Tommyd16 Posted July 26, 2019 Share Posted July 26, 2019 Got a little issue with the supra. When travelling at high speed 90+ while accelerating the boost rises as normal then will completely drop off. Then come back and drop off etc momentarily. It’s a TT6 VVTI. Fitted new coil packs, leads and connectors a month ago. Has a CW FCD normal full BPU mods. When going through the gears everything boosts fine. Just when cruising in 6th and start to accelerate the issue arises as the speed starts to build. Any ideas?? Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted July 26, 2019 Share Posted July 26, 2019 Boost leak. High load, high boost, that will expose any leaks Quote Link to comment Share on other sites More sharing options...
Tommyd16 Posted July 26, 2019 Author Share Posted July 26, 2019 Will have to continue swapping hoses then. Thought I had done most of them. Probably one near the firewall at the back of the turbos. I haven’t done them yet as they are a pig to get to Quote Link to comment Share on other sites More sharing options...
Mike2JZ Posted July 26, 2019 Share Posted July 26, 2019 Are you hitting some sort of boost cut? Accelerating in 6th gear is going to cause high load, could cause your boost to overshoot depending on your boost controller setup. Quote Link to comment Share on other sites More sharing options...
Tommyd16 Posted July 26, 2019 Author Share Posted July 26, 2019 Nah tried it with the EBC turned off Quote Link to comment Share on other sites More sharing options...
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