Don't get nervous on me Carl, you hang in there. Be strong!

LOL! Just all the things happening to Robert's car is very frustrating Mario! Just ridiculous.Imagine if you bought a kit from Kleem or Renn and you had to deal with all this.Unbelievable and this was supposed to be an equivalent but cheaper alternative!

I also got a little worried when the race between you and Josh was mentioned!LOL! Is it all tru!Tell him you'll run him from a dig! I'm very interested in knowing how well both cars will run against each other.Josh's car also sounds impressive if it's that quick!

Equivalent? Sorry Carl. (no pun)

It is very impressive :0) Also, keep in mind that mario is only about 15 horses up on me but also about 300 lbs. heavier. Next time you're in SoCal, I'll take you for a ride. And Mario and I will be doing a couple of runs in the near future :0)

I just called numerous Kleemann dealers and asked them how the non-ECU Kleemann works.

Everyone of them told me that they seldom ever sell a Kleemann Kit without the ECU. The few non-ECU SC installs that were sold never ran right and eventually the owners had to purchase the ECU addition (+$1,000+installation).

I think this confirms the fact that no SUPERCHARGER will run right without either an ECU upgrade or some workaround solution such as using Split Second, Super FMU and Boost-A-Pump.

Well,perhaps in their minds or at least the impression I've been given! i'm not arguing that ,I'm only saying that they are using a modded ECU but with the stck injectors.Can someone confirm this?Josh please pm me the price of the kit and it's availabiliy! Sounds very good and I'm curious. Thanx!

Although Josh Hill (DraganAMG-who sold his 55K S7car? WHY?) said his car used stock injectors. All the Kleemann dealers (including Cory) I spoke to told me that the ECU version of the S/C HAS larger injectors.

I took your advice and went to the RC Engineering Web site. I used their formula to calculate what size injectors and found that if I wanted 500+ hp then I would need at least 44-46lb injectors. The formula is : (Desired HP x BSFE)/(No. of injectors x .80). This would yield (500hp x.6)/(8x.8) = 46.87lb injectors x 10.50 = 492cc injectors. The .6 is the lbs of fuel per hour per 1hp while the .8 (80% of continuous flow) is the maximum duty cycle most injectors can tolerate.

Based on this calculation. The 44lb injectors SHOULD correct the problems I hope.

Not true. I've had my s/c kit (stock ecu) for over a year now and am very happy with it and never had a single problem. If you're around the area let me know and i'll give you a kleemann impression! He sold his car because he got bored with it. Nothing is wrong with his car. And if you still want to do some tests/run let me know and i'll run you with mine.

So did you apply some workaround solution? like HoP's Split Second, Super FMU, Boost-A-Bump combination or did you hire a programmer to change the settings on your factory ECU?

I'm not challenging you or other Kleemann owners but just trying to find the best solution for myself and also provide some facts for other MB owners who are still sitting on the fence as it relates to Superchargering thier rides. Giving forum members information to make their own unbiased decisions is what I am trying to accomplish. If I've made mistakes with my choice then I certaintly will not and have not been bashful about revealing my problems. I have many choices when it comes to adding more power and I am looking at every option.

Workaround solution? I never had to do any of that as far as i know. The shop installed and s/c kit and was running stock ECU as far as i know. Then later on down the road i upgraded everything else (for more HP). But again as far as i know i never did anything to the stock ecu. I completely understand that everyone is looking for their best bang for your dollars. I did my homework back around 00-01 when i came across kleemann and didn't know how they would stack up against Brabus or RennTech. But after riding in their demo car and asking some questions about their kit i knew this is the best bang for HP. The Brabus and Renntech i was looking at was just too expensive. So in the end IMHO Kleemann is the only way to go for me.

The thing i don't understand about the HPS II kit is that they are advertising this kit for your C55 application but how come you're running into all these problems? Shouldn't HPS have gone through testing before releasing this kit as someone mentioned before? Robert just think of how much downtime you have already gone through. I really hope HPS can come through with all what they're doing to your car. Again good luck and pls keep us posted. We're all crossing our fingers for you!

Wrong, basic Kleemann kit does not have ECU upgrade, it comes with FMU and uses stock injectors. I have installed 11 kits with this configuration and they all produced promised power.

In theory this formula is correct, in reality you could get away with about 20% smaller injector. A lot depends on injector slope and fuel pressure.

Dittos!!!!!!!!!!!!!

HPS couldn't do this first? Again self proclaimed tuners at work here folks. You mentioned a "work around" solution. Given you could call it that, it works. It is used because presently there are only a few companies that can correctly modify a MBZ DME. I'm sure you can attest to this. So the alternative is to use an FMU system. Now here is what you do not understand. Not all FMU's are created equal.

I think my car was Silver?

I will take pictures of the HE & Intercooler (from HPS Shop) up close so you can see if that these units have both been upgraded. I should have my car back any day now.

No need for an ECU upgrade on my car with a Kleemann SC, stock ECU is just fine. Why don't you come to HoP and checkout my car, let's compare our Dynos and do a couple of runs.

I already got my answer on the basic Kleemann SC. The kit comes with a FMU (Fuel Management Unit) instead of a ECU mod. However Cory told me that if you want over 530 hp then you must buy the S2 kit with the ECU mod and LARGER INJECTORS. I see that you have the Headers, Cams AND Exhaust also so it would'nt be a fair comparison yet. Why did'nt you mod the ECU? Please post your dyno chart. I will do the same when I get my car back. BTW...As you can see I've already signed up to GTG Dyno day (number 13). I think you are listed right after me. If my car's dyno results suck then I'm going with the 2007 C63 and wait for the Supercharger for that model that's been proven and tested.

Jam, where do you sign up for the dyno day?

Here ya Go...

https://mbworld.org/forums/events-gatherings/135534-feeler-dyno-day.html

I heard JamE55 has 600WHP. Who's gonna dyno his car and clown him?

He is signed up for the HOP GTG

oh werd. hopefully he doesn't turn back around 2/3 of the way.

Thank you Josh, your LOST is our gain. Tuning is COMPLTETED !!! "Those you laught last, laught the BEST" !!!


I MUST say, Jesse was AWESOME !!! Even thought we all waited for 3 weeks now for the final result of tuning. The actual times that the car is on the dyno for Jesse to tune it, is about 16 hrs. total !!!!

I am glad to see there is progress. I am also glad to see that Jesse was able to help you out in this case.

Questions:
Will HPS pick up the tab for custom tuning for all previously purchased HPS systems? It seems like this is not the only HPS system out there with problems. Will HPS be providing custom tuning in ALL their kits sold in the future also?

thanks,
Dan ****

1) Yes, only if you have problem.

2) Yes, on those future kits only on engine that need it.

Jesse...........i can't say enough about him as a person and his works. Josh, here's a piece of advice to why he can't help you............you got to have the hardware right !!! Just like HPS system, they sorted out the hardware and Jesse did the rest.