BRNN53 - 3/2/2005 4:04 PM
I'm curious. Are you in Europe, and if so, why import an American market SL when you can find more powerful models there? I own an Euro 500SL that I bought because it has more hp than the US market vehicles. You won't gain much more power with your listed mods but an increase should be seen.
1984 Euro 500SL
I am curious what you are basing your answer on? I have been asking for cam data on another thread regarding the 380, and while I do not mean to argue, your answer seems very typical. Who cares why he bought a US car? Our dollar is weak as crap right now and there will be a flood of our cars leaving for Europe as a result. Sadly, with our EPA and safety laws, many will never be allowed to return.
If there is anyone out there who really wants to look into this, consider that a US 560 is only generating 41 HP per liter. This is so rediculously low as to be a joke. A Geo Metro makes more power per liter. I own a 380 and am looking into a cam change for it. I realise its a bit low on compression, but it should still respond well if what it has now is what I believe to be drastically advanced camshaft timimg with narrow duration and low lift. I havnt found anyone with any data on any MB engine regarding lift, duration, or valve timing. If I find some, and people stop slamming me or calling me thick for asking, I will post anything I find.
I own a 77 Ferrari 308. The 308 is presently spread all over my garage for rebuilding. There is a vast amount of information from fellow enthusiasts, that show that cars with the CIS system were generally given advanced valve timing and short duration for several reasons. One was emissions, another was reliability, another was that reversion with hotter cams can fool the CIS and screw up fuel management. But in dyno testing different cam profiles, it was shown that mildly hot retarded cams would still drive well, so that the reversion problem may not be a great issue. Lucky for me I have a carb version with hot factory cams.
The 380 SL I own, I plan on doing something to bring up its performance. I dont know where it will go, as it seems there are no enthusiasts interested in hotting up a 380 MB. But I would rather install a couple cams and live with some better performance, than change the engine out. Man, with the cost of a good repaint alone at $6-8K, a 380 is a bargain if it can be made to at least move out of its own way.
I think hot cams in a 560 could make a drastic difference in performance, especially if there is some knowledge of what has worked in the past. I know Renntech was making some cams for 380,500,560, one size fit all, but I have no knowledge of the profile. As far as removing cats, they probably wouldnt make a great difference until you reach higher HP which will by nature require greater flow. I mean, looking at it as two four cylinders, its only 1.9 liters. A 1.9 should easily make 100 HP with no trouble, so your 560 could make 300 HP with little trouble, all things being equal. Thats still only 52 HP per liter. A little bit more than a big Briggs and Statton industrial engine makes.