So the Supra had its 1st weekend family outings.
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child seat fitting perfectly, missus not so.
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need a shorter girlfriend, having never really had a large displacement engine the foot to the floor with the Auto box is rather addictive.
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it just shifts.
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So the Mr2
I noticed a slight decline in smoothness over the few weeks, normal driving, after a few discussion with a few people and looking at the logs( no errors) there was a slight increase in over fuelling when changing gear.
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potentially Injectors letting by when closed.
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So a decision was made to go with some new injectors, ID Dynamics 1050, i believe i needed a New fuel rail to suit the new injector lengths, so ordered a Racer X fuel rail.
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this is due out this week, might just arrive before the weekend.
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So i decided to remove a few bits which then turned into the exhaust, Exhaust manifold, Turbo, Inlet manifold, Intercooler, Fuel Rail.
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EGT sensors.
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So now im back a semi blank canvas.
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new Exhaust manifold studs OEM to be fitted.
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Inspected the turbo, Couldn't see any issues no oil no wobbly wheels, blades are all un marked.
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Was probably 5 years ago this was last off, maybe more.
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So my plan will be to fabricate a new inlet plenum, maybe dual plenum type.
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New intercooler pipework to suit.
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I have also planned to go Electronic throttle using the bosch porche turbo throttle body, 74mm intake.
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new accelerator pedal to suit.
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found an oil leak near the distributor and oil had got onto the plug, on closer inspecting 2 of the wires had copper showing, maybe this was my issue with less smooth general driving.
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Next on the list was to improve the TTE WRC corrla manifold, currently the external waste gate has been bored right through the 4 way divider, i believe these are all like this.
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so the plan will be to machine out the internal remains of the 4 way and make a billet type flange inset to convert this to a twin scroll effect, hopefully improve the flow or remove back flow, i will merge cylinder 1&4 2&3 collecting together.
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this will be a bit of work, will need to reserch which type of materials to use( may not even be possible yet) the EGT im seeing are 750 peak at the manifold on the gt35.82.
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So with the turbo off, its made me think about other turbos.
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Initially a few people have mentioned the BW EFR range, new wheel design and amazing spool, slight risk of over speeding, so a speed sensor would be a must.
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the price seemed quite high.
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so after a bit of research ive decided to go with G25-660
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.92 AR.
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with a speed sensor as the machined port is just a plug in and play which i love.
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The G series wheel has been lightened with material taken out of the rear of the blades, also made from MAR-M rated to 1050 cc.
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(good enough for some anti lag maybe),
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There is not huge amounts of data out there, but its supposedly an improvement up from the gtx, The only down side is the fact these are not twin scroll but Vband great for installation but im sure a Vband/Twin scroll would also be a further increase in spool.
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May potential boost target should around the 4k RPM vs the gt35 at 5k for 2 bar not sure on BHP but they are close in terms of actual flow.
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hope to have this back on the road by the end of next month.
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will be interesting to see on a mr2.
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Fensport will end up mapping this again, i also been told they have this Turbo on there gt86 sprint car, not been able to get and dyno figures for this, but must be a decent spooling turbo if there involved in sprint.
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