C32 AMG, C55 AMG (W203) 2001 - 2007

Need Advice on Adding More Power to HPS SC

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Old Feb 4, 2006 | 01:43 PM
  #251  
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Originally Posted by AMGSC
Actually, Adam never offered a refund and I never asked for one (yet?). Bill K only made a statement to me probably out of frustration that he could easily "write it off" but was determined to fix the problem. I inferred from this statement that they would offer a refund.
Writing something off usually means washing their hands of it. He probably meant that he could always tell you to go pound sand, but then again, that's just my inference. :0(
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Old Feb 4, 2006 | 07:53 PM
  #252  
Vadim-SoCal
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10.7 to 1 CR and NOT a 11.0 to 1 as everybody stated
Three tenths of a point is not that siginficant. 10.7 CR and anything above 6 psi, on CA 91 gas, is a receipe for detonation.
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Old Feb 4, 2006 | 08:43 PM
  #253  
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Originally Posted by Vadim-SoCal
Three tenths of a point is not that siginficant. 10.7 CR and anything above 6 psi, on CA 91 gas, is a receipe for detonation.
Vadim, even with a good A/F ratio, like below the 12.1:1?
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Old Feb 4, 2006 | 09:08 PM
  #254  
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Originally Posted by dragonAMG
Kleemann products are CARB certified.
Removing the catalytic converters is not legal in CA so by getting Kleemann header in CA this would be a problem. Obviously there are ways around it :v
if you really want the headers. RENNtech did not agree to remove mine
It also adds around 20 hp.

BennyZ
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Old Feb 4, 2006 | 11:58 PM
  #255  
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Vadim, even with a good A/F ratio, like below the 12.1:1?
Yes, even with richer mixture, there just not enough octane in CA 91 to keep detonation at bay.
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Old Feb 5, 2006 | 12:00 AM
  #256  
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Originally Posted by Clk&Slk
Vadim, even with a good A/F ratio, like below the 12.1:1?
Be smart and stick with the 6psi.Why take a chance. The more boost you run the more the reliablilty factor deteriorates.
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Old Feb 5, 2006 | 12:06 AM
  #257  
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Originally Posted by Vadim-SoCal
Yes, even with richer mixture, there just not enough octane in CA 91 to keep detonation at bay.

Vadim, no way i am question your knowledges but is it every cars and set-up are difference? Have you ever seen this happen on an HPS set-up? I'm sure you based this on Kleemann kit, right? The reason i ask because i going with the same route as AMGSC. He will be running at 7-7.5 psi.
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Old Feb 5, 2006 | 12:15 AM
  #258  
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Originally Posted by coolcarlskiC43
Be smart and stick with the 6psi.Why take a chance. The more boost you run the more the reliablilty factor deteriorates.

It would be smart if based on facts and not opinions. Have you or know anyone done any testing on with this set-up? I'm trying to find the facts here so i can make that smart decision. Btw, regarding to your "The more boost you run the more the reliablilty factor deteriorates". Absolutely true if not tuned right. Same go with putting a SC on any engine but we did it anyway !!
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Old Feb 5, 2006 | 12:18 AM
  #259  
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Originally Posted by Clk&Slk
Vadim, no way i am question your knowledges but is it every cars and set-up are difference? Have you ever seen this happen on an HPS set-up? I'm sure you based this on Kleemann kit, right? The reason i ask because i going with the same route as AMGSC. He will be running at 7-7.5 psi.
No, this is pretty general and Vadim is possibly correct.. Unless you are able to cool the intake a great deal and pull back enuff timing,or chg the pistons to lower compression slugs(pistons)the heat and extra air from the S/C can cause detonation at that much boost on a high compression motor.Remember boost basically is also raising your compression to produce pwr.
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Old Feb 5, 2006 | 12:20 AM
  #260  
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Originally Posted by Clk&Slk
It would be smart if based on facts and not opinions. Have you or know anyone done any testing on with this set-up? I'm trying to find the facts here so i can make that smart decision. Btw, regarding to your "The more boost you run the more the reliablilty factor deteriorates". Absolutely true if not tuned right. Same go with putting a SC on any engine but we did it anyway !!
Bro,I have a turbocharged car and this stuff is very basic to me.It's not based on opinion! I've driven F/I cars since 1987 6 psi would be a smart decision.You want more pwr,do it right!ADD cams ,headers,downpipe, Exhaust,and whatever SW upgrade that's needed.

Last edited by ProjectC55; Feb 5, 2006 at 07:51 AM.
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Old Feb 5, 2006 | 12:27 AM
  #261  
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The ideal compression ratio for F/I cars would be from 7.5:1 to 9.6:1.Ask anyone who is very versed in F/I.Why do you think MB lowered the compression to 9.something to 1 for the supercharged cars. This goes for the CL65 and SL65 as well.Low compression slugs in the V12 for turbocharging reliably..This is also for the sake of the motor not grenading like yours will if you are not careful.I'm for you and not against you my friend.
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Old Feb 5, 2006 | 02:48 AM
  #262  
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I think I may just ask HPS to put the original pulley back on since it already made 7-7.5lbs while the new smaller pulley made only 6-6.25 lbs. Once they solve the low HP and low boost problem the smaller pulley would make according to physics and mathematical calculation about 8.5 lbs psi. I agree that this may not be beneficial to the lifespan of my engine. I don't think HPS is trying to make the retail/advertised power out of desperation but to do it efficiently. At this point, All I'm looking for is to regain the 414rwhp that I suddendly lost when I dyno'd it at HoP.
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Old Feb 5, 2006 | 07:48 AM
  #263  
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Originally Posted by AMGSC
At this point, All I'm looking for is to regain the 414rwhp that I suddendly lost when I dyno'd it at HoP.
When u drive the car is the loss noticeable?
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Old Feb 5, 2006 | 02:02 PM
  #264  
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Originally Posted by AMGSC
At this point, All I'm looking for is to regain the 414rwhp that I suddendly lost when I dyno'd it at HoP.
sorry, i'm kind of confused. did you ever have the 414 rwhp? i was under the impression that HPS gave you a fake dyno chart, given that it didn't make nearly the same power when you dyno'd it again and the fact that the original dyno's readings stopped at 6K rpm (not the 6.5K like our C55's should)
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Old Feb 5, 2006 | 02:04 PM
  #265  
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Originally Posted by coolcarlskiC43
When u drive the car is the loss noticeable?
I did notice some loss of power during this short period but I'm still not sure it ever had 414rwhp because I never witnessed the first dyno.
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Old Feb 5, 2006 | 04:17 PM
  #266  
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I hope those guys are being honest about the rwhp #'s.They are only doing themselves a disservice if they were dishonest. It seems like now that your around the car when it's dynoed,all hell is breaking loose.

Man I hope they sort the foolishness out.I figured they have got something very good at a very afffordable price.

We're all gunning for you though man!

Last edited by ProjectC55; Feb 5, 2006 at 04:19 PM.
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Old Feb 5, 2006 | 06:25 PM
  #267  
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Hey Clkslk---Linh

I'm going to be @ Mcdonalds this wednesday Feb 8th If you want to meet for Lunch and the dyno I promised you give me a call I lost your #

I'm getting the smaller pulley, and ECU if they can do it when I'm there maybe even get the bigger injecters as well if the price isn't to high.

I'll also be getting a DYNO, and posting it as soon as I get home, I don't think the Dynos are fraudulent, When I had my HPS II installed the before dyno 220 rwhp & after install was 310 rwhp 320 rwto the power after install was a night and day difference..(Adam HPS, and MechT thought I should see more power and advised me it was missing some hp due to clogged cats that's why I had Mcdonalds due the additional work below)

Mcdonalds removed the primary cats, and installed 200-300 cell racing cats very big job took a full day as they left the Primary cat shells in place and hollowed them out and welded a smaller straight pipe inside to keep resonance and hollow sound down, then they cut off the secondary cats and welded in the racing cats and relocated the o2 sensors to them.
I was going to get it re-dynoed that day but as I said it took them all day and had no time for dyno.

Jim from Mcdonalds said I should see at least 20-25 rwhp, from that exhaust work
the difference in sound & power on the drive home was very noticable.

HPS & I worked out are issues and I look fwd to working w/them again

Last edited by Thericker; Feb 6, 2006 at 01:14 AM.
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Old Feb 5, 2006 | 06:56 PM
  #268  
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Originally Posted by thericker55
I'm going to be @ MechTech this wednesday Feb 8th If you want to meet for Lunch and the dyno I promised you give me a call I lost your #

I'm getting the smaller pulley, and ECU if they can do it when I'm there maybe even get the bigger injecters as well if the price isn't to high.

I'll also be getting a DYNO, and posting it as soon as I get home, I don't think the Dynos are fraudulent, When I had my HPS II installed the before dyno 220 rwhp & after install was 310 rwhp 320 rwto the power after install was a night and day difference..(Adam HPS, and MechT thought I should see more power and advised me it was missing some hp due to clogged cats that's why I had them due the additional work below)

MechTech removed the primary cats, and installed 200-300 cell racing cats very big job took a full day as they left the Primary cat shells in place and hollowed them out and welded a smaller straight pipe inside to keep resonance and hollow sound down, then they cut off the secondary cats and welded in the racing cats and relocated the o2 sensors to them.
I was going to get it re-dynoed that day but as I said it took them all day and had no time for dyno.

Jim from MT said I should see at least 20-25 rwhp, from that exhaust work
the difference in sound & power on the drive home was very noticable.

HPS & I worked out are issues and I look fwd to working w/them again
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Old Feb 5, 2006 | 08:59 PM
  #269  
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Originally Posted by thericker55
I'm going to be @ MechTech this wednesday Feb 8th If you want to meet for Lunch and the dyno I promised you give me a call I lost your #

I'm getting the smaller pulley, and ECU if they can do it when I'm there maybe even get the bigger injecters as well if the price isn't to high.


I think this the 4th times you said you want to meet up and do our thing but the plan never come throught. So call me up when you actually there !!! I can only be there around 2 pm.

As for you getting the ECU upgrade on the 8th, it isn't gonna happen yet (at least on that day). I think you should verify your info to make sure so that you don't have to make two trips. Jim, is not the one calling the shot regarding to ECU upgrade. Just trying to help you here.

Last edited by Clk&Slk; Feb 5, 2006 at 09:06 PM.
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Old Feb 5, 2006 | 09:20 PM
  #270  
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I don't think the Dynos are fraudulent
Sorry, but they are. One is Viper dyno, the other one is from other car. NONE of C55s ever made the power that HPS has claimed. Not even close.

MechTech removed the primary cats, and installed 200-300 cell racing cats very big job took a full day as they left the Primary cat shells in place and hollowed them out and welded a smaller straight pipe inside to keep resonance and hollow sound down, then they cut off the secondary cats and welded in the racing cats and relocated the o2 sensors to them.
I was going to get it re-dynoed that day but as I said it took them all day and had no time for dyno.

Jim from MT said I should see at least 20-25 rwhp, from that exhaust work
the difference in sound & power on the drive home was very noticable
Please, no more fake dyno graphs or butt dynoes. Can we see a real, customer witnessed dyno graphs?

BTW, work described above is against federal, emission laws.
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Old Feb 5, 2006 | 11:57 PM
  #271  
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Originally Posted by Vadim-SoCal
Sorry, but they are. One is Viper dyno, the other one is from other car. NONE of C55s ever made the power that HPS has claimed. Not even close.



Please, no more fake dyno graphs or butt dynoes. Can we see a real, customer witnessed dyno graphs?

BTW, work described above is against federal, emission laws.
I was gonna tell him to delete the cat mod out of the thread! that is something I would have kept on the low!Some fed reads his post and that shop is up s__ts creek!
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Old Feb 6, 2006 | 12:59 AM
  #272  
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Originally Posted by Vadim-SoCal
Sorry, but they are. One is Viper dyno, the other one is from other car. NONE of C55s ever made the power that HPS has claimed. Not even close.



Please, no more fake dyno graphs or butt dynoes. Can we see a real, customer witnessed dyno graphs?

BTW, work described above is against federal, emission laws.
Well I guess you can add Kleemann to that list as well because they do pretty much the same thing when you get their header upgrade

I'm w/you on the dyno thing I'll not be leaving w/out it...
The car doesn't need 4 cats, It will still be legal the car still has 2 cats on it....

Last edited by Thericker; Feb 6, 2006 at 01:04 AM.
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Old Feb 6, 2006 | 01:12 AM
  #273  
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Hey coolcarlskiC43

Could you please deleat that post of mine? Thanks for the support I wish no harm to Mcdonalds or it's employees they make great hamburgers
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Old Feb 6, 2006 | 01:30 AM
  #274  
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Originally Posted by Vadim-SoCal
Sorry, but they are. One is Viper dyno, the other one is from other car. NONE of C55s ever made the power that HPS has claimed. Not even close.

So are you trying to say Every single 55 motor application w/HPS II is not making at least 400rwhp??
Does this include Fast55 Clk&SLK etc...

Why is this such a stretch? E55cent has the HPS gen I and he's fetching 360rwhp, So why in your opinon would a bigger blower more boost w/intercooler not be able to produce another 40rwhp?

There's obviously something majorly wrong w/blower itself a defective unit, I'm sure they'll swap it out for another and everything will be good..

Last edited by Thericker; Feb 6, 2006 at 01:38 AM.
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Old Feb 6, 2006 | 02:36 AM
  #275  
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So are you trying to say Every single 55 motor application w/HPS II is not making at least 400rwhp??
Does this include Fast55 Clk&SLK etc...

Why is this such a stretch? E55cent has the HPS gen I and he's fetching 360rwhp, So why in your opinon would a bigger blower more boost w/intercooler not be able to produce another 40rwhp
Well, lets see. Every dyno posted so far, including on HPS website, has been proven to be a fake.

HPS itself admits to it's own customers that it has not done proper tuning.

So how can there be 400 rwhp from their kit, if tuning has not been done.

There's obviously something majorly wrong w/blower itself a defective unit, I'm sure they'll swap it out for another and everything will be good
Mechanically I do not see any problems, except for maybe running more boost, that depends on how much belt wrap blower pulley has.

The problem with HPS kit is, as has allways been - TUNING.

Or to be more precise, lack of it.

Giving customers fake dyno graphs is not going to get HPS cars to magically make power.
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