C32 AMG, C55 AMG (W203) 2001 - 2007

Need Advice on Adding More Power to HPS SC

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Old Feb 1, 2006 | 01:35 AM
  #176  
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Originally Posted by Clk&Slk
What they discovered is that, in times, the ECU automatic converted back to stock spec. if you don't drive it aggressively for awhile. They also did some test where they drive the car very aggressively and when they re-dyno the car, it showed the car run alot richer. The ECU upgrade will definately fix the problem and this guy that they pick is very good. He even tuned Kleemann car before.
Are saying your car and AMGSC's car have software and then the car lost the program? I thought HPS didn' have any ECU tunning, it was something they were looking at for the future. Hmmm, I'm confused. The guy you are talking about is Jesse, right from EuroRev?
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Old Feb 1, 2006 | 02:13 AM
  #177  
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Originally Posted by E55Cent
Are saying your car and AMGSC's car have software and then the car lost the program? I thought HPS didn' have any ECU tunning, it was something they were looking at for the future. Hmmm, I'm confused. The guy you are talking about is Jesse, right from EuroRev?
Yes it is Jesse Dakkus formerly from Powerchip and now doing independent work. Josh R from HoP is very negative about him due to his prior experience with him and rumors about his impropriety at Powerchip. Jim at Mech Tech did confirm that it is Jesse.

Here is my dilemma! Jim and Bill told me to pick up the car today and drive it for 150-200 miles before bringing it back to them next week so that Jesse would be ready to program it. So far Jesse has not even confirmed whether he will accept the project/engagement or not, let alone when he can do my car.

Jim says he has no place to store my car so I have to pick it up. I don't like this at all because I am being forced to take back a car that is not ready and with potential harmful effects to my engine (too rich fuel dries up the cylinder walls) and my catalytic converters (gets superhot trying to burn off the extra fuel). Plus the fact that I would have to drive back and forth to Escondido which is over 170 miles from my house with a Rental car. This is B.S customer service IMHO!

Although I appreciate their efforts to fix my car at their expense (fuel injectors, pulley kit, filters and possibly programming) it really doesn't mean much if the OUTPUT is not there even if the INPUT is. A whopping 335rwhp is simply not acceptable when compared to their advertised claims. I truly doubt whether the HP will improve by more than 1% after 150 miles of driving.

We pay the price for performance. That is the bottom line and so far I am not getting it.
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Old Feb 1, 2006 | 02:18 AM
  #178  
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Originally Posted by Clk&Slk
What they discovered is that, in times, the ECU automatic converted back to stock spec. if you don't drive it aggressively for awhile. They also did some test where they drive the car very aggressively and when they re-dyno the car, it showed the car run alot richer. The ECU upgrade will definately fix the problem and this guy that they pick is very good. He even tuned Kleemann car before.
Linh,
Did you get your car dyno'd at HoP or not? Did you witness it? If you did please post it. We are both recent HPS customers and should expect to get what we pay for. Prove to me that it is only my BRAND NEW car that was the EXCEPTION.
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Old Feb 1, 2006 | 02:28 AM
  #179  
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AMGSC can you post your dyno graph, I know you got 335hp but what was the TQ? I'm still trying to figure out with 7lbs of boost your car should be making 370 on a bad day even 16.1 air/fuel. Where the hell is all that compressed air going? At 4.5lbs with no cooler and 15.3 air fuel I was making 336hp. You might also have a gasket leak somewhere as well as the wrong injectors.
If you didn't know about cars, now you do. Having a supercharger has really taught me a lot about making safe power. I'm greatful you are willing to share your experiences with the other board members, because it is educational and can maybe help others in the future.
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Old Feb 1, 2006 | 02:28 AM
  #180  
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Originally Posted by E55Cent
If HPS is unable to adjust the ECU on your car I would put the stock injectors back in your car, because the car knows how to read and control them. Use the Split Second unit to adjust timming and use the Super Adjustable FMU to control fuel pressure under boost. With going simple I think your car will make 400whp and should be trouble free. I honestly believe the fuel injectors are the main problem of you car because, one they are the wrong injectors and two there is no software to them what to do.
I agree with you 100% but HPS/Mech Tech obviously doesn't. Instead they increase the capacity/flow of the Fuel Injectors EVEN MORE by replacing the 32 lb Bosch Design IIs with 37 lb RC Engineering fuel injectors. Now it's running TOO RICH. The dyno proved that the stock ECU did not adapt because the miminal 25hp gain was FORCED by a flood of fuel. It definitely was not optimal because the K&N air filters alone should have added 25 hp, not to mention the pulley kit. In my opinion the even LARGER injectors did absolutely nothing to increase horsepower. All it did was change the A/F ratio from one extreme to the other extreme, both of which are bad!
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Old Feb 1, 2006 | 02:35 AM
  #181  
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Originally Posted by Clk&Slk
I was planning to be at Mech Tech the whole day today to see the whole installation of injectors, pulley and dyno on your car but when i called Adam to confirm the plan was still on and Adam said that Jim was so book up on the dyno with his other customers and that your dyno won't be done today. So i decided not to come because the dyno is what really count. Can't wait for your dyno. Finally, HPS decided to go through with the ECU upgrade. Like Vadim said, the products are good, the look are proffessional but it just lack in the tuning department. I'm so excited !!! Btw, you got mail.
Why did Adam tell you that when the dyno was done in the morning? Just to let you know that it took a whole week before I got my 414rwhp dyno chart after I asked that they be delivered with the car. Things that make you say "Hmm?" I also had to insist that Jim (Mech Tech) dyno my car in my presence after he kept telling me that Jim cannot do it. He also discouraged me from going to HoP and declined to witness another dyno at HoP in front of Josh and I to prove that Josh R did not rig or load my dyno after it pulled a 310rwhp.
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Old Feb 1, 2006 | 02:42 AM
  #182  
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Originally Posted by AMGSC
Linh,
Did you get your car dyno'd at HoP or not? Did you witness it? If you did please post it. We are both recent HPS customers and should expect to get what we pay for. Prove to me that it is only my BRAND NEW car that was the EXCEPTION.

No i didn't dyno at HOP yet but i will soon. I understand your frastration but be patient with Jim and Bill. They are doing their best right now with the software. Wait until the software is done then decide.
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Old Feb 1, 2006 | 02:45 AM
  #183  
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Originally Posted by E55Cent
AMGSC can you post your dyno graph, I know you got 335hp but what was the TQ? I'm still trying to figure out with 7lbs of boost your car should be making 370 on a bad day even 16.1 air/fuel. Where the hell is all that compressed air going? At 4.5lbs with no cooler and 15.3 air fuel I was making 336hp. You might also have a gasket leak somewhere as well as the wrong injectors.
If you didn't know about cars, now you do. Having a supercharger has really taught me a lot about making safe power. I'm greatful you are willing to share your experiences with the other board members, because it is educational and can maybe help others in the future.
Here it is...
Attached Thumbnails Need Advice on Adding More Power to HPS SC-robert-chen-dyno.jpg  
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Old Feb 1, 2006 | 02:46 AM
  #184  
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Originally Posted by E55Cent
AMGSC can you post your dyno graph, I know you got 335hp but what was the TQ? I'm still trying to figure out with 7lbs of boost your car should be making 370 on a bad day even 16.1 air/fuel. Where the hell is all that compressed air going? At 4.5lbs with no cooler and 15.3 air fuel I was making 336hp. You might also have a gasket leak somewhere as well as the wrong injectors.
Injectors LEAKED? Please, let not assumed anything since you did not look at the car. If this was the case, Josh will notices it. Btw, you can pump as much air as you want, if the air fuel ratio is not right, the ECU will retard the timing to protect the engine therefore, lost alot of power.
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Old Feb 1, 2006 | 09:59 AM
  #185  
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Originally Posted by rbaker
Your ECU may still be using the old adaptation tables it previously learned unless Mech Tech cleared/reset them. I'm not sure if they did this or the best way for this particular ECU used on the C55's. The tables will need to be completely changed if they installed different flow rate injectors. This is part of the reason one of the guys is saying to drive the car, as he's hoping it will change the adaptation tables & settle in on the right mixture, but there are limits to the range the computer can adjust from its baseline program.

I hate to say it, but this is exactly why I didn't purchase the HPS kit months ago for my C55. When I talked to Adam & Bill (though they were quite nice) they couldn't give me any meaningful answers to my questions befitting "technically inclined" people. Frankly, I've dealt with these tuning issues before on my BMW's and it's a joke if someone expects it just to work right & adapt by only changing the injectors. Also, there were many tricks required (even with the older OBD1 DME's) to force the computers adaptation into working with you, instead of fighting you. Many inexperienced tuners (when I was more involved back in the late 90's) took the incorrect approach to ECU reprogramming, and the ECU simply worked to undo what they've done as the car was driven.

I can't say for certain what's happened here without far more information, but I'm way too skeptical to believe that simply bolting on a s/c and larger injectors & relying on the ECU to adapt will work on any car, even one with a more advanced modern OBD2 DME. Also, if you have a basic tuning problem from the changes that were previously made (original s/c & injectors), just throwing more new parts at it is probably the worst thing to do until someone figures out the TRUE CAUSE of the problem, and not just trying to cover up the symptoms. Any of this of course figures the basic parts are still functioning within their designed range. I thought I remembered hearing your car ran OK for the first week or two, correct? So ask yourself what changed & why...
I agree with you as well. According to Josh R the computer has three different modules (transmission, body control and engine). The engine portion only adapts to within 1% unless you overide the codes.

Read Fast 55's post yesterday on the SLK55 board. He only gained 5rwhp after a 420rwp preliminary pull which is 1.1% after he gave the ECU time to "learn".

It's the transmission that can adapt more as you drive. For example, your shifting pattern as you acclerate, etc... The body control portion is for your acccessories like temperature control, etc..

I don't believe HPS and Mech Tech have figured out the TRUE CAUSE which in my opinion is the computer! Maybe the reason my car is causing them so much headache is because it is a 2006 model with only 600 miles on it when they installed the kit.

Last edited by AMGSC; Feb 1, 2006 at 11:49 AM.
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Old Feb 1, 2006 | 11:39 AM
  #186  
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Originally Posted by Clk&Slk
Injectors LEAKED? Please, let not assumed anything since you did not look at the car. If this was the case, Josh will notices it. Btw, you can pump as much air as you want, if the air fuel ratio is not right, the ECU will retard the timing to protect the engine therefore, lost alot of power.
No! E55cent did not say the Injectors leaked, he said GASKET. I don't know about that but I will ask Jim about it.

Regarding your second statement...Then why did it not gain any significant power when the injectors were changed out? The 25+ hp came from the pulley kit and air filters, not the injectors even though the A/F ratio was now super rich at 15-1.

Why don't you just go get your car dyno'd in your presence and let's hope you are still that optimistic when it's YOUR car. What are you waiting for?
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Old Feb 1, 2006 | 12:08 PM
  #187  
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This is going to be one hell of a mess:

1. There is no need to replace injectors if the goal is to make lmid 400s at the wheels. Proper FMU is enough to fuel the motor up to 450 RWHP. Just look at Kleemann (Dragons C55 makes 440s)

2. When one does replace injectors, DME needs to be reprogrammed to accomadate higher flow of fuel. That means all of the fueling maps will need to be rescaled. I doubt that who ever is doing programming has the knowledge or the ability to do it.

In addition, beside flow rating, every injector brand has its own slope graph. In simple terms, every injector flows different amount of fuel per pulse width per fuel pressure. This curve is programmed in DME's software and also needs to be properly scaled.

What I leading to is this - TUNING is a very complex operation that best left to an experienced software engineers who have many years of programming experience, understand engine theory, have access to the car and to hundreds of hours of dyno time.

AMGSC - you are ginny pig for HPS. In my opinion, even if they do manage to get your car to run half-way decent, there would be some kind of damage to engine as a result of their inexperience.

HPS lied to you before, why do you think they will not lie to you again?

Take that refund offer and go with a proven company.
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Old Feb 1, 2006 | 12:14 PM
  #188  
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Originally Posted by AMGSC
No! E55cent did not say the Injectors leaked, he said GASKET. I don't know about that but I will ask Jim about it.

Regarding your second statement...Then why did it not gain any significant power when the injectors were changed out? The 25+ hp came from the pulley kit and air filters, not the injectors even though the A/F ratio was now super rich at 15-1.

Why don't you just go get your car dyno'd in your presence and let's hope you are still that optimistic when it's YOUR car. What are you waiting for?





RE: Check out hps c55 dyno chart!!!

Vdoc,

First off your wrong about who's dyno is who's. HoP dyno'd "AMGSC's" C55 not SuperC55 that you are reffering to.

Here's the deal sport......... I have $1,000.00 that says you can not beat my CLK 430 at a 1/4 dragstrip with your HPS tuned CLK 430. Put up or shut up smiley. Your playing in a big boy's game now.

The TRUTH shall set you FREE!




Looks Like Josh wants to step up to the plate with a $1,000.00 for a Put up or shut up at the 1/4 track...HPS vs HOP Both with the CLK 430 systems.....

This sounds like a Great time for a GTG...
I Say Bring it on!
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Old Feb 1, 2006 | 12:36 PM
  #189  
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Originally Posted by Vadim-SoCal
Take that refund offer and go with a proven company.
Translation...Kleemann USA!
Looks Like Josh wants to step up to the plate with a $1,000.00 for a Put up or shut up at the 1/4 track...HPS vs HOP Both with the CLK 430 systems.....

This sounds like a Great time for a GTG...
I Say Bring it on!
I'd like to see this if it happens!
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Old Feb 1, 2006 | 02:15 PM
  #190  
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AMGSC - Your post s/c dyno numbers looks like my stock baseline dyno numbers (pre-Kleemann).

The best advice I can give you is to get your refund and go with the Kleemann setup.
Attached Thumbnails Need Advice on Adding More Power to HPS SC-stockc55dyno.jpg  

Last edited by dragonAMG; Feb 1, 2006 at 02:20 PM.
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Old Feb 1, 2006 | 02:34 PM
  #191  
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Originally Posted by Vadim-SoCal
This is going to be one hell of a mess:

1. There is no need to replace injectors if the goal is to make lmid 400s at the wheels. Proper FMU is enough to fuel the motor up to 450 RWHP. Just look at Kleemann (Dragons C55 makes 440s)

2. When one does replace injectors, DME needs to be reprogrammed to accomadate higher flow of fuel. That means all of the fueling maps will need to be rescaled. I doubt that who ever is doing programming has the knowledge or the ability to do it.

In addition, beside flow rating, every injector brand has its own slope graph. In simple terms, every injector flows different amount of fuel per pulse width per fuel pressure. This curve is programmed in DME's software and also needs to be properly scaled.

What I leading to is this - TUNING is a very complex operation that best left to an experienced software engineers who have many years of programming experience, understand engine theory, have access to the car and to hundreds of hours of dyno time.

AMGSC - you are ginny pig for HPS. In my opinion, even if they do manage to get your car to run half-way decent, there would be some kind of damage to engine as a result of their inexperience.

HPS lied to you before, why do you think they will not lie to you again?

Take that refund offer and go with a proven company.
Exactly... This is what I was trying to nicely point out in my response last night to AMGSC. If he expects that people who don't completely understand programming & the theory behind internal combustion engines, and have previously (incorrectly) assumed that the factory DME could adjust to such radical changes with "no problems" have it all figured out, and can pull a last minute software change out of their hat & fix it... well, I think we should all call BS on that one.

The hardware needs to be baselined & the software reverse engineered enough to know where & how to change the code. We're not just talking a few lines here either. There needs to be much dyno testing while tuning it in, and street driving in different conditions & altitudes as well, all with adaptation turned off. Then the adaptation can be turned back on after everything is dialed in correctly by someone who knows how. Lots of luck if they can do that properly in a couple days...
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Old Feb 1, 2006 | 03:26 PM
  #192  
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Hmmm....grudge match at the California Speedway dragstrip anyone?

Maybe we can setup a GTG in March. I know there's the Pasadena Rosebowl meet in March. I'm going to go to the AAA auto club office for info and ask if we can reserve a day in March for dragstrip runs at the California Speedway. It would be awesome if we had the Rosebowl meet and dragstrip runs the same day. I want to test the new engine in March, especially since I have a California Speedway/AAA membership now.


Originally Posted by MARK CUMMINS
RE: Check out hps c55 dyno chart!!!

Vdoc,

First off your wrong about who's dyno is who's. HoP dyno'd "AMGSC's" C55 not SuperC55 that you are reffering to.

Here's the deal sport......... I have $1,000.00 that says you can not beat my CLK 430 at a 1/4 dragstrip with your HPS tuned CLK 430. Put up or shut up smiley. Your playing in a big boy's game now.

The TRUTH shall set you FREE!




Looks Like Josh wants to step up to the plate with a $1,000.00 for a Put up or shut up at the 1/4 track...HPS vs HOP Both with the CLK 430 systems.....

This sounds like a Great time for a GTG...
I Say Bring it on!
Reply
Old Feb 1, 2006 | 04:46 PM
  #193  
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AMGSC, I say keep your car and the HPS system and have Josh R at HOP fix it to make it run right. He will be able to do it in 1/2 a day. He will put the OEM injectors in, tune the Split Second and adjust he FMU. He will also, as you know dyno the car infront of you. You may never make the exact numbers you want but you will have a car with 400whp. Chalk it up to as learning experience. Get your car back so you can start having some fun, like the rest of us.
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Old Feb 1, 2006 | 04:49 PM
  #194  
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Originally Posted by Vadim-SoCal

HPS lied to you before, why do you think they will not lie to you again?

Take that refund offer and go with a proven company.
Too true. I wouldn't want to deal with a company that's mislead you in the past and would probabaly do it again in the future...if they could get away with it. I had such high hopes when you first posted about the power gains you experienced with HPS and the relatively inexpensive amount you paid to get it. It sucks that they couldn't deliver what they advertised. You have a beautiful car (not to mention expensive) and if it were me, I wouldn't want my car to be a guinea pig for ANY company.

Get a refund, take all their crap out of your car, and get it inspected to see if any damage has been done to your car...expecially the motor. If there is damage and they refuse to compensate you for it...I would start thinking about talking with a lawyer.
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Old Feb 1, 2006 | 06:31 PM
  #195  
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AMGSC,

You want to sell me your "damaged" carbon fiber lip? I'm thinking of modify it for my car.
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Old Feb 2, 2006 | 09:26 PM
  #196  
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Originally Posted by AMGSC
My goal is to hit 600 bhp at ANY COST as long as it adds value and is not a waste of money.
HPS is using a Magnuson MP112 Supercharger which will pump enough air at the upper limits for acceptable and practical inlet temps to support about 520fwhp. Camshafts, exhausts and other mods will not help the MP112 pump more air. Your most practical path to 600fwhp whilst sticking with the MP112 would be to add NO2.

Good luck
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Old Feb 2, 2006 | 09:32 PM
  #197  
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Originally Posted by John Long 55
HPS is using a Magnuson MP112 Supercharger which will pump enough air at the upper limits for acceptable and practical inlet temps to support about 520fwhp. Camshafts, exhausts and other mods will not help the MP112 pump more air. Your most practical path to 600fwhp whilst sticking with the MP112 would be to add NO2.

Good luck
Nitrous on an HPS car that doesn't get the fuel it needs?? I think that would result in the car doing this:

http://www.1320video.com/vids/12.28RedRumDyno.wmv
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Old Feb 2, 2006 | 09:40 PM
  #198  
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Originally Posted by Josh K
Nitrous on an HPS car that doesn't get the fuel it needs?? I think that would result in the car doing this:

http://www.1320video.com/vids/12.28RedRumDyno.wmv
Josh K

I was referring only to the practical fwhp limits of a MP112 and how he may acheive his goal of 600hp. I would assume that any work that is done would be professionally setup which would include tunning... the correct tuning

Did my post did not say that adding NO2 would solve his current tuning issues? NOPE

Last edited by John Long 55; Feb 2, 2006 at 09:46 PM.
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Old Feb 2, 2006 | 10:31 PM
  #199  
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Originally Posted by Josh K
Nitrous on an HPS car that doesn't get the fuel it needs?? I think that would result in the car doing this:

http://www.1320video.com/vids/12.28RedRumDyno.wmv
That's not a result from not getting enuff fuel! Those guys in that video should be in the movie JackASS!

They are using a stck 2g 7bolt long blck with stck rods and pistons at 35lbs of boost? How do you spell DOPES! That is the main reason why that motor blew.The stck small 7 bolt rods cannot deal with that kind of boost on those dyno pulls. That's why they flew out the side of the blck!

Back to Mario's post! Yes I do agree with Mario that all the car needs is proper tuning.The splt second piggy back seems pretty impressive and has wrked wonders in tuning gregc's car(S/C CLK55). Just throwing in those big injectors and expecting the ECU to compensate is retaarded on HPS's part.I'm really surprised and dissapointed that they would just flood the motor with bigger inj without properly custom tuning the ECU to compensate for the change.Amazing!


If this keeps up you will be saying goodbye to that motor . Get the splitsecond system and let Josh tune the car with the HPS system.All you need is proper tuning with the stck injectors.If you keep those big injectors,you will certainly need the piggy back to retune the car.If you are going headers cams ,port and polish ,I would probably keep the bigger injectors if you are gonna continue using the HPS system.But you will need the piggyback.
I love the way the splitsecond system can control timing and fuel trim.Get that and you'll be happy with the HPS system.Give it to Josh or GregC and let either one of them tune away! Gosh i wish I was in Cali sometimes.Only thing that keeps me from coming there are low octane fuel and earthquakes!
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Old Feb 2, 2006 | 10:38 PM
  #200  
Josh K's Avatar
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Joined: Mar 2002
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From: The Heights, CA
Tesla Model S
Originally Posted by John Long 55
Josh K

I was referring only to the practical fwhp limits of a MP112 and how he may acheive his goal of 600hp. I would assume that any work that is done would be professionally setup which would include tunning... the correct tuning

Did my post did not say that adding NO2 would solve his current tuning issues? NOPE
Originally Posted by coolcarlskiC43
That's not a result from not getting enuff fuel! Those guys in that video should be in the movie JackASS!

They are using a stck 2g 7bolt long blck with stck rods and pistons at 35lbs of boost? How do you spell DOPES! That is the main reason why that motor blew.The stck small 7 bolt rods cannot deal with that kind of boost on those dyno pulls. That's why they flew out the side of the blck!
I know, I know, I just wanted an excuse to share that video as it brought me great joy :0))))
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