juicee63

lets use cars same day same track for our comparisons not times from cars all over the usa


I respect you and your responses,

MB_Forever

Just curious, what is your best time and traps to date? Is your car still stock?

c32AMG-DTM

Really? If they produce the same times, why do so many people bother with a dedicated drag setup with DRs? That seems counterintuitive. I thought "most" guys (63 or otherwise) can lower their 60's and shave a couple tenths' worth of ET by using DRs (like M/T or Hoosier) instead of street tires (T1Rs, PS2s, Invos, et al).

Full Throttle

This is the post of the century.

MB_Forever

The battery and pulleys are back to stock.... you can now some up his mods as:

1) ECU Tune
2) Weight reduction (includes wheels - this one is the most important for the 63)
3) Sensor relocation.

The rest of his amazing times come from driver skill/experience (a lot of people under-estimate this), properly trained tranny (not just a reset), good track conditions, good weather conditions, etc...

MB_Forever

NOT on a stock E63.... I've ran side by side with another stock E63 countless times (username: gE63). He was running drag radials and I was running Continentals (stock tires), and his 60 foot was identical to mine. We switched drivers, cars, and tried a few other things. At the end of the session he did edge me out a little but not by much. For some reason, the 7g tranny bogs if you grip too good. This is still a mystery to me, as I'm trying to get to the bottom of it, but I do believe that once we figure out what exactly is happening with the 63 launch, drag radials will benefit us a great deal

Zod

[/QUOTE]

I agree to

juicee63

The 11.77 E55 was on street tires as was the 11.95 E63

as was the 12.1 E63

All the best times on stock cars are absent drag radials

juicee63

Perhaps if you ran your car instead of flapping gums you would already know this to be true.

A street tire on a well prepped track will do just fine.

Heck most 55 guys know this

Full Throttle

Put up your $20,000 and i will race your CLS63 rolling dumpster at any track in the country.

Yacht Master

Haven't had this much action here since Jrcart.

prodigymb

Cylinder Head

iTrader: (1)

Oh no, not again!!

MRAMG1

I hear you, now pass the

PS: What did ever happen to good old Jrcart

LB63

I figure the 6.2 will not benefit much from DRs because of the lower amount of torque compared to the 55k which has tons of torque and therefore a harder time hooking up.

MB_Forever

Correct..... the torque becomes noticeable right after 4500 rpm. However, on modded 63s, the torque arives a little earlier: 2.7k to 3k, which then would make drag radials more beneficial

deaguero

With Mileage requirements and the "Copenhagen" green requirements we all have to give up something, right!!

Anyway, the 55 rises again!!

I'll look forward to getting a new 55

Phil

deaguero

I guess DI is not the panacea that the emissions/mileage folks believe they are

c32AMG-DTM

MB Forever, as usual, very interesting info - thanks for sharing. While I agree 100% that same day, same track comparisons are best - I'd caution against drawing any definitive conclusions from a sample size of "one vs. one." To be clear - I don't have any beef with anyone in this or any other thread - but for someone to state "most 63 guys" (no mention of stock or modded) and then someone else reference one applicable, relevant heads-up result of two cars... while that may reinforce the hypothesis, it falls far short of confirming it (IMHO).

Last point first - a stock car result has to be absent DRs... since DRs make it no longer a "stock car." So, of course the best times would be absent DRs. Second - who has the E55 you mention? Hammer Down (according to his sig.) is "The Fastest Stock Powered E55 on DR's 121.67 in the USA
The Quickest Stock Powered E55 on DR's on the West Coast 11.79" - what was HD's best ET on street tires? 11.9 or so?

MB Forever - that does make some sense, for stock cars. Although, the 6.2L V8 makes plenty of TQ down low compared to the M112k (just saying, everything's relative ). Question - how much does the 7G let you preload the TC and raise the rpms before you start pushing through the beams? If high enough to spin a set of street tires - it would seem (hypothetically) that a properly heated set of DRs could yield a better 60' and ET... no?

juicee63

Our cars look identical, so...

Just run your beautiful CLS, beat my splits and I will STFU. Until you do your just a keyboard striker.


Your M113 is a super power plant as is the M156. We have already seen with the advent of the M159 the 6.2L V8 can achieve near 600 hp. STOCK

We are getting greener not meaner.

MB_Forever

No problem.... I always appreciate your input and point of view on any topic Regarding my quote, I was actually stating one case as an example. I didn't mean to provide a list of every attempt we made. I just posted my opinion from my own experience at several tracks. We tried a lot more than one case though: we tried DR and even full slicks on Juicee's car when it was fully stock and we tried a drag setup on yet one more E63 (white, the person was from OC) and very similar results. I am not saying DR won't help at all..... I am sure they do, but in the case of stock E and CLS 63s, there is something else going on and since there is a very limited selection of 63 owners who actually drag their cars often (heck I only know of me and Juicee who do , tuners haven't looked into the issue much. I don't have the technical background to know what it is, but I do feel it. The effects are reduced a little on a tuned car, but are still there.

c32AMG-DTM

Interesting indeed. Didn't realize it'd had been tested that extensively - good to know.

MB_Forever

I wouldn't call it intensively, but we have tried it on at least 4 different cars. And even more interesting..... results were a little better on lighter stock 63 models, aka, C63 and CLK63. I'm thinking that because of the nature of the 63 design, weight causes spikes in torque management interference at a much higher rate than it does on the 55..... but again, at this point, these are just observations. I wish some of the aftermarket companies would do more research on this.

prodigymb

are you guys using the same exact overall height tire on the 63? i read that newer cars act up if they sense gear ratio changing which can be caused by changing the overall diameter of the tire. i know the e55 monitors this too but it is a 5spd with much longer gears then the 7spd. maybe thats part of the issue.

enzom

That was my car. Sold it to another member this summer. Mystery solved.