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Discussion Starter #1
If you'd like to view our times you can go to the following link:

http://www.1320go.com/texasmotorplex/livetiming.php

Here are the car numbers:
darren_dallas = 4190 (M5)
DFW01E55 = 4186 (CL55)
bfnnrgn = 4189 (SL55)

Summary:

Below is my 5th attempt in the M5 (used "mash and go"):
Car CL55 M5
r/t .210 .560
60' 2.030 1.966
330 5.332 5.324
1/8 8.029 8.027
MPH 91.19 92.35
1000 10.370 10.338
1/4 12.337 12.266
MPH 113.61 117.47

Below is my 4th attempt in the M5 (used "mash and go"):
Car SL55 M5
r/t 1.060 .685
60' 2.125 1.986
330 5.452 5.380
1/8 8.159 8.095
MPH 90.87 92.06
1000 10.504 10.412
1/4 12.468 12.344
MPH 113.80 117.29

Below is my 3rd attempt in the M5 (used "mash and go"), also Mike (in the CL55) did not let his car cool down from the run before this one with me:
Car CL55 M5
r/t .305 .519
60' 2.124 1.950
330 5.702 5.290
1/8 8.473 7.980
MPH 89.42 91.98
1000 10.858 10.285
1/4 12.861 12.207
MPH 111.62 117.77

Below is my 2nd attempt in the M5 (used launch control):
Car M5 CL55
r/t .501 .108
60' 2.188 1.969
330 5.621 5.257
1/8 8.346 7.946
MPH 91.84 91.48
1000 10.668 10.270
1/4 12.603 12.220
MPH 115.26 115.82
 

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Discussion Starter #2
Videos:




Great time by all. Mike (in the CL55) is a true pro at driving the ///AMG. I could learn a few things from him. Once I figured out how to launch the car it performed very well over all, which is evident by the improved time and trap speeds. With a lot more practice I might be able to break 11.9x.

I have to say these M5's are consistent performers.

Thanks to my ///AMG friends Mike (CL55) and Robert (SL55) for coming and spending time with us.

Regards,

Darren
 

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Good stuff as always Darren!

Were there any other cars there to compare times? Z06's, stock M5's, etc. Nice job on your runs BTW, with a better 60' you could def be in the 11's Bro. :cool2:
 

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Excellente! Darren. Few questions:
1) Are you running all motor??

2) When you say mash and go, do you literally mean foot to the floor at the last yellow thru the kickdown, or do you modulate a bit until the tires hook?

3) What tire pressures are you using? Hard to tell, but it looks like you went back to stock wheels? Conti's or DR's?
 

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Are you stock? 117mph seems consistent with that but maybe the track was a slower one.

anyway, nice runs.
 

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A fan of both manufacturers but the results do not surpirse me.........great runs Darren!
 

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Looks like your 60' and 1/4 times aren't horrible. I'm surprised that
your trap speed is that low though. I was expecting more
like 120ish. Did you have a lot of wheel spin off the line?
How were your shift points? What was the temperature?
 

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Videos:

Great time by all. Mike (in the CL55) is a true pro at driving the ///AMG. I could learn a few things from him. Once I figured out how to launch the car it performed very well over all, which is evident by the improved time and trap speeds. With a lot more practice I might be able to break 11.9x.

I have to say these M5's are consistent performers.

Thanks to my ///AMG friends Mike (CL55) and Robert (SL55) for coming and spending time with us.

Regards,

Darren
Thanks for the kind words Darren, but your 60' was consistently better than mine. That's where the launch skill comes in and you clearly had the edge there.

My reaction times are what saved me from being shutout. Your car is definitely faster.

Thanks to you and Qdog and the other guys (M3) for a great night.

Maybe some night we get lucky and enjoy some 45 degree air, instead of last nights 63 to 70.
 

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Discussion Starter #10
Looks like your 60' and 1/4 times aren't horrible. I'm surprised that
your trap speed is that low though. I was expecting more
like 120ish. Did you have a lot of wheel spin off the line?
How were your shift points? What was the temperature?
You're one tough cookie to impress :biggrinbounce: I'm not sure about the wheel spin, but I feel now that I could have been more aggressive on the launch. I think I might have pulled back too soon on the throttle out of habit to proactively limit wheel spin.

I thought 117.7mph wasn't too bad. I have stock secondary cats, plus this was my first time ever at the drag strip with the M5. With race cats I think I can pull a slightly higher trap speed...maybe 119-ish. I think it would take some intake mods and/or cams to hit 120-122mph.

I was shifting between 7800-8000 rpms. I played with it a little. I was holding the last gear all the way to 8200 since my first run I shifted right before the finish line. I decided that was probably costing me some milliseconds or more so I would hold the last shift point until I crossed the 1/4 mile mark (I don't remember what gear that is switching into).

The temperature was mid-60's roughly.

More feedback welcome.

Regards,

Darren
 

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Discussion Starter #11 (Edited)
Good stuff as always Darren!

Were there any other cars there to compare times? Z06's, stock M5's, etc. Nice job on your runs BTW, with a better 60' you could def be in the 11's Bro. :cool2:
Literally all the vettes and stangs were pulling <114mph. I think my M5 was one of the fastest street ready production cars there. They had some true drag quality stuff that was psycho of course, but I didn't see their speed/time results. I'm sure it was crazy compared to mine. But otherwise, we pretty much owned the trap times/speeds!
 

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Discussion Starter #12
Excellente! Darren. Few questions:
1) Are you running all motor??

2) When you say mash and go, do you literally mean foot to the floor at the last yellow thru the kickdown, or do you modulate a bit until the tires hook?

3) What tire pressures are you using? Hard to tell, but it looks like you went back to stock wheels? Conti's or DR's?
1. Yes, all motor. I don't have any other options (no NOS, no forced induction).

2. With all my excitement I couldn't tell you now exactly how far down I was "mashing" the gas pedal. I suspect pretty darn far initially, but I would pull back and modulate very quickly.

3. The first 4 runs were done with 35 psi in the rear. The last run was done with 27 psi. I need to play that aspect more. Lower it and work on heating up the tires. I went back to my stock 19" wheels and had Toyo R888's installed on the rear. It was the stickest 19" tire I could think of, although it's made for autocross and has an extremely stiff sidewall. Don't know if it helped me, but it sure couldn't have hurt. I probably just need to drop the pressure more and figure out a way to heat them up. Their optimal operating temp is supposed to be 200 degrees. My burnouts were probably not nearly long enough to reach those temps. I need to figure out how to hold the car in place and spin those tires. Any suggestions?

Cheers,

Darren
 

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LOL! I'm not one to criticize as I haven't taken my car
to the drag strip yet either.

Do you have a diff? If not it might be interesting to do a run
in D5 and remove some of the shift point variables. Perhaps that
would also give you a baseline on where you can improve?
Also saw an interesting post a while back about at least starting
in D5 but have your S mode set at S6. Then try to shift at the
latest possible time in 1st. If you miss the shift auto mode will help
you from hitting the limiter.

Nice runs Darren! :cheers:


You're one tough cookie to impress :biggrinbounce: I'm not sure about the wheel spin, but I feel now that I could have been more aggressive on the launch. I think I might have pulled back too soon on the throttle out of habit to proactively limit wheel spin.

I thought 117.7mph wasn't too bad. I have stock secondary cats, plus this was my first time ever at the drag strip with the M5. With race cats I think I can pull a slightly higher trap speed...maybe 119-ish. I think it would take some intake mods and/or cams to hit 120-122mph.

I was shifting between 7800-8000 rpms. I played with it a little. I was holding the last gear all the way to 8200 since my first run I shifted right before the finish line. I decided that was probably costing me some milliseconds or more so I would hold the last shift point until I crossed the 1/4 mile mark (I don't remember what gear that is switching into).

The temperature was mid-60's roughly.

More feedback welcome.

Regards,

Darren
 

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Great Runs!


Regarding heating the tires, (especially with R888's) just hammer the throttle and apply brake shortly after. My best 60' times have been after major burnouts with 30psi in the rears. Those that say burnouts are unnecessary with 'street tires" are just crazy.


Cheers ///
 

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Looks like your 60' and 1/4 times aren't horrible. I'm surprised that
your trap speed is that low though. I was expecting more
like 120ish. Did you have a lot of wheel spin off the line?
How were your shift points? What was the temperature?

Nice Runs Darren.

Marshall, there seems to be thoughts by many members that 120ish was achievable with bolt ons.... It seems you really need open heart surgery like Keithta to hit 120's.

Darren has a fast car and he is hitting 117.5 with headers. Looks like the headers are good for 1-1.5 mph.
 

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Not thoughts, TB. It's FACT.:M5thumbs:

Bone, not doubting you man but can you see if you can replicate in tracks outside of ATCO.

Besides, my post doesn't apply to you since you have bolted on everything available of the V10 :cheers:
 
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