How do we get more power out of our E63?
I really think that there is a lot more horsepower under the hood, but playing with the ECU is the key.
Is there a tuner that will commit to a specific number, or are we just SOL becasue of the work required to get the results? And with all of the tuners out there, for those who have had the experience, which one is trusted the most??
I really think that there is a lot more horsepower under the hood, but playing with the ECU is the key.
Is there a tuner that will commit to a specific number, or are we just SOL becasue of the work required to get the results? And with all of the tuners out there, for those who have had the experience, which one is trusted the most??
For now I'm staying away from the ECU upgrades, heard too many nightmares. I won't mention who ..
For now I'm staying away from the ECU upgrades, heard too many nightmares. I won't mention who ..

I really think that there is a lot more horsepower under the hood, but playing with the ECU is the key.
Is there a tuner that will commit to a specific number, or are we just SOL becasue of the work required to get the results? And with all of the tuners out there, for those who have had the experience, which one is trusted the most??
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The 63 engine is no diferent than any other. It is only a year old , give it time. There is always room for improvement at the intake and exhaust levels with ANY mass produced engine. Companies have to deal with smog and noise levels that put a restriction on what they can do. I think we could expect a realistic gain of 15-20 (roughly 550 at the flywheel) rear wheel horse when a high flow intake is developed to go along with an exhaust swap and computer/ecu upgrade.
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Air filters in yet?


The 63 engine is no diferent than any other. It is only a year old , give it time. There is always room for improvement at the intake and exhaust levels with ANY mass produced engine. Companies have to deal with smog and noise levels that put a restriction on what they can do. I think we could expect a realistic gain of 15-20 (roughly 550 at the flywheel) rear wheel horse when a high flow intake is developed to go along with an exhaust swap and computer/ecu upgrade.
For now I'm staying away from the ECU upgrades, heard too many nightmares. I won't mention who ..

I know that Vadim is working his magic to get "real" power gains out of the 63 engine, however, I can't help but think that another 5%-15% lies in the ECU somewhere!!





Seriously though there wont be much you can do unless you got F/I of NOS.
I heard the next gen AMG will be a blown 550 Benz motor and not the 6.3 AMG unit.
http://perma-cool.com/Catalog/Cat_page10.htm
or this for trans
http://perma-cool.com/Catalog/Cat_page05.htm
If the torque remains fairly constant, there should not be a problem.....again ECU.......like compairing the cl63/e63, same engine same torque, but the cl has more hp....and it seems that MB is comfortable with that!!
If the torque remains fairly constant, there should not be a problem.....again ECU.......like compairing the cl63/e63, same engine same torque, but the cl has more hp....and it seems that MB is comfortable with that!!
I ask you to take a vote of people who really run their 63s. A single 1/4 mile run has a dramatic effect and it is about 1/10th of a sec on each consecutive run. I only suggested it because I am hesitant to mess with the ECU on a 63 (warranty issues) and the cooling is intended to reduce stress and HP loss (real world).
I agree that the high compression motor can get a nice bump from timing, airflow, and fuel. Just be careful.
Again,my only hands on experience with this is on my Jap sportbikes.They come from the factory making 165hp/per liter which is pretty damn high. Fattening up&re-mapping the fuel curve give minimal gains since nothing has been done to let the engine inhale more air.Adding a free flowing air filter&full exhaust and THEN re-mapping the ECU(by use of a dynojet powercommander)you can see pretty signifigant HP gains;8-12%.
I'm thinking this would be no different on our N/A 6.2L engines but I could be wrong
I agree that the high compression motor can get a nice bump from timing, airflow, and fuel. Just be careful.
Thanks for your suggestions.........!!
Thanks for your suggestions.........!!
Again, I am not comparing cooling mods to ECU ones on a 63. I just would NOT do too many performance mods on one yet.
I agree that the high compression motor can get a nice bump from timing, airflow, and fuel. Just be careful.
The issues I've seen have been with transmission. Again please don't PM me asking for who/where/what, if the people that had the issues want to I am sure they'll chime in.
As far as I am concerned, getting a .12 sec improvement on the 1/4 miles is just not worth the money/trouble/risk. (Rick's car has ECU + Headers + filter mod + drag radials) and his best time was only .12 better than the stock. Don't get me wrong, his car is amazing and sick, but you'd have a hard to convincing me he has more than 15 HP from the EDU if he's only gaining .12

The risk of getting blacklisted in basically worth about $10K to me, add the cost of the mods ($2K for ECU), I am just not seeing the benefit here guys.


