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88 sec 560
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Discussion Starter · #1 ·
I am interested in doing this swap, although we are still talking a couple years away. For giggles I typed in "2jz Mercedes" in the search line at ebay and this popped up. 1jz,2jz Mount Swap Kit for E class Mercedes Benz 1994: eBay Motors (item 280579009814 end time Nov-21-10 20:02:03 PST)

-Its not what I wanted, but definitely got me excited enough to create a new thread about it. Does anyone know anything about this swap? Other than "its hard" or "its not a Mercedes engine"? Someone mentioned it in a headers discussion and I have been hooked with this idea ever since.

Even better, can someone please do it first so I have a nice little template to follow? pretty please? LOL.

Take care guys, BTW, good job with this state, this Texas place is great! A man sure can dream when he leaves California!
 

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1983 500 SEC Lorinser 1971 280se w108
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1,963 Posts
Have a bit of a search there are a couple of members on here with Supra conversions
Not worth doing unless you do it with the toyota manual box attached to the back IMO :D
 

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88 sec 560
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Discussion Starter · #4 ·
Yea Joe I was thinking about that. They say the auto is (only) good for 450hp, but the R154 manual for these cars is good to something like 1000hp.! I always wondered why those old 94 supra turbos go for so much $$, but when you really look at the potential, it makes a lot of sense.

I am a little apprehensive about lining up a manual. I was turned on to the idea over a chevy LS motor because it seems like much less cutting and hacking. I'm sure once you get in there though it's a laundry list of fun and interesting complications either way.

But yea thanks, I will def. Check that out.
 

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1988 W126 300SE
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Looking at the title of this post, my heart stop pounding for a second. I saw with my eye a 126 with 1jz-gte engine but never saw 2jz except in picture. Keep a few picture of 2jz 126 to drool until I found a good mechanic who know both toyota engine and Mercedes very well and how to matchmake them.
 

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1983 500 SEC Lorinser 1971 280se w108
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1,963 Posts
My other car at the mo is a JDM Toyota Aristo (Lexus GS300)
It has a non turbo 2jz and auto and the performance is fairly unremarkable
Certainly not inspiring enough to use as a transplant engine
Turbo is the only way to go with Jap sixes in large bodies IMO
 

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MB 1985 W126 300SEL, 1991 MB W124 260E, 2007 MB W209 CLK200, 1999 Skyline R34 GTT Veilside,
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342 Posts
I am contemplating on doing this conversion next month once i source the engine and motor/gearbox mounts fabrication. Have grown tired of fixing my 722.3 transmission which starts to slip again and produce a loud whine as the revs go up, a trans rebuilt done 3 months ago. For no apparent reason, the engine just shutdown while i let it idle to check the ATF level. Took a few times cranking before it managed to start again.

I probably could be very unlucky to experienced so many faults and spend USD 8,000 ever since i bought this car last May 2010. Since i love the shape of the car and the interior space, an engine swap for reliability, power and also have a proper automatic 4 speed with overdrive for long distance drive is my main goal of owning this car.

Hope for more feedback and discussion to those who has done this swap before.
 

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Sold, in the market.
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224 Posts
2jz engine would go great with my underglow and other random LED lighting! Soon were gonna see RB engines in these aren't we! I think I would die if I saw a 126 with an RB26DETT engine
 

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'88 500SEC HV, '84 7MA61 Supra, '83 JZA61 Supra
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369 Posts
alas, it is not :(

GTE is the way to go, reliable, torquey as all heck, partly german design

RB26DETT is too top end for something cruisey like a merc. fantastic engine nonetheless
 

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Euro 1985 500SEL
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1,498 Posts
Just out of curiosity, how good is the Supra as far as ride comfort, handling and reliability? And what are the best years to get?

I've always loved how they looked back in their day.
 

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My cousin had a '94 turbo back in the day,
I didn't find it too comfortable at all.

I guess a Supra is a car where a lot raw power can be extracted from,
no excess comforts or gimmicks.
 

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MB 1985 W126 300SEL, 1991 MB W124 260E, 2007 MB W209 CLK200, 1999 Skyline R34 GTT Veilside,
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342 Posts
The 2JZ GTE (twin turbo) would be the a much easier swap than an RB25/26 due to the exhaust+turbo exiting on the opposite side. I already driving a R34 Skyline manual, the W126 with 2JZ going to be an automatic which is more than capable to move the car quite briskly. Wish to have a clean swap with minimal hacking or mods. Planning to also keep the almost silent exhaust setup for long cruise.

So far i read through some of the thread on LSD, seems like there aren't any for 300SEL diff. Anyone can point me to a right direction whether any other Merc models will fit?

Btw find this link very interesting :
 

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Sold, in the market.
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question. Why bother? I don't mean it with a bad taste, but why? Would it be for uniqueness or extra performance? Is it because you can get it to churn out 1200hp+ if you really wanted to?
 

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87 Euro500HVSEC. 88 Euro 560HVSEC. 89 Euro 560HVSEL
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4,501 Posts
Dumb idea in my own opinion. Six banger does not have V8 rumble.
If you insist why not chev V8 as parts cheap over your way and been done and proven and threads on this forum.
If you want Japanese the Toyota Supra 4litre V8 is a tough engine that twin or single turbo wakes it up.
Conversions never a simple process though and cost $
 

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16 Silverado CC LT 4WD, 12 BMW K1600GTL, 11 Infiniti G37, 10 Infiniti G37x
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Here's a thread about your fellow Floridian who has done a swap.

http://www.benzworld.org/forums/w126-s-se-sec-sel-sd/2008785-lsx-t56-swap-into-1985-500-a.html

If you really want to do a swap, an LS1 swap (or any other LS-series motor, to that matter) will probably be one of the easiest in terms of at least availability and probably also pricing. 5.3 truck motor, for example, can be bought very cheap and they also respond to mods very easily.

Any kind of swap is possible, even a V12 from a W140, if you have enough time, knowledge, and most of all, money. None of the swaps are a walk in the park and there are no ready made "swap kits" (as you put it) available. You will have to custom make pretty much everything, so you have to take that into account when you consider whether the swap makes sense or not.
 
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93' 190E Sportline - 80' 450SEL 6.9 - 67' 250SE
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My favorite thing about modifying cars is engine swaps. For a brief moment I considered doing an auto 2jzgte swap on the SEC. Maybe one day. Turbo inline 6's are just as capable as a v8. The Toyota v8 is also a great engine but it has a very small aftermarket and to turbo it requires custom everything. I've supercharged one using a centrifugal on the lextreme fish bracket.

My next engine swap will be a Mercedes m120 into a 70s era American sedan.
 
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