Oil cooler diverter valve

[Mike R]

Originally Posted by lawsy

Yes spal fan.

Running a little injection system too

Would you mind posting up the info once it has all been fitted and tested ?

[shane@mbtech]

Originally Posted by Mike R

Would you mind posting up the info once it has all been fitted and tested ?

Of course.

I want to get it fitted and trialled first.

[The Gorilla]

Hi,

Mr. Lawsy please tell me that your not going
to run a Water / Meth injection system on
the S54.

The S54 cylinedr head for what ever reason is
prone to corrosion pitting which can occur even when
the anti freeze mix weakens and electrolysis occurs as
more evident around the feed holes for the head water jacket,
BMW has stopped coating the Head Gaskets now and with
replacement Head Gaskets, most S54's have been replaced,
you have raw copper now in contact with aluminium.

Regards,

The Gorilla.

[shane@mbtech]

Originally Posted by The Gorilla

Hi,

Mr. Lawsy please tell me that your not going
to run a Water / Meth injection system on
the S54.

The S54 cylinedr head for what ever reason is
prone to corrosion pitting which can occur even when
the anti freeze mix weakens and electrolysis occurs as
more evident around the feed holes for the head water jacket,
BMW has stopped coating the Head Gaskets now and with
replacement Head Gaskets, most S54's have been replaced,
you have raw copper now in contact with aluminium.

Regards,

The Gorilla.

Its not going to be used on a permanent basis, only on track.
Not mapped in, purely as a safety buffer. Used it on other cars with great results, and no issues.

My car will do about 2000-4000 miles per year, and the Meth will only be injected WOT, on track only.

I am willing to try it, you get nowhere without trying.

Have you tried it on the S54 Danny?

[The Gorilla]

Hi Shane,

I have a S54 CSL cylinder Head here
which was taken off an engine where
Water / Meth injection had been run for
around 12-16 months.
[not by me]

I purchased the engine for the bottom end
for another car as it was only 15,000
miles and thought I could keep the complete
CSL head as a spare.

I will take a couple of pics the weekend
and send you them.

I would be very careful as the the combination
of Iron Block, alloy head, and bare copper head
gasket having a water/meth ''spitzer'' injected in it,
as its already a Bavarian Cocktail that does not
mix so well.

Regards,

The Gorilla.

[Mike R]

Originally Posted by lawsy

Its not going to be used on a permanent basis, only on track.
Not mapped in, purely as a safety buffer. Used it on other cars with great results, and no issues.

My car will do about 2000-4000 miles per year, and the Meth will only be injected WOT, on track only.

I am willing to try it, you get nowhere without trying.

Have you tried it on the S54 Danny?

That makes no sense to me on a normally aspirated engine. I can only imagine you will just end up inducing misfires.

The Cossie has WI as standard, but it is ECU controlled and only comes on when Air Charge Temps exceed 44°C and the boost is above 7psi (to prevent it coming on at low rpm / and or from heat-soak). It then automatically turns off when the ACTs drop back below 38°C or the boost drops below 7psi. By using these parameters and a pair of fine 0.6mm WI jets, most of the water is evaporated in the heat-exchange process and so only steam vapour enters the engine.

The problem with using WI on an NA engine is that the ACTs aren't sufficiently high (no compression process), so you will not get the water converting to vapour in any heat exchange process, and so far more water droplets will enter the combustion process that will reduce the octane value of the fuel as well as trying to drown the spark, resulting in misfires.

[shane@mbtech]

Originally Posted by Mike R

That makes no sense to me on a normally aspirated engine. I can only imagine you will just end up inducing misfires.

The Cossie has WI as standard, but it is ECU controlled and only comes on when Air Charge Temps exceed 44°C and the boost is above 7psi (to prevent it coming on at low rpm / and or from heat-soak). It then automatically turns off when the ACTs drop back below 38°C or the boost drops below 7psi. By using these parameters and a pair of fine 0.6mm WI jets, most of the water is evaporated in the heat-exchange process and so only steam vapour enters the engine.

The problem with using WI on an NA engine is that the ACTs aren't sufficiently high (no compression process), so you will not get the water converting to vapour in any heat exchange process, and so far more water droplets will enter the combustion process that will reduce the octane value of the fuel as well as trying to drown the spark, resulting in misfires.

It's a meth mix, not just water mike.

We had great success with meth injection direct into inlet mani on Evo.

The extra ignition it was able to run was not far off race fuel. Much cooler running on engine. I will be adding after mapping. Atomisation will be fine, it's injected in a very fine mist and I will use WOT only. If it doesn't work, I'll remove it. No hardship.

They ran meth injection for years on Indy cars, NA, with great results.

[Mike R]

Originally Posted by lawsy

It's a meth mix, not just water mike.

We had great success with meth injection direct into inlet mani on Evo.

The extra ignition it was able to run was not far off race fuel. Much cooler running on engine. I will be adding after mapping. Atomisation will be fine, it's injected in a very fine mist and I will use WOT only. If it doesn't work, I'll remove it. No hardship.

They ran meth injection for years on Indy cars, NA, with great results.

On a turbo car (like the Evo), no bother, but I bet you will be removing it off the E46 .

However, I would never run it how you were on the Evo, unless it was mapped so that when the low level light for the water / meth mix bottle came on, it switched back to the standard map, as running out of the water / meth mix with the increased ignition timing doesn't bear thinking about LOL.

[shane@mbtech]

Originally Posted by Mike R

On a turbo car (like the Evo), no bother, but I bet you will be removing it off the E46 .

However, I would never run it how you were on the Evo, unless it was mapped so that when the low level light for the water / meth mix bottle came on, it switched back to the standard map, as running out of the water / meth mix with the increased ignition timing doesn't bear thinking about LOL.

It was fully mapped in the evo, and linked into ecu.

My reasoning on m3 is purely to keep it safe.

Many are running water/meth injection on NA with great results.

I'll keep you updated. I AM trying it, so the proof will be in the pudding.

[shimmy]

Lawsy, the heat soak issue will only turn up around 23-24 deg C so you'll have to come south to catch that sort of heat, but very very interested in the results.

The whole airflow issue inc number plate and fans is interesting and worth playing about with (does Alexxgtt run without front plate on track, as he also has experienced the heat soak overheating)