thought i'de post this here coz its not exactly just VR4 specific.
ok so i took my mate for a spin earlier on coz he hadnt been in my car before.
As i planted it down the street it came on boost but not as quickly as it usually does but still you could tell it was there. didnt think much of it at the time.
went to the servo round the corner, grabbed what i had to, jumped back in the car
heading back i punched it again and worked my way through the gears. this time it went absolutley NOWHERE, i was at the top of fourth gear doing about 95kmh and came to the conclusion something was defintley not right
If i listened closely i could hear the spooling as per usual but not as loudly and when i came off throttle i didnt get my usual flutter (not running a BOV) but more of a "pshhhahhhhhhhhhh" sound
but a very smooth sound if that makes sense, like it was being dumped out a big gaping hole somwhere
so naturally i pulled over whipped out the torch and checked all my silicone joiners to make sure it hadnt popped off somewhere in the cooler piping and they were all fine
checked vaccuum linesand hose clamps and couldnt find a fault in it. I threw a boost guage on quickly and got a reading of 0.5 bar, maybe 0.6 bar if you really milked the gear and it took forever to get there
My initial usumption is that the wastegate has somehow stuck itself open causing it to bleed off and not build boost pressure...does this sound like the culprit? if so how can i double check and make sure it is the actuator?
could it be computer related? (running an Autronic SM4)
can driving it like this do any harm to the motor or anything else? i dont wanna destroy things
any insight would be much appreciated guys
ok so i took my mate for a spin earlier on coz he hadnt been in my car before.
As i planted it down the street it came on boost but not as quickly as it usually does but still you could tell it was there. didnt think much of it at the time.
went to the servo round the corner, grabbed what i had to, jumped back in the car
heading back i punched it again and worked my way through the gears. this time it went absolutley NOWHERE, i was at the top of fourth gear doing about 95kmh and came to the conclusion something was defintley not right
If i listened closely i could hear the spooling as per usual but not as loudly and when i came off throttle i didnt get my usual flutter (not running a BOV) but more of a "pshhhahhhhhhhhhh" sound
but a very smooth sound if that makes sense, like it was being dumped out a big gaping hole somwhere
so naturally i pulled over whipped out the torch and checked all my silicone joiners to make sure it hadnt popped off somewhere in the cooler piping and they were all fine
checked vaccuum linesand hose clamps and couldnt find a fault in it. I threw a boost guage on quickly and got a reading of 0.5 bar, maybe 0.6 bar if you really milked the gear and it took forever to get there
My initial usumption is that the wastegate has somehow stuck itself open causing it to bleed off and not build boost pressure...does this sound like the culprit? if so how can i double check and make sure it is the actuator?
could it be computer related? (running an Autronic SM4)
can driving it like this do any harm to the motor or anything else? i dont wanna destroy things
any insight would be much appreciated guys
