Turbo M42

[Richard Fitzwell]

So i bought the motor out of the graffiti e30 and its on its way into my car. Trying to talk as little as possible and post as many pictures as i can.

Block

Factory crank (balanced out polished)
Arrow Precision H beam rods with ARP Hardware (all balanced)
Custom pistons 85mm dia (drop com down to 8.5:1)
MLS Head Gasket (.070)
ARP head studs
Final Compression 8.0:1

Head

M42 Titanium Valve Retainers (7mm)
One piece stainless steel valves (+1mm Oversize)
High Performance Larger valve guides (+1 outside dia and inside dia)
VAC High Performance BMW Valve Springs(H-11 Alloy)
High Performance Shims
Hardened Valve Locks
Factory Lifters
Factory cams

[Richard Fitzwell]

Clutch and flywheel shipped friday, only took two months, so when it gets here ill be stabbing it in. hopefully i get it this week, the girlfriends leaving town for a week so itll give me and the car some alone time ;) intercooler and all that shit should be on the way too.

[Son_of_Man]

subscribed.

what pistons did you go with? what are your HP/tq goals?

[Dj Buttchug]

oh hai

[Richard Fitzwell]

subscribed.

what pistons did you go with? what are your HP/tq goals?

Couldnt tell you what exact pistons they are. Didnt build the motor, bought it (i cheated).

Clutch and fw came in! Didnt come with a pilot bearing so im overnighting one. motor will be in the car this weekend.

Old


New


:D Whole assembly weights 26.4lbs

[Richard Fitzwell]

So were trying to bolt up the tranny and it will not scoot up to where it should. Pull the tranny off, look inside and there scratches from where the clutch was stopping it from moving. They sent me a clutch for a 325.... so. m42 turbo just turned into m42 turbo getrag 260. SHIT JUST GOT REAL!!

[Richard Fitzwell]

Clutch slave cylinder is the same on both the g240 and g260, right? can someone verify this?

[Hey_You]

I know the clutch slave for an early 318i with early g240 is the same as an e28 528e (m20b27 with g260). So most likely they are the same for late g240. However...you could always go to realoem.com and check part numbers for both vehicles

[Richard Fitzwell]

Thanks!


Bolted up to the g260. The four big bolts lined right up but the smaller bolts on the bottom part of the tranny didnt. had to drill holes. ill get pictures when i can.



Next is getting meaasurments on how much i need to chop off the driveshaft

[ForcedFirebird]

Thanks!


Bolted up to the g260. The four big bolts lined right up but the smaller bolts on the bottom part of the tranny didnt. had to drill holes. ill get pictures when i can.



Next is getting meaasurments on how much i need to chop off the driveshaft

I'm glad someone realizes there is not correct bolt-in D/S for the m42/G260. I have about 10 various D/S's at the shop and none of them fit when my friend's g240 asploded. All over the 'net people said use the 325i shaft, but the splines engaged about 1/4"...

Looks like a promising build.

[Richard Fitzwell]

Gauge came in yesterday :)

[jintermont]

i must have that gauge...
i really want to turbo my m42 i just have a bit to learn obviously.
props on a good build

[Richard Fitzwell]

Not really an update. just some pictures i took on my phone.

Jb flywheel




And tucked away till next weekend

[Ant_e30]

nice work. may i ask about the origins of that gauge? i'm keen for one for my engine swap!

[Richard Fitzwell]

You can buy a gauge here. Justrack does amazing work.