ahmed18881

hi everyone been a long time since i posted, been busy modding ,

finally after several tries and different stock TCUs we got the 3.07 differential to work flawlessly on the V8 430 engine, my friend Ali Saklaoui (automotive engineer, member here has a brabus 3.8s w203 and a c32) made it all happen he got it to work on the engine flawlessly and he also coded the AMG Speed Shift on the TCU. After several researches and overnights Ali worked his magic on the car...

here is how my day started

* woke up on 7:30am
* went to Ali's Shop on 7:45am
* drank coffee small talk until the techs came at 8:10am
* 2 techs worked on the car at 8:15am (swap New ECU + 3.07 Diff from a w210)
* techs finished 9:10am
* test drive with ali (he scared the **** out of me)
* big grin on my face since then

the car shifts very fast and this is the first time i feel i am in the right gear always!! 1st gear finishes at 53 km/h instead of 65 km/h and 2nd gear finishes at 102 Km/h instead of 124 km/h the car is blast to drive, its very responsive now and the speed shift is just amazing!!! there is absolutely no lag between gear shifts !!! and the nicest option that it doesn't hang on a gear it shifts up, simply i put it in the first gear press full throttle with esp off the car literally launches into action and shifts up all the way

i will try to get decent 0-100km times on a g-tec pro soon

JYOO

NICE, sounds like fun! So this is on a 430 right? whats the stock gear ratio on the 430? Imagine it with like a 355 or 373 ratio, that would be real fun.

MarcusF

The CLK430 has 2.87, the 55 has a 2.82, and the 320 has a 3.07. The W210 320 has a 3.07. The W210 430/55 has a 2.82.

2PHAST

I run a 3.27:1 diff in my CLK, not sure how it would hold up in a V8 though, since it comes out of the W202 C230, just a idea.

ahmed18881

we also tried this scenario, it is too short for the V8 transmission ratios, but very nice for drifting but 2nd gear finishes on 85-87 km/h which is very annoying ...

AMS Performance

3.07 is the highest you should go on a 430. honestly though I think 2.82 is perfect ratio for the 55s, you want longer gearing with extra power & torque, but for 430, makes sense to do a diff upgrade b/c it doesn't have nearly the same amount of torque. Nice Job!

marv85

I actually went for a drive with ahmad, the car is amazing. You can feel the difference due to final gear change and due to TCU upgrade. The car shift reallly fast relative to a stock 430.
Let's see what happens on monday (i hope, tuesday max ) i already booked my ride

acb3nz

Sounds great, i want to do this also...

sick430

hey bro,

what was done to the ecu and to the tcu to get this to work!
i want this!!!

thanks

2PHAST

Good point, forgot about the gear ratio differences between the V6 and V8

ahmed18881

i am making this a surprise so keeping my fingers crossed, the car is under going the "major" operation from 2 hours...

ali saklaoui

Hello

gregory13lil

I have a question about the differential install. My CLK430 diff is starting to make some noise so I think I need a new one. But, instead of buying another 430 diff that has 2.87 ratio I am thinking about copying you and putting a 320 with a 3.07 instead.

What car model would I have to pull the 320 differntial off from..a CLK 320, E320, S320???

Also, can I just install it without any other mods or do I have to have something reflashed in order to make it work properly? What else would I have to do?

What is the new top speed with the new diff?

Greg

Josh K

My Vortech supercharged car would be insane with a 3.07...

hats off to you ahmed

:0)

MarcusF

I believe it's the same as your current top speed. All four individual wheel speed sensors are used to calculate vehicle speed. If there is no significant difference between the sensors (as there would be in a curve), the left front wheel sensor data is used. In any case, neither the transmission, nor diff plays a part in the ECU cutoff.

blackbenzz

I was told the later model C43 diff will bolt in to a CLK55 and give you the 3.07 gears. You also need to swap TCU's with the C43 and you have to make sure it is EGS52 if you have a tip car. Everything is supposed to be plug and play. The pumpkins from the V6 cars are smaller and inherently weaker than the bigger v8 ones