My w124 M103 e300 finally has the mosselman kit istalled - Page 12 - PeachParts Mercedes-Benz Forum

JayRash · #**166** 01-09-2009, 03:47 PM

Got all the wiring of the kit and hose routed, was a 10 hour job and I ended dismantling the whole right side of the car.
now I have the first controller connected and reading RPM, boost and wideband. This controller does the 2D interpolation based on RPM and boost to send it to the progressive pump controller (2nd controller).
I still have to install the tank and the pump in the trunk, but a waiting for the weather to clear.

since the first controller is in its also controlling the full enrichment feature based on RPM and Boost.

it’s a cool kit this one but expensive at 700 usd. Any way should have the kit up and running by the end of the weekend, fingers crossed

Turbo E320 · #**167** 01-09-2009, 04:43 PM

Quote:

Originally Posted by JayRash

Well waiting for the kit to arrive, i needed to keep my self busy

. so i went out got me a used washer pump for less than 10usd connected its power to the already existing pump and now i have intercooler sprays

http://www.youtube.com/watch?v=IpU6RON5wAQ
Attachment 62511

Attachment 62512

Replace the washer pump with a cheap fuel pump and it will mist which will cool down the intercooler more effectively

Its a trick we did to a top mount rx7.

JayRash · #**168** 01-10-2009, 02:32 AM

Quote:

Originally Posted by Turbo E320

Replace the washer pump with a cheap fuel pump and it will mist which will cool down the intercooler more effectively

Its a trick we did to a top mount rx7.

good one, ill try it very soon, but i hope it doesn't blow the lines out :p

JayRash · #**169** 01-10-2009, 04:22 AM

Quote:

Originally Posted by M103TT

^Brilliant work been reading this thread for a while-but only just joined this site.
I have a M103 Mosselman TT aswell, the original management has packed up so using the same Split Second unit as RBYCC as recommended by him.(thanks Ed)
Need to source a 2nd hand plenum to get machined to mount the injectors.
How long did it take you to make your plenum out of fibreglass? also what injectors are you using?
and once again brilliant work!

Sorry for the late reply,

i am using the stock injectors but have installed the fuel head of the 300-24, if ur going with additional injectors there is no need to change anything on your setup.

the fiberglass part took a day to be made, i gave the guy the rubber boot and he used it for the cast, picked it up the very next day.

i am still not using additional injectors, i keep saying i will, and in the end i will.

JayRash · #**170** 01-15-2009, 03:13 AM

the kit is almost 90% ready, i have the injector placed in after the intercooler, and the tank is installed with the pump and the second controller in the trunk.

all i have todo is connect the pressure line and tidy upl the wires.

My w124 M103 e300 finally has the mosselman kit istalled-js-n95-photo2240.jpg

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My w124 M103 e300 finally has the mosselman kit istalled-js-n95-photo2242.jpg

My w124 M103 e300 finally has the mosselman kit istalled-js-n95-photo2243.jpg

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My w124 M103 e300 finally has the mosselman kit istalled-js-n95-photo2244.jpg

JayRash · #**171** 01-17-2009, 02:00 AM

The kit is up and running, and I am impressed. Pump Operation is silent but the results are very promising. I am using ur usual pharmacy rubbing alcohol for now mixed in with abt 15% water. AFR at 9 psi have dropped from high twelves into mid tens, but since I can map my boost vrs RPM I can control injection to achieve a target AFR of 11.8 -12 @ 9 or 10 PSI.

Secondly I now have more spark advance though since am only injecting above 0.42 bar (6 psi) I couldn’t push timing advance much for normal driving. I can advance if am at full throttle and alcohol is injecting, and since my controller gives me the option to trigger devices by setting conditions, I will have the controller advance the timing when its injecting.

The cool part is that even after a full run thru the gears from 0-230 km when u stop and touch the plenum after the intercooler (where I inject the alcohol) its cool to the touch, like its been parked all night.

will update further results sooon

JayRash · #**172** 02-05-2009, 08:32 AM

Well i have been wanting to go with more boost at least up to 12 psi, but as it turns out i can only open 10 psi as one of the waste gates refuses to open more. its the one on the rear turbo ie; very tight space to be able to remove it and replace it with out taking apart the whole setup.

only other option is to have the front turbo boost more to reach the 12 psi.!!!!!!!!!! and am a bit weary of how that would affect the engine.

any ways i need to open more boost to be able to run more alcohol vs fuel, since my fuel is constant for anything over 8 psi and the rest will need to be covered by the kit.

Oh seems a gearbox rebuild is due soon tooo, well it has covered the full on mileage of the car with no rebuilds ( over 230k miles sofar).

JayRash · #**173** 02-25-2009, 03:45 PM

the car now has a more flowing rear muffler and have fine tuned the management of the alcohol injection and have found the ideal alcohol / water ratio at 30% water.

Am also running 8 deg more timing advance than without the alc injection. So it was time to do several 0to 160kph timed runs.

Result is
0 to 100 in 5.6 sec
0 to 160 kph in 12.1 sec.

But had lots of spin in all the runs as temps where low and the dunlop would not hook.

My guess is i can be still a tad faster. Aim now to go to 12 or 13 psi and time it again. Thats the max boost ill go for.

Turbo E320 · #**174** 02-25-2009, 03:53 PM

I did 16.5psi on a load bearing dyno that had the resistance set for a 4000lbs car. I was using the same brand of water/meth injection but without the controller. The car didn't ping once with the kit turning on at 10-12psi. You could take the boost to the 14-15 range and probably stay reliable with that water/meth kit on there since the m103 is way stronger than the m104.

JayRash · #**175** 02-25-2009, 05:05 PM

Quote:

Originally Posted by Turbo E320

I did 16.5psi on a load bearing dyno that had the resistance set for a 4000lbs car. I was using the same brand of water/meth injection but without the controller. The car didn't ping once with the kit turning on at 10-12psi. You could take the boost to the 14-15 range and probably stay reliable with that water/meth kit on there since the m103 is way stronger than the m104.

Ya man but both engine and gear box have over 237 k miles on them. Dont know how the rods would cope with over 14 psi.

RBYCC · #**176** 02-25-2009, 05:55 PM

Ordered a Marsh mechanical boost gauge and a Hallman Pro RX MBC.
Went with the Marsh gauge as I'm familiar with the quality of the OEM and industrial units they produce

Probably going to go up to about 9PSI and do a few more dyno pulls.

Hoping to end up with rwp of 300HP and torque at 340 on a load dyno..
Up from 260 and 302 at the current 7PSI

It's addictive...

Turbo E320 · #**177** 02-25-2009, 07:35 PM

I have a Hallman pro RX MBC. It is deadly accurate and impossible to break.

RBYCC · #**178** 02-25-2009, 11:15 PM

Quote:

Originally Posted by Turbo E320

I have a Hallman pro RX MBC. It is deadly accurate and impossible to break.

That's why I asked you what you were running not too long ago.
I like it because of the ability to adjust at lower boost levels.

Installing on a twin turbo and deciding if I want to pull boost off of just one turbo or tee the boost ports together to supply the MBC.

Thinking that the MBC will operate the waste gate actuators when either of the turbos reach the boost setting.
Not sure if it could cause a problem !

JayRash · #**179** 02-26-2009, 01:28 AM

Quote:

Originally Posted by RBYCC

That's why I asked you what you were running not too long ago.
I like it because of the ability to adjust at lower boost levels.

Installing on a twin turbo and deciding if I want to pull boost off of just one turbo or tee the boost ports together to supply the MBC.

Thinking that the MBC will operate the waste gate actuators when either of the turbos reach the boost setting.
Not sure if it could cause a problem !

I am pondering the same thoughts, and i am actually using one turbo to boost like 2 psi more than the other, with the KKK K16 the waste gate control is slightly different than the what u have. Each waste gate has an adjustment screw on it. same where set to the min, when i tired to adjust the rear it turned out to be stuck so i just upped the front turbo.

my assumption is that on a slight diff things are fine since the turbo thats boosting more although it will cause increased pressure on its 3 cyls, it will also mean that the lower boost turbo will be also facing more back pressure from the boost in the manifold. Meaning it will need to also work harder to boost thus also causing some increased back pressure on its own 3 cyls.

Maybe its all wishful thinking, but my engine revs smooth all the way to 6800RPM

Turbo E320 · #**180** 02-26-2009, 04:16 AM

The Hallman controller comes with instructions on how to hook it up to a twin turbo car. My dad's old college buddy has a Hallman with the remote knob kit on his TT 911.

So its: Vacuum source on charge pipe before intercooler-> Hallman MBC -> T-fitting