100% WGDC, LOW LOAD, LOW BOOST

Discussion of tuning specific to MAZDASPEED6/MAZDASPEED Atenza/Mazda 6 MPS vehicles
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deakgegi
Posts: 1
Joined: September 18th, 2019, 9:47 am

100% WGDC, LOW LOAD, LOW BOOST

Post by deakgegi »

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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mituc
VersaTuner guru
Posts: 1323
Joined: December 17th, 2011, 2:47 pm
Location: Iasi/Romania

Re: 100% WGDC, LOW LOAD, LOW BOOST

Post by mituc »

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
Built engine + WMI + GTX3071 gen2, ~509BHP @34PSI
2008 Icy Blue Mazda CX7
Stock engine and exhaust (YES!!), JBR3" + GTX2867 gen2 + Autotech HPFP, self-tuned to 330-ish BHP
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