MY02 Boost increase
26 March 2002, 10:49 PM
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I have a UK 2002 WRX, I have been using an OBD2 cable and logging software to log the boost pressure that the ECU is seeing.
The highest reading I have measures is 97 kPa above the reading when the engine isn't running. Converted to PSI this is just under 14.1 PSI.
Is there any simple way to increase the boost by around 1 PSI, I want to keep the ECU over boost cutout in case anything goes wrong. I’m not to keen on the Dawes after reading about potential problems with high exhaust gas temperatures on part throttle.
Would a simple bleed valve fitted into the hose to the actuator do the job, or would the ECU see the higher boost level and compensate through the solenoid?
Any thoughts or info would be appreciated.
Cheers
E.
PS: I normally post with a different user name, but I am concerned about any dealer seeing this.
The highest reading I have measures is 97 kPa above the reading when the engine isn't running. Converted to PSI this is just under 14.1 PSI.
Is there any simple way to increase the boost by around 1 PSI, I want to keep the ECU over boost cutout in case anything goes wrong. I’m not to keen on the Dawes after reading about potential problems with high exhaust gas temperatures on part throttle.
Would a simple bleed valve fitted into the hose to the actuator do the job, or would the ECU see the higher boost level and compensate through the solenoid?
Any thoughts or info would be appreciated.
Cheers
E.
PS: I normally post with a different user name, but I am concerned about any dealer seeing this.
27 March 2002, 10:12 AM
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i run a dawes at 16psi on my MY01, and have been extremely careful to heed the advice of those who have experience of these things.
i do not have any problems with it whatsoever- the EGT issue has not been a problem- but i can only put this down to watching the gauges and not being greedy with the boost.
i recently invested in the scoobysport up-pipe to cool things further ( i alreadyy have a scoobysport full system) and am very happy with the results.
i do not have any problems with it whatsoever- the EGT issue has not been a problem- but i can only put this down to watching the gauges and not being greedy with the boost.
i recently invested in the scoobysport up-pipe to cool things further ( i alreadyy have a scoobysport full system) and am very happy with the results.
27 March 2002, 06:42 PM
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matt,
approx 1100f (i think that's about 600c)- the probe is in the downpipe just behind the turbo so probably is about 75 degrees lower than actual.
i was showing approx 1400f (approx 750c) max b4 changing to a scoobysport up-pipe but haven't noticed much of a temperature difference between dawes on or off. curretly running about 16psi and AFR still shows rich most of the time- you just need to be aware of the full boost / part throttle issue, but personally fuelling seems ok whatever and it's just down to being sensible really.
it'll probably go bang tomorrow after saying that
mail me if you want more info
simon.
approx 1100f (i think that's about 600c)- the probe is in the downpipe just behind the turbo so probably is about 75 degrees lower than actual.
i was showing approx 1400f (approx 750c) max b4 changing to a scoobysport up-pipe but haven't noticed much of a temperature difference between dawes on or off. curretly running about 16psi and AFR still shows rich most of the time- you just need to be aware of the full boost / part throttle issue, but personally fuelling seems ok whatever and it's just down to being sensible really.
it'll probably go bang tomorrow after saying that
mail me if you want more info
simon.
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