Weistec

M156 Naturally Aspirated ECU Upgrade, Stage 1

As a leader in tuning and calibration, Weistec Engineering is proud to release tuning packages for the naturally aspirated M156/M159 vehicle lineup. Our ability to successfully innovate and create the world's first 50 state legal supercharger system for the 6.3L AMG has allowed us to further identify and understand the complex factory modules.

We have created a strong yet reliable tuning solution that utilizes the same calibration technology that has been applied to our Supercharger System. With a keen understanding for optimal running conditions for the M156, we have revised many features of the ECU which creates an astounding 441 horsepower to the wheels on 91 octane.


The Weistec Upgrade Promise

Customers who purchase our ECU Upgrades will receive credit towards the purchase of a Stage 1/1+ Supercharger System, if you are thinking of supercharging your car in the future and are not ready for the purchase, this is a good way to not spend money twice, while making more power right away.

Have a problem with your current tune you purchased from someone else? Send in your ECU for a free diagnosis.

Key Features:

• +47 Wheel Horsepower
• +32 Wheel Torque
• Eliminate Top Speed Limiter
• Increased Throttle Response
• Optimized Fuel and Spark
• Credit towards Stage 1/1+ Supercharger Systems

Introductory Price: $990

http://weistec.com/m156nas1.html

dodger63

Looks great, nice price

Mort

+1

solekeeper

i'm curious as to how much other tunes put down on a STOCK car.. I see people with all different tunes, different numbers etc.. I just want straight forward answers.

very nice numbers nonetheless.

JeffDL

You can't have one. A dyno is a tuning tool not a machine to produce numbers. Every dyno is different and even the same dyno will produce very different numbers depending on the day.

solekeeper

your right, but i'm sure those cars have a ballpark figure within 5-10 hp of eachother.. that's what I want to know.

MB_Forever

While these are very impressive results, and I respect Weistec Engineering a great deal, gaining almost 50 whp from just a tune on the NA E63/CLS63 platform(s) is a bit unrealistic. In my opinion, the car that was dynoed may have been down on power for one reason or another. I've seen stock E/CLS 63 models dyno in the 410 to 415 whp range.

Great product either way...

_AMG_

+1
50whp from only a tune on the E/CLS is unheard of.

jacob502

I dont agree. Carlsson are able to get 45whp for the SL63. Lots of German tuners as well.


By the way, this is a US spec car. They stated that they upgraded the intake and dropped some filter (pretty sure they deleated the charcoals too). Therefore, thier gains seem realstic. Weistec dont usually post BS. You get what you see and even better.

Sincity

Hopefully someone will do an independent dyno soon. Best I could do on K1, ROW box tops and K&Ns was 421 on a DJ. Too bad I didn't do a baseline.

Merc63

Any tunes for long tube catless headers?

MB_Forever

Nowhere in their post above did they say or mention anything about upgrading the intake or changing filters. If they said it somewhere else, then it should've been included in the first post of this thread as well. In fact, in the dyno graph image posted above, it states, and I quote, "completely stock E63". My definition of completely stock is 100% stock. Any change (even filters) would make it "almost stock" or 99% stock car. If charcoal filters were deleted and/or aftermarket air filters were used or any intake modification, it was definitely not mentioned in the post above

If they did indeed change filters or upgraded the intake, then there is 10 to 15 hp that could be attributed to such upgrade. This leaves the tune only gain with 30 to 35 whp, which puts the gains in line with almost every other tuner: OE Tuning, RENNtech, MKB, MHP, etc...
So my concern still stands.... gaining almost 50 whp (which equates to almost 60 crank hp) on the E/CLS 63 platform from just a tune only is a bit unrealistic - even for German tuners

Here is their post again if you would like to find any mention of the intake upgrade and filters...

I am Jeff

Its subtle, but look at the chart. "drop in filters" are mentioned in the dyno sheet.

jrcart

Nice gains

Sincity

Wouldn't the exhaust diameter difference in the E account for a slightly higher gain? We really need to see this done on a stock C63.

mthis

I could be wrong but from what I know the 08's and 09's have smaller diameter logs an exhaust piping. 2.5 to 2.75
And the 2010's 11's 12's have the same logs as E's cls's and the piping 2.75.
P31 c63 Dyno as high as 433 with the new MCT the 11's I saw the highest 425rw.


Btw great gains to Weistec good job gents.

c32AMG-DTM

The stock E63 tune isn't intentionally TB limited like the C63's stock tune. Non P31 C63's see the greatest pre and post tune deltas of any M156-engined AMG, as a result.

Sincity

Hagi: A year or so ago, I cross-ref all the logs on '09s and they were the same for all M156 variants. The back half of the exhaust had larger diameter piping.

Sincity

So was a supercharger a year ago.

We'll see soon...... LZH is planning on getting the tune for his BS.

sack5000

bump - any actual before and after dynos done with Weistec upgrade to ECU?

ecampbell

I would look in the first post for the graphs which have been overlaid.

xtyper

I think he meant independent customer results.

hworang00

Can't wait to get this done on my car...what's the turn-around time on the tune?

C63 Guy

It's the real deal.

Josh

xtyper

I keep hearing that, but I wish we could see some independent results to back it up. Honestly, I have been thinking of moving to the Weistec tune, but I'm hesitant of the spending the money until I see proven results.