What was done to the TCU??????????I have had thoughts in that area, thanks Woody
Be Happy

 

Woody, the shifting-times are a little bit faster now, and the factory-programmed Load-Limits were set higher. Before the TCU-Tuning I had jerks under full-load from time to time. The jerks are gone now.

By the way, I have a special Option from AMG which is called the M-Mode. When I shift manually, the tranny holds the gear and does not shift at redline. For example when I'm in M-Mode I can give WOT in 5th gear, and the tranny does not shift back. Its fun from time to time to use the full torque without shifting back. But normally I drive in Automatic-Mode.
The M-Mode was a option which you could buy from AMG, but they don't offer it anymore. They now are more focused on the newer cars like the C63...

 

MHP is currently working on TCU and ECU tuning for the C32. They should come out with results in within a week or two.

 

Very nice custom work on the SC pulley, I wonder if your within the 181-183mm range in comparison? I don't remember what the code 3 size was. Your psi is almost the same as mine with just the 178mm asp.

 

Which MHP you referring to?

 

181 yields 18-19psi from what ive seen, my 185 is 20-21psi. What are you hitting with your 178 in say...50 degree weather?

 

18.40 max psi with the closest I got to 50 degrees. Still alot for just the 178. That was on my 11.97 run.

 

185mm : 74 = 2,5 Ratio, 181mm : 74 = 2,445 Ratio, My Set-up is 178mm : 71 = 2,507 Ratio, ASP 178mm:74mm = 2,405 Ratio, and Code3 (from my knowledge) is Stock 155mm : 65 = 2,384 Ratio, ASP 178 mm: 65mm Code 3 is 2,738 Ratio (which is a lot in my opinion, Stock is 155mm : 74 = 2,094 Ratio)

I think boost differ on every single car a little bit, depending on outside temperature, condition of the supercharger, little boost-leaks etc.). Also when you remove 2 of the catalytic converters for better flow, or use a free flowing exhaust, the boost should be a little lower.

 

this is their website: http://www.modernhorsepower.com/

here is the thread: http://www.mbworld.org/forums/c63-am...ning-myth.html

check posts 11 and 13

 

I have to interject that I am running 20 PSIG ON THE MANIFOLD with my 178. This is due to the dual inlet CAI which alone is good for 1PSIG gain due to the elimination of the 1 PSIG vacuum loss at the throttle body inlet and due to the gasket matching work I did on the intake manifold. See the posting I did on porting and matching from early last year.

This is in the 40 to 50 degree ambient range of temps. I also do not see that the removal of the second cats caused any loss in boost. I did not see this to be the case.

Woody Be Happy

 

Were your 2nd cats removed when you were at MIR? I am thinking about doing this, did you hear any exhaust drone in the cabin when you did this?

 

Good questions, no there were not done at MIR.

Work was done when the Data logger went in and I added stainless to the fastners for the exhaust bolts.

THe note became a bit louder, idle was without change as was light cruise speeds. No drone currently at all, That is nerve racking and a pain and I cant get rid of it in my 73 Challenger 6 Pac.

Hitting it, it is a bit louder and it helped the power a TINY, after I get the F/A problem / design fixed Ill dyno it to prove the concept and verify my approach.

See ya at MIR again I hope.

Woody Be Happy

 

Thanks for the info, I would guess you would see a 3 to 5 whp gain with removing those rear cats. I was hoping it would give a slight increase in sound on the outside without giving you a headache when driving the car on the interstate.

I think I will go for it in a month or so

 

Shoot if your down this way Mananssas Va, drop by you can drive mine to see if its up to your needs and if its a weekend you can use the lift, well have it in an hour.

Woody Be Happy

 

It does get a hair louder but not bad at all. I think its exactly what your looking for based on what you said above.

 

Seems like the new C3 "Mid-Size" SC-Pulley for the 178mm-Users is coming soon. Interesting how big it will be... I estimate something near 70mm.

http://shop.code3performance.com/pro...=3&productId=4

 

the lighter sc pulley and giving the options of different sizes is very nice!

 

interesting read.If they have been testing if for 6 months i take it LET probably has a tune for this setup that would be available also seeing they seem to be working together more