BMW M5 Forum and M6 Forums banner

1 - 20 of 32 Posts

·
Moderator
Joined
·
2,941 Posts
Hello Mike,

Unlike the E28 ///M5, the M635CSI and the M6 where build on the regular E24/1 production line. I don't know the exact details, but I can look this up in die Grosse M-Kronik if you like.

I do know that the M635CSI type was only used in Europe. The rest of the world the M635CSI is known as ///M6.

Rgrds,

Raymond
 

·
Registered
Joined
·
787 Posts
But what is interesting is that the US M6 has a WBA VIN not a WBS as “all” other M cars... The 8 CSi included. So the M635csi 4valve called an M6 in the US does not have the WBS, but the 8 2valve with the WBS is not called an M... BMW is obviously not very consistent.

Carl
 

·
Registered
Joined
·
787 Posts
The M535i and the M5 where not the same car. The M535 was a M5 looking car with all the trim, but not the engine. The prefect wannabee car.:)

The M5 has a WBS VIN.

Carl
 

·
Registered
Joined
·
657 Posts
If I recall correctly in either a Bimmer magazine I have maybe a year or so old they talk about the BMW R80g/s motorcycle being the first "Gelande Strasse" all road BMW motorcycle which is now the R1200GS. They were comparing that to the M535 which was one of the first M's in the 5 series and was the fastest sedan out at the time. Then the M5 was born. I will find the article as I know I have it set aside and you guys can read it. It was a solid article.
 

·
Registered
Joined
·
53 Posts
The M535i and the M5 where not the same car. The M535 was a M5 looking car with all the trim, but not the engine. The prefect wannabee car.:)

The M5 has a WBS VIN.

Carl
It is true that the e12 M535I and e28 M5 are not the same car but both had M engines. Both are adjustments of the m88 from the M1.
 

·
Registered
Joined
·
332 Posts
It is true that the e12 M535I and e28 M5 are not the same car but both had M engines. Both are adjustments of the m88 from the M1.
The E12 M535i had a 3453cc M30 non-M engine and a WBA Chassis number
The E28 M535i had a 3430cc M30 non-M engine and a WBA Chassis number
The E28 M5 had a 3453cc S38B35 Motorsport engine and WBS chassis number
The E24 M635CSi had a 3453cc M88/3 or S38B35 Motorsport engine and WBA chassis number
The E31 850CSi had 5576cc S70B56 Motorsport engine and a WBA Chassis number
 

·
Registered
Joined
·
657 Posts
For those who get the Bimmer magazine. Look in issue #96 FEB 2011. You can also order this issue if you don't have a subscription. This has the article on the E12 M535i, R80 G/S road trip. Excellent article.
 

·
Registered
Joined
·
332 Posts
I do not believe the e12 version had the M88 engine. I had the regular euro 12 valve 6 banger. Only the e28 version had the m88 24 valve motor.
I agree, no BMW built E12's received a Motorsport engine.
 

·
Registered
Joined
·
939 Posts
The E12 M535i had a 3453cc M30 non-M engine and a WBA Chassis number
The E28 M535i had a 3430cc M30 non-M engine and a WBA Chassis number
The E28 M5 had a 3453cc S38B35 Motorsport engine and WBS chassis number
The E24 M635CSi had a 3453cc M88/3 or S38B35 Motorsport engine and WBA chassis number
The E31 850CSi had 5576cc S70B56 Motorsport engine and a WBA Chassis number
All correct except the last line:
The E31 850Csi had a WBS VIN.
 

·
Registered
Joined
·
161 Posts
bmw M635csi and M6

hello everybody


the most important is that you have a m88/3 or s38b35 under the hood. :applause:

for me is the m635csi or the m6 the same.

I always believed that the m6 was the export name (of the e24 m model)(fur US and Canada)

greatings

ruben
 

·
Registered
Joined
·
156 Posts
Hello,

like Ruben:
It is same car:

called M635csi in Europe and M6 elsewhere....:cool:
 

·
Registered
Joined
·
236 Posts
Well, the euro M635csi like the Euro M5 had a slightly different engine, 286 vs 256 HP.

Europeans got the better headers and compression, but possibly single thickness timing chain, no?

Also, lighter cars, less weatherproofing, and more likely to rust in the fenders....that's my vague recollection. I had a M6 for a while......nice Luxo cruiser.
 

·
Registered
Joined
·
409 Posts
I think the same with M635. It wasn't a M-power engine car.
It WAS an M powered engine car. But it was built before Motorsport division built the entire car. Motorsport only built the motors back in the mid 80's. The motor was a direct descendant of the M1 racing motor. The M635 was introduced in 1984 at the Frankfurt Auto show.
 

·
Registered
Joined
·
409 Posts
Well, the euro M635csi like the Euro M5 had a slightly different engine, 286 vs 256 HP.

Europeans got the better headers and compression, but possibly single thickness timing chain, no?

Also, lighter cars, less weatherproofing, and more likely to rust in the fenders....that's my vague recollection. I had a M6 for a while......nice Luxo cruiser.
The Euro version did have the higher compression, tubular stainless steel headers, and the single row cam chain and cam chain tensioners, more aggressive ECU computer mapping. It had no smog equipment whatsoever, not even EGR. The European market emphasised lighter weight and performance over luxury. The Euro M635 tipped the scales at 3300 lbs (that is what my Euro M635 weighed at the port prior to DOT/EPA cert). Each Euro car was custom specified by its potential buyer before build, and many came equipped only with manual sport seats. These cars also had the water buffalo hide option which was never offered in US cars. I have had no rust on either of the Euro M635s I have owned, but they are CA cars and do not see salt on the roads during winter.

The 1988/89 US version M6 had lower compression, cats, heavy square bumpers, back seat airconditioning, and power/motorized seats. They did only have 256 HP and weighed over 3600 lbs. They were equipped by BMW NA who optioned all the luxury choices for the car. The piston rings and dual row cam chain improved reliability, but at the expense of HP.
 
1 - 20 of 32 Posts
Top