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Once you start pushing more boost, most factory diverter valves start to leak. Havent heard where that point is on the stock g70 diverter valves yet though. another thing to consider is some of the aftermarket BOV/Recirc Valves have quicker response times than stock ones. Again, with low...

I know this is an old thread but this response sums it up well. the piggyback units like the JB4 have been used for a long time on other platforms. While yes, they are "tricking" the ecu into adding boost/fuel/etc, they still retain the safeties built into the ECU and also incorporate their...

its a bunch of small pulls, but it isnt the pulls you need. you need to get pulls with throttle 100% through multiple gears to get a good set of logs to use to diagnose/tune. jb4 will combine multiple logs into 1 if you have that setting marked. idr exactly where the option is, but theres an...

theres really not going to be much of a difference blowing off or recirculating. There might be a slight reduction in spool time, but in all my years of running BOV and Recircs, it isnt really noticeable, especially with the small turbos these have stock. what it all boils down to is the...

get some logs with at least WOT through 2nd and into 3rd gear. Would be good to go WOT through 2nd and 3rd into 4th. As it is now, your only real wot pull doesnt show anything that looks out of the ordinary. Ignition, trims, fuel pressures etc all look fine in that one long pull.