4 speed Automatic 318i 8v to 5 speed StepTronic 318IS DOHC 16v Swap questions!! - BMW Forum

Kaantjee · 10-18-2009, 06:46 PM

Good evening ladies and gentleman.

I'm new on this forum, and have a couple of questions.

I have a E36 BMW 318i 8v. With an 4 speed Automatic gearbox.
On the way home i blow up my gasket, and short after it (i drove further because i wanted a 16v swap), i screwed up my gearbox.

Now i have a '94 318i engine i think a M42? And an GM 4 speed gearbox.
And i have a M44 318IS 16v DOHC Engine (for the swap)

I know that the 6 cilinders have 5 speed gearboxes (Automatic), so i want to swap direct with the engine this kind of gearbox.

So my questions are:
What do i need to get the engine working and will the 5 speed auto gearbox of an 6 cilinder engine mount directly on the IS engine without problems?
And will i need both ECU's?
Or can i use my original ECU's (Engine and Gearbox)?
And witch auto transmisions can bolt on my m44 engine? Because i want to make it a steptronic.
Can a 5HP18 bolt on my M44 engine and can it run with the old gearbox ecu?
And is a 8v to 16v swap easy? And what will i all need to change to run it?

thanks,
Kaantjee.

Ps. Please dont tell me to mount manual gearbox, because i want it to keep automatic.

Ps2, i'm sorry if my english is not good, im dutch

Torque · 10-19-2009, 04:07 PM

I believe the gearbox from a 6 cylinder will bolt up to a 4 cylinder - they use the same bell housing; will probably need the proper computer to run it.

As for the 5hp18; it should work, but just be careful what 5hp18 it is; I know there was a version fitted to the 5 series V8s too, and I'm not really entirely sure that that one will bolt up. Find one from a 6 cylinder.

Kaantjee · 10-20-2009, 05:31 AM

Ahaa, so the 5hp18 ZF Series gearbox from a 6 cilinder will fit on a m44

And can it run on my stock wiring and ECU?

And if i mount the engine with the transmision, can the engine start on the stock wiring and ecu? Or do i need a M44 ECU/wiring. I got a M43 now.

Thanks!

marti5 · 10-20-2009, 05:37 AM

I would say the ECU wiring will be ok although not 100% certain, you will deffo need the EGS from for the new box.....as for the V8 box I think its 5hp 24

Kaantjee · 10-20-2009, 05:40 AM

Quote:

Originally Posted by marti5

I would say the ECU wiring will be ok although not 100% certain, you will deffo need the EGS from for the new box.....as for the V8 box I think its 5hp 24

What exactly is a deffo and EGS..? (I'm sorry, but my english is not 100%

)

And i want it to make it a Steptronic, i know what i need for it, and i know that i can plug and play it in this kind of gearbox..

marti5 · 10-20-2009, 06:16 AM

The EGS ( Electronic gearbox system ) basically the gearbox ECU, here's one:

TRANSMISSION COMPUTER BMW 318I 1993 1994:eBay Motors (item 170393971232 end time Nov-11-09 17:51:14 PST)

Deffo = definitely.........sorry I use that all the time.

coolvegase34 · 10-20-2009, 07:34 AM

Why not find a decent 2.5 liter to put in it if you are going to go through the trouble of doing a swap. Much better performance in a light 318.

Torque · 10-20-2009, 07:41 AM

Quote:

Originally Posted by coolvegase34

Why not find a decent 2.5 liter to put in it if you are going to go through the trouble of doing a swap. Much better performance in a light 318.

In most (if not all) countries in Europe, cars are taxed based on displacement; that and the 1.8 is better on gas ... could be the reason he doesn't want a 2.5

Marti, I believe e34 530i v8 and maybe 540i (not sure on the latter) came with a 5hp18 box.

marti5 · 10-20-2009, 08:36 AM

Torque , yes I think your right the 540 was the 5hp 24 ZF box.

Kaantjee · 10-20-2009, 09:57 AM

Quote:

Originally Posted by coolvegase34

Why not find a decent 2.5 liter to put in it if you are going to go through the trouble of doing a swap. Much better performance in a light 318.

I allready got an 323i Full factory M-Tech, with a 2.5 Liter engine..

Quote:

Originally Posted by Torque

In most (if not all) countries in Europe, cars are taxed based on displacement; that and the 1.8 is better on gas ... could be the reason he doesn't want a 2.5

Marti, I believe e34 530i v8 and maybe 540i (not sure on the latter) came with a 5hp18 box.

No, the taxes are about the weight of the car.

Quote:

Originally Posted by marti5

The EGS ( Electronic gearbox system ) basically the gearbox ECU, here's one:

TRANSMISSION COMPUTER BMW 318I 1993 1994:eBay Motors (item 170393971232 end time Nov-11-09 17:51:14 PST)

Deffo = definitely.........sorry I use that all the time.

Ahh. Ok. I will search that to. Can i leave the stock wires, or do i need that to?

And about deffo, haha.. now i learend something new again

marti5 · 10-20-2009, 10:16 AM

You will have to see if the stock wires/connectors marry up with the new EGS, the ones that go to the box Im not sure, if I were you I would get the other harness, to be on the safe side,but see if the EGS marries up 1st.

CAR TAX:
Our cars in the UK are based on emissions, age of the car and put in to groups, I pay £195 a year for my 735i V8 so pretty cheap compared to most of the civilised world, as I know a friend in Eire (sothern Ireland) pays €1,800 and if I had my car in Belgium I would be looking at around €2,600.There is one small new car we have some hyundai thing I think which costs approx £26.00 a year....mind you the new 7series from 2002 onwards you pay £400.

Kaantjee · 10-20-2009, 03:30 PM

Quote:

Originally Posted by marti5

You will have to see if the stock wires/connectors marry up with the new EGS, the ones that go to the box Im not sure, if I were you I would get the other harness, to be on the safe side,but see if the EGS marries up 1st.

CAR TAX:
Our cars in the UK are based on emissions, age of the car and put in to groups, I pay £195 a year for my 735i V8 so pretty cheap compared to most of the civilised world, as I know a friend in Eire (sothern Ireland) pays €1,800 and if I had my car in Belgium I would be looking at around €2,600.There is one small new car we have some hyundai thing I think which costs approx £26.00 a year....mind you the new 7series from 2002 onwards you pay £400.

Aight thanks,

And what about the 1.8 8v to 1.9 16v swap? What do i need to change for that?

and about the car tax here, its about the weight of the car, and if the car is 25years or older than you dont have to pay it anymore.
PLUS if you drive a diesel you will have to pay like twice so much.
The Toyota Prius Hybride is tax free, but the Honda Civic Hybride is almost free.

I pay for my Bimmer +/- 100euro's per 3 months. (thats about 50 dollars a month).

qualicas · 10-30-2009, 12:25 AM

The M42 engine is a 16 valve engine. I really doubt that you will notice any performance increase in the 0.1 litre displacement increase. I'd just rebuild the M42 that way you won't have wiring problems etc. It does seem that the M42 is more common than the M44 probably built for more years.

Torque · 10-30-2009, 06:41 AM

He's not swapping m42>m44 (he doesn't even have a m42 in there); he's swapping m40/m43>m44; 25 extra hp is hardly "nothing".

qualicas · 10-30-2009, 08:59 AM

Torque
The OP said he thought it was an M42 with 8v. So That was why my comment.
Excuse my ignorance, then I assume an M40/M43 is a 1.8 with 8v??
In that case what model came with that engine?