91RS

I finally got to dyno my car today after the Kleemann SC install, and I've got to say I'm a little disappointed in the results. Best run was 357hp and 385tq. Each run gained about 5hp, but there was only time for 3 runs. I wish I had been able to get a before dyno run, but I just couldn't get the timing right with the dyno shop. I still should be making more.

Video of the last run:

http://www.youtube.com/watch?v=3-_BtbUgYgs

Viper98912

Don't they check their results before they ship the car back to you? Call em up man

dre5373

What other mods do you have? I agree, seems way low...is this with the Kleemann ECU remapping?

wawy

How does the car "feel"??

91RS

I did the install myself. My other power mods are AMS shorty headers and secondary cat/resonator removal. Brandon said I did not need a tune unless I was to get different headers that do away with the stock primary cat. He told me I would be wasting my money if I had it tuned. I'm going to call him tomorrow after they open up.

I'm wondering if I should replace my MAF. In my pre-install research one guy over seas was low on power after his install and they replaced the MAF and made 30-40 more hp. I'm still wondering also about whether or not my tune is actually 100% stock since I had the little issue with the speed limiter being set at 105mph for some unknown reason.

Viper98912

First off, you install this yourself and don't invite me over to help?

And I'm a little confused, you install a major power adder yet don't get a tune? What magic (or lack of knowledge on my part?) does the ECU do to be able to adapt?

And after your mph debacle, I bet there's probably a few more things in your ECU that aren't stock....

91RS

I actually did the install at work over the course of 8 days.

I was confused too, but Brandon told me I would be wasting my money if I had it tuned. He said I could run more aggressive timing if I remove my primary cats or get high flows. It uses a secondary fuel pump with a pressure regulator to get the extra fuel under boost.

Yeah, I agree. Unless Brandon has any different ideas, I think my next step will be a new MAF and find some time to get up to ACC and have them reprogram the ECM and TCM.

Gramma_Benz

You def need a tune! You should be around 450 at the wheels!!

MIKESV8

+1 you should be making that much power with the other mods alone without the supercharger

AKnight55

You added a blower and no tune?

chris.bachman

Like some of the others I'm confused. You installed a Kleeman Supercharger on your C55 and did not get an updated tune for this?

PC Valkyrie

For the record, Kleeman has always offerred the supercharger unit alone, without their ECU tune as an option for customers. Obviously, the gains are not as high as the full deal: supercharger, headers, and ECU tune.

Whether the gains should/could have been higher with a supercharger alone is the question here.

thegreatfnr

Isn't the 350whp range close to what some have seen with LT headers/tune only?

Maybe the conditions at the dyno were not ideal. It has been fairly cool around here so I dont think heat could have been too much of a problem.

PTE

I do not believe a tune will find you 65 HP . I did not see a A/F ratio Chart/ graph ? or a Boost pressure number? The stock Cats & Exhaust may be your Issue. It shrinks down at the Y split after the Diff. Check With Cory @ Klee.
Cheers _PTEngineering

amgen

Stock primary cats is the first to get rid off on a C55,
they really chokes the hp/tq.

alumar

Something is not right man - I would consider getting a tune, make sure your not running extremely rich too, that will rob a lot of HP. You should be at minimal getting 400rwhp

Here was one of my pulls (was running rich on that pull and got 400rwhp) but corrected the tune to maintain 11.6-12.0 through the range and got it up to low 440's

http://www.youtube.com/watch?v=3ZkgD64UoME

Nachtsturm

Definitely low, there are afew N/A C55's putting down more power. That last dyno of the C55 with custom exhaust and Kleenman headers and eurocharged tune put down circa 370whp. You need a tune, try a new maf, and some AFE Dry Flows.

alumar

If you listen to the dyno ... between mine and your dyno, when you hit it at first, seems there is a dip in acceleration in addition to the climb up the RPM's taking a bit longer.

Did they offer to test your air-fuel?

Newzchspy

FWIW, my car has the headers, SC and the tune. The only thing I don't have is the smaller pulley that Blkbnzz and others run. Yes, how does the car feel???

Stock C55s are only pulling on your same dyno 270-290 (I've never seen a stock on on same dyno over 300) , so you did gain some major HP. Your #s are the same as mine and several others.

The MAF is prolly not the issue. I think you're wasting $200.00 bucks to just replace it. Been there done that!!

Viper98912

I thought the Kleemann S/C was supposed to get you up to like 450 hp, with additional mods and pulley something rediculous like 525? Maybe those were crank estimates, not wheel.

91RS

No tune didn't sound right to me either, but Kleemann told me I didn't need one.

My main reason for the dyno was to make sure my A/F ratio was correct, but they said I needed a bung in the exhaust to check the A/F ratio and I don't have one yet. Is there another way to check it?

I really wanted to get in on the group buy for MBH long tubes, but I just really didn't need to spend any more money.

The car does feel faster for sure, but it definately doesn't feel like the 400 whp I was expecting. I really wish I could have gotten a before dyno, but it is what it is.

dre5373

What really looks strange to me is the bump in torque at 3500. Newz, did your dyno show a similar curve?

PTE

Project _PTE_

--------------------------------------------------------------------------------

As you all know I been working on My engine for quite some time. I've had a few stops along the way , But I wanted it to do some things my way. Here is the latest Dyno sheet , I always use the same dyno ( DYNOJET 248 H ) & The same operator. This was a new Kleemann blower kit with the MP-112 Gen 4 Eaton type blower . The pull was done in 4 gear , then we hit the speed limiter at 6400 rpm. It was pulling very good til then.and I believe the HP will keep increasing to 7000. rpm and beyond. The Torque curve is right & Fuel air ratio is on the money 11.83 for safe operation . Since this post I made over on the W-209 site , I had Andy @ MHP fix the shift points & rpm limiter issues & he found me some extra Ponys under the Curve , along with some at 6750 rpms. The stock File should find you in the 400 RWHP range with a good exhaust. Enjoy ___PTEngineering Attached Thumbnails

GT-ER

That graph looks horrible....you need a tune badly.

91RS

Is there another way to check the A/F ratio without having an extra bung in the exhaust for a wideband O2 sensor? I thought I read somewhere for adding a guage that bung would need to go before the primary cats and I'm not sure there is enough room to get in there and weld one in. MBH did extend the group buy on the long tubes until Friday, so I may just have to make it work. I'll have to find a quote on installation.