hachiroku

although, you'll have different responses for either, i prefer 4-1 headers. 8-1 collectors...now thats a thing of beauty. i run 4-1 on my personal vehicle, and also have my rev limiter set at 7,500 and at times 8,000rpm.

Jasonoff

What about just straight pipes with the OEM logs?

That's all I have done right now with the track car. I didn't want to touch the header bolts considering it's 9 yrs old and was winter driven lol.

hachiroku

your driving style will help you determine where you want your power band. stock headers may be ideal for your style and local tracks. a pure track rat M156 would ideally have its rev limiter set to 7,500-8,000 a taller final drive to provide shorter ratios, and everything else that you should add for higher rpm operation headers included.

Jasonoff

If I bother headers later on it would likely be ARH.

VektorPerforman

Personal preferences always come into play, but you tune these cars too. So is your preference based on the 4-1 helping with high RPM improvements? Or do you feel the 4-2-1 just does not improve the area under the curve as much?

Surprised there isn't more comparative data on these cars with headers like you see with many other performance cars. The common 4-1 'long tube' headers are not long by traditional standards (considering bore, stroke, rev range, etc..), and common 4-2-1 seem to have excessively large primaries with odd step and primary-to-secondary ratios. And I've yet to see one of the common headers (of either type) that actually merge in the correct firing order.

deadlyvt

Generally speaking the 4-1 will make more top end power compared to a tri y which will make more low end and power under the curve. On these cars I’m not sure anyone has done a side by side test to see if there is any noticeable difference

VektorPerforman

That's unfortunate

hachiroku

...

hachiroku

Hi All,
Just wanted to update the thread with links to reviews from some of our fellow MBWorld members!

@PeterA90
https://mbworld.org/forums/c63-amg-w...hachiroku.html

@KXC
https://mbworld.org/forums/c63-amg-w...hachiroku.html

@SikC63
https://mbworld.org/forums/c63-amg-w...ysixtuned.html

@thebug44
https://mbworld.org/forums/c63-amg-w...ml#post8289747

Jasonoff

A reviews section in your first post would be a good idea

hachiroku

melt your tires with a tune from us ...literally, you'll have that much power.

BalanBro

Out of curiosity, would you be able to do anything in your tune to help with the inconsistent or sometimes lack of rev matching on downshifts, especially at 2k or less in M mode? If I let the computer downshift on its own, it usually does a much better job. In manual mode, it rev matches less than 50% of the time under 2k RPM, and sometimes engages so hard that I hear the tires chirp.

hachiroku

I don't personally have a C63 but every one that I have tuned has reported back that all shifting is better than factory and is just perfect. @thebug44 would you be able to answer his question?

radvinb

How is the 3.06 final drive tune coming along?

hachiroku

good question, honestly have to many projects on the front and back burner to focus on the 3.06 final drive retune, but that is something that can only be offered in person if I eventually am able to offer it. it's something I still would like to offer just don't have a timeline for it as of yet.

Slow_c63

iTrader: (1)

I will be hitting you guys up as soon as my headers mid pipes and x-pipe arrive from MBH. 2-3 weeks ia what I was told for build time. Crossing fingers.

BalanBro

Thanks for answering the several questions I've posted. I'm trying to justify the cost of the HPTuners platform to myself. The cost itself is not an issue. In fact, I think it is very fair for the work you seem to have put into this. The tough part is doing it over again after spending good money on the MyGenius unit and V7 tune, and then a bit more when I booked a local dyno tuning session with EC. I wish I had done more research on tuning options before I had committed, but oh well.

I really like the HPTuners platform. I also like that it supports so many manufacturers, making it a good investment in the long run. If I do go this route in the future, I will be purchasing my own MPVI2 since it supports all the vehicles we currently own. On that note, due you tune other platforms or do you stick to MB only?

hachiroku

@BalanBro , sure. although, I am not one to say this or that about another tuner, what I can tell you and what others will tell you if you ask, is that my tunes are not comparable to any other. simply cannot. the difference literally is like going from a civic ex to a civic type-r...the change is that drastic and performance oriented. my tunes will make you fall in love with your car harder than you've ever felt, because there is no greater mass produced naturally aspired v8 on the planet today. 6.2L mass produced that produces the torque and power...none...

hachiroku

oh sorry, to answer your question about tuning other platforms. the bosch motronic 9.7 computer that we have powering the M156 and M159 engines is a very complicated computer that took me a year to understand fully. assuming i will not need to dedicate that much time to reverse engineer a computer to understand it, sure i can tune any other platform that HP Tuners supports. some will require the same effort, some will not, but if you want me to spice it up if its a straightforward computer feel free to reach out.

swedepat

So,, 2000dollars for about 18 torques and one hp...
Seems legit! *lol*

Ok,, more response, but if bying hptuners i can easily remap throttle to 1:1, then remap it as many times i want.
Yes,, i have knowledge of remapping cars.

Pass on this!

Slow_c63

iTrader: (1)

.... what???

hachiroku

thanks for your thoughts. by all means, you or any of my customers can tune their own cars. my tuning service is a service. thanks for your thoughts and I wish you well on your journey.

hachiroku

get you more power of which you won't be able to use because you have too much.

DRBC43AMG

Some people are never satisfied with too much, until they explode the mechanicals or drive off the road

hachiroku

make it hot...hot like spring into summer. please reach out through email as for a limited time we are discounting our tune service to welcome the warm weather. please inquire directly at info@eightysixtuned.com !