m1k3yzz Posted November 9, 2022 Share Posted November 9, 2022 Hi guys, just wantws to share the build we did on my Supra as I learned a lot on the na-t platform theough here. Engine Type - NA-T Engine Spec - stock with arp studs and TT headgasket, renewed all seals. Turbo - holset hx35 with 12cm2 turbine size Fuel Used - Shell RON98 (Dutch) Exhaust - DIY manifold with JCE custom 3” downpipe and exhaust with Japspeed ebay special muffler Transmission - W58 ECU - Greddy E-manage ultimate Mapped By - JT-Performance Dyno Used - Power figure - 426HP at crank Torque figure - 528NM at crank Boost Pressure - 1 Bar Quote Link to comment Share on other sites More sharing options...
Noz Posted November 9, 2022 Share Posted November 9, 2022 Very nice. Fast spooling. Not familiar with that turbo. Maybe consider disconnecting the flap in the intake manifold. Might be causing that dip in the middle range of the curve. 1 Quote Link to comment Share on other sites More sharing options...
m1k3yzz Posted November 9, 2022 Author Share Posted November 9, 2022 Thanks Noz! it had a FFIM, but I was also wondering why they couldn’t manage to get the dip out. It feels like it does have to do with the valve or at least the ecu thinking about the valve.. Quote Link to comment Share on other sites More sharing options...
Mike2JZ Posted November 9, 2022 Share Posted November 9, 2022 OEM ECU has some timing and fueling changes around where the valve should open/close. Your mapper should have mapped this out whilst tuning the emanage, but not the end of the world if he didnt. 2 Quote Link to comment Share on other sites More sharing options...
Noz Posted November 9, 2022 Share Posted November 9, 2022 2 hours ago, m1k3yzz said: Thanks Noz! it had a FFIM, but I was also wondering why they couldn’t manage to get the dip out. It feels like it does have to do with the valve or at least the ecu thinking about the valve.. Tidy looking bay. Mike's probably bang on the money. Looks like a tidy setup from the photo. You based in Australia 1 Quote Link to comment Share on other sites More sharing options...
m1k3yzz Posted November 9, 2022 Author Share Posted November 9, 2022 (edited) I think so too! They tried to iron it down but it because worse as HP increased. I’m based in the Netherlands, might some day show up at Silverstone Japfest, and else always welcome to come have a look Edited November 9, 2022 by m1k3yzz (see edit history) Quote Link to comment Share on other sites More sharing options...
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