LZH

WOW - this is gonna be sweet. Can't wait to see what kind of times it runs.

Muskoka_AMG

video of new exhaust note at idle is needed asap!

PetroC63

Forget that, I may have to go and hear this in person.

Jons95c36amg

If only the AMG engine builder knew..

Mort

I am no cam guru by any stretch but generally you are correct. The closer the lobe separation the greater the overlap and the more aggressive the cam. Idle will be rougher and lumpy and the operating range of the cam will be higher in the rpm range. It will be harder to get the engine to idle smoothly and to get the car to accelerate from a stand still without using higher rpms.

Variable cam timing in our cars may if fact lessen the affect of lobe separation a little in the lower rpm range. Best of both worlds to an extent.

RobChang68

The new cams look top notch!! Any idea if MHP considered converting the lifter to the solid type? that would really make the engine more agressive in the upper rpm range....

propain

Sexual Chocolate!

"That boy is good!" "Yeah good and terrible"

Great movie.

Dads C63

Passenger side is done!!

propain

oh boy oh boy oh boy...

I wanna hear it when you turn it over for the first time before the tune! Make sure you at least record that!

CLK 2 GLK

Pull the manifold off and port that thing

Dads C63

Just an FYI - the cams WILL require a new tune. You are not going to want to start it without a new tune with new VCT tables.

FYI - Our intake manifold has NO room for improvement. AMG did their homework on that part. It flows plenty and trying to port it could actually hurt performance. Thats why no one will offer a ported intake.

MB_Forever

Did you happen to take a new baseline dyno of the car as it sits right now before the cams so you can compare dynos after the cams?

Dads C63

The car has been on the dyno freqently. It dyno's between 475 and 485rwhp corrected depending on the conditions. We'll see where it goes from here.

Dads C63

Teaser - Hot idle.

PetroC63

Keith, sounds great.

mthis

Tnx for the Vid sounds awesome. When u doing 60-130 run tonight

LZH

You can hear the difference for sure. Those test pipes are gangster - I say keep it that way

So what's being done now, Keith? Final tuning/data logging etc ?

Dads C63

We are waiting for the new tranny file so he can adapt it so I can bring her home!! We had to put a whole new stock tranny and converter in so it requires some new file. Won't have that until tomorrow. Hopefully pick it up tomorrow and get some hours on it and then the dyno maybe this weekend. Will keep you updated.

mr-flyer

Why did u need to change the whole tranny keith instead of just the converter?

LZH

Can you expand on the above bold...You had to buy an entirely NEW transmission and torque converter ???

Dads C63

Guys,
Please keep in mind how much track and dyno time this car has seen(over 26,000 miles). Then we slammed it with nitrous. It needed a refresh and the place I got the tranny from(rebuilt to stock specs and dyno tested) requires you get a new converter with it. If I am going to go back after the N/A record I wanted to start fresh.

On motor only this tranny is fine. We just killed it with the nitrous and over 700 rwtq at times. It didn't like that. Geeze, wonder why?? LOL

LZH

Makes sense !!! Thanks for the info, Keith and keep us posted. Can't wait to see some numbers from these new cams.

C63newdude

Dad63,

How much a new transmission cost(ballpark)? The only transmission that I am aware that holds inmense torque is the one from the V12 twinturbo engine but I bet it probably wouldn't fit plus it got to be expensive as hell.

I heard your cam iddle video and it sounds great, it sounds like apowerstroke turbodiesel with that exhaust but definately can hear the lopey iddle. Good luck with the project.

Dads C63

Interesting Update:
I have to start by saying that the mechanic that works on my car is an excellent professional but not a performance nut. He likes the car and enjoys working on it but doesn’t see the need for all the extra power. He called a little while ago and said the cams really woke up this car and that it is much stronger. Keep in mind he’s driven this car a lot and never commented on the power level. For him to comment like that it must be significant.

Its staying the weekend at Jerry’s because its seeing misfire codes because of the cams and MHP will have to get the misfire codes stopped or minimized because when it sees the misfire it shuts down that cylinder. It eventually keeps dropping cylinders until it won’t run. Needless to say it has to have more software changes. This is version 1.

It was comical to hear Jerry talk about the performance due to his personality and that he even noticed the power difference and commented on it. I am stoked!!

I know some will say this thread is useless without proof and I am working on it as fast as I can. You know I will post dyno sheets and 1/4 mile times as soon as its complete. LOL

SonnyakaPig

This thread is very useful. Thank you for taking the time to share your experiences with us.

Your cam videos sound great. And the test pipes look and sound amazing.

Take all the time you need to dial her in and then I'm sure we all can't wait to see what she runs at the track. I'm sure the NA record is within your reach with these new beautiful cams.