Added Weight (engine conversion)

[MrBenn]

200kg Hanging scales - £26

I've just ordered a set of these off ebay, as I've also been wondering how accurate the weights online are.....Soon find out

[Jhonno]

As a rough guide with weights ive used for posting in the past, M52 alloy block is 20kg, crank is 25kg, full cylinder head is 30kg, add another 10kg for rods/pistons, sump/oil pump etc and its still only 85kg!

Where are people getting these laughable figures from? Whoever typed them up needs strangling with his mouse cable!

maybe they're fully dressed weights, inc flywheel, clutch, manifolds, alternator etc?

Plus the box and engine crane used to put them in?

I keep meaning to weigh mine! Need to find a local weigh bridge..

[DanThe]

I keep meaning to weigh mine! Need to find a local weigh bridge..

Builders merchant

[penton08]

i had my car weighed yesterday. 1320kg and thats a fully laden tech 2 kitted car on burger kings, with leather and a full tank of fuel, and a s50 hanging out the front.

[Motorhole]

Could go for an alloy V8! Lots of litres for not much weight. Chevy LS1 conversion is getting popular (5.7 litres and 350bhp upwards for about the same kg as an M20) and a few guys are beginning to use Lexus 1UZ V8s.

[Dave_M3]

i had my car weighed yesterday. 1320kg and thats a fully laden tech 2 kitted car on burger kings, with leather and a full tank of fuel, and a s50 hanging out the front.

I wouldn't be complaining...

It's still 216bhp/tonne... nearly 30 more than it could manage in the E36

[jaistanley]

I expect mine to be about 1250 to 1300.. About the same as nathans but with no tech 2 kit, no subs, leather etc.

I recon if thats the case Dan's should be 1230-1280 as a guestimate.

I dont have the time to clean/fix oil leaks/fit new steering rack/sort stereo out, let alone weigh the bugger!

Jai

[Luca318is]

reading on the net an M42 is about 100kg, an M20 is 117, M30 140 and an S50 (iron) is 150kg... obviously gearboxes are also heavier due the bigger engine...

however i think that an M30 can be lightened about 20kg by removing A/C and idle valve an with a lightwightened flywheel

[DanThe]

Its a lot less hassle than all of those jobs Jai, drive to bridge get out read display, get back in car and carry on journey

[gareth]

reading on the net an M42 is about 100kg, an M20 is 117, M30 140 and an S50 (iron) is 150kg... obviously gearboxes are also heavier due the bigger engine...

however i think that an M30 can be lightened about 20kg by removing A/C and idle valve an with a lightwightened flywheel

i doubt anyone has a aircon equipped M30 in a E30 as the pulley usually needs to be butchered off to get room for the rad.

[e301988325i]

Sorry to go off topic, but that's a cracking picture, what's the spec on the wheels, colour, who did them etc. They look great.

I guess the S50 conversions will always be heavier, due to the power requiring stronger transmission, bigger brakes and a bigger cooling system.

[Dave_M3]

My M42 may only weigh a 100kg but will all the other fecking bits like the medium case diff, E46 M3 gearbox and other bits and pieces I doubt it'll be much behind and S50ed E30 by the end of it...

Although at least the heaviest parts of the car will be between the four wheels rather than hanging out over the front of them or all around 4 corners if it was a 6 pot or Tec 2 kitted car

[leeparkes]

Sorry to go off topic, but that's a cracking picture, what's the spec on the wheels, colour, who did them etc. They look great.

I guess the S50 conversions will always be heavier, due to the power requiring stronger transmission, bigger brakes and a bigger cooling system.

There 15"x7j BBS Mahle's ET13, usually found on E21's and getting quite rare now especially in 15".
Centre's are painted Gunmetal and the lips are polished like a mirror (sometimes)

More pics here http://www.e30zone.net/modules.php?name ... c&t=136329

[Luca318is]

reading on the net an M42 is about 100kg, an M20 is 117, M30 140 and an S50 (iron) is 150kg... obviously gearboxes are also heavier due the bigger engine...

however i think that an M30 can be lightened about 20kg by removing A/C and idle valve an with a lightwightened flywheel

i doubt anyone has a aircon equipped M30 in a E30 as the pulley usually needs to be butchered off to get room for the rad.

oh yes that's sure, i was talking about the engine weight founded on the net

[gareth]

i doubt the engine weight will include the aircon pump TBH as it's optional

[MrBenn]

I have these bare engine weights:

M40B16 132kg
M20B27 175kg
M52B28 170kg
M50B25 198kg
M60B40 210kg
M30B35 212kg
M102 225kg
S38B36 232kg
M70B50 250kg

SR20DET 95kg

BMW engines = anchors

Well Theo wasn't far off.

We borrowed a set of very expensive crane scales over the weekend.

M50B25 - 170kg's - No oil, no exhaust manifolds or wiring loom. (didn't have a gearbox to hand or we would have weighed it too)

S50B32 - 271kg's!!! - Weighed with gearbox, exhaust manifolds etc.

When the m20 comes out we'll weigh that too.

Alex

[Theo]

Interesting stuff. Don't let Dan read that though - he'll be very upset.

Here's a rice powerplant as a comparison

[MrBenn]

Nick had already started taking the m50 apart so we just stacked everything we could find back on the top.

[MrBenn]

Interesting stuff. Don't let Dan read that though - he'll be very upset.

Here's a rice powerplant as a comparison

Thats more like it! Thats about the same weight as the S14 isn't it?

Looks like your having fun in it judging from your avatar!
Whats the power?

Alex

[Theo]

Looks like the M50 has the loom attached along with a load of other bits, so that's actually not too bad at all.

[MrBenn]

Looks like the M50 has the loom attached along with a load of other bits, so that's actually not too bad at all.

Its got the injector rail and some of the loom but not all. Only other parts missing would be the clutch/flywheel and the exhaust manifolds.

[DanThe]

M50 gearbox is about 40kg I reckon, 328i dual mass and clutch is 16kg

Think I will get the M52 weighed tomorrow

[MrBenn]

M50 gearbox is about 40kg I reckon, 328i dual mass and clutch is 16kg

Think I will get the M52 weighed tomorrow

Please do Dan. If poss can you get the weight of a box too, would like to compare it to an m20.

[DanThe]

Yeah ive got a few box's
Ive got some very accurate digital scales but they only go up to 50kg, the short engine will have to go on the argos bathroom scales

[MrBenn]

For those interested. We had both an m50 and m52 engines here,so we took them completely apart and weighed just the blocks.

M50 block - 46.8kg's
M52 block - 22.2kg's

Alex

ps. Dan, if you can weigh a m50/m52 box that would be great, as we don't currently have one here.