Sunir

You made the headers he's talking about for this 722hp CLS63? So your LT's will make 40hp without even a tune...if so that's a good mod, I'm interested in LT's for SL55...

hooleyboy

No I did not make the headers for Ricks CLS63. I wish we did though. However we got our hands on an SL55 for a trial fit once our headers are done. My guess is with some minor modifications on our end SL55 long tubes will available before summer is over.

I dont want to hijack the Rick's thread so If you are interested PM me. I will make a post in the SL55 section in the near future about the results we get for SL55 long tubes.

chiromikey

i don't care about numbers either, but dynapack's are typically the highest reading dyno around...ussually even higher than dynojets and almost always much higher than dd or mustang machines.

UT_AMG

That's badass. I wonder if I could get similar results with the E.

Marcus Frost

Jim I'm sorry to tell you but Dynapack does not read as low as Dyno Dynamics. It is lower than Dynojet, but only by a small amount.

From Dyno Dynamics:

I'm guessing you'd do in the low-mid 400s at CPT... right inline with my Stage 1 E55 (off spray of course). I don't see why we need to keep speculating... maybe I'm wrong... maybe you'll make good power... but I've seen a LOT of hearts broken on that dyno... it's legendary for it. What do you have to lose?

-m

hooleyboy

+1 dyno packs read the highest

juicee63

So who has the highest hp 63 in the world? Or at least in our world?

1.Jrcart or rarfinancial

722 at the crank compared to 621 RWHP are the two cars nearly identical?

I know Jim has hit 500 rwhp off the bottle, Rick what was your best crank pull off the juicee juice?

I don't care about the weather, I know we won't breal any records but we all know what our cars do in the heat and it is always fun to run. First day that comes avail we gotta get out and run em, AZ, CA, NV,Utah specifically mentioned for Mr. Pro


Im so excited to not be able to read your rear plate anymore while headed down the track.

Lets get out there and RUN THE DAM CARS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

RenntechE55

how does a mustang dyno read? thanks

jrcart

I don't really care about dyno figures, like I said my ET's speak for themself, but not quite sure where you are getting your info. My car pulled a 517 on a Dynojet 248 and a 489 on a Dyna Pack on the same afternoon. I had my E46 M3 on several Dyna Packs and it was always about 10% lower than the Dynojet figures.

MARCUSFROST; I plan on getting my BS up on the Dyno Dynamics rollers at Fluid MotorUnion in the next week or so, they are about 4 doors down from one of my buildings and 5 mins from my house, so it will be much easier than heading out to CPT in Melrose Park. Besides, I was planning on attending the dyno day you organized at CPT a while back but you guys did it on the one day that I told you from the begining that would not work for me.

jrcart

If I multiply my 621.7 times 18% driveline loss I come up with 733.6, I'm not sure if that is the proper way to calculate it but they are definetly close. If his numbers are accurate he should be capable of very low 11 second passes, possibly 11 flat in great conditions. One thing to keep in mind, my 621 was with .032 nitrous jets, I can safely run up to .052 jets which should net me an additional 60-70rwhp. Also that 621 was with airfilters installed, I don't usually run any filters on the dyno or at the strip.

Marcus Frost

Jim,

What if I was to offer to pay for your dyno at CPT? Hell maybe we can do a shootout... my light bolt-on 55 vs your monster EVOsport car? I know it sounds strange, but for some reason there just aren't a lot of 63 guys who've dyno'd around here and I really want to see how that motor does on their dyno. There was a C63 there last week and unfortunately the heartbreaker took another victim. With all the work your 63 has had done I'd really love to see what it does there. CPT is no more than a few blocks away from GRD, where you used their Dynapack...

I know dyno numbers are kind of worthless, but nonetheless your car would be worth it.

-m

MB_Forever

While we're on the subject, why is it that dyno dynamics read lower than a mustang dyno (or sometimes vise versa), or in more general terms, why are two eddie-current load-based dyno machines reading two different results? Is it just a matter of increasing or decreasing load force?

MB_Forever

How did the C63 do there?

jrcart

You don't have to pay for the dyno time, but thanks for the offer. I'll see what I can do about getting it over there. Like I said, I don't care if it reads 350rwhp, I only use dynos to gauge what type of gains different mods or tunes give my cars. The little slip they hand you at the end of the track is really the only dyno sheet that matters IMO.

blackbenzz

A 100 shot of nitrous made 132.3whp on a NA car? I'm going to go out on a limb and say it was more than 100 shot of nitrous or there were other variables changed.
+1. Fear my 432whp of FURY!!!!

jrcart

Ahmad, we were all wondering the same thing, we even pulled the jets out after the run just to make sure. They were indeed .032 jets installed. NA and nitrous passes were made back to back within about 5 minutes of one another. Nitous pull was first followed by 2 NA pulls, only thing I can think of is heat soke, but even in the worst of conditions I have not seen that significant of a decrease. There were about 250 witneses there that can vouch for the passes, the numbers and the size jets that were installed in the car. Alaksander and a few other AMG owners were there as well.

MB_Forever

LOL..... it'd be awesome to have a very low dynoing car that beats everybody at the track

blackbenzz

Wow, thats a nice increase! Back in the day when I was playing with nitrous I saw a 65whp increase with just a 50 shot but that was through the blower. Waiting to get bigger injectors and retune before i make some more passes and then maybe I'll start spraying at the track

jrcart

Ahmad, I have not spent much time on here lately have you improved on your 10.7 ( I think that's what it was)? Any new toys on the beast? I have not been on a drag strip since Pheonix over 2 months ago, now the heat and humidity is here so it looks like you are safe for a while

blackbenzz

No I have not imporved on the 10.7 I have been waiting for LET to come back out here to retune my car with the SLR injectors since I maxed out the stock ones with the last round of mods

Don't wanna hijack the thread, sorry. Nice gains from the longtubes lol

Marcus Frost

I can appreciate that Jim - and obviously whatever you make on the dyno isn't as valid as what happens at the track. Again, my curiosity stems from your car being unique in terms of the amount of work done and I just would like to see how it stacks up against the other platforms on a dyno that has an extensive database of AMG cars strapping down.

You found the time to strap down at GRD, a few blocks away, I'm sure you can find the time to put it on at CPT.

-m

Marcus Frost

It comes with how the feedback is interpreted by the machine... while I would argue that fundamentally the eddy-current dyno's are the best, that doesn't mean that the results they give back are perfect. I am pushing Jim because he's hit all these dyno's around here except the one that the rest of us use... and I think we are all interested to see just how his car would stack up against the V12, 55, and 55k cars on a dyno that's actually had them on there.

The C63 made ~350-352rwhp.

-m

Akademiks

A C63 push out 350WHP? A 100hp loss from the engine!? How...? I don't understand why different dynos post different numbers and what's the point of using one dyno from another.

Marcus Frost

Well he had a "tune" which CPT think was actually costing him HP... I agree 350rwhp is low for a 450hp car, but he never dyno'd stock to get a baseline. Now he's got a car low on power with a tune that should have given him power, but apparently took it away.

-m

c32AMG-DTM

jrcart, your math is incorrect (no disrespect, just FYI).

If you assume an exact 18% in driveline losses, 621.7 rwhp /(1-driveline loss) = 621.7/.82 = 758.2 crank hp. To double-check, you can work backwards: 82% of 758.2 = 621.7

722 crank hp should equal 592 rwhp, again assuming an exact 18% driveline loss figure.