Performance DIY by DIY Guru

- Timing can affect performance. Know where your timing is set before making carb adjustments. A couple of degrees can make a big difference in acceleration characteristics. Properly setting timing may cure ills without getting into carbs. Gearing can also be a significant factor.  - Exhaust pipes/baffles MUST be clean. Clogged pipes can kill top end. - Excess carbon on pistons can cloud tuning issues. - Air leaks and/or bad crank seals can affect tuning. A leak down test is strongly recommended. - Low compression can't be compensated for with tuning. - Change in fuel grades or blends can make tuning requirements change. It is best to use premium fuel. - Before making any adjustments be sure the carbs and jets are clean. That means ALL jets... pilot, needle jet, and main, are removed and inspected/cleaned. Carb body passageways should be blown out with brake cleaner or soaked in carb cleaner for several hours and blown out with compressed air. T...

To calibrate the voltage on the TPS Sensor, a sensor on the throttle body that tells the ECU where the throttle is positioned. Over time the Tps goes out of calibration and your car's performance suffers greatly for it. I was VERY impressed with the difference this made to my car. It increased throttle response, smoothly revving across the whole rev range and makes for a far enjoyable car to drive. If your car is around the 8 year old mark, you should DEFINATELY do this if you want better performance from your car and offcoarse, who dosen't?! Again, I can't emphasize how effective this is, a must do! THE TPS IS OVERLOOKED OR SHOULD I SAY NOT UNDERSTOOD BUT THE TPS HOLDS GREAT BENEFITS WHEN CALIBRATED. This can be performed by yourself, without help, no problem. This is being done on a d16y4. Steps: Remove the Throttle body - 4 bolts 3 sensors that just unplug (TPS, Map and IACV) 2 coolant hoses on the bottom, unclip the metal clamp and pull the ho...

Nitrous Oxide I have to admit, I love Nitrous Oxide for use in dual purpose street cars. The reasons are simple:nitrous kits are cheap,it is easy to hide,and it is easy to tune and maintain. These reasons coupled with understanding how Nitrous works,and how to use it CORRECTLY make it a good performance booster. Nitrous adds power by adding extra oxygen in a compact form into an engine. Of course,to combust this extra oxygen you need a corresponding amount of extra fuel to accomplish this. Nitrous also cools down the intake charge,making it denser,thereby allowing more molecules per cylinder-making more power. There is no limit in how much liquid Nitrous Oxide you can get into a motor,but the motor itself can only take so much stress before it breaks something. Because nitrous increases cylinder pressure-a product of stuffing more oxygen into a cylinder,rods usually bend before anything else breaks. Running a Nitrous engine lean will cause "hot spots" on...