11.66 @ 121.14mph

[Charlie Brown]

Originally Posted by mainly

hey look, the guy on the right had a faster speed.

He should. He spent more time on the track! Lol

[mainly]

Originally Posted by Charlie Brown

He should. He spent more time on the track! Lol

lol.

so would that mean he would win if the race continued?

what was he in BTW?

[Charlie Brown]

Originally Posted by mainly

lol.

so would that mean he would win if the race continued?

what was he in BTW?

I guess that depends. I'm factory limited to 155mph. He was in a heavily modded, tuned, weight reduced E60 M5 with Hoosier competition tires. Look at the time slip, he left way early. He actually left on the first yellow and I ran him down at the big end. Truth is I was not racing him per se, he just happened to be the car next to me. I was racing the clock and just wanted to get into the 11s so I was not concerned with reaction time. He too was just trying to get a good time. He mentioned he has run better times but was having some unknown trouble that day.

[Charlie Brown]

https://www.dropbox.com/s/8o102uxxqs25n01/IMG_2304.MOV


I'm in the far lane.

[amgthis]

Originally Posted by Charlie Brown

https://www.dropbox.com/s/8o102uxxqs25n01/IMG_2304.MOV


I'm in the far lane.

Holy

F10s are friggin quick man, great launch!! What was in the E60? Sounded mean and trapped high!

[Charlie Brown]

E60 was without exhaust. Removed some interior and a sweet set of 10 velocity stacks sans air filters under the hood. It did sound mean. I'm sure he had more mods including a good tune. And the semi slick racing tires.

[stealth.pilot]

Originally Posted by Charlie Brown

https://www.dropbox.com/s/8o102uxxqs25n01/IMG_2304.MOV


I'm in the far lane.

That was a very good launch. No discernible wheelspin in the video.

[mauricef]

Originally Posted by Charlie Brown

All my runs except the one attempt with LC were in D3. No ability to rev before launching using D3. My technique was to shallow stage the car, hold brake with left foot, floor the gas, release the brake, wait for it...(seriously, it feels like it takes a second before the car responds. I could do this between the top and second yellow and not red-light). BANG! The revs shoot up and the car launches. Then it's a matter of modulating the throttle a bit and keep the rear wheels behind the front wheels.

Next time out I'm going to try S3.

It sounds like it behaved like my M3 DCT in auto mode. If you floor the gas past the detent it would raise the revs pause for about half a second and dump the clutch. It was like a mini launch control. I have not tried this yet in my M5.

[Charlie Brown]

Several asked questions about my launch technique:

Staging: Shallow stage; pull up and stop when pre stage lights up. Then just barely creep forward until the stage light lights. Try to get this down to where you can stop the car the instant the staging light comes on. Hard on the brake to prevent any roll-out which would start the clocks.

Launch: Floor it then release the brake. As long as you hold the brake the engine will not rev past 1200 rpm (in either D3 or S3) and the clutch doesn't seem to engage. When the brake is released it takes a few moments (seems like a half second) before the clutch is engaged. In that half second the revs build and you are hopeful the car doesn't roll forward (thus the reason I shallow stage the car). Then you feel the clutch engage, your hope turns to traction and no wheel-hop. If all is good, stay in it and enjoy the ride!

IMHO, I (all of us) can get the M5 into the 1.8s 60' with more practice and a good track. If so, this thing will run in the 11:50s on stock tires with no tune.

I'd be interested in what techniques others are testing.

[akh23456]

Originally Posted by Charlie Brown

Several asked questions about my launch technique:

Staging: Shallow stage; pull up and stop when pre stage lights up. Then just barely creep forward until the stage light lights. Try to get this down to where you can stop the car the instant the staging light comes on. Hard on the brake to prevent any roll-out which would start the clocks.

Launch: Floor it then release the brake. As long as you hold the brake the engine will not rev past 1200 rpm (in either D3 or S3) and the clutch doesn't seem to engage. When the brake is released it takes a few moments (seems like a half second) before the clutch is engaged. In that half second the revs build and you are hopeful the car doesn't roll forward (thus the reason I shallow stage the car). Then you feel the clutch engage, your hope turns to traction and no wheel-hop. If all is good, stay in it and enjoy the ride!

IMHO, I (all of us) can get the M5 into the 1.8s 60' with more practice and a good track. If so, this thing will run in the 11:50s on stock tires with no tune.

I'd be interested in what techniques others are testing.

i use the same method when i broke the record for e9X m3 for quickest ET but it was broken later. I really like the "mini" launches and can't wait to try the M5 at ATCO soon. We should get a list together with pics of slips so we can compare runs.

[harry$]

Originally Posted by Charlie Brown

Several asked questions about my launch technique:

Staging: Shallow stage; pull up and stop when pre stage lights up. Then just barely creep forward until the stage light lights. Try to get this down to where you can stop the car the instant the staging light comes on. Hard on the brake to prevent any roll-out which would start the clocks.

Launch: Floor it then release the brake. As long as you hold the brake the engine will not rev past 1200 rpm (in either D3 or S3) and the clutch doesn't seem to engage. When the brake is released it takes a few moments (seems like a half second) before the clutch is engaged. In that half second the revs build and you are hopeful the car doesn't roll forward (thus the reason I shallow stage the car). Then you feel the clutch engage, your hope turns to traction and no wheel-hop. If all is good, stay in it and enjoy the ride!

IMHO, I (all of us) can get the M5 into the 1.8s 60' with more practice and a good track. If so, this thing will run in the 11:50s on stock tires with no tune.

I'd be interested in what techniques others are testing.

What setting was used for the DSC ?

[mainly]

Originally Posted by Charlie Brown

Several asked questions about my launch technique:

Staging: Shallow stage; pull up and stop when pre stage lights up. Then just barely creep forward until the stage light lights. Try to get this down to where you can stop the car the instant the staging light comes on. Hard on the brake to prevent any roll-out which would start the clocks.

Launch: Floor it then release the brake. As long as you hold the brake the engine will not rev past 1200 rpm (in either D3 or S3) and the clutch doesn't seem to engage. When the brake is released it takes a few moments (seems like a half second) before the clutch is engaged. In that half second the revs build and you are hopeful the car doesn't roll forward (thus the reason I shallow stage the car). Then you feel the clutch engage, your hope turns to traction and no wheel-hop. If all is good, stay in it and enjoy the ride!

IMHO, I (all of us) can get the M5 into the 1.8s 60' with more practice and a good track. If so, this thing will run in the 11:50s on stock tires with no tune.

I'd be interested in what techniques others are testing.

thanks for that.

you mentioned you then modulate the throttle. do you remember at which point you floor it after the launch? before you hit 2nd? or 3rd?

[Tom C]

Charlie Brown:

You should post up the timeslip on dragtimes.com.

Tom

[Charlie Brown]

@ mainly - floored it from the line, lifted a little in second but just a little and just for a few moments to settle the car after the 1:2 shift.

@ Tom C - good idea. I'll look into that.

[mainly]

Originally Posted by Charlie Brown

All my runs except the one attempt with LC were in D3. No ability to rev before launching using D3. My technique was to shallow stage the car, hold brake with left foot, floor the gas, release the brake, wait for it...(seriously, it feels like it takes a second before the car responds. I could do this between the top and second yellow and not red-light). BANG! The revs shoot up and the car launches. Then it's a matter of modulating the throttle a bit and keep the rear wheels behind the front wheels.

Next time out I'm going to try S3.

holy crap i just tried that method for launching and i dont know how you got that to work.

you were right though, hold the brake, floor the gas, release the brake and nothing happens for at least a second!

but then SLAM!, the car launches but almost immediate, crazy wheel spin!!

like out of this world wheel spin!!!

i tried it 3 times and wasnt able to avoid it. as soon as the car launches i tried to let off the gas and modulate to avoid wheel spin but the wheels spin almost immediatly so there was no chance to catch it. it also reacts violently and shutters! i think it shifted to 2nd too all by its self, even though i had only moved a couple of feet.

weird thing is , i decided to try a couple of launch controls as well and they ALSO yielded lots of wheel spin! i dont remember getting any wheel spin before with LC

i wonder if its because im running a tune?


has anyone else tried this method for launching?

im curious to see if anyone has gotten it to work besides op.

[Northern X5M]

Originally Posted by mainly

holy crap i just tried that method for launching and i dont know how you got that to work.

you were right though, hold the brake, floor the gas, release the brake and nothing happens for at least a second!

but then SLAM!, the car launches but almost immediate, crazy wheel spin!!

like out of this world wheel spin!!!

i tried it 3 times and wasnt able to avoid it. as soon as the car launches i tried to let off the gas and modulate to avoid wheel spin but the wheels spin almost immediatly so there was no chance to catch it. it also reacts violently and shutters! i think it shifted to 2nd too all by its self, even though i had only moved a couple of feet.

weird thing is , i decided to try a couple of launch controls as well and they ALSO yielded lots of wheel spin! i dont remember getting any wheel spin before with LC

i wonder if its because im running a tune?


has anyone else tried this method for launching?

im curious to see if anyone has gotten it to work besides op.

I tried Charlie's technique but I just get massive wheel hop. I did cut my best time at the track last week, 12.1 @ 121 and 2.1 60 foot (hooked no spin). Next time I go to the track I am going to go with a full tank of fuel and I am going to air the tires down to about 20 or 25 psi. I had the most amazing race against a Z06 on my 12.1 run. I tree'd him out of the hole and beat him by 0.060, was an awesome race.

[akh23456]

22-24 psi for the rear tires is probably best anything lower than 20 your adding more drag.

[bm5bullit]

I am wondering if this will still work by hitting the brake, flooring it and then backing off the go pedal slightly to feather it out of the hole. I think I will be trying this launch method to see if it is any better.

[mainly]

Originally Posted by Northern X5M

I tried Charlie's technique but I just get massive wheel hop. I did cut my best time at the track last week, 12.1 @ 121 and 2.1 60 foot (hooked no spin). Next time I go to the track I am going to go with a full tank of fuel and I am going to air the tires down to about 20 or 25 psi. I had the most amazing race against a Z06 on my 12.1 run. I tree'd him out of the hole and beat him by 0.060, was an awesome race.

cool man.

did you get the wheel hop after letting off the gas or while you still had it floored?

[Charlie Brown]

@harry$ - DSC off

[mainly]

Originally Posted by bm5bullit

I am wondering if this will still work by hitting the brake, flooring it and then backing off the go pedal slightly to feather it out of the hole. I think I will be trying this launch method to see if it is any better.

you mean flooring it, then backing off before you actually launch?

hey thats not a bad idea.

backing off after you launch just gives massive wheel hop. its like theres about a second delay between what your foot is doing and what the engine is doing.

this car sucks for that. touch senstivity is not there.