Racing Tdi

As I sayd before, the air intake, was not ok. The stress bar was not in place because it didn’t fit with the current air intake pipe. A new BMC CDA intake is going to be installed. Plus the last powerflex brushes are going to be installed to. I’m also thinking of changing all the looks for a complete German style bodywork. My TDI Racer is almost… ready…

Maintenance is a very important factor to every engine, to achieve longevity and performance. In a highly modified engine, this is a key factor to keep itall working without problem. I always respect the maintenance schedules, until now. From now on, I will reduce the maintenance schedules and do additional oil changes every 7500km. Yesterday the car did some some aditional inspection. After changing the pipes, the intercooler, the oil cooler, and other parts the oil should be changed because there should be some aditional dirt on it. So the fuel filter, the oil filter and the oil were changed. I also had to change the front wheel housing liners because they were broken. Also the oil cooler thermostat was mounted. Thermostats are designed to prevent engine oil from flowing through the oil cooler until the desired temperature is reached. Prolonged use of engines in conditions that oil cannot reach optimum working temperatures will cause sludge formation and crankcase oil dilution, leading to excessive wear especially in the cylinder bores. Thermostats combat this by regulating oil flow to accelerate warm up. This in turn reduces drag, helping to yield optimum engine efficiency and performance.

One of the things that you will found on racingtdi.com is a good set of TDI tuning and racing tdi resorces. If you go to TDI Resources you will have lots of compiled links that you can use to know more about tdi engines and the options to tune it. As I learned a lot and they were helpful to me, I want to asure that newbies on Turbo Direct Injection engines are able to easily find the more interesting resorces.

The front bumper is finally almost ready. Some few details are missing so I can consider it 100%. Here is a picture of it, with the intercooler and pipe detail.

Manifold design is a very low priority in a boosted engine, especially if there is going to be a $$$ increase in production. The SDI engine has tuned runners because without a turbo, it needs every extra advantage it can get from the intake. On a turbo engine, it’s cheaper for the manufacturer to just make the cheapest possible intake manifold and crank up the boost a wee bit to compensate for its deficiencies! VW didn’t pay much attention to this item in earlier TDIs. On some recent TDI like the 130PD the intake manifold has a better design. The Passat Manifold is the same design but the inlet pipe is facing other side. This Allard intake manifold is basically a Passat PD manifold with the Allard pipe attached to remove the EGR system. This intake allows for more flexible intercooler mounting/routing options, plus, pipes are shorter, therefore lag is reduced.
Plus the Allard pipe has a much better looks and it should improve the revving and some marginal power gains at high rpms.
Please take a look at the pictures in this link Racing TDI Engine Mods