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Do have light flywheels and from memory I believe all of them do except the lowest power stock car. All of them except the 2 lowest power stock turbo cars also run UR crank pulley's, except I think one had a ASP.I have not had time to just test the outlet pipes....the full 2.5" fit poorly is the main thing, but air can not expand as fast as the couplers grow when running the full 2.5 outlets. I do not have good data on sport 500 and large pipes everywhere, but I would imagine they would do well. :Do any of the cars you have dyno'ed have other mods like 1 piece driveshaft, Lightweight pulley, ( I assume most also had lightweight flywheel )? :Do you have any comparison of the 2.5" full piping compared to 2.5" with your new Outlet transition to 2.5"? :Just curious. :My stock turbo Z butt dyno suggests similar low end strength (vs Top) with just Stillen intercoolers, Selin / dual pop, 2.5" DPs, ACPT driveshaft, SZ flywheel, UR pulley. :All of your info recently has had me wanting to pull this engine to add MS Manis and keep the stockers. Also considering using my 740cc injectors on the stock turbo Z and switching the Sp700 car to Brett's Top feed system. :Seems like the stocker with the breathing mods would be killer for autocross. :I have my old Sport 500s on a shelf. Do you think they would keep same Low end torque as stockers?
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