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Old 05-22-2002, 06:48 PM   #1
Gamite
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Which BMW's have Perfect 50:50 balance.

From what I've read and heard, the E36 318, E34 535 and the E39 M5 have perfect 50/50 balance, what other cars have it?
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Old 05-22-2002, 08:20 PM   #2
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I've heard the enitre E36 line is 50/50, esp 325. I've never heard of the 5ers being 50/50.

You know, I kinda wonder how the hell it's possible to have 50/50 with a fron't engine. What do you have in the back that offsets the engine and the driver? THE SPARE TIRE??? I understand how something like a Boxter or MR2 can be 50/50. Even the S2000 because the car is very short and the engine is set in very deep over the front wheels.

PS: sorry about being late with the CD bro, my writer fried and I'm waiting on Yamaha to fix it. Should be ready for pickup late this week.

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Old 05-22-2002, 08:47 PM   #3
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Don't worry bout the CD, no rush.

I forgot where I read that the 535 was perfect balance, it was in some old review of the car when it was still a new car.

I'll try to find it.


and about E36's, if the 318 was perfect balance then the other cars would have more weight in the front end since the 1.8L is a light engine wouldnt it?
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Old 05-22-2002, 09:16 PM   #4
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I have heard that almost all BMWs are near 50/50 distribution. That is why they handle so well.
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Old 05-22-2002, 10:24 PM   #5
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the new 5ers got 50/50....not sure bout the e34....btw gamite nice lookin car u got...is it like driving a boat? they look pretty dam big!
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Old 05-22-2002, 10:26 PM   #6
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Quote:
Originally posted by M3driver
I have heard that almost all BMWs are near 50/50 distribution. That is why they handle so well.
Yeah, but some are Perfect 50:50, just wondering which are.



E46_lover, thanks, when its actually not that bad, great highway car, when you put the aftermarket suspension, the car feels less like a boat. The inside size is just like an E36, but you get more leg room in the back.
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Old 05-22-2002, 10:31 PM   #7
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Quote:
Originally posted by BigD
I've heard the enitre E36 line is 50/50, esp 325. I've never heard of the 5ers being 50/50.

You know, I kinda wonder how the hell it's possible to have 50/50 with a fron't engine. What do you have in the back that offsets the engine and the driver? THE SPARE TIRE??? I understand how something like a Boxter or MR2 can be 50/50. Even the S2000 because the car is very short and the engine is set in very deep over the front wheels.

PS: sorry about being late with the CD bro, my writer fried and I'm waiting on Yamaha to fix it. Should be ready for pickup late this week.

BigD
Your actually wrong. Out of all the E36's and E30's, both the M3 E30 and 318 E36 have near perfect 50/50 weight distribution ratio which makes them perfectly neutral. The 325, 328 and M3 are actually around 60F/40R (approximately).

Other cars with perfect ratio E34 535, E39 M5. Possibly others as well.

Bryan
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Old 05-22-2002, 10:31 PM   #8
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perfect...cuz my dad was lookin at 1....green wit tan leather....except i aint too much on it for looks...the new 5ers look sexy! esp wit angel eyes.......btw wats the gas like on urs?
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Old 05-22-2002, 10:37 PM   #9
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Gas is sometimes a problem, 80L tank, 3.5 L tank = eats gas quite fast. But not THAT bad.
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Old 05-22-2002, 10:42 PM   #10
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Quote:
Originally posted by MTRD


Your actually wrong. Out of all the E36's and E30's, both the M3 E30 and 318 E36 have near perfect 50/50 weight distribution ratio which makes them perfectly neutral. The 325, 328 and M3 are actually around 60F/40R (approximately).

Other cars with perfect ratio E34 535, E39 M5. Possibly others as well.

Bryan
Actually, it's a lot closer to 50:50 for the E36 than 60/40....

They *might* be as much out as 52/48, but I'd be surprised at anything more than that.

A couple things to consider in weight balance. First of all, the engine in the E36 is BEHIND the front axle, so not all of the engine's weight will be supported solely by the front suspension.

Secondly, the driver, fuel tank, seats etc are all placed in the greenhouse so as to help balance the weight out. The E36 fuel tank is under the rear seat (not behind the rear axle), so this also diminishes the effect of the motor upfront.

Another factor is engine weight itself. It depends on which 6-cyl the 325 has; the late model E30 2.5L was roughly 100 lbs lighter than the VANOS version (94 and up) 2.5L 6-cyl.

Also, the frame itself isn't a perfect 50:50 weight balance; more frame weight and powertrain may actually be supported by the rear suspension (rear diff, driveshaft, tranny etc....) than by the front.

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Old 05-22-2002, 10:45 PM   #11
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Hrm, good points, correct me if I'm wrong, but isnt 50/50 using the driver as the mid point?
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Old 05-22-2002, 10:53 PM   #12
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Hey Pat,

If the E36 325 engine can do enough to the suspension to lower the car more than an extra inch using 318 springs I'm sure it can throw off the balance more than 52/48. The 318 (M42) engine is also located right in the mid section of rear of the engine bay, the 325, 328 or M3 engines take up the entire length of the engine bay. Correct me if I'm wrong, but I recall the M42 E35 318 has perfect ratios.

Bryan
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Old 05-22-2002, 11:10 PM   #13
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Quote:
Originally posted by Gamite


Yeah, but some are Perfect 50:50, just wondering which are.



E46_lover, thanks, when its actually not that bad, great highway car, when you put the aftermarket suspension, the car feels less like a boat. The inside size is just like an E36, but you get more leg room in the back.
well i know that the x5 is 52/48. they do tests at the driving school for the x5 that makes you balance this thing on a see-saw kind of thing
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Old 05-22-2002, 11:48 PM   #14
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Oh ok, if the driver is the pivot, then I could see some cars being 50/50 without a mid engine layout.

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Old 05-23-2002, 11:20 PM   #15
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Quote:
Originally posted by MTRD


Your actually wrong. Out of all the E36's and E30's, both the M3 E30 and 318 E36 have near perfect 50/50 weight distribution ratio which makes them perfectly neutral. The 325, 328 and M3 are actually around 60F/40R (approximately).

Other cars with perfect ratio E34 535, E39 M5. Possibly others as well.

Bryan
According to the 3-series enthusiasts guide, the 328's are 50/50
the 325's are 51/49 and the 318's are 49/51 (all e36s, i have more numbers, but these are what I remember, i have the book and can check more weight ratios later)
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