The Daytona Project

[Jeff]

Pete, let me be clearer and less rushed. I was in a hurry when I made that last post. Basically, the EGT gauge is useless unless you know what temp to look for right? Until you blow a motor up yourself with the probe at that point there is no way to know what the max is. So if I put my probe in the downpipe 15in from the turbo I would have no idea what EGT to shoot for. In turbododges there is a standard point where the probe should be mounted. The one agreed upon variable is how far from the head, 1in. The question is which runner. The standard for years was the 4th runner (where mine is). It is typically the hottest. Now, for some reason, the #3 is considered the choice because it is the hottest according to many TD gurus who run 4 probes. There is no need to average them all, and actually it skews the reading and there is no way to compare it to the rest of the community in troubleshooting situations. The probe is fairly resistant and stands up well. If the probe were to fail, odds are your EGTs are too high for the pistons. Stock pistons melt down at 1550degrees (in #4, 1in from the head) The forged babies I got can take 1700ish. So, the gauge goes to 1600...as long as I don't pass that I should be ok

NEW PICS AND COOL SHIT!!!

Ported 2.5in swingvalve next to stocker 2.265in swingvalve

CLOSE UPS!!!




It does not look smooth, but it is. At least it is smoother then the cast iron was anyway. I ground out the huge ridge that restricts airflow, basically turning it into a turbonetics type piece.

NEW SHIT!!! 3in cat came in!







Now for a question. My PLX M-300 says it can only take 850 Degrees C. Now that is 1560 or something in F. So, my stock O2 sensor is in the swingvalve. They say it should be at least 24in from the turbo as a "general rule." Does anyone have any opinion on if I should use the stock local or move it into the downpipe? I really want to use the stock place but I don't need to ruin the sensor.