M42 race engine

[Onz]

This is a great thread.  What ever happened to this build?

[dsm2002]

OK, life got in the way for a while, but the M42 race engine project is now revived. Had a chat to Tony Knight Engines (Adelaide) about building it and he was busy for a number of months. Chatted with Neil Trama and he is free, so I have dropped a bunch of parts for him to build and engine for me.

Made a few changes which Neil has run through his engine analyser program and it seems that it could be very high 200hp - theoretical 293hp :enormousbiggrin:

Going with dry sump arrangement.

[dsm2002]

Currently looking at the cooling system. I am planning to use a EWP and possibly other mods. As a starting point, this is the difference between the S42 head and M42.



Also the stock M42 coolant flow arrangement compared to the S42:

[wazzu70]

The coolant manifolds on the head are the way to go. Wish the M42 had them.

There is the heater core outlets on the head you could maybe use to have a quasi coolant manifold. There is a big takeoff in the rear and a smaller one between 2&3 which are good places to source coolant from similar to the manifold on the S42.

[Onz]

Subscribing to this thread!

[E36-italia]

it isn't possible to set up the coollant circuit on the M42, as used on the S42?
You can take out the sensors (put them in a hose, or not use them at all) .. and the heater return/feed nipple can be taken out also to make an S42 cooling system.

[MrPhatBob]

That's what I was thinking when I was looking at the head yesterday - its going to need a bit of machining work to open the three (two sensor, one small outlet) holes up and some modification of the pipes at the front of the head, but that is all straightforward.

[inline]

this seems like an interesting build. what stage is it upto?

what sort of head flow numbers did the porter achieve?

[Nicolai-Denmark]

this seems like an interesting build. what stage is it upto?

what sort of head flow numbers did the porter achieve?

Is it just me or is all the pic's gone?
Can't see any of them...

BTW Any update on the build, im corrently stroking my m42, going s50 itbs and so on

[lambertius]

this seems like an interesting build. what stage is it upto?

what sort of head flow numbers did the porter achieve?

Is it just me or is all the pic's gone?
Can't see any of them...

BTW Any update on the build, im corrently stroking my m42, going s50 itbs and so on

There are better ITB options than using the S50 http://www.m42club.com/forum/index.php?topic=18442.0