Toyota Supra Mk4 resto & mods

We had this customers beautiful Toyota Supra Mk4 in with us for a load of maintenance work and some modifications too.

We fitted a freshly trimmed interior that the customer supplied, featuring leather trimmed seats and door cards. We also fitted a set of Junsei dash panels, these are reproduction dash panels made to a very high standard, you can’t tell the difference between these and genuine, highly recommended to give your Supra interior a fresh new look and feel. We finished it off with a new genuine Toyota gear lever panel, Toyota ashtray and Momo steering wheel.

Next up was a full rebuild of the of the rear suspension and subframe. We did the following work:

  • The subframe was removed, blasted and powder coated black
  • New Toyota suspension arms, nuts and bolts
  • Whifbitz adjustable anti roll bar kit
  • KW V3 adjustable height and stiffness coilovers
  • K-Sport 356mm front and rear brake kits
  • New brake and fuel lines
  • New Toyota subframe mounts, diff mounts and propshaft coupling
  • Whilst the rear subframe was out we also treated and protected the rear underside of the body to stop any further corrosion
  • New Toyota front arch liners with all new screws and bolts.
  • New Toyota front lower suspension arms

The original intercooler was corroded so we fitted one of our upgraded Whifbitz 4″ intercooler kits. The original radiator was in a state too so that was replaced for one of our Whifbitz polished radiators and the radiator shroud was broken so on went a Whifbitz carbon fibre shroud. New facelift headlights replaced the faded old headlights and we gave the engine a full service with new Toyota cambelt, Toyota water pump, NGK iridium spark plugs, Toyota fuel filter, Millers 5W40 engine oil, Toyota oil filter, Millers diff oil and Toyota V160 gearbox oil. We also fitted a Greddy Profec boost controller to turn it up to 1.2 bar which is the maximum recommended on the stock turbos, fuel system and ecu.

This particular Supra is running 1.2 bar boost on stock turbos and making a nice 362whp which is about 423bhp at the flywheel. As you can see from the video below its smoking, after some investigation including a compression and leak down test we discovered the engine wasn’t too healthy so the next step on this Supra is a full engine rebuild.

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