BlownV8

My CL600 made right at 524 RWHP on just an ECU tune. It had over 70,000 miles when it was dynoed and was stock down to the air filters. I have never seen a stage 1 E55 anywhere even close to that. Not to mention, it was making over 500 RWHP for most of the run. The HP curve was almost flat throughout the rev range. You don't see that in a supercharged E55.

The supercharged V8's build HP with rpms while the 600 builds it early and holds the power throughout the range. Look at the dyno of an E55 and a tuned 600. You will find, even if the peak HP numbers are the same, the 600 will have more power over 99% of the RPM range.

dyno

not easy to find around here any body experienced and able to make a custom Ecutune for a 55K ... they are usual with 200K
and I don't want a standard tuning file ..
Ecutune will be the most interesting mod for me, not simply a "necessity" because I'll want to know exactly and see at what level they will change each parameters

This is for me a learning experience, other than a great money wasting project. Even if you give me my car back with 700hp but you don't allow me to be part of the tuning process ... what for? I don't live on races.

I found a german tuner that offered dyno check after his tuning .. meaning you have the right to refuse that tune upon a significant difference in result..
Unfortunately I see that he recently lowered promised performance!

I was planning to go to Germany for that, but only after having agreed that tuning will be made on those conditions. If they are going to keep everything secret .. as somebody else does with his mod's specifications I'll not take that.

dyno

I do have the Sky sac !
maybe it is the same device and panel as for CL.. seemed to me quite same sizes. must look for it
...or you were thinking about a cooling mod

what headers are you running now?

.. while we went for racing, I gave the guy at the spare parts office a job: to look for the SLR header, number and cost.
when back, he was smiling asking for the race outcome .. and gave me those data and this, 4 in 2 in 1 as I imagined :



unfortunately the part includes the cat converter and therefore the cost is prohibitive
.. but I already found here somebody able and willing to make it.. should I decide for that design

jangy

thanks for the insight. Did you pre and post dyno your e55? 30 hp gain at the wheels is a bit low IMO. stage 1 is easily the biggest bang for the buck.

jangy

Bro, a 4 into 2 into 1 with proper sized tubes is going to be VERY difficult (if not impossible) because of the available room. You will have to go with long tubes and a different drop angle. If you are going to get headers fabbed, go ahead and get all the piping to the rear mufflers. For fun, slide a small pipe inside the tailpipe and see how much it kills the baffling. LOUD!!

dyno

SICILIA is a very interesting COUNTRY

and you, "ot kuda"?
btw, ... anything interesting now at VRP? because my friends at the service are now mor einterested that before to help with my performance enhancements.
-I delayed to next week the 80TB install because I want to make another dyno with the pulley alone
- they are now busy with those rear Led lights, Sam and connections parts, and with retrofitting the TPMS.

We were discussing the HEADERs issue: decision is not upon emissions requirements. I showed some modded header and ..my Tech would like me to install a Long.
I'm not convinced ... true, there's an high probability I'll end up with some cams too, b only slightly more aggressive than Slr's, (just the opposite of what you are doing now if I understand correctly)
in any case, I don't want to transform this into a roaring car.. must remain a Beast in disguise

Marcus Frost

This is Dyno Dynamics - aka the heart breaker - stock E55 does 360-390rwhp. My '03 E55 did 370rwhp bone stock, my '05 did 400rwhp (again, highest 55k car to ever dyno at CPT). I picked up 36rwhp with Stage 1 with my '05.

Re: Older RENNTech tune, very possible. The dyno does not look like VRP's recent VR620 dyno, you can see torque limitation as it approaches redline.

I am eagerly waiting to dyno my 65.

-m

Vadim @ FD

How far do you want to go?

550HP, 600HP, 650HP, 700HP, 750HP.....

BlownV8

1000.....!

deuce zer0

lol

dyno

550 don't need anymore because, as showed above, I already passed it without Ecu.

...reading average performance values as said above by other members , I have to consider myself lucky to have an happy engine: 438whp stock + correction = 447whp, Stock, KN filters

attached is that test at a "braked dyno": as you certainly know, this is a much more serious test than an "inertial dyno": unfortunately, the guy at the dyno test lost the rpm signal at 6000 rpm, so the graph shows that reading as the first value at zero rpm. I rewrote it correctly at 6000

As you see, HP at wheel decrease after 5000 rpm (even if engine HP continue to increase after consideration of tranny power loss).
Also tranny Loss calculated at about 7%is not correct because it was calculated in neutral gear that is much less than real loss with gear engaged. As we have no clutch, that test is not possible.



Next week I'll confirm my butt dyno 25-35whp worth sensation for that added pulley.

- TB, Quaife and shorter final drive I already have and will be installed immediately after that.

What I want is to see my engine pulling till over 6700 (pulling, not just revving), with a flat, not downward sloped WHP curve at that level, unlike my present configuration that stops at 5000.

500+ WHP@6700 is my goal (note: I said 6700, not 6100 !).

Need a pretty powerful Header that should compliment a suitable Cam set

presently my options are for SLR or that german cam 264-268-lift11, that in my opinion has a too long duration
or ..if you'll find out how much is your current aggressive cam set .. and you find there's enough market demand for its StreetVersion