[W126 Coupe] 560 SEC Supercharger Mod

[Edward Chin]

Hi,

 

Email the pictures and videos and I’ll host them for you if you need.

 

Regards,

 

Edward

 

  _____  

From: mbcoupes-bounces at mbcoupes.com [mailto:mbcoupes-bounces at mbcoupes.com]
On Behalf Of Alexander Hochhausl
Sent: Saturday, November 24, 2007 3:35 PM
To: 'Alexander Hochhausl'; 'Mercedes Coupes Mailing Lists'
Subject: Re: [W126 Coupe] 560 SEC Supercharger Mod

 

My posting won’t go through, how come?

 

-----Original Message-----
From: Alexander Hochhausl [mailto:plustech at optonline.net] 
Sent: Wednesday, November 21, 2007 11:33 PM
To: 'Mercedes Coupes Mailing Lists'
Subject: 560 SEC Supercharger Mod

 

Hi All,

 

I hope my attachments make it through – the AVI may throw it over the top.

 

Here are some pics to tempt your juices. These are just some pics and a
video clip – really just for the sound. It is an awesome sound – the clip
does not do it justice. Please excuse, this is my daily driver so I don’t
have the luxury to keep it 100% clean as I should.

 

Compare the US headlights (left) with the Euro (right).

 

Next as set of 17” AMG rims I picked up (with nice 225x45 tires) for a song,
and virtually like new. However I need to space them out about ½” – they
clear everything, but the offset is different. I’m not sure if I like it – I
am not one for the “pimped” look, but it is sportier than the stock look. 

 

Finally the Supercharger pics. I will be posting a parts list and drawings
of mechanical parts and electrical diagrams. Please check my past postings
for questions on which supercharger I used. Many will work, but will require
modifications to the brackets. This is not a beginner project, but is
feasible with a decent home garage. The most difficult part is the intake
adapter. If a considerable number of people are interested in buying this
part I can get a bulk discount on fabbing this part (which I will pass
along), but I am not looking to build/sell parts – I’m doing this as a
return-favor for all the good info I have received from the site. I will
post a detailed PDF of a dimensioned drawing of the part. I made it myself
out of a block of aluminum (and I’ll tell you where to get it for ~$100 for
the material) but you will need a drill press and some skills to make it
yourself (not to mention patience). But it took me probably 20-30 hours to
make – so I don’t want to mislead you – it is possible, but not impossible,
but certainly not irreversible, an definitely worth-it.

 

So – onto the fun part. This Mod truly brings out the potential in your 560.
Forget adding 5-10 HP, this adds 100+, easily, and I have to admit – it
turns you back into a teen-ager. BUT – if you abuse it, you will be sorry. I
have had this on my car for just about a year, 150K+ miles on original
engine and drive train, and the car runs perfect. I have put many new cars
to shame. The quiet SEC turns into a monster once you ram the air it needs
down it’s intake. But if you abuse your car, then it’s your fault – I take
no responsibility – just showing you what I did, so I hope it will bring you
the joy it brings me
.. yada, yada
.

 

Onto the Pics:

 

The engine compartment showing the major components (while running – see the
oil pressure gauge). I am running this off the AC pulley for now. I’ve been
(slowly) working on an alternate drive, but I don’t have that solution yet.
If you look at the lower left corner, you’ll see a cold-air intake going
through/into the wheel well below. More on this below.

 

The cold air intake – is under the frame, behind the bumper. This clears the
front wheel. The shield is mandatory to keep the filter element dry when
driving through a puddle. Yes, I’m sorry but the white elbow is a Home Depot
PVC 3” drain elbow. Cheap, but the dimensions, and $3 price tag are perfect.
This is one of the key mods for optimum performance.

 

The blow off valve (pink) is mandatory, unless you want to blow out the
bottom plenum of the air flow sensor assembly (which I did 3x). Simple
add-on for less than $100. Not an issues unless you back-pedal at high RPMs
and the slug of air has no-where to go – which happens at red lights – duh!

 

Shot from under the passenger wheel-well shows the oil supply line tapped in
where the oil pressure sensor is normally located. This is a home-made
adapter, but very simple (like me). Also the hose on the right is the oil
return to the block/oil pan – you have to drill a hole & tap it for the
return fitting. Easy to do, but you can’t be afraid. There is a way to do it
to minimize the amount of aluminum chips falling into the oil sump. The
filter element on the right is from the (soon to be) removed air pump
(usually in intake air filter housing).

 

The AVI gives you a taste of the sound. The real experience won’t translate
onto the web-site.

 

OK All. Stay tuned. I just wanted you to know – it’s coming – just takes
time with real life in the way.

 

Please hold your questions until I can post all the info - Sweet dreams.

 

 

 

Alex H

89 560 SEC (Supercharged)

81 380 SLC

 

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