Project STurdteen, Plumbing the Motor and Getting Her Ready to Run!

The Koyorad radiator is truly a drop in piece.   The stock mounts fit perfectly.

With a new engine oil cooler, power steering cooler, intercooler, and a greatly improved radiator, we have increased the car’s cooling capacity by several hundred percent. The car’s previous cooling woes should be in the past.

We replaced the old and weak radiator hoses of dubious origin with heavy duty 4-ply reinforced silicone hoses from HPS. These hoses have greatly improved temperature and burst resistance over the standard rubber OEM type hoses. This is important as we have upped the coolant pressure with the higher pressure Koyorad radiator cap.

The HPS radiator hoses are molded and are a direct replacement for the OEM hoses and fit perfectly.

All of the charge pipes had dubious couplers as well. Some were even single ply rubber, a burst waiting to happen!  We replaced them with 4 ply HPS high-temperature silicone couplers for an order of magnitude more reliably.

An HPS reducer coupler was used at the throttle body. This coupler was previously only single ply and rubber. Why this was used for a boosted application was beyond us!

10 comments

    1. Bring your ride to the MotoIQ Garage and we’ll gladly make one for you. But no, we won’t be making them in batches to sell.

  1. Slightly banal nitpicking, but with such nice hoses you should really use band clamps that do not dig into the hoses. They are standard on VWs, which is one of the few things on Vdubs that are intelligently designed.

  2. I’ve been meaning to improve the breather system on my SR20. My question is, can I remove the PCV valve and still have a suction hose on the the catch can? Meaning, Not vent the catch can atmospherically? I am currently running a MAF.

    1. Hi Jose, in the case of a MAF equipped engine you can vent the catch can behind the MAF and in front of the turbo compressor inlet as in the case of OEM application. Be sure to put the vent as far away from the MAF as possible so blowby gasses don’t contaminate the hot wire.

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