fuel injectors ?
04-27-2009, 01:32 PM
#1
fuel injectors ?
Today i went to my mechanics, i found an S55 2000 and an E55 2000, so i decided to look at the fuel injectors:
S55: injectors color are blue, bosch nb 0280156074
E55: injector color are green, bosch nb 0280155839
i looked to my brother ML55 2001: same as E55
My c32 color is black nb 0280156072
So any idea about the difference?
Thanks.
S55: injectors color are blue, bosch nb 0280156074
E55: injector color are green, bosch nb 0280155839
i looked to my brother ML55 2001: same as E55
My c32 color is black nb 0280156072
So any idea about the difference?
Thanks.
04-27-2009, 01:53 PM
#2
Super Member
Flow-I dont know the Bosch source #' off the top of my head-but its a matter of flow-my guess-S55 is something around a 850, E55 is a 700ish and the C32 is a 550-
Are you looking to upgrade?
Are you looking to upgrade?
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04-27-2009, 03:12 PM
#8
Super Member
wow-thats low! I would have thought for sure 550's were in there! (My Evo X stock was pushing 550's-E85 guys are running a min 800-most 1000cc!)
I wonder if any of the AM S/C guys can chime in on fuel flow-I'd be intereseted to learn more about the C55/32 injectors set up, and fuel pump flow-good info Robert!
I wonder if any of the AM S/C guys can chime in on fuel flow-I'd be intereseted to learn more about the C55/32 injectors set up, and fuel pump flow-good info Robert!
04-27-2009, 04:36 PM
#13
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SRT6
If your running a C32 which is the same engine as my SRT6 then you don't need bigger injectors. I run a LET 181 pulley, modified intake plenums, SL55 intakes and dual exhaust. On my dyno run I went 15.1-16 AFR at above 5400rpm. I was able to correct the lean issue by running a bigger Pierburg pump from the AMG SL55. My AFR after the pump was 11.7 with plenty of fuel left over, duty cycles were reduced from 86-88% down to 75%. It is not an injector issue it is the volume/flow of the factory pump. You have an in tank pump so you will need to find another in tank pump that flows 300-360 liters/hr or 73-95g/h, but still operates in the 3-5bar range or 45-75psi. Any AMG v8 in tank pump will probably solve your fueling issues.
04-27-2009, 05:07 PM
#16
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Yes, here is the part number 0014706594. But remeber the SL55/SRT6/SLK-32 all have external pumps. You need Mercedes to cross reference this part to the identical/similar in tank style. Hope this helps, Dave
06-25-2010, 02:50 PM
#18
If your running a C32 which is the same engine as my SRT6 then you don't need bigger injectors. I run a LET 181 pulley, modified intake plenums, SL55 intakes and dual exhaust. On my dyno run I went 15.1-16 AFR at above 5400rpm. I was able to correct the lean issue by running a bigger Pierburg pump from the AMG SL55. My AFR after the pump was 11.7 with plenty of fuel left over, duty cycles were reduced from 86-88% down to 75%. It is not an injector issue it is the volume/flow of the factory pump. You have an in tank pump so you will need to find another in tank pump that flows 300-360 liters/hr or 73-95g/h, but still operates in the 3-5bar range or 45-75psi. Any AMG v8 in tank pump will probably solve your fueling issues.
so is the Pierburg pump the stock SL55 pump? would it also be possible to upgrade to a Walboro 255? is that compatible? or is that overkill?
0014706594, 0280156072, 0280156074, 1120780349, 1130780349, bosch, c32, c55, e55, fuel, green, injectors, mercedes, number, part, pump
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