325i reshell + m50

[Scrotty]

now if anyone says search, i have and the info is like a jigsaw puzzle
basicaly im sourcing a mint 318 and wishing to reshell a rusty mot failed 325sport.....keeping drivtrain from 318 as spare for next year pbmw championship.
now im seriously considering a m50b25 due to being cheap and as the lots gotta come out, why not?
basicaly whats the best doner....late e34 525i or early e36 325i?
which diff is best used?can a 525iS diff be used if not then what lsd will fit with correct ratio?
gearbox?prop?linkage
rad/abs pump/brakes?
the engine mounts for e30m50 are the same in the e34 arnt they, as the e34s were made with both m20 and m50?
only want to use one donor car and have to source as little 'extra' parts as possible....soo which is the most usful donor?dont mind having to break a 325isport as well for rar discs and interior, but i suppose the lsd will be wrong ratio?
my rebate is finaly here and so im finaly going to start the e30 project

hope you peeps can set me straight on these few things
scott

[brian325i]

basicaly whats the best doner....late e34 525i or early e36 325i?
which diff is best used?can a 525iS diff be used if not then what lsd will fit with correct ratio?
gearbox?prop?linkage
rad/abs pump/brakes?
the engine mounts for e30m50 are the same in the e34 arnt they, as the e34s were made with both m20 and m50?
only want to use one donor car and have to source as little 'extra' parts as possible....soo which is the most usful donor?dont mind having to break a 325isport as well for rar discs and interior, but i suppose the lsd will be wrong ratio?

scott

E34 525->dont have to change sump and better chance it has had a "nice" life to date
gearbox mount->e21
e36alloy engine mount
e28m5 rubber mounts
mkII golf servo with standard cylinder..im nearly finished but if you have any install questions pm me and i will give you any advice i can from my experience

i wont answer diff question as there is better option thabn what i am doing but i not 100% what it is
i will be using standard e30 318is rad

[DanThe]

Best diff to use is from an E30 M3.
Another servo option is the unit from a Clio with the master cylinder left on, straight swap no faffing, brakes as good as standard.
E34 would be the best donor to use, preferably an auto as it would of had a lot less of the thrash treatment.
The best rad to use is from the E36 M3.
E34 525 or E36 325 manual box.
Prop depends on the output flange of the gearbox you get, the smaller flange can be coupled to an M20 prop.
E36 325 linkages.
E36 323/328 tubular manifolds are easiest to modify for the E30 engine bay.
As Brian stated, E21 gearbox mounts, E36 325 alloy engine mount arms, E28 M5 engine mount rubbers.

P.S. I have the alloy arms and manifolds you will need

[e30world]

hi good fun dnt verget box of painkiller

[tristan325]

I have question regarding this, can I use the gearbox and diff fitted to my 87 sport with an M50?

[eko]

I have question regarding this, can I use the gearbox and diff fitted to my 87 sport with an M50?

Pretty sure a few guys have gone this route.
A few have definately done it with the M42(iS) box.
Think its just a case of getting the flywheel machined?
Using the original E30 box also means you can retain the standard(more common) E30 diffs available!

[tristan325]

Cheers Tony.

[Scrotty]

so if one use a 325isport g'box...obviously no need to source linkage and mounts, do you have to get the flywheel machined or is there another that one could use? dan how much for arms and fannymould?

[DanThe]

M20 flywheel is a good choise IMO, single mass and lighter.

Arms and fannymoulds £70 posted mate

[Scrotty]

got any piccys? 99% have that off you sir! itl fit M25B25 yes?
also...is it worth going for the single vanos M50 or non vanos?
and if i use 325sport diff and box, just that mean the prop remains unchanged?

going to view a cleeean black e30 tomorrow with 12months mot and minor battle wounds.....with anyluck ill have my victim

[DanThe]

I will post a couple up in the morning mate

[Scrotty]

ok cheers
ill confirm in the morning dude, iv just come accross a complete 335i conversion up the road from me....given me dirty thoughts not the m50 im after but complete setup for sale 10mins away, no headache sourcing parts so poping round in the morning to have a look
let you know tomorrow though

[Scrotty]

not going to see the 335i till tonight now... your manifolds dan....is it just the two 3:1 parts or the 2:1 downpipe too?and does it have the lamba sensor hole?

[DanThe]

Sensor holes are included in the price, although the sensors themselves are an extra £20





Best solution for the frontpipe is to use one from a 3 piece E30 system so you dont need to modify the centre or rear sections.

You know what the arms are like yes?

[Scrotty]

ahaa
well im thinking of julians touring...needs lamba hole welded into manifold (buy yours less hassle) and also needs a servo for clearance....maybe you have one?but i guess postage would be crazy, breakers yard jobbie i guess!
he says he used e36 non vanos with g'box..and used standard gearbox mounts??is that ok? prop is e30/e34 custom and he says clutch was changed along with release bearing and slave cylinder

i also have a victim....black 320 e30 with 12months mot, local, cheap and now mine ...either get that M30 conversion(with m3 g'box and diff) or just going to buy the M50 'n swap all the bits over, sell the touring as a 320 (good engine).....havent made my mind up yet

whats the weight difference between a m50 and m20b20? i know the m30 weighs about the same as titanic lol

scrotem

[DanThe]

Not a lot of difference between M20 and M50, 20 kg max. I saw Julians tourer on Sunday, he has the standard E34 cast manifolds modified to fit so some tubular would be much nicer, lighter aswell

I used a Clio servo and master, dead easy, no spacers needed, connects straight up to rod behind glovebox no messing. Brakes on mine are as good as standard now my ABS is sorted.

[Scrotty]

he did say that the early lambas wont fit the later 12mm holes in tubular fannymoulds
thanks for the offer eitherway, bought that 335i conversion as its up the road and everything there...HOPFULLY will save some assaches

[DanThe]

Of course they wont fit, they are 14mm threads!

The sensors are the same though, as are the signals they send out to the ECU.

[e30Alex]

sorry for hijacking, clio brakes??enlighten me!any particular model etc???

[DanThe]

The plastic winged variety, the servo is made by Bosch so dont let the "French crap" slogan bother you

[andye30nut]

thats usefull

[DanThe]

Need any parts?