m30 weight gain

[BimmerScreamer]

does anyone know how much weight get added to the nose when you swap in a m30?

[BimmerScreamer]

never mind, according to jared squires. the swap only adds 57lbs

[Jean]

Depends.

In my case m10/g240 vs m30/g260 it was a difference of 540lbs vs 395lbs.





and here is a weight of m20b27 with 5speed

[george graves]

M10 = 82kg = 184 lbs
M42 = 100kg = 220 lbs
S14 = 106kg = 233 lbs
M20 = 117kg = 257 lbs
M30 = 143kg = 315 lbs
M50 = 140kg = 308 lbs
S50 = 152kg = 334 lbs

(Taken from here: http://www.unixnerd.demon.co.uk/enumber.html)

[Jonsku]

Here's weight list from www.e30.de I assume that all the ancillaries are included in these weights.

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

[Brian D]

A subject of great interest to me.

I think that the unixnerd link that George posted is the weight of the stripped long block engines (block w/internals, head w/internals, no accessories, manifolds, etc).

Jonsku's link makes sense when compared to the engines that have actually been weighed. M20 at 175 Kg is 386 pounds, now add 100 lbs for trans, fan, mounts, and some other trinkets that are on the Vorshlag engine and we're almost spot on with that weight of 495 lbs.

Likewise, an M30 at 212 Kg equals 467 lbs, which synchs nicely with Jeans' 540 lbs with trans(70 lbs) but without exhaust manifolds or some of the extra stuff that was left on the Vorshlag M20. Thanks for weighing that bad boy, Jean!

Additionally, I've been told by Paul Burke that the B35 blocks are somewhat lighter than the B34's. I don't know how much of a difference we're talking about though, I'm guessing in the neighborhood of 10-20 lbs.

So 60-80 lbs for a M30 swap seems reasonable. Everyone seems to be of the opinion that the E30 easily handles the weight gain, but I hate that it's there, on the wrong end of the car. For a street or drag race car, no biggy, but I remain unconvinced for a car that will see track use. Of course, I only do HPDE's, sooo...

[BimmerScreamer]

i think the weight is worth the power, run a carbon hood if your a weight weenie. A guy who brings his car to my shop has an s38 swapped e30 and it only sees the track, he said yeah its nose heavy but you deal with it that car is a monster

[george graves]

I find it interesting (read: annoying) that the S50 motor is heaver, but no one ever says anything about it.

But you put a m30 in and people assume you can pick up the rear of the car with one hand it's so out of balance.

[e30s52]

M10 = 82kg = 184 lbs
M42 = 100kg = 220 lbs
S14 = 106kg = 233 lbs
M20 = 117kg = 257 lbs
M30 = 143kg = 315 lbs
M50 = 140kg = 308 lbs
S50 = 152kg = 334 lbs

(Taken from here: http://www.unixnerd.demon.co.uk/enumber.html)

Engine weights are for a dry engine with no manifolds, starter motor, alternator, etc. They will vary by 2 or 3 kg for different types of fuel injection and model year. US M50 had an iron block due to sulphur problems and is much heavier than euro. Anti-pollution kit will add a few kgs to earlier US spec engines. Where you see (short) this means the weight is for a short engine with no heads or ancillaries.

[Brian D]

I find it interesting (read: annoying) that the S50 motor is heaver, but no one ever says anything about it.

But you put a m30 in and people assume you can pick up the rear of the car with one hand it's so out of balance.

A twincam swap isn't even on the radar for me, so that's irrelevant. I just hate adding weight to a car, that's all. I know that the a/c could be removed to make up the difference, but that's not realistic in Arizona.

I'm sure I'm just overthinking it, but that's all I can afford to do right now. :(

[BimmerScreamer]

I find it interesting (read: annoying) that the S50 motor is heaver, but no one ever says anything about it.

But you put a m30 in and people assume you can pick up the rear of the car with one hand it's so out of balance.

awesome, I definitely agree. Maybe its all the plastic on a m5x motor that makes it look lighter.

I can tell you I was pleasantly surprised when I lifted up my m90 head a few days ago, much lighter than I expected and no where near a twin cam head.

[drift]

I find it interesting (read: annoying) that the S50 motor is heaver, but no one ever says anything about it.

But you put a m30 in and people assume you can pick up the rear of the car with one hand it's so out of balance.

Because that's the only way they like to vent out ( after oops spending a fortune on M50, M52, S50, S52 ) ;)

[e30s52]

Because that's the only way they like to vent out ( after oops spending a fortune on M50, M52, S50, S52 ) ;)

Lol I bet I have spent less then most of you guys.

[RickSloan]

this is great information, this thread should be sticked at the top of the m30 swap section to finally put to rest the rumors

[Pinepig]

You need to add 3 ounces for the throw out bearing that was still sitting on the trunk.