blownM156

any updates??

AMGSC

Car runs great. No hiccups whatsoever. Over 512rwhp on low boost and pump gas. At this point, I am satisfied and will let Blackbenzz set another record for a 55 motor. Not chasing any records anymore. Just enjoying the reliable, comfortable power. Definitiely an upgrade over the great Kleemann Autorotor.

I will post up of quick vid of the motor running and you can hear how smooth the idle is and how nice it revs. Will take her to the drags in October and run my E46 turbo against this W203 SC to see how they compare on the quarter mile strip.

swedepat

Isn´t that a sort of anticlimax for those who built the setup?
Never use full potencial i mean.

Rgds
Patrick

suicidal4life

Good to hear. After all the trouble you've gone through from HPS to Vadim to god knows how many other shops it's about time you get a decent running car you can enjoy.

betrezra

Amgsc- I'm with you 100% on building your car to xxx hp, but the operating at 85% of xxx.

I enjoy my blown clk everyday to from work. Vs 10 - 10 sec blasts then kaboom!

I'll buy a mustang for the ragged edge.

AMGSC

Thanks for all your feedback. Steve actually asked me if I wanted to add more boost by installing their modular crank and smaller SC pullies along with a ECU retune. It certainly has the headroom to make amazing power!

If I wanted to push this vehicle to the limits, it might be interesting but now I am thinking of buying a new vehicle although not sure if it's going to be an M5, RS7 or AMG CLS63. I need to find out which has the most mod potential before pulling the trigger.

I will still keep my C55 and M3 as I love them both and would keep them till they fall apart.

G55K

How much power were you making with Kleemann?

AMGSC

Around 485rwhp but there were 2 major issues.

1) MAF could not accommodate 17+psi. Even the voltage clamp didn't help enough.
2) SC was spinning too fast causing the coupler between the pulley and the shaft to disintegrate. Once the belt also disintegrated while on the drag strip. Should have had an extra belt with me that day.

Litre for litre the Autorotor is more efficienct than the Whipple but the 3 litre displacement of the Wipple does not require the same boost levels to achieve the same or greater power than the Autorotor.

scrwmpwr

Good detailing and photoshoot to celebrate the completion of the project at long last?

Newzchspy

That's about where I am at NOW with the help of Speedriven and Blackbnzz. I've got the Autorotor and am happy with the reliability as a DD. Any more and it could go kaboom..........
The ONLY way I could get more is to wire in a E55 box and get rid of MAF, but that's costly and time consuming!! The MAF is really the big limiting factor on the C55 mods.

swedepat

I got no problems whatsoever with MAF on my setup, I´m boosting 12psi in an engine with 'high flow', (on an std M113 the boost would have been a bit higher).
I enlarged the MAF to 98mm and capped the signal to 4.76v in AEM FI/C.
The 'lost' fuelmeasurements is then calculated through AEM´s internal MAP sensor and fueltables.

So honestly, there´s no problems boosting with MAF, Kleemann only choosed the wrong setup.
Kleemans fuelsystem is also a big joke..

91RS

Indeed.

AMGSC

Very clever! But you had to go piggyback or standalone ECU with the AEM?

I wonder if Steve@Weistec can do this on the stock DME/ECU? I will ask and see if I can bump the boost to 17psi. Then this car could be in the high 600 rwhp!

swedepat

Hi.

The AEM FI/C is an piggybacksystem, and if setup correctly it works just fine toghether with std ecu.
It´s very common here in Sweden to adjust Airmeter size to stretch the maps upwards or downwards to get the correct air/fuel ratio.
In my case from 74mm to 98mm is a 32% increase in area for airflow.
I thought it would be enough when i calculated when i chose the setup, but i thought i had a 2litre kleemann at that point.
I´ve got a 2.2 litre so it pumps a bit more with the same gearing.
But it wasn´t any problem, i just capped the voltage from airmeter with the piggy.

BUT!! i have to enlighten a small problem that could occur.
when increasing size on airmeter the voltage gets lower, this can mess up the gearbox a bit when cruising at low speeds and small throttleopenings, jerky shiftings.
this can also be adjusted in the piggy.
Actually, kleemann theirselves got their hand on a great piggy when they bought 'xtra company', xtra had developed an own piggy.

This is actually a very easy way around many problems with std ecu.
All functions in car is still working, and still you can fiddle around to get insane amount of power

byujakedmb

Any word on if/when this will be made available to the rest of us?

2MCHCAR

MAF is currently my limitation so it's great to hear that someone have found a way around the issue. Since tuners are no longer working on the older cars anymore, the Mercedes community has to pickup the slack.

If you have any other technical information on your setup, please let us know!

swedepat

I don´t want to smear down this thread with my car too much, i got a thread with a lot of info, 'new supercharged c55....'
But you can have a video, here boosting about 12-13psi, but running a bit rich(10.8-10.9 in AFR, so i´m a bit down on power) as i was testing ignition a bit this weekend(sparkplugs etc etc as i had misfires before when running a bit rich, all gone now)
https://www.youtube.com/watch?v=H_AG...ature=youtu.be

BE WARNED!! high soundlevel in the end with nephews Volvo in dyno.

blownM156

anyone Know how much power this made?

knowbenz

God forbid you read the thread.

AMGSC

So far the car is running PERFECT! Car is so fast it is scary so not sure if I really want to use a Piggy Back to push it even further. Both cars are in the high 550rwhp now with pump gas. But M3 is 700+rwhp on race gas since it has a second tune with race gas and higher boost. M3 also runs smooth as silk but has the same jolting power when I stomp on it.

blackbenzz

Head to head race on pump gas vid

Quickvr4

+1