what kind of 1/4 can we expect without tunes
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From: Pacific NW
AMG GT-R
That should be your goal...but don't be surprised if your numbers are much worse. Last October I ran 3 times with an E.T. around 13.1-13.4 and consistent 110-111 traps, all stock except for charcoal filter removal and 19" AMG wheels which probably hurts a tiny bit. My excuses are: engine only had 2,000 mi (not fully broken in), brand new tires due to 19" upgrade (tires not broken in as well?), ran 40 psi all around (will lower the rears to 30-32 psi next time), and a first timer at the strip.
Now I have a host of goodies where I hope to drop a full second or more off my E.T. and hopefully gain 10+ mph. Have to wait until next Test 'N' Tune though which isn't until October
Now I have a host of goodies where I hope to drop a full second or more off my E.T. and hopefully gain 10+ mph. Have to wait until next Test 'N' Tune though which isn't until October
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Anything W/4Wheels
It's all about weather and tires.
Stock the same day I ran my 12.1 with m/t my friend on his ran a 12.200 at 114mph. That's was in -1500DA in winter Dec last day a atco.
That's my lowest time but I do have times upto 12.8 at 109mph but that was when my car had about 700 or 800 miles I forgot
Now a stock broken in c63 in summer time u looking at 12.6 at 113
p:s my friend had his stock tires on with about 3 k miles
Stock the same day I ran my 12.1 with m/t my friend on his ran a 12.200 at 114mph. That's was in -1500DA in winter Dec last day a atco.
That's my lowest time but I do have times upto 12.8 at 109mph but that was when my car had about 700 or 800 miles I forgot
Now a stock broken in c63 in summer time u looking at 12.6 at 113
p:s my friend had his stock tires on with about 3 k miles
Last edited by mthis; Aug 25, 2009 at 07:01 PM.
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From: FL
'09 C63 AMG
It's all about weather and tires.
Stock the same day I ran my 12.1 with m/t my friend on his ran a 12.200 at 114mph. That's was in -1500DA in winter Dec last day a atco.
That's my lowest time but I do have times upto 12.8 at 109mph but that was when my car had about 700 or 800 miles I forgot
Now a stock broken in c63 in summer time u looking at 12.6 at 113
Stock the same day I ran my 12.1 with m/t my friend on his ran a 12.200 at 114mph. That's was in -1500DA in winter Dec last day a atco.
That's my lowest time but I do have times upto 12.8 at 109mph but that was when my car had about 700 or 800 miles I forgot
Now a stock broken in c63 in summer time u looking at 12.6 at 113
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From: Pacific NW
AMG GT-R
There's nothing really in the PP upgrade that will help with the 1/4 mi imo. I thought maybe the LSD would help, but according to all the experts on here it doesn't drop your 1/4 mi times. And actually, I think the stiffer springs might hurt your launch. I'm no expert, but I think you want the rear to squat for better weight transfer and hookup off the line. I know one thing for sure, after changing out to coilovers, I could tell right away I was hooking up better as I can feel the rear end squat more during hard launches. I have the rebound/compression on the default settings btw. But I'll just have to wait and see what kind of 60' times I can cut in Oct.
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From: FL
'09 C63 AMG
There's nothing really in the PP upgrade that will help with the 1/4 mi imo. I thought maybe the LSD would help, but according to all the experts on here it doesn't drop your 1/4 mi times. And actually, I think the stiffer springs might hurt your launch. I'm no expert, but I think you want the rear to squat for better weight transfer and hookup off the line. I know one thing for sure, after changing out to coilovers, I could tell right away I was hooking up better as I can feel the rear end squat more during hard launches. I have the rebound/compression on the default settings btw. But I'll just have to wait and see what kind of 60' times I can cut in Oct.
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Anything W/4Wheels
I also ran at englishtown wher it's not a fast track. My best stock was 12.452at 114. Street tires with a 1.90 -60foot
In the end I have over 50 passes and time slips with this car.
The best is my sig. And the slowest would be my 12.8 at 109Mph
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Yes
I cannot imagine an LSD DOESNT help someone launch this car more effectively. Not to say it cant be done the same or near without an LSD, but consistency is the key - your 60ft times will be consistently lower with the LSD than without, given the same quality launch. More forgiving.
The brakes are lighter therefore reducing unsprung weight...that will also help in terms of acceleration - just a bit.
The brakes are lighter therefore reducing unsprung weight...that will also help in terms of acceleration - just a bit.
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BMW 335i, Ducati 996, Mercedes C63 AMG
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From: Pacific NW
AMG GT-R
Unfortunately I think most people overlook the suspension on the C63. While I agree it is definitely one of the best handling Mercedes out there in stock form, the coilovers really do transform the ride. Looks, handling, and overall ride were all improved. I lowered the car about 1-1/4", and after alignment the shop dialed in -2 degree camber on all fours. The combination of all the above makes for an even better handling C63. But don't just take my word for it...there are several others who have upgraded to the coilovers and echo the same sentiments so hopefully they speak up
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From: Pacific NW
AMG GT-R
I cannot imagine an LSD DOESNT help someone launch this car more effectively. Not to say it cant be done the same or near without an LSD, but consistency is the key - your 60ft times will be consistently lower with the LSD than without, given the same quality launch. More forgiving.
The brakes are lighter therefore reducing unsprung weight...that will also help in terms of acceleration - just a bit.
The brakes are lighter therefore reducing unsprung weight...that will also help in terms of acceleration - just a bit.
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From: Ny
Anything W/4Wheels
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Anything W/4Wheels
You know I thought the same thing. I was all ready to buy an aftermarket Quaife (sp?) LSD for that purpose, but I posed this question several times to all the drag racing gurus on the E55 board. I received the same answer from all the long time racers. What convinced me was after a couple members who actually upgraded to the Quaife LSD said their 60' times did not improve. It seems to be the general consensus that a LSD shines on the track in the twisties where you begin to lose traction but not in a straight line. Anyhow, that's just the information I've gathered...but if it truly does improve 60' times put me down for one cause I need all the help I can get with my 60'!
to me not having a LSD is like hell. the only way you will get good times is if you running drag radial (like i did when got best time) if you on street tires you can get a good 60foot BUT you might or will (like i did alot of times)spin one wheel when your car goes into 2nd gear. how ever when not running LSD you will lose alot of days at the track learning now to launch and whats going wrong and bla bla bla. the only way you can get a good time is at a track rental. and i was still spinning 2nd and got a 1.90 60-foot. and a 12.27 at 115. btw thats my best on street tires.
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C63 AMG
13.1 at 109mph I believe. 4000 alt or whatever its called. 60 time was 2.1 I think.
Its hard to launch these cars on street tires without spinning. I got some sticker tires, 40 treadwear, we'll see how that helps.
Its hard to launch these cars on street tires without spinning. I got some sticker tires, 40 treadwear, we'll see how that helps.
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See Sig
The LSD is good if your going on the twisties. For the 1/4 mile you dont need it unless its a street race with uneven pavement.
With a posi rear you will get much better launches. If you are melting your tires out of the hole then you need to either tub and run slicks at the track or just slicks.
With a posi rear you will get much better launches. If you are melting your tires out of the hole then you need to either tub and run slicks at the track or just slicks.
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2009 Mercedes Benz C63 AMG Arctic White PP
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Atco's times are inflated. I plan to make a trip out there and run one day.
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2009 c63, 2010 E63
For sure one of the fastest. It is the air they run in. My CLK55 ran 13.52@105.90 in nearly +2000 D/A. I lost my link to my conversion site,(was a mustang site), but I would roundabout guess if I ran in ATCO's insane -1500 D/A air, that same time would have been a 12.9@110 or so.
Atco's times are inflated. I plan to make a trip out there and run one day.
Atco's times are inflated. I plan to make a trip out there and run one day.
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Anything W/4Wheels
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