ghetto math to calculate whp from 100-200km/h

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Aug 10, 2020 | 02:04 AM
  #1  
some guy on IG told me he ran 5.2s 100-200km/h and i compared it to my 8.5s stock pulls to come up with this

Quote:
4.8s @ 930whp (turbos, meth, race gas, catless downpipes, ECU, TCU, CPC)?
5.2s @ 865whp (turbos, meth, race gas, catless downpipes, ECU, TCU, CPC)
5.5s @ 815whp (turbos, catless downpipes, ECU, TCU, CPC)?
6.0s @ 750whp (turbos, catless downpipes, ECU, TCU, CPC)?
6.5s @ 690whp (stage 2 ECU tune, downpipes, CPC tune)?
7.0s @ 640whp (stage 2 ECU tune, downpipes)?
7.5s @ 600whp (stage 1 ECU tune)
8.0s @ 560whp (stage 1 ECU tune)
8.5s @ 530whp (stock)
if anybody disagrees/has better data to input, i would be interested in hearing it so i can rerun the numbers. i just did simple percentage scaling with a few data points i have
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Aug 10, 2020 | 12:46 PM
  #2  
Quote: some guy on IG told me he ran 5.2s 100-200km/h and i compared it to my 8.5s stock pulls to come up with this



if anybody disagrees/has better data to input, i would be interested in hearing it so i can rerun the numbers. i just did simple percentage scaling with a few data points i have
I think that looks pretty good. I ran a 6.2 and I知 guessing I知 around 700-750
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Aug 10, 2020 | 12:58 PM
  #3  
Quote: I think that looks pretty good. I ran a 6.2 and I知 guessing I知 around 700-750
did you get your cpc done? did it make a difference?

buy this $15 tactrix cable from china if you don稚 have one already and i値l send you my logger so we can see what痴 going on

i wanna see your psi boost target, your ignition timing, your commanded torque, etc.
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Aug 10, 2020 | 01:18 PM
  #4  
Have you looked at CANable? https://canable.io/

Slightly more expensive but open source and I don't believe it is made in China.
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Aug 10, 2020 | 01:19 PM
  #5  
Quote: Have you looked at CANable? https://canable.io/

Slightly more expensive but open source and I don't believe it is made in China.
i wrote a userspace driver for this

i have 3-4 of them

tactrix openport comes with obd port, no need for special cable

and is cheaper/more popular

but my logger will work with that as well

canable also out of stock btw
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Aug 11, 2020 | 10:45 AM
  #6  
stage 3+ ($3.5k turbos, $800 turbo labor, $1.5k downpipes, $500 downpipe labor, $2k ECU tune, $1.5k CPC tune, $1.8k TCU tune + $1.5k for meth kit + $500 for meth labor + $150 for a few gallons of race gas)
---
4.8s-5.2s @ 865whp-930whp (turbos, meth, race gas, catless downpipes, ECU, TCU, CPC)?

stage 3 ($3.5k turbos, $800 turbo labor, $1.5k downpipes, $500 downpipe labor, $2k ECU tune, $1.5k CPC tune, $1.8k TCU tune)
---
5.5s-6.0s @ 750whp-815whp (turbos, catless downpipes, ECU, TCU, CPC)

stage 2 ($2k-$3k tune, $1.5k downpipes, $500 downpipe labor, $1.5k-2k CPC tune)
---
6.5s-7.0s @ 640whp-690whp (stage 2 ECU tune, catless downpipes, CPC tune)?

stage 1 ($2k-$3k tune)
---
7.5s-8.0s @ 560whp-600whp (ECU tune)

stock
---
8.5s @ 530whp

updated to include some costs, pick your poison guys!
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Aug 11, 2020 | 01:18 PM
  #7  
Looks like the CPC/TCU mod is a must.
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Aug 13, 2020 | 10:53 AM
  #8  
Quote: did you get your cpc done? did it make a difference?

buy this $15 tactrix cable from china if you don稚 have one already and i値l send you my logger so we can see what痴 going on

i wanna see your psi boost target, your ignition timing, your commanded torque, etc.
I got CPC via Edok. It definitely made a difference. Best 1/4 mile I did prior was 10.5-10.6 range at 130. Ran a 10.39 at 133 after CPC. I知 still on stock turbo and haven稚 done TCU tune. My guess is CPC tune will matter more when you upgrade turbos. Where CPC really helps is 60-130 since my car was a dog before CPC. Even after CPC my best 60-130 is 7.2 so my guess is stock turbos are maxed out.

I emailed you two JB4 logs.
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Aug 13, 2020 | 10:54 AM
  #9  
Quote: I got CPC via Edok. It definitely made a difference. Best 1/4 mile I did prior was 10.5-10.6 range at 130. Ran a 10.39 at 133 after CPC. I知 still on stock turbo and haven稚 done TCU tune. My guess is CPC tune will matter more when you upgrade turbos. Where CPC really helps is 60-130 since my car was a dog before CPC. Even after CPC my best 60-130 is 7.2 so my guess is stock turbos are maxed out.

I emailed you two JB4 logs.
7.2s 60-130 with what mods?

ecu tune
cpc tune
catless downpipes
airfilters
meth? or did you stop running meth?
Reply 0
Aug 13, 2020 | 11:31 AM
  #10  
Quote: 7.2s 60-130 with what mods?

ecu tune
cpc tune
catless downpipes
airfilters
meth? or did you stop running meth?
ECU tune, CPC tune, catless downpipes, filters, 50/50 meth
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Aug 13, 2020 | 05:00 PM
  #11  
Quote: I got CPC via Edok. It definitely made a difference. Best 1/4 mile I did prior was 10.5-10.6 range at 130. Ran a 10.39 at 133 after CPC. I知 still on stock turbo and haven稚 done TCU tune. My guess is CPC tune will matter more when you upgrade turbos. Where CPC really helps is 60-130 since my car was a dog before CPC. Even after CPC my best 60-130 is 7.2 so my guess is stock turbos are maxed out.

I emailed you two JB4 logs.
That's pretty impressive. Are you planning to do the TCU tune?
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Aug 13, 2020 | 05:24 PM
  #12  
what is 7.2s 60-130mph approximately converted to 100-200kmh?
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Aug 13, 2020 | 07:06 PM
  #13  
Quote: what is 7.2s 60-130mph approximately converted to 100-200kmh?
That same run I was 6.2s 100-200
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Aug 13, 2020 | 07:08 PM
  #14  
Quote: That's pretty impressive. Are you planning to do the TCU tune?
I would only do TCU tune if I go hybrid turbos. I would raise my race start to 4500 rpm also.

If I was keeping the car I would do pure 1000 and tcu tune but my friend is buying in January and he can spend his money on the car

Im moving onto a F90 M5 and I知 going to build the motor and trans and go all out. Will try to build a 9.5 s car.
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Aug 13, 2020 | 07:21 PM
  #15  
Quote: That same run I was 6.2s 100-200
6.2s 100-200 = 7.2s 60-130? am i reading that right? that sounds wrong
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Aug 13, 2020 | 09:33 PM
  #16  
Quote: 6.2s 100-200 = 7.2s 60-130? am i reading that right? that sounds wrong
To be exact It was 7.23 60-130 and 6.25 100-200. Exact same run.

It is correct. Looking at my dragy now.

To me it totally makes sense. 100-200 is 62-124 roughly. It makes sense you gain 1 second because those extra 6 mph from 124-130 are slow due to our small turbos.
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