100% WGDC, LOW LOAD, LOW BOOST

Discussion of tuning specific to MAZDASPEED6/MAZDASPEED Atenza/Mazda 6 MPS vehicles

100% WGDC, LOW LOAD, LOW BOOST

by deakgegi » September 18th, 2019, 9:49 am

Hi!

I have a 3" catless exhaust, hpfp internals, fmic.
I installed the ots tune from Versatune for 98 octane high load high flow downpipe.
Unfortunately my WGDC quickly goes up, while my boost pressure drops with load as well.
No knock is detected.

Do I have a boost leak?
Whcih components do I have to check, like bpv and wastegate?

Thanks for the help!
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Data log - 2019-09-17 19.50.11.csv
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Re: 100% WGDC, LOW LOAD, LOW BOOST

by mituc » September 20th, 2019, 9:44 pm

On stock turbo this is about as much as you can get. However I'd expect to see more in the mid range but this depends on what intake you have.
2008 Cosmic Blue Mazda 3MPS
Build engine + WMI + GTX3071, ~476WHP @31-32PSI
2008 Icy Blue Mazda CX7
Stock engine, intake and exhaust (YES!!), GTX2867 gen2 + Autotech HPFP, self-tuned to 320-ish BHP
VersaTuner guru
 
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