any successful v8 swaps out there? - Mercedes Benz SLK Forum

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

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#1 Old 02-19-2013
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any successful v8 swaps out there?

I've been interested in swapping a v8 into my slk because I want more power but love my car.
I know it would be alot of work and not a cheap job but has anyone been successful at it? Every time I find a thread about it it's always years old and never very informative.
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#2 Old 02-19-2013
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Originally Posted by trouble575 View Post
I've been interested in swapping a v8 into my slk because I want more power but love my car.
I know it would be alot of work and not a cheap job but has anyone been successful at it? Every time I find a thread about it it's always years old and never very informative.
Not worth the trouble575.
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#3 Old 02-20-2013
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nice play on words james but why is it not worth trouble? wiring issues? space issues?
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#4 Old 02-20-2013
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Originally Posted by trouble575 View Post
nice play on words james but why is it not worth trouble? wiring issues? space issues?
It could be anything I guess. If money is no concern, you could put a SLR engine into a SLK55. But if you've got money to spend, go for it.
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#5 Old 02-21-2013
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Originally Posted by jameslk55 View Post
It could be anything I guess. If money is no concern, you could put a SLR engine into a SLK55. But if you've got money to spend, go for it.
I guess I should have been more clear when I posted, my car is a 99 slk230, I may end up just giving up on my car going faster. May be time to start a 350 swap on a rx7
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#6 Old 02-21-2013
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It would be quite the project...

If you like your car, keep it, and find another 170 to work on.. You might want to look for a Rover 3500 engine, or buick 3.8L (same engine in many respects). It's a very small block. You'll have to redo all the ignition associated wiring, but there are lots of hot rod digital set ups out there now.


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#7 Old 02-22-2013
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Originally Posted by Der Flieger View Post
It would be quite the project...

If you like your car, keep it, and find another 170 to work on.. You might want to look for a Rover 3500 engine, or buick 3.8L (same engine in many respects). It's a very small block. You'll have to redo all the ignition associated wiring, but there are lots of hot rod digital set ups out there now.
Oh im not getting rid of the car, its got to much done to it to ever get what I would want from it. A friend of mine informed me earlier that he has two 2jz motors taking up space at his uncles and said he would be willing to give one up for us to do a swap with. Now its got me thinking what it would take to do it.
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#8 Old 02-22-2013
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Engine/tranny/diff/etc and the ECU stuff. Just like every other swap, all the mercedes benz owners are just idiots and think swapping engines is no good

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#9 Old 02-22-2013
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Originally Posted by gakz View Post
Engine/tranny/diff/etc and the ECU stuff. Just like every other swap, all the mercedes benz owners are just idiots and think swapping engines is no good

so maybe thats why all the threads I find for swaps are always dead with nothing but unhelpful information
I think a 2JZ would be sick in my slk230
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#10 Old 02-22-2013
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There was a successful V8 transplant in the Crossfire world - that's the only one I'm aware of...

It was evidently quite an adventure, and I think the general consensus was it would have been much easier to just drop a non-MB engine in - and replacing the tranny with a non-MB tranny.

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#11 Old 02-22-2013
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Brabus did a GM LS-1 swap on an R170 awhile back, and a newer one as well. I'd say it was successful but extremely expensive as you could imagine.
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#12 Old 02-24-2013
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Quote:
Originally Posted by Gulliver View Post
Brabus did a GM LS-1 swap on an R170 awhile back, and a newer one as well. I'd say it was successful but extremely expensive as you could imagine.
they've also done it with an MB engine I believe:
https://www.slkworld.com/amgs/12824-b...son-video.html
If you are serious about it, look into how the stock W202 C43s were made (which could be swapped for a 55 engine) W202s share a LOT of components and major structures with the R170. Or maybe even a crashed CLK430 or CLK55 could be a good start. You'd need a lot of electronics from either car though.


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#13 Old 02-24-2013
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Originally Posted by gakz View Post
Engine/tranny/diff/etc and the ECU stuff. Just like every other swap, all the mercedes benz owners are just idiots and think swapping engines is no good
I prefer letting the factory do my major mods. Swapping out a "perfectly good" engine is the same as the joke, "jumping out of a perfectly good airplane".
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#14 Old 03-02-2013
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brabus did a e55 swap years ago. i think about 10+ .

they had it for sale too at one point. it was like 50-60k but completely brabus'd out
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#15 Old 06-17-2013
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On the crossfire forum (the r170's sister car), there are plenty of Do-it your-selfers (who provide full write-ups on the subject). That have done successful m113 v8 swaps, there are even a handful of them have have 55 kompressor swaps.

So it is feasible, if you have excellent mechanical knowledge
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#16 Old 06-17-2013
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For the sake of discussion let's say that there is some zillion horse V8 in a tiny little package that would fit under the hood and you did a great engine swap.

One of the real beauties of the SLK is it's balance. Very close to 50/50 front/rear weight distribution. By doing this swap, you will make a nose heavy car that will accelerate like crazy in a straight line, but corner like a '56 Rambler that has had lead poured in the front bumper.

Many a sports car has been turned into a handling pig in trade for straight line performance. The C2 and C3 Big Block Vettes come to mind, more so the C2 since it was designed from the get go for a small engine. Camaro's and Mustangs of the sixties are also good examples. Designed for small V8's, but later, HUGE lumps were put under the hood turning them into nose heavy monsters.

If you want something with blinding acceleration, there are PLENTY of cars out there that can pin you against the seat, but can't turn a corner no matter what.

The world is a compromise. Our little cars were very successfully designed by the German speaking folks in Stuttgart with the goal of giving fun acceleration and fabulous handling. They achieved the goal. By putting an overweight lump up front, that wonderfully balanced handling that we take for granted will be completely out the window.

My $0.02,
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