BMW E30 M3 - S85 DCT [RNGTOY]

[e21Mark]

Any progress?

[s62]

e21Mark said:

Any progress?

Moving along at a snails pace....

Sourced a bank2 head from the US. Need to get the rest of the engine parts from Denmark to Iceland.

And.... add a few hours to each day so I have time for this!

[jcolley]

I have quite a few S85 parts as well if you need anything, but also in the US. And my good friend is the largest S85 parts guy/rebuilder in the world.

Regarding the DCT, I absolutely think it's possible, and I'm not even sure how much would be different for the software. Much of the logic which controls shifting the transmission resides in the stock DME. Both the mss60 and mss65 share identical map structures for the this area, so if you're using the stock DME, creating a tune file which applies the E92 M3's logic into the S85's DME would be quite simple.

Are you planning to use the mss65 and the OEM DCT module?

[andygtt]

This seems like a good opportunity for me to ask a technical question.

My M5 got flood damaged by an independent over here (they left the fuse box cover off) and my ecu for engine as well as the box were destroyed... I had them replaced with second hand items along with the loom.

However it seems we can't get the new second hand ecu programmed for the car and I'm being told I have to buy a brand new ecu at big money... I'm not going to spend it as I have spent a load to get this far so I will break the car instead (I have a use for the engine)... unless I can find someone who can 'wipe' the ecu or get it programmed to my car, seem someone on here may have an idea who to speak to?

It was all bought legitimately btw.. i have all my old damaged ecu's etc

[jcolley]

andygtt said:

This seems like a good opportunity for me to ask a technical question.

My M5 got flood damaged by an independent over here (they left the fuse box cover off) and my ecu for engine as well as the box were destroyed... I had them replaced with second hand items along with the loom.

However it seems we can't get the new second hand ecu programmed for the car and I'm being told I have to buy a brand new ecu at big money... I'm not going to spend it as I have spent a load to get this far so I will break the car instead (I have a use for the engine)... unless I can find someone who can 'wipe' the ecu or get it programmed to my car, seem someone on here may have an idea who to speak to?

It was all bought legitimately btw.. i have all my old damaged ecu's etc

Derailing OP's thread here, but...funny timing, I did just this for a car a couple of days ago. I had no idea what I was doing when I started, but now have it sorted. In fact, as a test I flashed my DME and CAS modules with his VIN number and haven't changed them back yet.

Key Points:
- The DME and CAS modules are linked to each other by a number called the ISN. Once they are mated with by ISN, they are locked to each other. The ISN can be read and changed in the CAS (somehow, but beyond me so far), but typically when used, they are sold together with the key fobs.
- DME and CAS must be flashed with WinKFP. This has to include a write to the UIF field with the VIN of the car it's going in to.
- CAS has to be coded using NCSExpert to have the VIN and Vehicle Order (VO) of the receiving vehicle. On the E60, the VO is stored in the LM and CAS, so a new CAS will not match until coded. You can pull the VO from the LM and code it to the CAS.
- The mileage is stored in the CAS and Instrument cluster, so the incoming CAS will have the wrong mileage. This is the current hurdle I have yet to clear as there is special software/hardware (called an AK300) needed to do this in the CAS, but it isn't terribly expensive.

[Alias218]

Fantastic car OP, you're very lucky.

What are the specs of the engine? Has it been built to any degree? At some point in the future I'd like to supercharge my 350Z. What would you suggest are the components that need changing to suit FI? Being 10.6:1 CR I'm thinking pistons, plus rods at a minimum.

Thanks for any advice!

[s62]

jcolley said:

I have quite a few S85 parts as well if you need anything, but also in the US. And my good friend is the largest S85 parts guy/rebuilder in the world.

Troy?

jcolley said:

Regarding the DCT, I absolutely think it's possible, and I'm not even sure how much would be different for the software. Much of the logic which controls shifting the transmission resides in the stock DME. Both the mss60 and mss65 share identical map structures for the this area, so if you're using the stock DME, creating a tune file which applies the E92 M3's logic into the S85's DME would be quite simple.

Are you planning to use the mss65 and the OEM DCT module?

I am lucky to have a few friends with good connections so they have
sourced the necessary software
Yes all original ECU's.

[s62]

Alias218 said:

Fantastic car OP, you're very lucky.

What are the specs of the engine? Has it been built to any degree? At some point in the future I'd like to supercharge my 350Z. What would you suggest are the components that need changing to suit FI? Being 10.6:1 CR I'm thinking pistons, plus rods at a minimum.

Thanks for any advice!

Are you talking about the engine that´s going out or in?

As for the 350Z, I have no experience/knowledge of that engine so
I think you will have better luck asking in a Z forum.

[jcolley]

s62 said:

I am lucky to have a few friends with good connections so they have
sourced the necessary software
Yes all original ECU's.

Yep, that would be Troy. I try to help him out when I can, but wish I lived closer.

Brilliant on the DCT. I will be following this for sure.

[Alias218]

s62 said:

Alias218 said:

Fantastic car OP, you're very lucky.

What are the specs of the engine? Has it been built to any degree? At some point in the future I'd like to supercharge my 350Z. What would you suggest are the components that need changing to suit FI? Being 10.6:1 CR I'm thinking pistons, plus rods at a minimum.

Thanks for any advice!

Are you talking about the engine that´s going out or in?

As for the 350Z, I have no experience/knowledge of that engine so
I think you will have better luck asking in a Z forum.

The outgoing engine. That's fair enough, I thought perhaps you could shed some light on the hurdles of converting NA to FI. Unfortunately SC 350s aren't particularly common so info is fairly thin on the ground. Thanks for the reply nonetheless.

[s62]

Alias218 said:

The outgoing engine. That's fair enough, I thought perhaps you could shed some light on the hurdles of converting NA to FI. Unfortunately SC 350s aren't particularly common so info is fairly thin on the ground. Thanks for the reply nonetheless.

Specs on the outgoing motor can be seen in the sale ad on ebay:
http://www.ebay.com/itm/281536450517?item=28153645...

The need for stronger internals is probably going to be governed by the amount
of boost you will be running, turbo or SC, etc. Hardware is probably also going
to be the least of your problems, programming the ECU properly is the hard part.

[s62]

Looks like engine is sold, waiting for payment.

Things should start moving soon

[warsteiner///M3]

i've only just stumbled upon this thread. good luck with the build, i'll watch with interest.
i sold my e30 m3 v10 a couple of weeks ago, and have just started an e46 m3 v10 project

[e21Mark]

warsteiner///M3 said:

i've only just stumbled upon this thread. good luck with the build, i'll watch with interest.
i sold my e30 m3 v10 a couple of weeks ago, and have just started an e46 m3 v10 project

I must admit, when the lottery win finally comes along, I'd love the V10 conversion. Mind you, the latest V8 seems way more revvy and responsive than the old E39 version.

[s62]

warsteiner///M3 said:

i've only just stumbled upon this thread. good luck with the build, i'll watch with interest.
i sold my e30 m3 v10 a couple of weeks ago, and have just started an e46 m3 v10 project

Good to know of others that have swapped the S85 into an E30,
might have to pick your brain when the time comes, pretty sure
there will be alot of headscratching

[s62]

Stripping down the car is uncovering some questionable repairs!

[Don1]

Ouch. Makes you wonder, doesn't it?

[e21Mark]

Good to see it getting the attention it deserves. I really don't get why someone would bodge a repair in that way?

[s62]

Good question.

Will all get fixed!

[s62]

Ok, I went to my friends place in Denmark and picked up the head, he brought it from the US.


Of course it was promptly packed in a suitcase for transport to Iceland:



Rather heavy!!!



That suitcase will not be used again.....

Unpacking: