Dat73z Posted October 17, 2022 Author Share Posted October 17, 2022 Tonight I spent a few minutes and inspected the exhaust for leaks. I haven't been able to find any. I'm a bit concerned because my bumper chrome has been turning blue/rainbow around the exhaust. I think the fire out the exhaust on quick on/off boost transition at large throttle angles has been due to too large a pump shot. I already turned down the pump volume so I think the next step is one size lower pump jets which I'll try tomorrow. This is one of those things I'm hoping the tuner can investigate but I'll try and dial it in on the street first in case there are more important items to address during the limited dyno time. Quote Link to comment Share on other sites More sharing options...
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