Author Topic: What is the curb weight of a 318i vs.318is? (Read 38142 times)

pakman84 · « **on:** August 28, 2009, 01:31:06 PM »

Looking for this info from an E30....Also, the vehicle will have a 5 speed....Why is there a weight difference? The sport seats?

visionracingdevelopments · « **Reply #1 on:** September 02, 2009, 05:41:58 AM »

The iS is heavier because it has a galvernised chassis, not because it has different seats.

roundel318 · « **Reply #2 on:** September 02, 2009, 06:39:57 AM »

what does this difference in the chassis produce (other than the weight difference?)

visionracingdevelopments · « **Reply #3 on:** September 02, 2009, 02:55:16 PM »

Less prone to rust from what I can gather not sure what else.

nigel · « **Reply #4 on:** September 02, 2009, 10:32:13 PM »

why didn't they galvanize the rest of the body bits while they were at it? all my wheel wells are rotting out

dkbmxer002 · « **Reply #5 on:** September 06, 2009, 09:51:07 PM »

Quote from: nigel;77808

why didn't they galvanize the rest of the body bits while they were at it? all my wheel wells are rotting out

seriously, my chassis is fine but the entire rest of the underside has rust to hell and back...

BraveUlysses · « **Reply #6 on:** September 08, 2009, 02:04:16 PM »

Quote from: visionracingdevelopments;77751

The iS is heavier because it has a galvernised chassis, not because it has different seats.

lol wut

roundel318 · « **Reply #7 on:** September 08, 2009, 11:15:42 PM »

i was trying to put that together too

Jimmy Lewis · « **Reply #8 on:** September 09, 2009, 08:32:46 AM »

Quote from: visionracingdevelopments;77751

The iS is heavier because it has a galvernised chassis, not because it has different seats.

Uh no.

gumby4mayor · « **Reply #9 on:** September 09, 2009, 01:55:49 PM »

my 91 325is w/sunroof weighed in at 3560. stock without driver and low on fuel.

tjts1 · « **Reply #10 on:** September 09, 2009, 02:29:32 PM »

Quote from: pakman84;77556

What is the curb weight of a 318i vs.318is?

Curb weight:
2657 lbs (318i)
2602 lbs (318is)
2867 lbs (318iC)
http://www.strictlyeta.net/technical/specifications2.html

Quote from: visionracingdevelopments;77751

The iS is heavier because it has a galvernised chassis, not because it has different seats.

So you're saying BMW only galvanized 2 door E30s, not 4 doors? What?

Quote from: gumby4mayor;78152

my 91 325is w/sunroof weighed in at 3560. stock without driver and low on fuel.

You're about 800lb off.

stangimon · « **Reply #11 on:** October 23, 2009, 10:02:56 PM »

Whys the convertible heavier?

xwill112x · « **Reply #12 on:** October 26, 2009, 01:43:16 PM »

chassis bracing for the vert bumped the weight up a bit.

tony92ic · « **Reply #13 on:** October 30, 2009, 04:08:57 PM »

Not just the extra chassis bracing, but nearly all convertibles are heavier, because the framing in the tops is very heavy. and if you have an electric top, (which a 318 generally doesn't) its even heavier yet with two motors to run it. However you can put the top down and lower the center of gravity a bit.

I believe the "i" is heavier than the "is" because its a 4 door and the extra door jamb, window motors etc add a little bit of weight.

DesktopDave · « **Reply #14 on:** October 30, 2009, 05:21:48 PM »

I've heard that the facelift e30s are heavier that the earlier models too. Can't be the airbag adding all that weight though...is it more sound deadening? I'd figure that the sedan is slightly heavier from the rear door hardware, but it can't be that much. I've been tempted by the 'vert, but that 300+ pound penalty keeps me away.

I thought the e36 was the first galvanized 3-series BMW? My e34 is galvanized & I'll bet the e38s are too.

I've seen enough of the newer cars rotting away but it's better than nothing.