M119.960 water pump drain hole in a Group C car?

[W210 Fan]

Hi guys,

Im building a group C race car from scratch, it has a twin turbo M119.960 block and im doing everything Mercedes did to the original engine in the Sauber C9 but with newer components, I have an M119.960 block with its turbos happily bolted on with new exhaust, new ITB inlet, new fuel system, new wiring loom, new ECU, new oil system, new FEAD, dry sumped and its getting a 6sp manual gearbox, happy to post pictures of what ive done if anybody is interested,

I have bolted a new water pump on as the original was a bit gunky, I have all the connections sorted but there appears to be 1 port I cant identify, using this forum it seems to be a drain port according to this thread, post #25, image #2

M119 water pump upgrade? | M119 Engine

Guys, I thought Dave said there was some long thread about using a M120 water pump on our cars? Anyone here have the information , parts required and experience here? Michael

www.500eboard.co

if I start the engine will water come out? - does it need to be capped off? if its a drain port I could plumb this into the system and have a tap somewhere?

Im not planning on starting the engine soon but im just doing the engine plumbing so wanted to check what it was incase I need to include this in work over the coming days

 

[gsxr]

Im building a group C race car from scratch, it has a twin turbo M119.960 block and im doing everything Mercedes did to the original engine in the Sauber C9 but with newer components, I have an M119.960 block with its turbos happily bolted on with new exhaust, new ITB inlet, new fuel system, new wiring loom, new ECU, new oil system, new FEAD, dry sumped and its getting a 6sp manual gearbox, happy to post pictures of what ive done if anybody is interested,

Would LOVE to see photos! Will this setup go on a dyno? What compression ratio / boost pressure / max RPM? Stock internals?

I have bolted a new water pump on as the original was a bit gunky, I have all the connections sorted but there appears to be 1 port I cant identify, using this forum it seems to be a drain port according to this thread, post #25, image #2...

if I start the engine will water come out? - does it need to be capped off? if its a drain port I could plumb this into the system and have a tap somewhere?

It's a weep hole. Early engines had a pipe leading to a small catch tank, later engines eliminated the catch tank entirely (cost reduction). You can leave it open. No liquid will exit the port under normal operation.

 

[W210 Fan]

GSXR, thank for the reply, so I can leave it, grand, I do have a catch tank on the car for oil, if need I could exhaust this pipe into that or drain it out of the car as it only water,

it has stock internals at the moment, if they break I will upgrade them, I have a spare block incase I make a window in the one I have, from research the stock 960 went on a Mercedes dyno in late 1988 and ran 920bhp on stock internals for 72 hrs WOT, they decided the engine was strong enough as they were using the M117 for racing at the time, the engine then made a little more BHP by the end as it settled in on the dyno run, the race engines ran different internals but more removing mass than adding strength,

yes it will go on a dyno for engine tuning so I know I have optimised all of the settings in the ECU, im planning on 750 BHP and around 600 lb/ft of torque which should yield around 4mpg and not stress anything too much, ive dropped the compression ratio as im running 10-14 PSI of boost (this will be optimised on the dyno) by adding a second head gasket, I toyed with skimming the pistons but wanted to keep the coating on them, if the gaskets blow I will replace them with copper or soft grade of aluminium, I have scanned the new ones I put in before I used them so I can get some metal ones water or laser cut later, ive upped the RPM a little to 7000 s that was a nice balance on the toothed pulleys im using on the front in keeping some stock ratios of alternators and water pumps and not over driving the dry sump pump which has a maximum RPM I cannot exceed, im driving the oil pump at an odd ratio (most dry sumps require 50% engine RPM) as the stock pump produces low pressure but huge volume and ive upped the pump RPM a little to compensate

 

[asultan]

holy shit that tetre rouge racing oil tank WOoooooW. what my fabrication dreams are made of

 

[W210 Fan]

Theres a few more Asultan

anodising welded equipment is always a risk as if its made from different grades of aluminium it can go different shades of colours, this can be used to your advantage (I did it years a go on a bike frame I made) also the weld can go a different shade due to the filler rods not always being the same grade as the main aluminium,

the company I got to fabricate this recommended not anodising but I took the risk and glad I did as its turned out really well,

the company designed and fabricated the tank based on the space constraints I gave them, its obround as its the only way I can get the capacity I need and fit it within the main structure so in an accident the tank isnt ripped off which doesnt oil the circuit and allows me to get back to the pits,

all those tapped holes are mounts as its clamped to the engine A frame with CNC clamps, anodised black with small slots in them to reduce mass and show the colour of the framework underneath, I have been quite anal about coatings both for protection reasons and colour matching, if something is close to something else they will be anodised in the same batch so they are the same colour,

underneath the tank is a oil drain port which allows me to drain the oil without taking the floor off, its metal 3D printed and has oil drain port written on it so a tired mechanic doesnt mistake it

 

[JC220]

Very cool project @W210 Fan are you from Ireland by any chance? I spotted the word Grand used above that's all

 

[W210 Fan]

Very cool project @W210 Fan are you from Ireland by any chance? I spotted the word Grand used above that's all

thanks, no im from the UK but I have family in Ireland so ive picked it up from them