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BMW Dudes: How to classify BMWs in (limited) dataset?


takjak2
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I'm working on a chunk of Champcar data.

I have the year for every car.

Some say 318, some say 318 is, some say e36

 

I don't know any details beyond what is already in the data (year and something for model)

 

What's the most accurate way for me to characterize these cars?

Can every car from 19XX-YY be said to be an E30, E36, etc?

 

Attached is a sample and a piece of the data I'm working with.

 

1985 BMW 325
1985 BMW 325e
1985 BMW 325e
1985 BMW 735i
1985 BMW E30 325I
1986 BMW 325
1986 BMW 325
1987 BMW 325
1987 BMW 325 E
1987 BMW 325e
1987 BMW 325i
1987 BMW 325is
1987 BMW 635csi
1987 BMW E30
1987 BMW E30 325IS
1987 BMW M20B25
1987 BMW  
1987 BMW  
1988 BMW 320
1988 BMW 325 IS
1988 BMW 325i
1990 BMW 325is
1990 BMW E30
1991 BMW 325
1991 BMW 318 Is
1991 BMW 318is
1991 BMW 325i
1991 BMW 325i
1995 BMW 325is
1995 BMW 325is
1995 BMW 325is
1995 BMW 525i
1995 BMW e34
1995 BMW e36
1995 BMW E36 325
1996 BMW 325
1996 BMW 328i
1996 BMW 328is
1996 BMW E36
1997 BMW 328
1997 BMW 328is
1998 BMW 318CI
1998 BMW 318ti
1998 BMW M3
1999 BMW 323i e46
1999 BMW 328i
1999 BMW E46
2000 BMW 325
2001 BMW 330ci
  BMW 325

 

 

BMWs.xls

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Utilize wiki for some help.

 

I would recommend you categorize things with:

 

Year  -  BMWs "Car Code"  -  Model  -  Engine Code

 

Something like:  1987 E30 325is M20B25

 

 

Year is obvious

 

BMW "car code" would be the ...E30, E36, E34, E39, E46 ...   Wiki a big help here if you are new to BMWs.  Its beemer geek speak.

 

Model would be the 318is, 325es, 540i, etc. Just indicates which basic configuration of the vehicle is, with the I, E, IS, ES, IX after it indicating the grade level / type / "option packages"

 

Engine Code would be things like M20B25.   code gives some details on the engine.  Where the ":M20" = the engine series (in this case, the mid-80s -> mid 90s straight 6), "B25" = 2.5L displacement.  TU (some engines have this) indicates 'technical update'.

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Sir, I will not abide someone attempting to demean the Bavarian marque.  

 

 


Just kidding, I'll bite.

 

For e30s, follow this guide:

  • 318i (1984-1985 using the M10 (~100hp), then 1991 using the M42 (~130hp))
  • 318is (1991 only) ~130hp
  • 325, 325e and 325es ~130hp and crappy R&P, but decent torque
  • 325i, 325is (1987-1991 only) ~168hp and all the best
  • 325ix (1988-1991 only)

Generally speaking, "S" following the model means 2 door with the limited slip differential.  That said, the LSD was offered as an option for all models, so it is possible that 4 door models had the LSD option ticked.  

 

For e36s:

1992-1995 318i/is use the M42, 325i/is use the M50B25.  All the 325 models came with the factory installed LSD

1996-1999 318i/is use the M44 (basically the same power), 323i/is use the M52B25 (~168hp, 180 tq) 328i/is use the M52B28 (~190hp, 210tq).  These were NEVER offered with a LSD.  The 328s have a very tall R&P.

 

 

Edited by jmabarone
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I don't have engine data on any of these cars. What you see is an example of everything I have.

 

Yes, I can read wikipedia.

 

Will anyone get upset if I say all 1984 to 1991 are E30, unless the data already says otherwise (E34 or 5 series)

92-98 is all E36?

Everything after that (6 out of 196 cars) are E46?

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With BMWs it’s a pretty safe bet that they aren’t swapped. I know of only a few swapped BMWs, all e30s...

-junk in the trunk

-pbr lite

-that one from Canada which is for sale

-the white one at Road America this fall

-the black EC one in central region, #326

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5 hours ago, enginerd said:

With BMWs it’s a pretty safe bet that they aren’t swapped. I know of only a few swapped BMWs, all e30s...

-junk in the trunk

-pbr lite

-that one from Canada which is for sale

-the white one at Road America this fall

-the black EC one in central region, #326

 

The one from Canadia is “M brothers racing”

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BMW usually has some overlap, during a platform change too. I believe there were both E30 and E36 in 1991 or 2 and there were both E36 and E46 in 1999. The explanation I was given, is that the Europeans don't really do model years (it's an American thing) they identify cars by production date. Volkswagen did it with the MK3,4,5 as well. Let me tell you how much fun that is as a parts guy.

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Unless Column D says otherwise,

 

I would say its safe to call anything 84-91 an E30

I would say its safe to call anything 92-98 an E36

I would say its safe to call anything 99-05 an E46

 

 

Anything else is going to give you tons of headaches.

I think it would be safe to lump the cars called "325e" in with the rest of the e30. There is a HIGH likelihood they are swapped.

I think it would be safe to lump the cars called "318i" in with the rest of the e30.  There is a HIGH likelihood they are swapped.

 

"IS" vs "I" has absolutely zero difference as far as chumpcar is concerned.  That is to say, a 1991 318i and a 1991 318is are literally the same car as far as we are concerned.

 

 

For e36 you MAY want to differentiate the 92-95 cars as 325. and the 96-98 cars as 328 since the points are different, and you can assume they are not swapped.

 

 

 

 

 

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2 hours ago, Huggy said:

I think it would be safe to lump the cars called "318i" in with the rest of the e30.  There is a HIGH likelihood they are swapped.

** in the 198X to 1991 year range.

 

There are at least 2 e36 318i which run in the central region with stock engine. Both are in the top 75, Spartan Racing and TRMotorsports

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