Silver E55.

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Thanks Bobby.

With the gearbox sitting neatly in place it was time to address the propshaft. This was sent to a specialist for a new yoke and also to cut, weld, balance and paint:

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We then set out to modify the original gearbox bracket. Luckily Mercedes have made a few holes in the chassis, persumably for different gearboxes, which have been tapped and reused:

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And a trial fit before it gets removed for paint:

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What a machine! This is all kinds of epic! I wish I had the skills to undertake something like this!

Out of interest, any reason why you went this route and not a w212 E63?
 
Nice to see some progress documented finally geeze!

I'm intrigued to see the final incarnation and how it does.

What final power output to hope / expect to see?
 
That's not a car that is ageing gracefully from a looks POV. Mercedes briefly lost the plot in that era. Epic performance and noise of.course

I think the w212 e63 is a good looking car tbh, but then beauty is in the eye of the beholder
 
I think the w212 e63 is a good looking car tbh, but then beauty is in the eye of the beholder
Yep fair enough. I really liked my W204 and I think that has aged much better. The creases etc work well on that where as I don't really rate the way the w212 looks (or the interior) Think Merc went down the worng design direction but now back on track as I think the new Cs and es look great. Anyway, I digress. Looking forward to more info...
 
What a machine! This is all kinds of epic! I wish I had the skills to undertake something like this!

Out of interest, any reason why you went this route and not a w212 E63?

Thanks. I love superchargers and the car came costing next to nothing so it was an easy decision.
 
The cooling for the supercharger circuit has also been extensively redesigned. This involved a different supercharger plate, bigger pre-radiator and intercooler, modifications to the inlet casting and pump and header tank fabrication. The core has arrived from a local company based on measurements taken before:

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I then welded the matching ports to it as well as the breather for self-bleeding:

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For the header tank I went with design similar to that of Weistec as I wanted less dissimilarities in the engine bay. It also fitted nicely over the wheel well housing.

Cut and bent on the sheet bender:

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Tacked and welded:

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Pressure tested for leaks:

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Painted and ready to fit:

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Inspiring Work Alx, been following this build for a while on instagram, brilliant! Good luck with the testing, then let us know when you are going to smash the 200mph Runway goal.
 
Thanks guys. Appreciate the feedback.

Alex is this going to negate the need for a trunk tank?


It's a personal preference bud. I did have the tank at some point but didn't go ahead with it in this build. Nothing wrong with having it if you know how to use it but it complicates the setup and troubleshooting and with the setup that never ran you don't have a baseline so might as well start small and add as necessary.
 
Yes I get it. The trunk tank is a step too far for me and compromises usability too much. I understand why its good for people doing repeated 1/4 miles etc. Intrigued to know if this set up does the trick as its so neat.
 
Alex, love threads like this, very rare we see them on this forum now and I've got massive respect for you for embarking on such a project.

Even though you've obviously got the best AMG engine ever built already and I can understand why you'd stick with it, did you give the V12 Bi-Turbo (a la Brabus) conversion any thought?
 
What final power output to hope / expect to see?

Sorry J. Didn't mean to be rude but somehow missed this part of your message. Short answer, I'd be happy with a round figure of 750BHP. Long answer, it depends on many factors, not least of them the capacity/capability of hardware used. For example, the intercooler is rated at 670WHP (or 770BHP) @ 15 pounds of boost. That doesn't mean the car won't make more power, it will just heat soak quicker. I can live with that of course as WOT @ Vmax is only 2-3 mins long but I would like to have a healthy reserve which can be activated when necessary rather than overstretch things like I had done before. The ECU in the car allows for multiple maps and I will have one for methanol too. For those special runs ;-)

Alex, love threads like this, very rare we see them on this forum now and I've got massive respect for you for embarking on such a project.

Even though you've obviously got the best AMG engine ever built already and I can understand why you'd stick with it, did you give the V12 Bi-Turbo (a la Brabus) conversion any thought?

Thanks Lee. Many times! With the standalone ECU I'm integrating and manual gearbox that matches the bolt pattern of both M113 and M275, it's sourcing the right 65 AMG donor that becomes more difficult. A manual bi-turbo V12 with all power to the rear wheels in a taxi like chassis sounds like a lot of fun to me :)
 
The next thing on the list was trying to improve the Weistec kit. I had some ideas of what can be done so the work started, as usual, with taking it all apart:

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The area of interest was the intercooler so a new specimen was ordered from the US and landed shortly after (old v. new):

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To house the new intercooler, a few changes had to be done to the inlet casting:

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Namely, a new floor to fix the oddly shaped frontal part of it (designed to fit over the standard engine wiring loom, not a concern to me):

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As well as removing the bypass valve. After all the welding has been done by yours truly, it was time to skim the mating surfaces:

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The last bit of change was designing and machining a new adapter plate to allow better air flow around the bigger core:

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After everything has been machined and arrived I could finally start putting things together.
 

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