UMW Stage 2 OVERBOOST
#1
UMW Stage 2 OVERBOOST
Well, I just finished installing Stage 2 from Kevin a few days ago. I have covered over 400 miles in the past 2 days to break-in the turbos and also to diagnose a small boost leak. I finally narrowed it down to a stripped intercooler bolt, which I fixed.
So, it was a cool 65 degrees tonight here in Jersey and I decided to take the car out for some full throttle runs. I was hitting peak boost at 1.4-1.5 bar!!! I hooked up two different boost gauges just to verify, at first I thought something was wrong. I shot an email to Kevin and sure enough the ecu was dialing in overboost due to perfect conditions. Or as he would say "the ecu was giving the green light."
This thing is friggin fast. This is honestly the best set of turbos and tuning I have had on any car. Thanks Kevin!
edit: Ecu dialed the boost back down to 1.2-1.3 bar the next day. Turned out my n75 valve was shot.
So, it was a cool 65 degrees tonight here in Jersey and I decided to take the car out for some full throttle runs. I was hitting peak boost at 1.4-1.5 bar!!! I hooked up two different boost gauges just to verify, at first I thought something was wrong. I shot an email to Kevin and sure enough the ecu was dialing in overboost due to perfect conditions. Or as he would say "the ecu was giving the green light."
This thing is friggin fast. This is honestly the best set of turbos and tuning I have had on any car. Thanks Kevin!
edit: Ecu dialed the boost back down to 1.2-1.3 bar the next day. Turned out my n75 valve was shot.
Last edited by Jay993turbo; 08-30-2007 at 07:03 PM.
#4
Well, I just finished installing Stage 2 from Kevin a few days ago. I have covered over 400 miles in the past 2 days to break-in the turbos and also to diagnose a small boost leak. I finally narrowed it down to a stripped intercooler bolt, which I fixed.
So, it was a cool 65 degrees tonight here in Jersey and I decided to take the car out for some full throttle runs. I was hitting peak boost at 1.4-1.5 bar!!! I hooked up two different boost gauges just to verify, at first I thought something was wrong. I shot an email to Kevin and sure enough the ecu was dialing in overboost due to perfect conditions. Or as he would say "the ecu was giving the green light."
This thing is friggin fast. This is honestly the best set of turbos and tuning I have had on any car. Thanks Kevin!
So, it was a cool 65 degrees tonight here in Jersey and I decided to take the car out for some full throttle runs. I was hitting peak boost at 1.4-1.5 bar!!! I hooked up two different boost gauges just to verify, at first I thought something was wrong. I shot an email to Kevin and sure enough the ecu was dialing in overboost due to perfect conditions. Or as he would say "the ecu was giving the green light."
This thing is friggin fast. This is honestly the best set of turbos and tuning I have had on any car. Thanks Kevin!
#6
Thanks guys. I couldn't believe the numbers at first, so I had an electronic and an analog boost gauge running simultaneously and seperately just so I could verify. Initially I thought my boost gauge was wacked, but nope. I was getting consistant readings from both gauges all night long. It ran like a bat outta hell.
Kevin offered to let me borrow his driftbox, so 60-130 times are in the near future
Kevin offered to let me borrow his driftbox, so 60-130 times are in the near future
#7
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#15
A tired/faulty N75 valve will not be able to allow enough control pressure to open the wastegate doors. If the gates aren't open long enough the boost will creap. The ECU will adapt.. Within a few miles Jay should see programmed boost levels. If these levels continue, a new frequency valve will be installed.