190e m103 supercharger almost complete - PeachParts Mercedes-Benz Forum

benzito190 · #1 01-15-2005, 03:37 PM

Well, I have all the mounting brackets finished, and have a newly welded upper trans cooler line to clear the pulley on an m45 blower from a c230 kompressor. Now that most of the fab work is done, I'm wonding if anybody has any suggestions on what to do with the fuel system, with a boost referenced fuel pressure regulator, should I need anything else on the mass airflow based cis-e jetronic setup on my car? I'm looking at a solid 210-220hp with the pulley ratios that I'm running (sc will be running @ 14,500rpm @ 6000rpm on the motor), and I'm pretty confident that the cis can support it, any body have any doubts aimed towards the cis setup for under 230hp applications?

Rgaling · #2 01-17-2005, 09:27 PM

Contact Split Second; www.spiltsec.com

They have several options in controlling fuel delivery with force induction.

benzito190 · #3 01-29-2005, 11:48 AM

Well, the supercharger is on the car... it's on the belt drive, and the bypass assembly is done. Runs GREAT! Looks like the lil m45 was enough to wake up a 190e after all! The power delivery is Very smooth, it feels basically like a much happier naturally aspirated engine. It doesn't deliver quite as much increase in power up above 5000 rpm, but the diufference from 1800-4000 is really noticable, the m103 was kinda anemic down low, now it feels like it's got an extra liter under that cylinder head below 3500rpm. I'm quite pleased with the setup, and if anybody's interested I'd be happy to share some info with you and post some pictures or something. Total cost of the project to date was about $400-430: $220 for the m45 shipped off ebay, $30 for the air filter assembly, About $50 in gas welding wire, and a couple tools, $50 worth of steel, $30 for a belt, a free toyota tercel throttle body turned into a bypass valve, and a few bucks for misc. stuff like gas to drive around buying parts. Best $400 I ever spent.

Bill Wood · #4 01-29-2005, 11:59 AM

Post some pics!

Chamorro · #5 01-29-2005, 02:21 PM

More details. How much boost? Did you change anything of the fuel injection system? Where'd you mount the SC?

benzito190 · #6 01-29-2005, 07:02 PM

The sc is mounted on the pass side. I made a bracket that bolts to 2 of the forward exhaust manifold bolt holes, a timing cover bolt and a valve cover bolt, so the eaton blower lays an inch or so over the exhaust manifold with the bracket acting as a heat shield. The outlet aims back then turns over the valve cover with a toyota tercel throttle body and a vaccum actuator serving as the bypass. I just bolted a home-welded flange to the top of the cis maf (2 small bolts hold it onto the maf). I haven't gotten a good reading on boost, but if my math is correct I should be somewhere between 4 and 5 psi. No mods to the fuel system, I just ran the vaccum line from the regulator into the cross tube behind the bypass to give some sorta reference pressure for the fuel system. I'm really impressed with how the jetronic setup is handling boost... no flat spots, no pinging, and the exhaust color around the muffler is just about right (hopefully that means the F/A ratio is staying solid). Desktop dyno estimates it @ 210-215hp with a flat torque curve from 2500-4800, so it should kinda simulate a 190e with the m104 as far as power goes... I'll get some pics up tomorrow once I have a chance to get my cheapo walmart camera under the hood.

Devonic · #7 10-08-2006, 06:09 PM

Quote:

Originally Posted by benzito190

Well, the supercharger is on the car... it's on the belt drive, and the bypass assembly is done. Runs GREAT! Looks like the lil m45 was enough to wake up a 190e after all! The power delivery is Very smooth, it feels basically like a much happier naturally aspirated engine. It doesn't deliver quite as much increase in power up above 5000 rpm, but the diufference from 1800-4000 is really noticable, the m103 was kinda anemic down low, now it feels like it's got an extra liter under that cylinder head below 3500rpm. I'm quite pleased with the setup, and if anybody's interested I'd be happy to share some info with you and post some pictures or something. Total cost of the project to date was about $400-430: $220 for the m45 shipped off ebay, $30 for the air filter assembly, About $50 in gas welding wire, and a couple tools, $50 worth of steel, $30 for a belt, a free toyota tercel throttle body turned into a bypass valve, and a few bucks for misc. stuff like gas to drive around buying parts. Best $400 I ever spent.

Anything you have would be awesome!!! I am trying to this on my 2.6 also! I was told the m62 would be a good supercharger to use also, would this work with your setup? If not, oh well...
I would like to get pictures and whatever else you have that I can get my hands on so I can do this on my car! It's alot better than paying thousands of dollars for thats for sure! If you can give me step-by-step instructions (with or with out pics, pics are a plus though

) you'd be a god to me!

benzito190 · #8 10-10-2006, 12:44 PM

Even the m45 generates knock problems on the 2.6 m103 on california pee pee gas... I would stick with an m-45 and keep it reliable unless you are planning on major work like dished pistons, gasket spacer, chamber re-shaping. An m-62 probably wouldn't pose a problem on better gas, but cali gas sucks, and european gas is better than domestic gas. The low end puch and power throughout the range was MUCH improved with the m45. The m104 is a larger displacement, and it's a more advanced engine with better electronics and better combustion chamber design, so it may not run into the same problems with a bigger m-62.

I have since switched to a t3/t4 turbo (I welded the manifold)... though I am seriously considering building sc and turbo kits if the demand is there. In the meantime, I am stripping the turbo/intercooler setup off the car so my dad can drive it (CA smog legal) to work and back... I bought a subaru to play around with, but I still LOVE working on far superior benz cars. In any case, both the sc parts (sc, bracket, outlet manifold, belt, etc.) and turbo (tc, exhaust manifold, intercooler, blow-off, etc.) parts are for available and I'm sure a price could be negotiated.

Devonic · #9 10-10-2006, 06:49 PM

Quote:

Originally Posted by benzito190

Even the m45 generates knock problems on the 2.6 m103 on california pee pee gas... I would stick with an m-45 and keep it reliable unless you are planning on major work like dished pistons, gasket spacer, chamber re-shaping. An m-62 probably wouldn't pose a problem on better gas, but cali gas sucks, and european gas is better than domestic gas. The low end puch and power throughout the range was MUCH improved with the m45. The m104 is a larger displacement, and it's a more advanced engine with better electronics and better combustion chamber design, so it may not run into the same problems with a bigger m-62.

I have since switched to a t3/t4 turbo (I welded the manifold)... though I am seriously considering building sc and turbo kits if the demand is there. In the meantime, I am stripping the turbo/intercooler setup off the car so my dad can drive it (CA smog legal) to work and back... I bought a subaru to play around with, but I still LOVE working on far superior benz cars. In any case, both the sc parts (sc, bracket, outlet manifold, belt, etc.) and turbo (tc, exhaust manifold, intercooler, blow-off, etc.) parts are for available and I'm sure a price could be negotiated.

Like I said in my email: You've got a buyer! You let me know what sounds reasonable and will work something out. Thanks alot!