Mike2JZ Posted March 17, 2020 Share Posted March 17, 2020 I know lots of the NA guys have been discussing the use of VVTI NA heads for future builds. It's not in a Supra, but I've been lucky enough to build this car for a friend and we got a bit carried away. The good news is that 2JZGE VVTI is an awesome platform for power once built. Makes what is basically a big diesel truck turbo come on fairly responsively so some bottom end pull can be enjoyed before holding on as it revs to 8k+ Engine Type - 2JZ GE VVTI Engine Spec - SRD Stage 3 Head, SRD Stage 1 Block, BC 272 Cams, FIC 1200 Injectors, NPBoosted Inlet Manifold, Walton T4 Twinscroll Manifold & 60mm Turbosmart GenV Wastegate, 5'' Whifbitz Intercooler Turbo - Borg Warner S369 1.0 A/R Fuel Used - Shell VPower & 60% Ethanol Exhaust - 3.5'' Downpipe to twin 3'' exhausts Transmission - Stock R154 (Brand New) ECU - Link ECU Mapped By - SRD Dyno Used - SRD Pump fuel figures - 738 horsepower @ the wheels, 611 ft.lbs of torque @ 1.8 Bar Boost 60% ethanol - 845 @ the wheels, 716 ft.lbs of torque @ 2 Bar Boost Pump Fuel - Wastegate Pressure 1 Bar Pump Fuel - 1.8 Bar Ethanol 60% - 2 Bar Boost VVTI On & Off Comparison at low RPM. Boost limit set to cut ignition when 1 Bar boost reached. Much nicer bottom end power and faster spool. Quote Link to comment Share on other sites More sharing options...
Noz Posted March 17, 2020 Share Posted March 17, 2020 Incredible build. Some top work there clearly shown in the power values. Was the R154 modified in anyway? Lovely to see people utilising the GE items more these days. Great power on size of the turbo. Lovely shot with the vvti on and off also. Good data to have. Would love to see a full plot. Top work. Quote Link to comment Share on other sites More sharing options...
Mike2JZ Posted March 17, 2020 Author Share Posted March 17, 2020 Incredible build. Some top work there clearly shown in the power values. Was the R154 modified in anyway? Lovely to see people utilising the GE items more these days. Great power on size of the turbo. Lovely shot with the vvti on and off also. Good data to have. Would love to see a full plot. Top work. Thanks For anyone building a high power JZ setup, this is a perfect example of good power being achieved minus the additional mark up of buying a GTE engine to start with. R154 is completely stock, purchased new from Toyota Japan few months ago. I doubt the box will last long especially on high boost, but shall see how it gets on, could surprise us. If not, will drop a HD gearset into it once it breaks. I don't have a full plot as I didn't bother doing a full non vvti run versus vvti with this car, but can find a graph from another car here Quote Link to comment Share on other sites More sharing options...
Mo Reviews Posted March 18, 2020 Share Posted March 18, 2020 Awesome work, Mike. I imagine your friend was quite happy with the results, I know I would be?! Quote Link to comment Share on other sites More sharing options...
Style Posted March 18, 2020 Share Posted March 18, 2020 Epic! Great to see the NA-T's making big power Thoughts in the intake manifold? Never heard of it before so would be good to see if it's worth going for Quote Link to comment Share on other sites More sharing options...
Mike2JZ Posted March 18, 2020 Author Share Posted March 18, 2020 Awesome work, Mike. I imagine your friend was quite happy with the results, I know I would be?! Yeah he's pretty chuffed so far. Will be interesting to see how a big power JZ in a luxury barge feels like Epic! Great to see the NA-T's making big power Thoughts in the intake manifold? Never heard of it before so would be good to see if it's worth going for For the money its pretty good. I'd still class it as an eBay part, but of the eBay manifolds you can buy its the best i've used. Not much else on the market for £500 that can compete with it. Drivability is good, throttle feels fine, quality is pretty good and it supports the power. Only issue so far I've had is the throttle sticking as the butterfly valve screws loosened and the throttle blade moved after seeing lots of high boost action. Screws have been resealed in now, will see if they move again. If so will have to find another solution. Quote Link to comment Share on other sites More sharing options...
Noz Posted March 18, 2020 Share Posted March 18, 2020 I've see Luxs plot before which is why I was keen to seen another one. As his is the only full run I've seen. After marker throttle bodies are always a bit touch and go. Quote Link to comment Share on other sites More sharing options...
AC93 Posted March 18, 2020 Share Posted March 18, 2020 Very cool, I'm about a week away from starting up my forged VVTi NA-T engine with a BW S364sxe and BC stage 2 cams, hoping for similar figures.. will see what happens! Quote Link to comment Share on other sites More sharing options...
Luxluc Posted March 18, 2020 Share Posted March 18, 2020 Nice result. Quote Link to comment Share on other sites More sharing options...
WayneW Posted March 24, 2020 Share Posted March 24, 2020 Great job Mike I really like to R&D you still make on 2JZ engines, that's what makes SRD the best place for me to go. Can't wait to take 2.0 bars on mine haha Quote Link to comment Share on other sites More sharing options...
WayneW Posted March 24, 2020 Share Posted March 24, 2020 Mike, what would be the gain with a GTE VVTI head ? Quote Link to comment Share on other sites More sharing options...
Mike2JZ Posted March 24, 2020 Author Share Posted March 24, 2020 Mike, what would be the gain with a GTE VVTI head ? Gains compared to what? Quote Link to comment Share on other sites More sharing options...
WayneW Posted March 25, 2020 Share Posted March 25, 2020 GE VVTI head GTE VVTI head This setup still have the GE VVTI Head right ? Quote Link to comment Share on other sites More sharing options...
Mike2JZ Posted March 25, 2020 Author Share Posted March 25, 2020 GE VVTI head GTE VVTI head This setup still have the GE VVTI Head right ? Yes this is using a ge head with small port and polish. We overlaid this vs similar gte builds and the results are very similar. Gains are negligible between gte and ge from what I can see so far. Quote Link to comment Share on other sites More sharing options...
lexmk4 Posted August 20, 2020 Share Posted August 20, 2020 Might have not seen it . but what coilpacks where used? Quote Link to comment Share on other sites More sharing options...
Mike2JZ Posted August 20, 2020 Author Share Posted August 20, 2020 Might have not seen it . but what coilpacks where used? NGK "R8" Coils Quote Link to comment Share on other sites More sharing options...
lexmk4 Posted August 20, 2020 Share Posted August 20, 2020 Awesome thank you very much Quote Link to comment Share on other sites More sharing options...
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