BMW E30 M3 - S85 DCT [RNGTOY]

[haggle]

thanks, looks like im treating myself to some nice big stoppers later in the summer then

[Xenocide]

Oooh good luck with the mapping. Post the graphs if you get them!

[s62]

Xenocide said:

Oooh good luck with the mapping. Post the graphs if you get them!

The mapping will be done on an unrestricted part of the A9 Autobahn
outside Munich - no dyno graphs

[s62]

The fun continues

Edited by s62 on Monday 24th December 10:12

[Marf]

[s62]

Marf said:

Indeed.

Ordered the following stuff from www.vacmotorsports.com
which should fix the problem:

- Forged CP 8.5:1 pistons
- MLS head gasket
- ARP head bolts
- ARP con rod bolts

[MrFlibbles]

s62 said:

The fun continues

Ok so for the non mechanically minded....whats happened?

[Xenocide]

MrFlibbles said:

s62 said:

The fun continues

Ok so for the non mechanically minded....whats happened?

I *think* that's looking in through the spark plug hole. You can see the lining of the cylinder wall at the bottom with the top of the piston in the middle. The cracked bit is.. well the cracked crown of the piston.

Am I right?

Still forged internals on the way, bit more balanced. Never a bad thing.

[s62]

Here is another picture with a wider angle:


A part of the piston has melted

Edited by s62 on Monday 24th December 10:13

[Marf]

doesnt look like any bore damage though

[jamiep]

Did you have the injectors flow tested before fitting? if its not a faulty injector then thats down to bad mapping. bad luck.

[_TC]

I love this car S62. good luck with the engine build.
Where was that garage that had a few for sale? i can see a purchase on the cards.

[s62]

The injectors were supposed to be flow matched but I did not second check
that - maybe I should have.

_TC - your best bet is to use www.mobile.de to find a car, I used that site.

[Logie]

Great thread, enjoyed reading and watching the vids. I hope to drive Spa one day, one of my favourite tracks and feel i already know it :P

[s62]

Logie said:

Great thread, enjoyed reading and watching the vids. I hope to drive Spa one day, one of my favourite tracks and feel i already know it :P

Glad you liked it

Spa is a great track and Eau Rouge is a phenominal section

As for the car, the shipment from VAC arrived at the shop today so hopefully
I´ll be driving on the Ring soon

[s62]

A few pics from Tauber. First you see the old piston - thank god
it didn´t break apart














Then there is something a bit nicer to see

Edited by s62 on Monday 24th December 10:17

[Marf]

Holy feck, like you say very lucky that puppy didnt come apart in the block.

Is it the exhaust side of the piston thats been burnt away?

Edited by Marf on Thursday 31st July 15:45

[s62]

Marf said:

Holy feck, like you say very lucky that puppy didnt come apart in the block.

Is it the exhaust side of the piston thats been burnt away?

Yes it´s the exhaust side.

[Marf]

was the timing excessively retarded?

[s62]

Marf said:

was the timing excessively retarded?

Don´t know - will have to ask the mapper about it.