Rick's Place

1992 Toyota 2.5GT TWIN turbo

Knoxville, TN

JZA70 BLITZ IC Install
Notice this Blitz LM Inter Cooler Kit V-spec (12351) is for a JZA70 JDM Supra, not a U.S. conversion. Some fabrication is required to fit it to the U.S. MKIII. You will have to give up the A/C or fabricate new lines. The center support between the front bumper and hood latch has to be cut to allow for clearance. I was in no hurry and this swap took me 1 day to complete as I had to determine the installation method from Japanese instructions intended for a JDM Supra.

Here is the kit. As you can see the intercooler is huge measuring 10-1/2H x 24W x 4D which means a very tight fit.
Blitz02 Blitz03 Blitz04

This kit can be installed without removing the front bumper assembly. It's up to you. I installed it without removing the front bumper. Refer to the TSRM for removing the front bumper.
  1. Remove the OEM intercooler by following these diagrams.
    Blitz05 Blitz06
  2. Disconnect the horn wires. Remove the center support by removing the 2 bolts attaching the support to the nose. Remove the 2 bolts on the ends of the hood latch. Remove the bolt behind the spring on the hood latch and under the front support as well as the lower support at the bottom of the condenser. Pull the center support out. This suppor will have to be cut to provide clearance for the intercooler to fit between it and the front bumper. I used the suggested layout from Blitz which was way off.
    Blitz07 Blitz08

    I finally cut as you see below to get the IC to fit without rubbing the support just below where the bottom horn attached.
    Blitz09

    Prime and repaint the support to prevent rust and lay aside to dry.
  3. If you use this IC the A/C line will have to be replaced with a custom line because the A/C connections on both sides of the condensor hit the end tanks preventing the IC from lining up correctly.
    Blitz10 Blitz11

    You have to remove the lower A/C tube at the bottom of the condensor and bend the driver side bracket back.
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    Plug all open A/C lines to prevent moisture from entering the system. I removed the long low pressure aluminum tube connected to the firewall that runs with the frame and replaced it with a short piece from the JDM clip until I can get a custom line built. It snakes right out from the front.

  4. If you do not have the OEM hydraulic fan oil cooler installed then skip this section. Remove the bottom hose and let the oil drain. Remove both hoses and unbolt the oil coolder from the front bumper.Reposition the air temp sensor at front to the far left.

    Bolt the brackets with the 6x15 bolts to the bottom cross member to hold the Blitz supplied oil cooler. (Do not use the aluminum spacers.) Bolt the cooler to the top of the brackets with the 8x15 bolts & nuts like below. Cut the hose into 2 equal lengths and connect to the supply lines as in the pic. NOTE: Prior to starting engine fill the fan reservoir to the HOT line and add oil as needed while the engine is running until no more bubbles appear.

  5. Install the 2 lower offset brackets to the front body cross member with the 6x15 bolts as shown in the diagram. Do not tighten. Reinstall the center bracket connecting the front nosepiece to the hood latch.

    Rotate the lower brackets out of the way. The top two brackets are installed where the 2 bolts hold the hood lock to the upper body cross member. Use the short aluminum spacer behind the passenger side bracket with the 6x25 bolt. TIP: If you are working by yourself, loosely bolt the top brackets to the IC and use them to lift the IC in place temporarily hanging the driver side bracket on the hood latch while you bolt the other bracket in place. Do not tighten. Bolt the bottom brackets to the IC using the 8x15 bolts as shown in the diagram above.

  6. Slip the bracket into the water overflow bottle. Turn the bottle upside down and slip into the opening above the IC on the passenger side and rotate the bottle up. Loosely bolt the bottle bracket to the IC on the left. While holding onto the bottle bracket, unbolt the top brace from the IC and slip the free end of the bottle bracket under the top bracket and replace the 8x15 bolt.

  7. Now you are ready for the hard pipes. Refer to the diagram for guidance. Note place all clamps just behind the raised edge of the pipes to prevent slippage under boost. All pipes are clearly marked with number and direction of flow.

    Pipe #1 - Install the straight 60mm blue coupling onto the turbo manifold on the passenger side and use small clamp. Slide the second clamp onto the coupling. Install bell shaped blue coupling halfway onto lower end of pipe #1and fasten with 60mm clamp. Insert pipe #1 into turbo manifold coupling. Do not tighten.

    Pipe #2 - Slide 70mm blue coupling 1-1/8" onto lower end of pipe #2 and fasten with large clamp. Slide large clamp onto pipe #2 from the other end and slide another clamp onto IC inlet. From underneath the car push pipe #2 up into the flared coupling onto pipe #1 align lower end with IC inlet. Fasten flare coupling to pipe #2 with large clamp. Slide bottom end of pipe # 2 onto the IC coupling and fasten with clamp. Be sure to check for clearance prior to tightening clamps. Tighten clamp at the turbo inlet on pipe #1.

    Pipe #3 - place blue couplings onto both ends of pipe #3 and fasten with large clamps. Be sure the clamp at the top is turned to the outside to avoid risk of hitting moving parts. From underneath car place large clamp onto IC outlet and feed pipe up through the enging bay. Slide pipe onto IC outlet and loosely fasten with clamp. Slide 70mm blue coupling onto intake manifold inlet and fasten with clamp. Slide 2 couplings onto pipe # 4 and insert bottom into pipe #3 and top into the manifold coupling. Tighten the bottom clamp first being careful that the screw is to the outside away from moving parts. Tighten clamp on top of pipe #4. Be sure the piping is away from the serpentine belt, PS pump and A/C compressor.

    Ensure all couplings are tight. Check that the IC is square with the frame, has clearance all the way around and tighten all brackets.
  8. Route the overflow bottle hose from the radiator inlet to the bottle using the supplied wire ties to hold it in place.
  9. And there it is...
Last update December 18, 2003
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