| Message |
Let's start with the idea that you have to know something about how the engineers designed the engine. They matched components together to create a US spec 300 HP engine. In doing so, they used intakes, throttle bodies, injectors and turbos that are capable of making this HP reliably, safely and for a long time. The components have additional capabilities. When you ask how much power you can make with stock turbos, then you have to consider how much pressure they're capable of delivering. Stock boost levels are set at 9 lbs. As you will find out by doing some of those SEARCHes others mention, a common boost trick can take the levels up to 13-14 lbs reliably and safely. Above 15 lbs, the turbos lose thermal efficiency and their effective boost levels drop. The other factors in combustion are air and fuel. The stock air box is not very efficient, and replacing it with an aftermarket intake will give a TT somewhere between 10 and 15 HP under most circumstances just by improving inbound air. Fuelwise: the stock TT injectors are at 85% duty cycle in stock setup with stock boost. When you increase the boost, you need to reprogram your ECU to give you the 15% fuel flow remaining capability. The bottom line is that you're limited
|
 |
09:29:49 10/07/03
