The standard 1G-FE engine is quite fragile, so we consider it essential to upate the internal engine components if a stage 2 performance upgrade is being implemented.

The weakest link is the fragility of the connect rods so these must be replaced as a matter of priority.

We use forged steel connecting rods with high tensile bolts.

These can be viewed and purchased at

www.tdi-plc.com/catalog/product_info.php?cPath=107_197_214_384_389&products_id=4103

These are 4 of the 6 forged steel uprated connecting rods for Lexus is200

We also install lower compression forged aluminium racing pistons. It is important to realise that there are significant variations in piston design and qualities, even from the same manufacture. We always specificy the very best materials which have a low expansion rate. This means that we can use a tighter bore clearance which provides quieter operation and low oil consumption. Also of high significance is our design piston crown. When compared to inferior designs you can see that we have retained the squish band to maintain maximum combustion efficiency.

Here’s a picture of a piston the we use.

The forged alloy pistons for Lexus iS200 can be purchased at www.tdi-plc.com/catalog/index.php?cPath=107_197_214_384_389

Here’s a couple of pictures of the engine during the course of the rebuild

Heres the stage 2 supercharger pulley kit installed

This car has automatic transmission so you can see that getting the Katana intercooler, TDI oil cooler and TDI transmission cooler requires a fair amount of work as there isn’t much room in front!

Here’s the Katana high performance exhaust manifold installed

Here’s the finished article