M52 b30 stroker rebuild back on the road

[E30BeemerLad]

3.64 is a good ratio for an E30 gearbox mate, the dude with the M52 must be using the ZF gearbox from an E36

[Dezzy]

3.64 is a good ratio for an E30 gearbox mate, the dude with the M52 must be using the ZF gearbox from an E36

Beat me to it.

[magpie]

3.64 is a good ratio for an E30 gearbox mate, the dude with the M52 must be using the ZF gearbox from an E36

what box has topless got he tops out at 125 aswell with 3.73 diff.

i could do 125mph in a mineral blue 318i m40

[e30topless]

mines a dirty 6 box Mick ,

[magpie]

i see said the blind man...


so anyone used am m40 box with 3.64 diff in e30 24v land?

will be same ratio or close to an m42 i'd say,

[Cook318IS]

i used an m40 box with a 3.64 diff with my m50.

[magpie]

what was the top end cook my good man?

[DanThe]

3.64 is a good ratio for an E30 gearbox mate, the dude with the M52 must be using the ZF gearbox from an E36

Indeedy, my 3.38 with E36 328i box tops out at 130mph

[Cook318IS]

i never maxed it out mick, i think the theoretical top speed is something like 145-150 but it might be worth double checking with an online gear ratio calculator.

the 3.64 wasn't half bad at all, a good diff for decent acceleration and a top speed.

[magpie]

sounds a good bundle to me

[Cook318IS]

it will definately be useable though with an m40 box. If you did want more acceleration though its not the end of the world becuase at least you can still use it for the meantime and im sure you're used to removing diffs by now with all your fragging experience

[magpie]

i was hoping on the lightened flywheel and a chip for that.

the 3.64 is an open one so it's only a temp measure.if i like then an lsd is next so i might see if steve will sell his 3.73 lsd if i need more acceleration.

[e30topless]

my 3.37 is an open diff Mick, thinking about getting it welded though ,


I have accuired a 3.25 LSD will be using that

[Dezzy]

my 3.37 is an open diff Mick, thinking about getting it welded though ,

Stop it![/img]

[magpie]

welded diffs are shite on a daily drive

[Rav335uk]

my 3.37 is an open diff Mick, thinking about getting it welded though ,

DO IT!!!

[e30topless]

my 3.37 is an open diff Mick, thinking about getting it welded though ,

DO IT!!!

Fook that

[magpie]

just to clarify before i spend,to fit the m40 box i need a 320i prop and gear linkage.


will a 325i prop be no good as i have one of those?

[E30BeemerLad]

I'm using a 325 prop, but M42 box, not sure if the dimensions of the M40 & M42 boxes are different

[Bob_S]

m40 and m42 box are the same except m42 box has synchro on reverse.
you want 320 linkage and 325 prop the 320 is slightly shorter and needs a couple of spacers putting in.
I used an m42 box on my cars and a 3.64 diff which was good for an indicated 160mph so real world 145 to 155 somewhere?

Compacts have some good diff ratio's which are a touch longer for that motorway work. All are small cases though and from experience I chewed through small case stuff in 4-5 months

[magpie]

thanks for your input Bob

[Bob_S]

you've moved north and you've swayed to the dark side of 6cyl's, your alright i suppose ;)

if your non vanos buy dezzy's cams

[Dezzy]

Dezzys cams are long gone Bob S52's are now with our Dan awaiting the re build.

[Bob_S]

ahh cool didnt know you'd sold them.
Going to see Daniel tomorrow to get some fresh scrap said he'd sent the block off to be "chemically cleaned" in his accent

[Dezzy]

It's back mate. Pics on my thread.

Can't wait to get it back now.

[magpie]

one step @ a time Bob ffs!

[appletree]

I'm not sure that the M40 and M42 boxes are the same rix313 had some real trouble getting his box and propshaft to fit and then found out it was an M40 box not an M42 and had to buy a new box.

I'll see if I can find it on his thread

[Dezzy]

M42 box is slightly bigger than the M40
M42 box = 325 prop
M40 box = 320 prop

I had an M40 and 320 prop combo and it was perfect with a 320 gearselector bracket

[magpie]

320i prop and full 320i linkage is now ordered,cheers lads

[Dezzy]

Glad your sorted mate.

[leeparkes]

Any updates Mick?

[magpie]

only this lee,






some council activity courtesy of sweep

got the 12 mth mot so sorned at the end of month for a refurb

[leeparkes]

[Felix79]

Scorpion LeMans?

[magpie]

Scorpion LeMans?

not quite but similar