HPS S/C for V8 5.5L
I got this info from a former master mechanic at Flecher Jones MB and also rich kid son of the owner of my 120 million dollar aerospace company who has a stable of performance cars (Vipers, Porsches, Benzes, MBs, Vettes, Old Chevy and Ford Muscle Cars, etc.) that have been heavily modded by himself generating more than 900 HP.

I myself don't doubt the HPS Gen II kicks ***. And it's a great bargan too. I just can't stand everyone's policy of adjusting rear wheel measurements to account for transmissions losses and state their derived crank figures as "fact" ; when it's nothing more then an approximation. I received a dyno graph from Kleemann of a C43 many years ago; same thing. Measured rear wheel torque and hp is the only fact. We all know the baseline of the 5.4L engine in one of these cars pretty well so can draw accurate conclusions as to the gains...
Any place with Dynojet can work. There are probably 10 Dynojets in 50 mile radius of OC.
You Won a Free Dyno from Josh/HOP and were going to get the dyno done until Josh stated NOW we will see the real Numbers...Then YOU declined the Dyno..
Im Done.. bring it over and I will Pay for it..
Ok Mark, you've enough times to think. Vadim's shop, you pay and I'll bring it. "Just looking for the REAL story....FACTs...No blue Sky!" Like they say "put up or .........." .You decide !!

My Offer still stands...Dyno Roberts AMG s/c car ..and Yours at HOP in Huntington Beach...No Games...Last Time...The Offer is for AMG s/c and your hps car...
We can even make it a GTG for all to see!
Vadim does NOT have a Dyno shop...Nor does Vadim Work for Evo Sport..
Yes I will pay for the Dynos as posted SEVERAL times...@ HOP in HB
Let me know when You will be there and I will stop on over..
Call HOP and set it up!.....or
Like they say "put up or .........." .You decide !![/QUOTE]
Like they say "put up or .........." .You decide
Thanks.
Dynojet can not be manipulated.
Drum weight is fixed and weather station can be verified.
I am now independent and have no affilaition to anyone but myself. And I do not make SC kit for MBs.
The Best of Mercedes & AMG
I can be there to confirm the results. Please talk to Josh at HoP and set up a time. I will arrange my schedule correspondingly.
Thanks.
How about 12:30pm (February 1st-Wed) during my lunch hour? Please PM SUPERC55 and ask him if can bring his ride. I will ask Bill or Adam from HPS to be present as well.

I myself don't doubt the HPS Gen II kicks ***. And it's a great bargan too. I just can't stand everyone's policy of adjusting rear wheel measurements to account for transmissions losses and state their derived crank figures as "fact" ; when it's nothing more then an approximation. I received a dyno graph from Kleemann of a C43 many years ago; same thing. Measured rear wheel torque and hp is the only fact. We all know the baseline of the 5.4L engine in one of these cars pretty well so can draw accurate conclusions as to the gains...
1) Can the sensors be adjusted similar to adding a tare weight to a scale?
2) How can you tell if a dyno has been edited? What do they typically edit?
3) I understand if the dyno was converted to Excel but if it is simply a image file then how do they do it?

E55Cent
Super Member
E55Cent's Avatar
Join Date: Nov 2004
Location: Ventura, CA
Vehicle I drive: AMG 55
Posts: 599
https://mbworld.org/forums/showthrea...=130280&page=3
Dyno'd the HPS Gen 1
Had my dyno done yesterday at the House of Power. My car was running way too lean with the FMU that came with my HPS kit. I upgraded to a super FMU and Josh R installed and tuned. My car now runs safe and I got about 25wheel HP and TQ a cross the board. I'm sure I can squeeze a tiny bit more power out to the car. I'm running 5lbs of boost so I have no idea how some of these systems are running over a 100 more wheel HP than my car on the same amount of boost with a supercharger only.
Last edited by MARK CUMMINS; Jan 25, 2006 at 03:49 PM.
1) Can the sensors be adjusted similar to adding a tare weight to a scale?
2) How can you tell if a dyno has been edited? What do they typically edit?
3) I understand if the dyno was converted to Excel but if it is simply a image file then how do they do it?
The easiest way to create a false dyno printout is to simply take a dynorun from a different car and edit the notes that are printed with each run.
This is my guess of what has happened here. I could be right and I could be wrong. Mark Cummings has offered to pay for a dyno run for us to see.
So, are we still on?
LOl.........i'll think about it, Mark.[/QUOTE]
I think you should take Mark's Offer. PM me.

NOT the Gains as HPS has stated...310 HP at the Wheels..
Far from the 150HP as listed on his web site...
Also Its VERY VERY LEAN on the Air Fuel!
Oh and its Not running the LOW boost as stated...
Checked it ...on the dyno
The above dyno that Vdoc posted cannot be from a HPS car..look at it close!
No tricks No games JUST FACTS!
Adam will be over to HOP Next week to figure out what is wrong.. Vadim will be there also...Vdoc stop on over and chat with Adam!
This is NOT to Discredit HPS ..Just show real facts..
Btw I Do NOT work for HOP or have a HOP system..
Just want real numbers..NO Cooked Numbers..
Vdoc (IF) You had a HPS system I would offer you a Free Dyno..But since you do NOT maybe another time!
Oh and Linh will be stopping over for his dyno..
Take care!
I'm not here to defend HPS either, but Mario's GEN I isn't stock. He has a smaller pulley to up the boost. That might explain it being lean, along with his aftermarket exhaust. The Gen I on my E430 did not run lean at all. Also, the claimed gains of +150 HP were for the Gen II, not the Gen I. My 430 gained 90 HP at the tires with the Gen I, right in line with their claims.
I'm not here to defend HPS either, but Mario's GEN I isn't stock. He has a smaller pulley to up the boost. That might explain it being lean, along with his aftermarket exhaust. The Gen I on my E430 did not run lean at all. Also, the claimed gains of +150 HP were for the Gen II, not the Gen I. My 430 gained 90 HP at the tires with the Gen I, right in line with their claims.
Mario's kit is only running at 5psi - the psi advertised for the Gen 1 kit. He had to use a smaller pulley because he wasn't able to get more than 3 psi with the pulley included with the kit.
Also, the car that ran 310 and claimed a 147 increase was not Mario's car, but a C55 with the Gen II HPS system. Mario's car came in running lean at 33-something and left making about 360.
NOT the Gains as HPS has stated...310 HP at the Wheels..
Far from the 150HP as listed on his web site...
Also Its VERY VERY LEAN on the Air Fuel!
Oh and its Not running the LOW boost as stated...
Checked it ...on the dyno
The above dyno that Vdoc posted cannot be from a HPS car..look at it close!
No tricks No games JUST FACTS!
Adam will be over to HOP Next week to figure out what is wrong.. Vadim will be there also...Vdoc stop on over and chat with Adam!
This is NOT to Discredit HPS ..Just show real facts..
Btw I Do NOT work for HOP or have a HOP system..
Just want real numbers..NO Cooked Numbers..
Vdoc (IF) You had a HPS system I would offer you a Free Dyno..But since you do NOT maybe another time!
Oh and Linh will be stopping over for his dyno..
Take care!
I was dissappointed with my own 1st 489 rwhp pull on 91 crap gas and an unlearned ECU. My Kleemann mods cost some cash, but it appears to be a strong supercharging system in light of some of these posted output levels from other manufacturers.
Kleemann SLKs rock!
-Matt
Last edited by Fast55; Jan 27, 2006 at 05:39 PM.
Btw I talked to REnntech the other day .. .and he said that the internals for your SLK55 is VERY different than the internals in the factory supercharged 55 motors. (shrug) I know compression is very different but didn't know that valves springs, rods (pistons of course) etc were different.


