Would it be possible to make a 3.6L M104 KE-Jetronic? - Page 3 - PeachParts Mercedes-Benz Forum

JayRash · #1 03-10-2011, 12:08 PM

man ay relay, all u need to do is give the fuel pump +ev when ignition is on, what u lose are these functions:

- the ugly fuel cut rev limitter at 6450
- when ignition is on and engine off pumps dont run (with new simple relay once ignition is on fuel pumps contstantly come on ) this is the only down side.

- i'm told fuel relay has a special function that runs for few seconds when engine is seriously cold) i havent noticed any diff without it yet.

ps2cho · #2 03-14-2011, 01:01 AM

How much HP can the stock 3.0L CIS Fuel distributor handle? Think it could handle the 3.6L M103, so roughly 245HP? (245HP, 365NM/270Ft-Lb I found)

Just curious....how much would I be expecting to throw down to turbo a 103? I would do all the labor obviously. Parts-wise...?

pifcat2 · #3 03-14-2011, 03:14 AM

Quote:

Originally Posted by ps2cho

How much HP can the stock 3.0L CIS Fuel distributor handle? Think it could handle the 3.6L M103, so roughly 245HP? (245HP, 365NM/270Ft-Lb I found)

Just curious....how much would I be expecting to throw down to turbo a 103? I would do all the labor obviously. Parts-wise...?

My M103 appears to be stock dist and CIS fuel management. RT used larger pistons, stroke, cam, and headwork to produce 255hp.

JohnM. · #4 03-14-2011, 03:45 AM

The way carat 3.6 did it, is so much WIN. Complete top half of a CIS M104 with the bottom half of C36...nice. By the time you sell the extras from the C36 donor engine, the project is half paid for. Then it just drops in with easy harness/ecu change. I'd say it's at least 1/4 the cost of turbos/custom m103 with none of the headache and STOCK Mercedes reliability. I am starting to collect parts soon. I don't envision paying more than $2,000 total with careful parts sourcing

JohnM. · #5 03-15-2011, 02:34 AM

OMG. A 1990 300CE just popped into the local junkyards database this evening. And tomorrow is 25% off day. I've got wood

So depending on the mileage, I may or may not pull the head/intake. I just won't have enough time tomorrow. Does anyone know if the intake manifold is the same for the CIS M104 vs CIS M103?

I will for sure grab: Wiring harness, ECU, Airbox, EZL, Tach, Fuel Dist + Injectors.

carat 3.6 amg · #6 03-15-2011, 03:42 AM

Quote:

Originally Posted by JohnM.

OMG. A 1990 300CE just popped into the local junkyards database this evening. And tomorrow is 25% off day. I've got wood

So depending on the mileage, I may or may not pull the head/intake. I just won't have enough time tomorrow. Does anyone know if the intake manifold is the same for the CIS M104 vs CIS M103?

I will for sure grab: Wiring harness, ECU, Airbox, EZL, Tach, Fuel Dist + Injectors.

Jhon, the m103 manifolds wont fit the m104, so grab the complete inlet manifold/metering head setup and the exhaust manifolds as well. You dont need the down pipes as the m103 item is the same. If you can, take the entire timing chain and front cover setup. Your m103 oil filter housing will fit the m104, but if you want an oil cooler you will need the m104 parts. (the oil cooler lives infront of the drivers wheel). Also dont forget the 2 knock sensors bolted to the block under the inlet manifold.

JohnM. · #7 03-15-2011, 03:55 AM

Yeah. I just looked up pictures of the intake gaskets and they are indeed different. I think it will be easy enough to remove the entire intake manifold tomorrow as one piece with all the CIS attached.

Thanks for the tips on the knock sensors and oil cooler. I should be able to get everything minus the head for around $100-150. Major score. That just lowered the project cost by half. Lets hope nobody beats me to it.