Injector size

[Denlasoul]

Does anyone know the size of the fuel injectors of a C43?

[Denlasoul]

Anyone....?

Anyone.....?

[jnenad16]

check this site out

http://www.rceng.com/technical.htm

hope it helps

nenad

[Denlasoul]

Thanks. I've been to the site before and am thinking about stepping up injectors, but wanted to know what my stockies were pushing.

edit: did some math and my calculations say I am running 23.6, so basically 24.

Now all I have to do is bump up airflow and beef up my injectors. :D

OT: What was necessary for you to have the engine transplant done? What ECU are you using?

[jnenad16]

I used an engine out of a 95 E320. the ecu is original from my 95 c280 because E320 ecu has only 1 O2 sensor input, so I had to keep my original ecu. But I am getting a powerchip soon, so my ecu will be recalibrated for 3.2L displacement as well as for all the other mods.

[jnenad16]

as for the injectors, do not go too big because your O2 sensors wont be able to regulate the mixture, so if your stock injectors are around 23.6 #, and you are just gonna put on an intake and exhaust and some smaller mods, I would recommend injectors not larger than 26#
and also i highly recommend accel injectors because they are the the same length as the mercedes ones. the only thing you might have to do is change the lower o-rings on the new injectors because they might be slightly smaller than the mercedes ones. if you got any other questions, please post them and i will be happy to help you out

nenad

[Denlasoul]

Have you looked into replacement O2 sensors?

[jnenad16]

yes, i have, but they work within the OEM specs, which is virtually useless in this case. but like i said, if you put up to 15% bigger injectors than stock, the O2 sensors should not have any problems regulating the mixture, so if you say that your stocks run around 23.6#, than 24# or even 26# injectors should be fine( I would go with 24# just to be on a safe side, because on your C43 24 pounders should be good for up to 350+ HP)

[Denlasoul]

Thanks for the info. Im just compiling things to consider when upgrading the performance in the engine.

[jnenad16]

good luck with it.

nenad