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Performance MODS for the R170 Tuning and Performance modifications for your SLK

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#121 Old 4 Weeks Ago
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Originally Posted by Dave2302 View Post

all parts for V8 R170 are in the building

Cheers for now, Dave
Reminds me of a kid in a candy store,,,
Let the fun begin!
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#122 Old 4 Weeks Ago
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Hi again,

OK just bagged a pair of V6 Exhaust Manifolds, reason being I don't want to be chopping up the ones on my V6 Car.

I have looked at CLK 430 V8 ones, as @Turdo2 suggested earlier, also CL500 and S500 but they are simply not the correct shape to allow me to use the stock V6 Downpipes and Cats

This may be a RHD / LHD thing but my car has a very specific bendy twisty on the outlet just as it gets to the downpipes. None of the other V8 Cars Manifolds I have come across look anything like mine at the Rear of the Engine

In an ideal world I would be able to cut these twisty ends off and weld 'em to the end of the V8 Manifolds, but I don't think the V8 ones will allow that, they seem to be a different shape again at the back end they angle downwards where the V6 ones are horizontal or maybe even angled slightly upwards after the last Exhaust Port.
It looks like the best bet is gonna be to cut both so I use the rear 2 cylinders of the V6 ones and the front 2 cylinders of each V8 one, sleeve jointed in the centre, then butt weld the heat shielding across the joint.

I want everything ready so I can do the Engine Swap over a long weekend, initially the V8 is going on the V6 Trans and Diff, so I can be certain that any Electronic issues that may surface will only be down to Engine ME Version Coding.

Once we know that is all sweet, then swap Trans and Diff, and I know then that if anything now surfaces it will be due to TCU Coding !!

By buying 2 spare V6 Manifolds and doing it this way, I can still be using my R170 with the V6, and when the V8 Engine is outta the S Class and on my workshop floor I can get that job done and know for certain that it will bolt straight up to the existing Downpipes, then as it all gets down to the tunnel / underside of R170, the next pair of Cats will be removed and from there on will be a custom fabricated Exhaust system, done here in house

The Manifolds and Exhaust Fabrication will likely take a lot longer than actually swapping the Engines.

Left to buy now, is a 2.82 W203 C Class Auto Diff and the correct Drilled / Vented Front Discs to go with the S Class 4 pot Calipers, 330mm dia / 28mm thick / 46.5mm Height / 67mm Centre Bore with 112mm PCD.

I'll be pulling the trigger on these items very soon now, as a large cash injection is currently due in for the recently depleted "Project Cars Pot"

Project management ..............

When I break the S Class up soon I am going to need a lot of space to dry store all the bits, workshop has no space, so as we are promised a decent weekend weather wise I am going to clear out my large shed and burn all the old kitchen cabinets, doors and stuff I saved for when I built my workshop extension, a few years back !!

I have used all I need now, so the rest is bonfire fodder and other stuff can go up the tip in the workshop Van. This will free up a very large area for all the bits off the W220 that I'll be keeping.

Cheers for now, Dave
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#123 Old 4 Weeks Ago
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The CLK (pre 2002) ones also have a special twist at the ends.. which works really well for my car due to the limited room for exhaust. Were the ones you saw like what's in the picture below?

The Left side (for LHD cars) raise up at the back of the manifold for clearance to the steering box. As I was telling Rik, I'm not sure if the stock V6 down pipes will bolt up, but as far as clearance to everything else goes, they will work. I'm also not sure if there is a different set of manifolds between LHD and RHD.. ??
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#124 Old 4 Weeks Ago
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Hi @Turdo2 ,

Aha !!!!!

They look nothing like the CLK ones I found for sale in UK

So it's likely what I was looking at on Fleabay were either post 2002 CLK or it is a RHD / LHD thing, I will do more digging.

I have put a Blue and Red arrow on the picture below to explain a little

Where the Blue arrow is on your pic, my S Class V8 Manifolds turn downwards = no good ............... The UK CLK ones I saw for sale did the same.

Where the Red Arrow is on all pics would be perfect for me to cut back the Outer Skin on each manifold, then Cut the V6's almost 90 degree Horizontal (in toward Bell Hsg) / almost 90 degree Vertical downwards pieces, which is not actually double skinned all the way on my V6 Manifolds, see attached pic

I would then weld them into the V8 Manifolds using the Existing downpipes as guide, and finally just re weld the double skin as per my V6 Manifold Piccies

I will do more digging and searching, try and find pre 2002 CLK pair before I do any fabrication Those Manifolds you have certainly seem to be the kiddies for an easy mod to enable using stock Downpipes

Thumbnails are clickable

Aarons CLK Manifolds .............



My V6 Left ...........



My V6 Right ..........



Thanks once again,

Cheers Dave
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Last edited by Dave2302; 4 Weeks Ago at 09:26 AM.
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#125 Old 3 Weeks Ago
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Hi, Back to the project SLK V8 .............

OK, normality after the Workshop Accident / Incident has now returned.

The SLK V8 Project Management, (clearing out the big shed for dry parts storage didn't happen), so that will go ahead this coming weekend now.

The EBay spare V6 Exhaust Manifolds arrived today, and I cannot for the life of me find a V8 CLK (C208 CLK 430 / 500) being broken up in UK, well only one, and the guy was trying to sell me the Engine etc with them), so I will be going ahead with the original plan of cutting V8 Ex Manifolds off at the end of the front 2 Cylinders. and cutting the V6 ones at the Chalk Line in piccie below, and then sizing the 2 halves exactly whilst bolted to the V8 Engine's Heads with Engine outta the Car and finally marrying the 2 halves with the Weldermabob

Thing is this, the stock V8 S Class ones simply won't fit at the rear bulkhead area, even V8 CLK ones although similar shape to V6 R170, would need some modding to use stock V6 Downpipe / Cat assemblies .................

I want to keep the V6 Downpipes and Cats as standard and so readily available spare part items. The Down-pipes and Cats are actually slightly larger bore than the V8 ones, so no restrictions etc

I've had a little play earlier today, this just got really interesting and now I know how these Ex Manifolds are built at the factory it will be very very easy to do ............... Pics 2, 3 and 4

Each Cylinders primary pipe section is just slid into the next Cylinders section and when they are all spaced correctly etc, (like when bolted onto the Cylinder Head, so I guess the factory have a jig), then the factory just Weld the Heat Shield over the top, which seals it all up .....................

So all I have to do now is cut the V8 ones being very careful to only go through shielding and then once the shields are carefully sized to butt up perfectly, all I gotta do is put a nice weld around the outer shield ................

The eagle eyed amongst you will notice I have deliberately cut the V6 one too long, the forward cylinders primary pipe is the scrap bit anyway then all I do with my V8 S Class ones is to cut off and scrap the rear 2 primaries and slide the 2 halves together before careful sizing for the heat shielding butt joint and final welding

This job just got a whole lot easier now I know what exactly I'm dealing with











Cheers for now, Dave
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Last edited by Dave2302; 3 Weeks Ago at 01:07 PM.
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#126 Old 3 Weeks Ago
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Hi,

Project Management exercise is going ahead today / this weekend ....................

Basically clear out the un holy mess in the Storage Shed, burn all the old wooden Cabinets etc, scrap a few old Gearboxes etc and get it ready for stripping the Donor Car next weekend

Cheers for now, Dave



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#127 Old 2 Weeks Ago
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Hi again,

Well I had a good days graft, here's the pictures for yesterday, last 2 are at close of play 6pm last night.

I now got to dismantle an 8' x 4' bench, add some 4x2 timber along the wall and cut the bench into 2 times 8' x 2' and screw them in, then install some shelves above, and install some timbers underneath the one nearest the door, for another shelf, where I can also put all my 25 litre Drums of Brake Cleaner, Gun Wash, Screen Wash etc etc, these all have taps on them, and I refill my 5 litre cans from them, but they take up Workshop space.

I am not certain I'll get all this finished today, it is pissisting with rain today

I got to clear the concrete base from all the fire debris etc, and swap some spare W220 interior parts out of the old minibus and fill it with scrap metal ready for the scrappie guy to come and get it

May have to juggle a day during the week, or put the Donor stripping back until the weekend after next











Cheers for now, Dave
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#128 Old 2 Weeks Ago
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Well it's still raining

I've tidied up the bonfire and re parked the Cars for now, it's still pouring down, so in a minute I'm going to get that bench in the workshop and strip it down / modify it ready to go along the left wall of the shed, and then make up some shelving

And the two V Class Minibuses ..............................

I was going to ring a local guy who runs vehicles in for scrap, he doesn't pay, but no one else will take them because it's not worth it, he transports vehicles, all over, so when he is heading Inverness way (near where the frag is), he will take one over if he's got space, pays his Diesel money

By pure chance I sold our old one to a fella for spares, also filled it up with all the good spares I had in my Workshop loft

The old one which I took the good Engine / Gearbox out of will be sent to scrap yard very soon when I have filled it up with all my old scrap Metal, including cutting up the old ride on mower which has been buried in the shed for 4 years !!

I'll EBay the good engine and auto box, which has been sat in my workshop for 12 months plus If there's no takers it'll get chucked in the back of the old bus it came out of, before the transporter guy comes to take that one away

I simply haven't got time to do our Bus, nor is it really financially viable to do all the work to get it up to scratch again ................ It has sat for 2 years now since I blew the engine, it still starts and runs on 3 cylinders so can be driven on the guys trailer
The fella has paid me and is picking it up this week, like I said, I was gonna scrap it for nothing, no one will buy scrap cars up here, but that guy turned up last week wanting spares so I seized the opportunity and sold him the whole thing for Ł200

We no longer have a use for it since Mels brother and dad died.

Frees up 2 more parking spaces, 3 once I've broke up the S Class and got rid of what's left


Weather looking good this week and Workshop not mega busy so I'll get another bash in the shed later this week





Cheers for now
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#129 Old 2 Weeks Ago
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Hi again,

Well, I got more done than I thought yesterday, (Sunday), despite the weather .............

The pic below is where I'm at at close of play last night

I ended up dismantling the two wooden 8ft x 4ft doors that came off the rear of the Workshop a couple of years ago, and using the 4" x 2" timber to build the first shelf, which is 16ft long, and goes almost to the bottom end of the shed, the 2 legs are temporary, just to get it all level, I will be installing 2" x 2" between floor and roof and attaching more 4" x 2" horizontally above and below this one so I will have 3 rows of heavy duty shelving running along this left side of the shed length wise.

The right side has metal Racking all along it, which needs a good tidy, and junk some more stuff.

This shed is approximately 20ft x 10ft but the fact of the matter is, no matter how big a shed is, without an abundance of good heavy duty shelving you cannot store much in it just on the floor !!

Weather looks grim today too !!

Today is just an 'A' service on a 2015 26k mile GLA, then I plan on getting the Electricity Cable re instated down to the shed to get the lights and power back on, this was disconnected when I built the workshop extension 3 years ish ago, cable is coiled up behind the Workshop Wall, so I just need to Drill a hole and hook it into the Consumer Unit

After that, I plan on a run to Broadford tomorrow to get a few lengths of 4" x 2" and 2" x 2" to finish the Wood Racking. I have enough Ply sheets to top it all off

That 8ft x 4ft bench I mentioned earlier is gonna get cut down to 5ft x 3ft and get some wheels fitted so it can be used and moved around in the workshop when needed, I just felt it was too good and solid to completely disassemble for the racking, especially as the old doors were so easy to cut down to make the Shed's Racking

Mel is also extremely happy that all this old stuff will no longer be stood around the back of the House now, but I just knew it would all come in handy one day when I took it all out of the Workshop 3 years ago



Cheers for now, Dave
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#130 Old 2 Weeks Ago
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A busy day in the workshop, the Merc ended up having a bit more than just a service , but the leccy is now re instated in the Shed

I have ordered two 5ft Double Fluorescents to replace the 2 bulb holders, plus a couple more Double Sockets to add, it is handy now and then to have power at that end of the drive too, rather than running out a really long extension Cable



Cheers for now, Dave
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#131 Old 1 Week Ago
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Hi, back again,

Managed to get a little more done in the shed, it's dragging on a bit, but I have a feeling it will all come together quickly once the racking is finished, floor tidied and then sort out and dump a load of redundant stuff ot the existing racking the other side.

The pictures below, I have improved the lighting with 2 5ft double fluorescents, and added a few extra / replaced existing double power sockets !!

You can also probably see how / where I'm going with the heavy duty wooden Racking, there is to be another full shelving row below and above where the middle section is, and when that is finished there will be a few more upright support legs

So far, all the timber used is almost all recycled from the old "Workshop" Doors, from here on I will use up all the new stuff, probably need to buy more Screws, why is it one big box of screws is never enough

I promise we'll be back on track in the next week or 2, once the shed is sorted I'll then start reporting on stripping the Donor S500 to harvest all the bits for the R170 V8 Conversion











Cheers for now, Dave
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