jimcarrier
Active member
hi guys, i would apreciate some help here as im kinda lost. Basically i bought one of those 2060vklr turbo to go on my alh. the thing is that it just wont make boost. i knew those where suposed to be more hi rpm turbo but it just make less boost than my old 1752vrk at any given rpm.
logging and tunning trough it. basicaly the ecm is closing the vane to try to get requested boost. even over 3000 rpm the vane are almost fully closed between 20-40% to make a shy 25 psi of boost. i tought i was needing more fuel but gauge still read 16 :1 ish at full throttle. i even went 12:1 to try to fix the issue but it havent.
i did test for boost leak, everything is fine.
more to it is that at first, when i was flooring it under 3000 rpm the backpressure would go so hi that it would overcome the actuator and bounce/surge like hell... i had to limit requested and duty cycle here to prevent this.
has anyone else bought those turbo from powertdi ?
logging and tunning trough it. basicaly the ecm is closing the vane to try to get requested boost. even over 3000 rpm the vane are almost fully closed between 20-40% to make a shy 25 psi of boost. i tought i was needing more fuel but gauge still read 16 :1 ish at full throttle. i even went 12:1 to try to fix the issue but it havent.
i did test for boost leak, everything is fine.
more to it is that at first, when i was flooring it under 3000 rpm the backpressure would go so hi that it would overcome the actuator and bounce/surge like hell... i had to limit requested and duty cycle here to prevent this.
has anyone else bought those turbo from powertdi ?