BIMMERPOST's Official F8X M3/4 60-130, 1/4 and 1/2 Mile Thread...

[M4Viper]

@astris

Around 7500 DA is about the lowest I get around here, usually around 8500-10000+ DA.

Impressive you broke into the 5s with stock motor no pi 👍

[astris]

Originally Posted by M4Viper

@astris

Around 7500 DA is about the lowest I get around my here, usually around 8500-10000+ DA.

Impressive you broke into the 5s with stock motor no pi 👍

🤯

Might as well add this for now. Done on 285/30/20 Michelin PS4S, stock motor, no meth, no PI. Was spinning to 90mph+, so hoping to get deeper into the 5s with the new R888R.

[astris]

1st solid attempt with the 285/30/20 R888R on. Overall worse conditions- lower E85% (E69), twice the incline, higher ambient temps. Faster time. Finally getting some traction.

Can't wait to see what this can do when temps drop and I find some level ground.

[TopJimmy]

Move me up the 1/4 mile list a little.

10.06 @ 146.4 MPH - 1.760 60' - TopJimmy / F82 M4 DCT / Built Engine & Head / Kratos EVOs / PJT E85+PI / XHP / Dodson / DSS / DR2s / DA ???

Sadly last Friday I wrecked her badly at the dragstrip trying to get into the Nines. I was so close. Time to rebuild… Y'all be safe making numbers.

-TJ

[BadBoostedBMWM3]

I hope you are okay^

[TopJimmy]

Originally Posted by BadBoostedBMWM3

I hope you are okay^

Thank you. Just a sprained wrist. Soooo lucky. The Big Guy was looking out for me.

[astris]

Originally Posted by TopJimmy

Move me up the 1/4 mile list a little.

10.06 @ 146.4 MPH - 1.760 60' - TopJimmy / F82 M4 DCT / Built Engine & Head / Kratos EVOs / PJT E85+PI / XHP / Dodson / DSS / DR2s / DA ???

Sadly last Friday I wrecked her badly at the dragstrip trying to get into the Nines. I was so close. Time to rebuild… Y'all be safe making numbers.

-TJ

that MPH is .

yikes! have you assessed all the damage? that has to hurt extra when it's a fully built monster.

[TopJimmy]

The price we pay sometimes, trying for glory.

This one is my payment. Can't give up…
I was only 0.076s from getting Kratos into the Nines.

I post the pic so we all remember the risk we take going fast. Stay safe brothers and sisters. I had a full face helmet and fire jacket on. Luckily the jacket wasn't put to its task.

[JAI///M3]

Wow man. Thanks for sharing. Definitely crazy how things can change in a fraction of a second. Glad you were able to walk away.

[heitzke]

Man i'm so sorry to see that TopJimmy . I'm glad you came out of it ok and can rebuild.

[9SECDD]

Originally Posted by TopJimmy

The price we pay sometimes, trying for glory.

This one is my payment. Can't give up…
I was only 0.076s from getting Kratos into the Nines.

I post the pic so we all remember the risk we take going fast. Stay safe brothers and sisters. I had a full face helmet and fire jacket on. Luckily the jacket wasn't put to its task.

DAMN, man! So sorry to hear and see that. Glad that you are relatively ok.

If you don't mind sharing...what happened? Lost traction on launch?
What tires?

[TopJimmy]

Originally Posted by 9SECDD

DAMN, man! So sorry to hear and see that. Glad that you are relatively ok.

If you don't mind sharing...what happened? Lost traction on launch?
What tires?

Was doing a solo run in the left lane. I usually pick left because any wheelspin in 3-4-5 will cause the rear to drift right a little. When I let off the pedal previously the rear always centered up just fine. I had already run a lucky ten-flat and was trying to break into the nines…to be first Kratos EVOs to make nines. I had managed to tune the trans with XHP to stick the dig in 1st and 2nd.

On this run in 4th I got the wheelspin and a little drift right, so I lifted…but the rear came center and across left. I steered left to try and catch the rear but the wall was coming in front of me.

I was wearing Hoosier DR2s…wide 315/30/18 and I had a line lock for heating them up. I had just replaced the rear toe and traction links with SPL, and had a fresh drag alignment (minimized camber and toe).

[9SECDD]

Originally Posted by TopJimmy

Was doing a solo run in the left lane. I usually pick left because any wheelspin in 3-4-5 will cause the rear to drift right a little. When I let off the pedal previously the rear always centered up just fine. I had already run a lucky ten-flat and was trying to break into the nines…to be first Kratos EVOs to make nines. I had managed to tune the trans with XHP to stick the dig in 1st and 2nd.

On this run in 4th I got the wheelspin and a little drift right, so I lifted…but the rear came center and across left. I steered left to try and catch the rear but the wall was coming in front of me.

I was wearing Hoosier DR2s…wide 315/30/18 and I had a line lock for heating them up. I had just replaced the rear toe and traction links with SPL, and had a fresh drag alignment (minimized camber and toe).

Damn. I just read that slow 4 times. Feel like I just re-lived it in your seat. Sucks man. Seems like you had everything accounted for and shit just happened. Dues paid.

You'll be back on the horse in no time and good for a while. Thank you for sharing.

[spidy512]

So glad your Ok bro. I just saw this. dang.

Sorry about the car.

Good health to you!

josh

[papasmurf_m3]

Originally Posted by TopJimmy

Was doing a solo run in the left lane. I usually pick left because any wheelspin in 3-4-5 will cause the rear to drift right a little. When I let off the pedal previously the rear always centered up just fine. I had already run a lucky ten-flat and was trying to break into the nines…to be first Kratos EVOs to make nines. I had managed to tune the trans with XHP to stick the dig in 1st and 2nd.

On this run in 4th I got the wheelspin and a little drift right, so I lifted…but the rear came center and across left. I steered left to try and catch the rear but the wall was coming in front of me.

I was wearing Hoosier DR2s…wide 315/30/18 and I had a line lock for heating them up. I had just replaced the rear toe and traction links with SPL, and had a fresh drag alignment (minimized camber and toe).

Just saw this. Glad you're ok Jimmy!!

And Soo close to 9s!!

[Jim45678]

Originally Posted by TopJimmy

The price we pay sometimes, trying for glory.

This one is my payment. Can't give up…
I was only 0.076s from getting Kratos into the Nines.

I post the pic so we all remember the risk we take going fast. Stay safe brothers and sisters. I had a full face helmet and fire jacket on. Luckily the jacket wasn't put to its task.

Sad to hear Glad you're OK TopJimmy.
Hope you get your car up and running soon to pass 10sec

[Jim45678]

Which TCU software is better for drag / roll racing? CS or GTS?

Perhaps from both xPH is the best one but for now I have these two as a choice of installation.

[TopJimmy]

Originally Posted by Jim45678

Which TCU software is better for drag / roll racing? CS or GTS?

Perhaps from both xPH is the best one but for now I have these two as a choice of installation.

Bootmod3 says the GTS Trans flash is for up-to 2018, and CS is for 2019 and up.

For real drag racing XHP allows you to adjust the Launch RPM and the traction control settings.

[Jim45678]

ok so having CS on my 2017 Sept build M3 is no point and it's better to upload GTS trans flash? I do roll racing mostly.

[astris]

This car is crazy consistent. Blows my mind. Same stretch of road, 45 min apart.

Also noticed lower ambient temps surprisingly haven't made that much of a difference. Ran roughly the same time with a 20°f higher ambient temp and slightly higher elevation.

[heitzke]

Still workin' through the tuning but for the sake of comparison, here's my 3rd run on the new setup with my 6mt car. It's wild to see how consistent the times are between me and Astris until the shift comes. I need a little help on the traction front on the initial hit, but i'm shifting at 6500 still. It seemed like shifting later was slower, but i'll play with the shift points a bit. Might be time for some stickier tires and some rear suspension goodies - the car is definitely wandering pretty hard.



tldr; DCT cars are fast.

[Ch0bi]

Originally Posted by astris

This car is crazy consistent. Blows my mind. Same stretch of road, 45 min apart.

Also noticed lower ambient temps surprisingly haven't made that much of a difference. Ran roughly the same time with a 20°f higher ambient temp and slightly higher elevation.

Awsome time, crazy fast, keep it up, mate!