Intake swap e36 to e30
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x5driver

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Intake swap e36 to e30
« on: July 07, 2008, 11:20:38 AM »
Do I have to swap the intake manifold from a '91 m42 to drop in a '93 m42 in my e30?
I'm taking the 242k mile engine out of my '91 318is and putting in a 127k mile '93 318i.  I'm swapping the mounts, ps, a/c, ect..

1)Will the e36 engine harness plug into the e30 computer?
2)And do you have to swap the intake manifolds?

Those are my two questions. Thanks for any help.
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HMS_Tim

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Intake swap e36 to e30
« Reply #1 on: July 07, 2008, 12:11:23 PM »
Quote from: x5driver;52819
Do I have to swap the intake manifold from a '91 m42 to drop in a '93 m42 in my e30?
I'm taking the 242k mile engine out of my '91 318is and putting in a 127k mile '93 318i.  I'm swapping the mounts, ps, a/c, ect..

1)Will the e36 engine harness plug into the e30 computer?
2)And do you have to swap the intake manifolds?

Those are my two questions. Thanks for any help.


You will have to use the e30 intake.  e36 is too tall. I think you will have to use the e30 valve cover also.  Due to the velt fitting located at the rear of the e36 valve cover.  e30 is in front.  
I just had to do this myself yesterday.
Besides, you get a little more torque out of the e30 intake, which is needed anyways.

Don't know about the wiring harness.  Should just plug in... :confused: I guess??
Check out the search function.  There is more detailed info on some other threads.
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Wise Old Dog

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Intake swap e36 to e30
« Reply #2 on: July 07, 2008, 01:41:06 PM »
IIRC the oil pans are different. Maybe the pick-up tube as well.
Time to put some loc-tite on the pick-up bolts and anything else internal.
The E36 may also have the serpentine belt. Which is good if you have all the accessories.
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HMS_Tim

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Intake swap e36 to e30
« Reply #3 on: July 07, 2008, 02:07:26 PM »
Quote from: Wise Old Dog;52828
IIRC the oil pans are different. Maybe the pick-up tube as well.
Time to put some loc-tite on the pick-up bolts and anything else internal.
The E36 may also have the serpentine belt. Which is good if you have all the accessories.


Yeah! What he said.
;)
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kenika65

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Intake swap e36 to e30
« Reply #4 on: July 07, 2008, 08:36:50 PM »
Serpentine e30 that is what I need wonder if they make underdrive pulleys for the serpentine?
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1991 318is 207k+    1986 325es 60k

x5driver

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Intake swap e36 to e30
« Reply #5 on: July 07, 2008, 09:28:50 PM »
Quote from: Wise Old Dog;52828
IIRC the oil pans are different. Maybe the pick-up tube as well.
Time to put some loc-tite on the pick-up bolts and anything else internal.
The E36 may also have the serpentine belt. Which is good if you have all the accessories.


So are you saying that I need to swap the oil pan and pick-up also?
Thanks for all the help guys.
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hesgone2fast

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Intake swap e36 to e30
« Reply #6 on: July 08, 2008, 02:29:33 AM »
You will have to swap complete intake, maybe the throttle body (different position of the sensor, and different angle of vacuum feed line. There is a thread about this) oil pan, pick up, complete wiring harness.

About the serpentine belt, if you want to use it (assuming the E36 engine comes with it...b/c not all E36 had serpentine belt), you will have to bend the dipstick, as it will be in the way of the belt.
The valve cover is the same, it is different in the M44, but not on the early M42 E36.
I hope this helps!!
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HaNasich

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Intake swap e36 to e30
« Reply #7 on: July 08, 2008, 07:55:00 AM »
Quote from: HMS_Tim;52823
You will have to use the e30 intake.  e36 is too tall. I think you will have to use the e30 valve cover also.  Due to the velt fitting located at the rear of the e36 valve cover.  e30 is in front.  
I just had to do this myself yesterday.
Besides, you get a little more torque out of the e30 intake, which is needed anyways.

Don't know about the wiring harness.  Should just plug in... :confused: I guess??
Check out the search function.  There is more detailed info on some other threads.




WRONG!
you only need to swap the oil pans.
ce tut.
intake will sit just fine under the hood in the E30, valve cover will do as well.
 - check out my pictures (1990 M40 to 1996 M42 or Vladi's 1991 M40 ro 1994 M42 engines....)


Enjoy.

Ron.
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HMS_Tim

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Intake swap e36 to e30
« Reply #8 on: July 08, 2008, 11:24:25 AM »
Quote from: HaNasich;52911
WRONG!
you only need to swap the oil pans.
ce tut.
intake will sit just fine under the hood in the E30, valve cover will do as well.
 - check out my pictures (1990 M40 to 1996 M42 or Vladi's 1991 M40 ro 1994 M42 engines....)


Enjoy.

Ron.


I stand corrected...
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91318isfoundation

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Intake swap e36 to e30
« Reply #9 on: August 30, 2008, 10:10:08 PM »
any one got a write up for swapping the pick up and oil pan?>
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nelsone30

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Re:Help
« Reply #10 on: November 30, 2008, 11:35:56 AM »
Anyone can tell me if im running e36 year 96 m42 to e30 m40 can i use back the e30 m40 wiring harness?
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hesgone2fast

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Intake swap e36 to e30
« Reply #11 on: November 30, 2008, 02:36:37 PM »
Like said above, NO, you can not use the M40 wiring for an M42. Basically because aside from the block, it´s a completely different engine... 8Valves/16Valves...
The M42 engine(E30 or E36) can only go into the E30 chassis with the E30 M42 wiring harness.
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nelsone30

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Re: Thanks
« Reply #12 on: November 30, 2008, 07:51:08 PM »
Thanks for the info. In my country doesnt have m42 wiring harness for e30 so i have to use a e36 wiring harness do you have any idea bout that. And also my engine is from a auto e36 so did the DME link with the gearbox?
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hesgone2fast

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Intake swap e36 to e30
« Reply #13 on: December 01, 2008, 04:44:10 AM »
Quote from: nelsone30;61991
Thanks for the info. In my country doesnt have m42 wiring harness for e30 so i have to use a e36 wiring harness do you have any idea bout that. And also my engine is from a auto e36 so did the DME link with the gearbox?


As far as I can tell, the E36 harness is not a direct fit(I would say it wont work...)The E30 does not have knock sensors, the E36 has electric valves for vacuum operated intake and the E30 doesn´t.
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