E55... 1st post, 1st 1/4 mile pass...
04-28-2013, 02:29 PM
#26
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OP fix your cooling. Bigger HE, pump, and slit cooling is a must in FL. If your gonna track it a lot then you need some kind of tank, whether it be in the trunk or engine bay.
Good luck! Maybe we will see each other sometime.
04-28-2013, 03:37 PM
#27
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2014 cls63 a amg. 2018 AMG GTR
As long as you had fun , that is the main thing. 
M3 should not be chasing you down at all. I watched one run 108 traps all day long when it was 65 degrees out running bottom 13s. I agree with others that you need a new pump.
Aren't you supposed to launch these off idle and also use comfort or actually raise the car.
FYI you can get a wireless bluetooth obd scanner on amazon for $15 shipped and download Torque for your smart phone for scanning. Works great. Data logs clears codes and is very configurable.
M3 should not be chasing you down at all. I watched one run 108 traps all day long when it was 65 degrees out running bottom 13s. I agree with others that you need a new pump. Aren't you supposed to launch these off idle and also use comfort or actually raise the car.
FYI you can get a wireless bluetooth obd scanner on amazon for $15 shipped and download Torque for your smart phone for scanning. Works great. Data logs clears codes and is very configurable.
04-28-2013, 05:02 PM
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03 e55 AMG,
Sounds like your pump is weak and you are pulling a lot of timing on the second half of the 1/4 due to IAT's. You should be at least in the mid to low 12's bone stock. Definitely replace the IC pump, make sure its bled by the book,change the SC belt.
Another thing to consider, I felt a huge difference in power after replacing both upstream O2 sensors.
Another thing to consider, I felt a huge difference in power after replacing both upstream O2 sensors.
04-28-2013, 05:13 PM
#29
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03 e55 AMG,
As long as you had fun , that is the main thing. M3 should not be chasing you down at all. I watched one run 108 traps all day long when it was 65 degrees out running bottom 13s. I agree with others that you need a new pump.
Aren't you supposed to launch these off idle and also use comfort or actually raise the car.
FYI you can get a wireless bluetooth obd scanner on amazon for $15 shipped and download Torque for your smart phone for scanning. Works great. Data logs clears codes and is very configurable.
M3 should not be chasing you down at all. I watched one run 108 traps all day long when it was 65 degrees out running bottom 13s. I agree with others that you need a new pump. Aren't you supposed to launch these off idle and also use comfort or actually raise the car.
FYI you can get a wireless bluetooth obd scanner on amazon for $15 shipped and download Torque for your smart phone for scanning. Works great. Data logs clears codes and is very configurable.
On launch, what should I do just sidestep the brake and mash it off idle? (I am used to launching my 04 a4 GTO at about 2600rpm off the brake so that's what I tried)... It felt like it left really hard! No spin but yeah it fell off on the big end...
Thanks, I'll check into that obd it sounds cool!
04-28-2013, 05:23 PM
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03 e55 AMG,
I've got nothing new to add from a technical perspective, but I will give you props for posting your first dragstrip run, and being willing to share video even though you lost the race. It sure seems like there is a heatsoak problem since that M3 was able to drive around you on the big end of the track..... It takes a TON of power to chase someone down like that, so in this case I'd guess that you were actually LOSING a ton of power and slowly letting him reel you in.
Data logging would be a big help too. It cheap enough to do now. Eurocharged is about to release software to do it conveniently...so I'd keep an eye on that thread and get yourself a copy once it's released. Seeing your IATs on the datalogs will tell the tale.
-G
Data logging would be a big help too. It cheap enough to do now. Eurocharged is about to release software to do it conveniently...so I'd keep an eye on that thread and get yourself a copy once it's released. Seeing your IATs on the datalogs will tell the tale.
-G
04-28-2013, 05:28 PM
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03 e55 AMG,
You stated you've had your supercharger turn off twice before, this should not happen pretty much ever if your cooling system is working properly. You have a bad pump. Swap it out and watch your car go mid 12's at over 112+mph. May car ran 12.5@114mph stock in 90* temps and 80% humidity.
04-28-2013, 05:50 PM
#32
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I ran a 1.49 60ft. and run 1.5s all day. I NEVER launch off idle. I stall @1500.
This is on Hoosiers btw. Stock gears, stock Trans, and stock tc.
If you want 60s to go down, then get an LSD.
Last edited by RedBullJnky; 04-28-2013 at 05:56 PM.
04-28-2013, 08:59 PM
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2004 SL55
I've got an SL55 and just found this thread and wanted to offer my 2 cents, but I hope Im not being a but-in-ski.
I just took my car to the track yesterday for the 2nd time since I've owned it and found that mine launches best at 1200 RPM. I think coming out at 2000 RPM is a little too high. Im sure that your biggest problem is your IC pump like everyone is saying, but I still think you can benefit from backing off the RPMs a bit.
Launching at 1200, my 60ft times were 1.77 and 1.78. For the third pass I tried 1500. Too much. Broke the tires loose and had a 2.03 60ft. First 2 runs were 12.20 and 12.18 respectively and the third was a 12.66. 2/3 of the time I lost on the last run was in the 60' and all of it was in the first 330' as I spun into 2nd as well.
Also what was your psi in your rear tires? I take mine down to 20psi. If you're not lowering them when you get to the track, you need to do so. And what about traction control? Was it off?
To sum, I found that I launch best with the TC off, 20psi in the rear tires, and coming out at 1200 RPM.
Oh and Im running street tires...Hankook Ventus V12s on 20" rims.
Hope this helped a bit.
I just took my car to the track yesterday for the 2nd time since I've owned it and found that mine launches best at 1200 RPM. I think coming out at 2000 RPM is a little too high. Im sure that your biggest problem is your IC pump like everyone is saying, but I still think you can benefit from backing off the RPMs a bit.
Launching at 1200, my 60ft times were 1.77 and 1.78. For the third pass I tried 1500. Too much. Broke the tires loose and had a 2.03 60ft. First 2 runs were 12.20 and 12.18 respectively and the third was a 12.66. 2/3 of the time I lost on the last run was in the 60' and all of it was in the first 330' as I spun into 2nd as well.
Also what was your psi in your rear tires? I take mine down to 20psi. If you're not lowering them when you get to the track, you need to do so. And what about traction control? Was it off?
To sum, I found that I launch best with the TC off, 20psi in the rear tires, and coming out at 1200 RPM.
Oh and Im running street tires...Hankook Ventus V12s on 20" rims.
Hope this helped a bit.
04-28-2013, 09:29 PM
#34
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This place is a joke.
I've got an SL55 and just found this thread and wanted to offer my 2 cents, but I hope Im not being a but-in-ski.
I just took my car to the track yesterday for the 2nd time since I've owned it and found that mine launches best at 1200 RPM. I think coming out at 2000 RPM is a little too high. Im sure that your biggest problem is your IC pump like everyone is saying, but I still think you can benefit from backing off the RPMs a bit.
Launching at 1200, my 60ft times were 1.77 and 1.78. For the third pass I tried 1500. Too much. Broke the tires loose and had a 2.03 60ft. First 2 runs were 12.20 and 12.18 respectively and the third was a 12.66. 2/3 of the time I lost on the last run was in the 60' and all of it was in the first 330' as I spun into 2nd as well.
Also what was your psi in your rear tires? I take mine down to 20psi. If you're not lowering them when you get to the track, you need to do so. And what about traction control? Was it off?
To sum, I found that I launch best with the TC off, 20psi in the rear tires, and coming out at 1200 RPM.
Oh and Im running street tires...Hankook Ventus V12s on 20" rims.
Hope this helped a bit.
I just took my car to the track yesterday for the 2nd time since I've owned it and found that mine launches best at 1200 RPM. I think coming out at 2000 RPM is a little too high. Im sure that your biggest problem is your IC pump like everyone is saying, but I still think you can benefit from backing off the RPMs a bit.
Launching at 1200, my 60ft times were 1.77 and 1.78. For the third pass I tried 1500. Too much. Broke the tires loose and had a 2.03 60ft. First 2 runs were 12.20 and 12.18 respectively and the third was a 12.66. 2/3 of the time I lost on the last run was in the 60' and all of it was in the first 330' as I spun into 2nd as well.
Also what was your psi in your rear tires? I take mine down to 20psi. If you're not lowering them when you get to the track, you need to do so. And what about traction control? Was it off?
To sum, I found that I launch best with the TC off, 20psi in the rear tires, and coming out at 1200 RPM.
Oh and Im running street tires...Hankook Ventus V12s on 20" rims.
Hope this helped a bit.
Bob- What was the temperature when you ran these times?
04-28-2013, 09:49 PM
#35
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2004 SL55
1200 RPM also works best for me, on drag radials...I give about 1/2 throttle when the 3rd yellow lights up, wait to feel the car grab the pavement, then quickly but smoothly give it full throttle. You don't need full throttle for initial launch- My 60 ft were in the 1.70's. This was at 22psi on the drag radials. ESP ON for me, suspension in comfort mode.
Bob- What was the temperature when you ran these times?
Bob- What was the temperature when you ran these times?
Dragtimes.com has a DA calculator that gives you weather of the track the day you were there. It was just about 70 degrees, with 27% humidity and a BP of 30.25 for a DA of 1761.
04-28-2013, 10:20 PM
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03 e55 AMG,
I've got an SL55 and just found this thread and wanted to offer my 2 cents, but I hope Im not being a but-in-ski.
I just took my car to the track yesterday for the 2nd time since I've owned it and found that mine launches best at 1200 RPM. I think coming out at 2000 RPM is a little too high. Im sure that your biggest problem is your IC pump like everyone is saying, but I still think you can benefit from backing off the RPMs a bit.
Launching at 1200, my 60ft times were 1.77 and 1.78. For the third pass I tried 1500. Too much. Broke the tires loose and had a 2.03 60ft. First 2 runs were 12.20 and 12.18 respectively and the third was a 12.66. 2/3 of the time I lost on the last run was in the 60' and all of it was in the first 330' as I spun into 2nd as well.
Also what was your psi in your rear tires? I take mine down to 20psi. If you're not lowering them when you get to the track, you need to do so. And what about traction control? Was it off?
To sum, I found that I launch best with the TC off, 20psi in the rear tires, and coming out at 1200 RPM.
Oh and Im running street tires...Hankook Ventus V12s on 20" rims.
Hope this helped a bit.
I just took my car to the track yesterday for the 2nd time since I've owned it and found that mine launches best at 1200 RPM. I think coming out at 2000 RPM is a little too high. Im sure that your biggest problem is your IC pump like everyone is saying, but I still think you can benefit from backing off the RPMs a bit.
Launching at 1200, my 60ft times were 1.77 and 1.78. For the third pass I tried 1500. Too much. Broke the tires loose and had a 2.03 60ft. First 2 runs were 12.20 and 12.18 respectively and the third was a 12.66. 2/3 of the time I lost on the last run was in the 60' and all of it was in the first 330' as I spun into 2nd as well.
Also what was your psi in your rear tires? I take mine down to 20psi. If you're not lowering them when you get to the track, you need to do so. And what about traction control? Was it off?
To sum, I found that I launch best with the TC off, 20psi in the rear tires, and coming out at 1200 RPM.
Oh and Im running street tires...Hankook Ventus V12s on 20" rims.
Hope this helped a bit.
I will have to try this next time out... T/C was off and tire spin did not seem like a problem but I guess power was down. I think I will start with the pump and then play with some different techniques once I am sure it's running like it should. Thanks again for all of the tips!
04-28-2013, 10:51 PM
#37
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How the heck are yall getting 1.89-1.7 60 fts on reg tires??
I would kill for that! My 12.05 was with a 1.98.
Also, doesnt comfort mode leave in 2nd gear?
I would kill for that! My 12.05 was with a 1.98.
Also, doesnt comfort mode leave in 2nd gear?
04-28-2013, 11:02 PM
#38
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04-28-2013, 11:07 PM
#39
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And the suspension goes in comfort, not the trans.
04-29-2013, 07:56 AM
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05 White Pano E55, Cadillac CTS-V
I have found the best to just try and fight myself every which way possible to mash the gas and just ease in to it with traction control off and car in manual mode. That way I can get some ever so slight wheel spin and get some lower 1.9s but that still sucks.
04-29-2013, 11:42 AM
#41
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Redbull, you are probably correct, but I thought I red somewhere that the car leaves in 2nd gear in comfort mode... Im probably (most likely) wrong...
04-29-2013, 12:00 PM
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2014 cls63 a amg. 2018 AMG GTR
Here are two quotes I found for launching. The first is from a guy running 10.8-10.9s. AMGrocket is the second one and he pulled a 1.6 with street tires and is running 10.5s with rubber.
with DRs;
When you go back to the track set your psi at 20, raise your suspension, turn your shock setting off and get a nice burning going with you rolling out hot and then power brake just long enough to take the slack out of the suspension and then let it go back down to idle and when you are ready after the light turns green very quickly step on the gas at the same
Turn traction control off (I use dyno mode) raise suspension up to. Press the brake hard and give it a little as to help raise the rear up a little more while holding the brake then let back off the throttle. Then roll into the throttle. The last part depends on your tires and how it hooks up for you. I've cut 1.60's on street tires but like Lowprofile said Practice practice practice.
Last edited by dllhg; 04-29-2013 at 12:16 PM.
04-29-2013, 01:22 PM
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03 e55 AMG,
Before I tuned the tranny on my 4 speed GTO it would slip the belt slightly on the 1-2 shift as part of torque management programmed into the car from factory. After the tune the Goat just gave me big gnarly dangerous shifts no belt slippage. I wonder if a tranny tune on the 55 would do the same. Anyway thanks for the tip!
04-29-2013, 01:52 PM
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05 E55, 07 ML500
I'll bet you Definitely have a bad pump.. No way a M3 pulls on you at the back end of a 1/4... You were pulling timing big time.. New H/E, pump, belt wrap kit.. This will Definitely help.. Then go find that M3 again and tell him to bring it..
04-29-2013, 02:07 PM
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03 e55 AMG,
04-29-2013, 03:53 PM
#47
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I have a new Bosch HE pump, Shardul's belt wrap kit, 3 piece idler pulleys and upper pulley and ran 12.06 on street tires. Top notch items and highly recommend them!
04-29-2013, 04:39 PM
#48
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What I'm talking about is the button that changes from Sport1, Sport2, and Comfort. This does not change any gears.
After you do your burnout, you should hit the raise button(let the car fully raise). This helps with wieght transfer. In Sport2 the car is lower and and all the tq from the launch is on the inner tire. You'll spin.
That is what most people told me in a recent thread of mine including at least one person running 10s like you. Is you TCU tuned ? If it is that would be different. If the tune cant take advantage of the brake torquing , it makes sense it wont help but might even hurt
Here are two quotes I found for launching. The first is from a guy running 10.8-10.9s. AMGrocket is the second one and he pulled a 1.6 with street tires and is running 10.5s with rubber.
with DRs;
Here are two quotes I found for launching. The first is from a guy running 10.8-10.9s. AMGrocket is the second one and he pulled a 1.6 with street tires and is running 10.5s with rubber.
with DRs;
Or you can look up how many AMGs have launch a 1.4x 60ft. I know I'm on that very short list, anong with Blackbenz.And believe me, I know those quotes. I did the same thing when I first got my 55. I asked everything. Got alot of help to. But in the end, every car and driver is different. Its all in what ever works for you.
BTW amgrocket's 1.6 is at MIR. Or MIRacle track.
04-29-2013, 04:50 PM
#50
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