Evo 9 down 5psi a week after tuned , runs fine but lost its top end
Joined: Dec 2010
Posts: 426
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From: Winchestertonfieldville (Rochester, NY)
Put air to your wastegate now and watch it to see how it reacts. You may be able to narrow it down without swapping the gate.
Joined: Dec 2010
Posts: 426
Likes: 22
From: Winchestertonfieldville (Rochester, NY)
Newbie
Joined: Mar 2025
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Leistungsverlust ist oft schwer zu finden, besonders wenn sonst alles passt. Ich würde Schritt für Schritt prüfen und mache zwischendurch Pausen mit Book of Ra DE, um klar weiterzumachen.
Last edited by WilliamMurray; Jun 2, 2026 at 06:33 AM.
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Joined: Mar 2025
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Had my car tuned last week remotely, was hitting 29psi the full day of tuning . Now a week later the car just doesn’t feel the same , peak is 24psi . Leak tested and found nothing , changed a few vacuum lines and the same . Most parts are new before the tune , pump , injectors , turbo . Not sure how well virtual dyno works but said 460 whp when tuned and now I’m reading 390 whp . Just drove the car 6 hrs this weekend on a trip and it runs fine but lost its pull . Anything idea ?
mods
Grimmspeed EBC
ETS intercooler piping. Home made 3.5” intake pipe
Invidia 3” downpipe
ARTEC o2 elbow 3.5” , WB sensor in elbow
test pipe 3” no cat
Trust Titanium catback exhaust 3”
CBRD front mount intercooler
Turbosmart BOV Kompact Dual-Port
Air filter PERRIN.
Gsc springs (5040)
Gsc S2 cams
Kiggly Head oil regulator
DeatschWerks DW300 320LPH Fuel Pump
AEM fuel rail , FP gauge on rail
ID 1050x injectors
FIC resistor pack
Stock fuel pressure regulator
FP exhaust manifold
New stock timing belt
DS5 Catch can 10AN open
ARP head studs 207-4203
AGT 57mm w/ MHI housing 22psi wastegate
Stock spark plugs
JDC Coil-On-Plug Ignition Systems
mods
Grimmspeed EBC
ETS intercooler piping. Home made 3.5” intake pipe
Invidia 3” downpipe
ARTEC o2 elbow 3.5” , WB sensor in elbow
test pipe 3” no cat
Trust Titanium catback exhaust 3”
CBRD front mount intercooler
Turbosmart BOV Kompact Dual-Port
Air filter PERRIN.
Gsc springs (5040)
Gsc S2 cams
Kiggly Head oil regulator
DeatschWerks DW300 320LPH Fuel Pump
AEM fuel rail , FP gauge on rail
ID 1050x injectors
FIC resistor pack
Stock fuel pressure regulator
FP exhaust manifold
New stock timing belt
DS5 Catch can 10AN open
ARP head studs 207-4203
AGT 57mm w/ MHI housing 22psi wastegate
Stock spark plugs
JDC Coil-On-Plug Ignition Systems
Spoiler
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PsychDr. HN$
Evo Dyno Tuning / Results
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Apr 29, 2011 06:19 PM