbeef 335i cab
17. Smithy318i
18.DANGEROUSuk im in
19.tom325sport
20.DelaneyG

iv got a dashboard if u need one its mint aswell

Hello all evry1 have a good weekend? cant say im familiar with the E21 engine so it may be the same my mate has the same age car with the same engine code and they are both rapid as both of us have done the E36 320i nothing wrong with these pistons bro their you go agen of course they extend to each...

http://img218.imageshack.us/img218/6128/0406084lx7.jpg http://img55.imageshack.us/img55/2336/0406090vt7.jpg http://img59.imageshack.us/img59/1007/0406091am9.jpg My bad their is a cut out for the inlet valve, but im fairly sure thats a domed piston what do you u think? No i work for MB motors new ad...

sorry mate i only work on cars i dont know a thing You're not wrong there. :D In case you didn't know, the smaller the port, the faster the gas speed = the faster it arrives at the valve, the more gets crammed in on one stroke. This is how four valve per cylinder technology came about............. ...

Well it's like this Del Old Boy. Firstly you never mentioned anything about skimming heads or blocks so please don't come here shouting the odds about your pointless project. Secondly a B20 does not have domed pistons - they have flat tops - any fool knows that..........well, except one fool.....;-...

the only thing that dictates flow really is the valve itself

yes and no, if the air can get to the valve quiker then that will increase the amount of flow

sorry mate i only work on cars i dont know a thing about bikes apart from they rev to 12000 an more in some mad cases!!

if you unbolt it at both ends you can slide it up with a bit of wiggling an it just comes off well mine did, as for bolts jus get some that are the right width and arent too long long bmw will charge a fair bit more but its up to you ders no difference its just a nut an bolt, dont drive your car bef...

dont fit a 320i inlet to a 325i total waste of time also polishing it will achieve basically jack all, the air needs some turbulance to mix properly with the fuel as argos says the 320i inlet cant be opened out enough for a 325i Eh? why would you want turbulance? the idea is to get rid of turbulanc...

Fitting a 2.5 head to a 2 litre would acheive absolutely nothing. Sure, you have 2mm bigger inlet and exhaust valves but you'd drop the compression from an already miserable 8.8:1 to around 8.4:1 so you'd have the throttle response of a lawnmower - any power you'd gain from the bigger valves would ...

il find out about the tool

youd wana leave the throttle body as it is, they are already smoothed anymore and they wouldnt work properly

get a longish bar that fits inside the sleeves an push it back and forth that should free em, up kinda like a big lever

gettin the 325 manifolds the best bet

but if you ported and polised the 320 manifold it would make a difference cos the air can flow more smoothly but you have to do the lot to really get the best results

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you can get a tool which goes on the end of a drill and push it through, its kinda like a pipe cleaner

pretty much, the idea is to get as much cold air in the engine as possible

the problem with doing it the other way round is the 2.5 bottom end requires more air an faster flow for the larger capacity

an itl be more than a 10 bhp gain when its all done

ok the 320 slugs will hit the valves in a 2.5 head when u build it. It just won't work without alot of modification and all for about 10bhp just stick a 325i throttle body and inlet manifold on your 2.0 and be done with it! they wont cos its practicly the same as the 2.0 head but you work out what ...

Itl take out standard 2.5,s when its done and tuned ones depending on whats been done to em

and what have the ports go to do with it? the bigger the ports the better, more flow. do you mean the combustion chambers?? if yes 500cc isnt gona make mucn of a difference theres only 4mm difference between the bore on the B20 and B25

Why wont it be a worthwhile mod?

nah my bad i just spoke to the fella, he,s not certain it wont fit but pretty sure that it wont

Sorry for sounding like a twat but i still fink itl fit il email the guy he should know

do it mate i got one from euros and fucked it about a day after fitting it from doing a donut

Not me, the fella that designed the motor

Sorry but I cant see why, its all down that side already they wouldnt change the routing of the manifold for it being rhd, surley they'd move the colum over abit to make space for it

it does wait an see

when you seperate the coupling to change the rubber theres a little metal prong that holds it all in line it sits in the hole that the metal prong goes in

The B20 has got domed pistons, the B25 head has larger valves
Im going to put the B25 head on a B20 block jus need to find a doner

theres a little plastic collar which you need to change aswell that makes a big difference its only 30p or sumin silly

i dont see why it wouldnt fit if your in doubt contact them?

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Whos done a big six engine swap?

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