12.1@115.2mph with a piggyback - Page 11

02-21-2020, 05:27 PM

#251

18bora

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2020 GLC 63

JB4 was just removed for 30k service tomorrow. Basically, around 28k miles with the JB without a problem.

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06-08-2020, 04:30 PM

#252

18bora

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2020 GLC 63

Sharing my times with the new ride.

Stock, no mods.

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06-09-2020, 05:00 AM

#253

Howyalivin

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Awesome times. Now you need to get a JB4 on it and see what it can do!

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08-16-2020, 02:39 PM

#254

18bora

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2020 GLC 63

Quote:

Originally Posted by Howyalivin

Awesome times. Now you need to get a JB4 on it and see what it can do!

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08-16-2020, 03:09 PM

#255

C43HeartBoost

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C43

Impressive! Any future mods planned?

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08-17-2020, 09:15 AM

#256

18bora

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2020 GLC 63

Quote:

Originally Posted by C43HeartBoost

Impressive! Any future mods planned?

Do winter wheels/tires count.

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08-17-2020, 03:41 PM

#257

Howyalivin

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Quote:

Originally Posted by 18bora

https://www.youtube.com/watch?v=2wutjGiybjE

11.20s is definitely moving for just a JB4 and some fuel. I'd like to think that as the temps cool off and you get the chance to dial the truck in, that 10s are possible with just the JB4 and a good map 6.

The MPH seems low though for the times that you're running. Any ideas on that, or are GLS's just aero challenged at the top end?

Last edited by Howyalivin; 08-17-2020 at 03:43 PM. Reason: Adding comments

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08-22-2020, 10:28 PM

#258

18bora

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2020 GLC 63

Quote:

Originally Posted by Howyalivin

I'm not sure if 10's will be possible without additional mods, fueling was near maxed on those runs. As for the MPH, it is aero challenged and 21" wheels don't help either.

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08-22-2020, 11:36 PM

#259

Howyalivin

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True, I didn't even think about the wheels. Still. One amazing truck. If anyone can get an SUV in the 10s with just a JB4 and some octane, it's you. I'm rooting for you as the temps get colder. Even if you had to increase fuel delivery, I consider that fair game and still "Just a tune".

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08-23-2020, 01:54 AM

#260

blaise

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CLS400-3"downpipes cls63 exhaust and bbk BMS intake AMR rv3.1, 12.1@119mph 1.9 60'

wow good stuff... very impressive!!

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18bora (08-23-2020)

08-23-2020, 06:54 PM

#261

18bora

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2020 GLC 63

Just for giggles I decided to use this http://wallaceracing.com/hpcalculatorquarter.php to calculate horsepower/gains.
Using the averages of all the runs (excluding the 116mph run, since I lifted before the finish line) and using weight of 4,775lb

Stock:
ET average: 12.234
MPH average: 111.2575
Weight: 4,775
Your HP computed from your vehicle ET is 462.68 rear wheel HP and 514.09 flywheel HP.
Your HP computed from your vehicle MPH is 461.91 rear wheel HP and 513.23 flywheel HP.

JB4 MAP2/3:
ET average: 11.5165
MPH average: 118.246
Weight: 4,775
Your HP computed from your vehicle ET is 554.66 rear wheel HP and 616.28 flywheel HP.
Your HP computed from your vehicle MPH is 554.53 rear wheel HP and 616.15 flywheel HP.

JB4 Race MAP:
ET average: 11.305
MPH average: 120.006
Weight: 4,775
Your HP computed from your vehicle ET is 586.37 rear wheel HP and 651.52 flywheel HP.
Your HP computed from your vehicle MPH is 579.67 rear wheel HP and 644.07 flywheel HP.

Last edited by 18bora; 08-23-2020 at 07:09 PM.

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