JAYCL600

Renntech has been doing this mod for a couple of years now....its an IHI supercharger, the one AMG uses if my memory serves me correct, I looked into it at one time for my W210 E55, its also MAJOR money to do the install, they have to lower the compression of the engine. There was someone selling the units by themselves on here a few years back also. Ill see if I can search and dig it up. Here is the original post, with the pictures removed for some reason: https://mbworld.org/forums/w211-amg/30913-close-up-kompressor.html

Jason

ProjectC55

Nice.If you lean it out to 13.0:1 you will have even more pwr. See my #'s down below(sig) with a Stck E55 ECU and E55 ESP ABS module.A/F was at 12.5 to 12.9. I'm so surprised that his car ran as rich as 10.0:????stck.

New dyno with superchip custom tune is coming up soon when the body shop is finished with my car.I understand with the superchip tune ,Steve (c55m8o) put down 307whp 320ft-bs of TQ Superchips!I will ask him to scan his dyno. Like I said I think the Powerchip and Superchip programming is very good.Vadim I think the Powerchip is what you guys use right?I think both chips are excellent upgrades.Mario(E55cent) has had good success over there in Cali with the Powerchip in his 1999 E55.


Keep in mind that Steve's chip was customed tuned and I'm using the same exact chip he has.We have a guy over here on the East Coast that does custom chip tuning for Superchips.

Dan Wang

This is not a recent picture, but it is something I had stored on my hard drive.

Tuning is still be sorting out. F/I is turning out to be really tricky. I was running really really lean and the knock sensors were shutting down cylinders, so I had to redo some of the fuel management. I just added a boost a pump onto the fuel pump, and added a FMU from Kenny Bell to keep the fuel return line closed up a little longer than stock.

Enjoy.

Vadim @ evosport

coolcarlskiC43: Stock cars are usually this rich. My guess they are trying to be as conservative as they can be. Customer was going to go with exhaust and play with airbox, so we left a little more fuel in it.

Dan: Renntech has been doing AMG kompressors for several years now. I can not believe they have not finished tuning them yet.

FMU will work, but start with 6:1 ratio. Find a Mustang shop that has a dyno and knows how to tune FMUs and you should be able to get close. Good Luck!

Dan Wang

Thanks Vadim for your help. Josh at HOP has a dyno and we are going to try a voltage clamp on it first. Our goal is 4.9v clamped. The software that is on the car now was supposedly custom tuned by Oliver @ Renntech, but never tuned on the dyno. Furthermore it is clamped at 4.5v through the use of some resistors on the HFM. If the voltage clamp doesnt work, I am going to reflash the software back to stock.

My two thoughts are that Renntech most often sells off the shelf pre-programmed software. The software is probably ok, but was most likely tuned on one car, and then sold to the masses. I really dont know for sure.

mtimmy

I am on the same boat as Dan

I have a wideband O2 sensor installed before the cat,. after the header.
and I am recording as high as 16:1 at 4psi.... the car constantly run at
4.3- 14.7 at no boost to idle........ so I can't see why the stock cars are running as low as 10 a/f


I already have 12:1 fmu installed., and piggy backed the MAF,. gonna do some convertion to the fmu to give out more static boost

btw. any guys know what is the currect injector size on the 208 55
AMG?

I am thinking going for larger injectors

mtimmy

Dan.,

this is something Tony at superchargeronline.com put together for me to raise the static pressure for the FMU unit.

http://www.superchargersonline.com/p...=SODC-FMU-CONV


P.S if you gonna buy it., make sure to tell TONY that you need a 12:1

AND SERIOUSLY!!!.. .any body know where can I get a custom software in Cali area.,?

ProjectC55

No,but there is a guy here in the NY area that does custom tuning.

c55m8o

Yup ... I got it too.

mtimmy

NY.,.,., thats 6 hours flight away from California.!!!

sad.,!

ProjectC55

Ahhhhh the Ecu won't mind the flight!

mtimmy

that is true but.,the ECU won't mind to fly down there., but I never believe someone without the actual engine would be able to tune the ECU correctly!...

coz, I have a custom blower installed with 7psi...... ... only if he did something like that before., if not he would need my engine.,,. too

Dan Wang

Tim,

There is Laney at Upsolute that maybe able to help us. We will have to convince him to custom tune our cars at an actual dyno location.

Dan

Dan Wang

Also this might be a good solution for you.

http://www.vortechsuperchargers.com/.../fmu_sfmu.html

Super FMU, stupid name but I hope it works.

mtimmy

Yep that was what I've been looking at earlier., but at that price. ,it don't seem worth the money,.

There is a digital one at around the same price., which can be set by using a computer

Dan Wang

Well, the voltage clamp was installed today. A/F ratio is better (in the mid 12's). Power is still not where I want it to be. I need to flash the software back to stock to have a good baseline to work off of. The renntech software pulls timing way too far back.

mtimmy

Hey dan.,.. what is needed to flash the renntech in there?

I am intersted to test it,.

and as far as the voltage clamp goes.,.,

where did you clamp it

Dan Wang

Renntech actually programmed the car on the spot. hence, my whole doubts on renntech's software. They have yet to come through yet with anything positive. I have tried 2 different software versions and neither have worked.



Description
The VC2 Voltage Clamp is designed to condition the output of voltage based air flow meters, MAP sensors and mass air flow sensors. It is often used to avoid fuel cut in forced induction applications. Under normal operating conditions, the VC2 outputs a signal that is identical to the signal present at its input. When the voltage of the flow signal reaches the internally set clamp level, the VC2 maintains a constant output voltage at the clamp level as the input voltage rises. The VC2 differs from the VC1 by offering a hard clamp function that is user adjustable. The hard clamp allows the output to track the input right up to the clamp voltage. Once in clamp, the VC2 maintains the clamp level with high accuracy regardless of overdrive.

mtimmy

I highly doubt that too.,., because their software is not build for your system., and it won't work correctly ., ..

mtimmy

Dan

what I oringially meant., is ., what voltage did you clamp the system.,

coz I understands that the ECU will go in to safe mode if the MAF goes higher than 5V

ProjectC55

He read the files,sent it to an engineer here in NJ.Burned a chip(He socketed my board which was pretty Kool).Installed it.We then dynoed the car.He got the whp and A/F. Read the ECU again and made more changes.I drove it this time on the road and she's a monster.

mtimmy

Thats SICK!.... I need to know this man!!!!.,

can you kindly give me some info about him.,, contacts and charges?

Dan Wang

4.95v

mtimmy

4.95V ., yep., that the highest voltage you can get....

So is your system running 12 A/F all the way up now?

Dan Wang

A/F starts at 14 then dips down to 12.5 then comes back up to 14 around 4500-5000, then detonates, then the DME trys to add it back in.

I am going to try colder plugs to prevent detonation.

Higher Octane gas definitely helped (approx 12hp gain because it wasnt detonating as much).