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Technical Topics B58 6-Cylinder Turbo Engine / Drivetrain / Exhaust Modifications M340ix MHD Stage 2 100-200 measurement

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      08-31-2020, 02:55 AM   #1
john!smith
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M340ix MHD Stage 2 100-200 measurement

Hi,

i received my P-Gear P610 (20Hz) meter and did a few test runs.

car data: M340i xDrive, EU spec with OPF/GPF (Feb. 2020)

modifications:
custom catless downpipe by MH-Pipes with OPF sensor connection
charge pipe by TurboPerformance
MHD Stage 2 Tune 102 octane (not final version)
(gas particle filter is still mounted and active)


car was in sport plus and traction mode
driver weight 187lbs (85kg)
fuel level was about 50%

run 1 was with -1,4% slope 7,94 sec. 100-200 kmh (62-124mph)
run 2 was with -0,1% slope 8,15 sec. 100-200 kmh (62-124mph)


high 7's and low 8's are repeatable…


next steps will be a heat exchanger, intake and maybe a custom exhaust. pureturbos have allready upgrade turbos upcomming, but i think i keep it at this level.
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      08-31-2020, 07:20 AM   #2
Denys_BMW
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Nice result. What do you think, is it real to go to low/mid 7 on stock turbo?
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      08-31-2020, 09:19 AM   #3
john!smith
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hard to say... i have about 22 psi (1.55 bar) peak and wouldnt go much higher than that. for low 7s a upgrade turbo is a must have i guess. with a pure800 upgrade you can reach up to 650-700hp at the crank. next limitation will be the zf8hp gearbox.

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      08-31-2020, 09:32 AM   #4
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M340i has ZF8HP51. It must be strong.
Its so interesting to watch some logs MHD OTS on M340i xDrive.
This few pulls I made two days ago on E22 (98Ron + 100% Ethanol) https://datazap.me/u/denysbmw/m340i-...23-24-25-26-27
Vehicle is stock.
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      09-11-2020, 10:24 AM   #5
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… These are my actual best dragtimes
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      09-11-2020, 12:52 PM   #6
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Quote:
Originally Posted by john!smith View Post
… These are my actual best dragtimes
100-200 large slope.

Last edited by Alexey; 09-11-2020 at 12:59 PM..
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      09-12-2020, 09:54 AM   #7
john!smith
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Quote:
Originally Posted by john!smith View Post
… These are my actual best dragtimes
you can use a online correction calculator

-2,0% slope is 7,89 sec. corrected
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