SL/SLC-Class (R107) 1971-1989 : 250SL, 280SL, 450 SL, 380 SLC, 450 SL, 380 SL, 560 SL

SL/R107: 450 SLC 5.6 twin-turbo

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Old Sep 18, 2010 | 07:13 PM
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450SLC 5.6 twin-turbo
450 SLC 5.6 twin-turbo

as i like turbochargeing and i did this to my 450 SLC 5.6 its a 560 engine. this triggerweel and sensor on the pic is now removed and i use stock at the rear of the engine works perfect at ANY rpm the one who triggered the EZL module at the time you know.
Attached Thumbnails 450 SLC 5.6 twin-turbo-dsc01028.jpg   450 SLC 5.6 twin-turbo-dsc01030.jpg   450 SLC 5.6 twin-turbo-dsc01031.jpg   450 SLC 5.6 twin-turbo-dsc01034.jpg   450 SLC 5.6 twin-turbo-dsc01035.jpg  

450 SLC 5.6 twin-turbo-dsc01036.jpg  

Last edited by Fullboost14.7; Sep 18, 2010 at 07:20 PM.
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Old Dec 15, 2010 | 06:18 PM
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88' 560SL
amazing

My first car was a 560 and I always wondered about more power...and now a casual search reveals someone had the ***** to put a twin turbo setup. This is truly crazy, and impressive. What kind of power does this engine put out? How does it drive? Torque surge? Did you stick with the standard tranny or put something else in? Any more pics? Do you have a standalone ecu controlling the engine?
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Old Dec 15, 2010 | 09:13 PM
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450SLC 5.6 twin-turbo
450SLC 5.6 twin-turbo

hi man and thanks for asking, well the car is just amazing thing to drive it really moves like crazy thing is i havent dyno it yet but the time will come soon as i going to fully mapp the engine again to flat out and maximum power later with bigger injectors and a complete new fuelsystem. So i run 2 turbos with name Holset H1E with turbine house size 14cm. 560 euro stock exhaust manifolds modded to accept the T3 flange. and it spool from around 2000rpm then wastegates are tuned to open at 0.4-0.5bar / 3300 rpm and this is not with full throttle. And believe me when the rear tires slip from ground at 40 mph in third gear no rain no snow just a late september night and second gear just spinning no idea to push the throttle so i thaught okay i hit it on third gear but hell no same here, and this is only at 0.4 -0.5bar of boost. And all this with stock tranny, stock drivetrain. modded heads, valve seats, valves and stock cams and that works great. Engine management system is Autronic SM4 with distributor less ignition fully sekvential. 560 stock trigger at the rear of the engine you know is the cable that trigger the EZL module,. wow its the best you can use. And camsync is made by me. Slightly lowered the compratio from 9- 8.9 so far no pingning no nothing just runs and goes like a clockwork.
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Old Dec 17, 2010 | 11:29 PM
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Euro 500SL, 1983
Nice! What kinda rubber are you running in the back? 245s?
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Old Dec 19, 2010 | 05:33 PM
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450SLC 5.6 twin-turbo
450SLC 5.6 turbo

i run 225s semperit but its hard to get any fatter tires than 245s if i still got same traction problem and when im gong to rise boost pressure around 14 psi this would be something to try out.
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Old Dec 26, 2010 | 09:11 PM
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From: Overland Park, Kansas
SOLD both: 1987 560SL 2003 ML320
Well Boost, you definitely got the attention of every 5.6L 107 owner on the web! I've had too many shops tell me that this was not possible. They obviously just did not want to bother. You may find yourself consulting on several of these set ups!! You sure as hell have my undivided attention.
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Old Dec 27, 2010 | 07:50 AM
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450SLC 5.6 twin-turbo
thanks man, i can just aggree with you and another thing is when people tells me like, this is not going to happend, you just cant do it ore its not possibleand vise versa. then something triggers me even more to make it possible to do it, theres no words for such negative feedback LOL it has to go nothing else matter, and i did things that everybody told me it wont. and that is a good feeling and a proof of how i afterall manage it and i did. Now i must check Benzbin.com out to see what i can find there...
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Old Jul 21, 2011 | 10:08 PM
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450SLC 5.6 Twin-turbo
hi guys it whas a while but after all this building and turbo thing, i had a very nice ride from the first day i turned the key it run perfect no issues ore anything , even in hot summer the under hood temp is not higher than i use to have before ,see many people talk to much before they even try it out first like my painting will come loose from the hood and things will melt down etc etc, bull**** i say, so i have tell you out there it still runns like the day i drove it out from the garage. with no issues at all. its soon time for dyno numbers
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