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#31
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cams came in today. they look good. may have to try them before i redo the intake.
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#32
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sounds like a plan, i find it interesting that they say it'll do both na/supercharger and turbo? is it like jack of all trades, master at none kinda deal?
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'85 190, unrego'd (prospect track car) '87 190e, manual (kinda rare in australia) '89 260e |
#33
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I think that for a car that is driven on the street that you want response from that this is true. If you are going for a racing profile though be it one or the other then they start to spread apart a little. Obviously top end n/a would have more overlap. Lobe centers would move a little. More duration. Turbo chargers and superchargers then it depends on application also. The big difference I see between these in say a drag motor is the exhaust cam. But if you had a drag profile on a turbo motor then it would be very lazy around town. Turbo lag bad.
The nice thing about the profile that I have now is that it is about max lift on the stock valve train. To go more than this is going to be very expensive. Springs, and all hardware and solid lifter buckets at a minimum. Probably valves also. So probably a 2-2,500 dollar head job. So that would have to have some results that could not be made by a couple more pounds of boost. I think if I were starting from scratch at this point I would get a 3.6 motor and a 3.2 and build a stoked 3.2 with the 3.6 head and get a custom exhaust cam. You would be in 6-7,000 on a fully built engine that with moderate boost of around 12-15lbs would make a hell of a lot of power. If my setup is any thing to base it off of I would say at least another 100-150. Not bad to have 6-700 hp for around 12-15000 with turbo/supercharger and injection. |
#34
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i have the 3.2 and was going to start looking for 3.6 crank and rods, i thought the only difference with the 3.6 head was slightly less mild cams?
i also have a c36 but dont really want to start touching that, it's a beautiful daily at the moment
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'85 190, unrego'd (prospect track car) '87 190e, manual (kinda rare in australia) '89 260e |
#35
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The 3.6 head also has slightly milled valve spring pockets on the intake side and gas-flowed exhaust ports.
I believe the euro ones also already had the air pump blocked off from the factory.
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1993 190E 2.6 Sportline |
#36
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at the risk of sounding a bit stupid, whats gas-flowed? as in the flow of each valve port has been matched more equally?
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'85 190, unrego'd (prospect track car) '87 190e, manual (kinda rare in australia) '89 260e |
#37
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Cams are in and the car is running. Took forever for the lifters to pump up. I swapped them with another engine because I had a couple ticking on me sometimes. Scarred the crap out of me. Scoped the cylinders and everything to make sure no interference even though I knew there was not an issue. I will report back with first impressions and then down to the dyno when time permits.
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#38
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Well very strange. My but dyno says it is pulling harder. But my datalogger is showing more boost. Which should be the opposite. I have a very safe tune in it right now. So I will take some time to dial in some things. It is so hard to tell at this point what things do. I am going to make an appointment to put it on the dyno before I do anything else to see the gains.
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#39
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Quote:
Gasflowed= ported. They basically just put the head on a flow bench, port the head, and then try and match the ports. I'm not quite sure what gain that gives on the exhaust side. I know the rare 3.4 AMG had both the intake and exhaust ported, but the 3.6/round port motors only had the exhaust ported with a larger intake cam.
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1993 190E 2.6 Sportline |
#40
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Figured out my cam advance is not working. I swapped some parts around and put a spring in from another unit and I think that may have done it. Actually the air/fuel being even close with advance off tells be they are doing a lot. It is normally pig rich with the cams off on the cam on tune. I will have to do some more testing.
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#41
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OK,
finally got a short pull on the top end. Was a little confused there from some intermittent advance issues. With advance on it still makes considerably more power on the low end. I am seeing about 1-1.5 lbs less boost with the new cams. I have not gotten a clean pull on the top end, above 5500-6000 rpm. In second with the wet pavement it just lights off the tires even if I roll into it. Doing a top of 3rd pull is out of the question without some sun. From the logs I have gotten it looks like they are breathing about the same amount more on the top. I also measured a C36 intake cam for lift yesterday. It has about .010 more lift than my intake. That is with my crappy mic. But measured about 4 times with same results. According to WEB though they would want a little more spring clearance for that. I measured mine a bunch of times and according to their specs my lift is maxed out. So if the 3.6 has the head machined for more lift on the spring then that would make sense. |
#42
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Quote:
is this doc the answer
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Jay, ----------------- -1995 Blue W202 C36 AMG (M) SOLD ;( -1995 Black W140 S500 (Lady) -1992 Black W124 E300 (Dima) (Ex-Mosselman Twin turbo Kit). -1988 Black W124 300 E 4-Matic.(Nadeen) -1983 Brown W126 500SEL.(Old Lady)(Sold) -1981 Gold W123 280CE.(Dareen)(Sold) http://www.youtube.com/user/jayrasheed |
#43
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Yeah, that would make the difference. Just seems like a lot of work for the minor lift increase. I honestly think that with custom springs and a little more lift and duration would be for my liking. Just not in the budget right now. Maybe next winter. I might start buying parts and building a fresh head.
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#44
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MERCEDES C36 AMG twin turbo, 6cyl 4valve. engine type 104. Inlet- 35mm valves, all sts parts.
24.22 49.1 72.79 95.3 111.1 120.8 127.95 131.4 134.17 136.25 As above, modded. All std parts. 24.5 49.27 72.37 96.2 113.88 128.46 138.88 142.25 144.98 146.8 As above, std Exhaust flow. 31mm valves. All std parts. 21.55 48.38 80.64 99.65 107.53 112.2 113.6 115.7 116.45 117.13 As above, modded. All std parts. 22.27 48.68 79.8 111.48 121.36 126.3 130.35 131.76 133.89 136.72 Found these on a uk machine shop site. These are cfm at .050 lift increments. |
#45
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are they good?
__________________
'85 190, unrego'd (prospect track car) '87 190e, manual (kinda rare in australia) '89 260e |
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