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#1
04-28-2009, 04:55 AM
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performance intake manifold?
i noticed that people have a different looking manifold on theyre 617s and i was wondering here you got it or what car it came off of and what kinda gains would be expected from it?
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1985 mercedes benz 300D turbo diesel 1998 VW GTI VR6 1996 VW GTI 2.0 1999 saab 9-3 turbo 1987 300sdl (sold) 
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#2
04-28-2009, 03:55 PM
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Its from a 1975 300D, W115 chassis, and the C111-II and III. It gives slightly better volumetric efficiency and torque but the main benefit is the relocation and standard hose fitting of the inlet.
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#3
04-28-2009, 11:56 PM
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so that will fit my 5 cyl turbo? is it a direct swap? what about the overboost protection? and whats a C111-II and III? and what do those manifolds normally go for?
sorry for all the questions, im obsessed with my car
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1985 mercedes benz 300D turbo diesel 1998 VW GTI VR6 1996 VW GTI 2.0 1999 saab 9-3 turbo 1987 300sdl (sold)
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#4
04-29-2009, 12:10 AM
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C111-II
Mercedes?
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'84 300SD sold 124.128
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#5
04-29-2009, 12:14 AM
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C111-III
Mercedes!
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'84 300SD sold 124.128
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#7
05-01-2009, 01:40 AM
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When I come across one in the junkyards its usually around $20 since it doesn't have a throttle or sensors.
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#9
05-01-2009, 04:37 AM
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Yes, its bolt-on.
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#10
05-03-2009, 12:17 AM
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but there might be a clearence problem with the original turbo...
__________________
Current Garage 2008 Mercedes GL320 CDI 188k mi Repair/Work in progress 1994 S350 160k mi Garage Queen & prepping for repairs 2005 E320 CDI 203k mi Healthy & Daily Driver 1994 S350 357k mi Retried as parts car 1984 300TD 214k mi Blown OM617 Poss OM603 Swap?? Sold 1987 300SDL 200K+ 1994 S320 181K mi 2008 E320 Bluetec 127k mi 1999 S420 130K mi 1980 240D 360k mi 15+ Others that has come, stay and gone GONE, BUT NOT FORGOTTEN  1995 E320 SE 220k mi 1984 300SD 350k mi
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#11
07-27-2010, 05:49 PM
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Im doing a custom intake that will end up similar to forum member JTY intake seen elsewhere im starting out with a 621 intake -the great grandaddy of the 617 out of a 58' pon--Toon. It doesn't seem that long runners make sense on a turbo diesel, but perhaps yes according to Jeemu, like a naturally asperated diesel is just a engine that hasn't seen boost yet--so maybe on takeoff and up to the transition where boost takes over, perhaps there is some benefit to long runners with cylinder filling. Anyway it is a plus to get the plenum away from exhaust and heat sink. Im gonna whack these tubes off at about 7.5 and use the spare runner material to scab on the 5th runner and might use the d shaped plenum from ross machine.
Last edited by panZZer; 07-27-2010 at 06:00 PM.
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