early into late

[Wilson]

I understand there is a few things that have to be changed if you put an early m20 2.5 into a late 325i.

What things?

Thanks

[ian332isport]

Hi Wilson,

I did a bit of a write up on this ages ago. Unfortunately I don't still have a copy.

Fortunately, I believe Ant does.

Cheers,

Ian.

[Wilson]

thanks mate.. I'll PM him

[JungleGus]

could much use this.....any more info?

[Ant]

I do have Ians bible on my HD still fellas, it relates to the ECU and loom swopping about, its in Excel format so if you email me on the ant@e30zone (guess the rest ) I'll forward what I have.


hardware wise its swop the engine looms over, late front pulley,timing cover and pulse generator, swop the injector wiring over for the late type(bolts to rail), you'll need a post 88 waterpump swopped accross too, or swop in the complete colling setup from the earlier car.

If I think of more I'll post it up, Wilson,JungleGus Pms recieved, mail me fellas OK

[Wilson]

email me on the ant@e30zone (guess the rest ) I'll forward what I have.

Thanks Ant, I wont need the bible, what you've said here is enough to make my mind up not to bother!!!! Its alot of work just to have the same engine...

Thanks again for the advise

[Richy325iTouring]

isnt the same engine though
early engines are higher compression

if i wasnt thinking of the m52 lump id seriously do this
was talking to ant about it at lakeside

[Wilson]

isnt the same engine though
early engines are higher compression

Oh right.......hhmmmm, Jhonno has one for sale real near to me... http://www.e30zone.co.uk/modules.php?na ... ic&t=11793 my engines got a bit of bottom end knocking, (nothing to cry about will prob go for a while), but as this engine was cheap and especially cause it is nearby thought I'd get it and simple swap, but as above, not just a simple swap!!!!

But if I was gonna do this, then I might aswell fit the the 24v engine, or even bigger engine etc etc, and for now the car isn't really good enough to justify it!!

[Jhonno]

if you dont want to stick with late management then there are no issues...

personally as a budget spec'd motor an early lump on late management with a lightend flywheel, a zone wild chip and a bbtb would make a pukka and fast lump.. i'd be tempted to take something like that to the 'Ring..

[Wilson]

personally as a budget spec'd motor an early lump on late menagement with a lightend flywheel, a zone wild chip and a bbtb would make a pukka and fast lump.. i'd be tempted to take something like that to the 'Ring..

Are you saying that management etc doesn't have to be changed and that I could just bolt the lump in and go?

[Ant]

bolt in engine, swop the existing loom, sensor and crank pulley and sensor over , turn key and enjoy mate, do it in a day, nuts and bolts fella

throw a new cambelt @ it whist its all easy done, be silly not to M8