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I feel it HOT HOT HOT!
I've been having a few minor issues with thermal management. 
It was fairly sunny and warm (mid 20s) out today, and I had the misfortune of having to deliver in my Probe for a change. For those who don't know, Kamloops is composed of hills, hills, and more hills. Anyway, the temperature gauge has been creeping above the "Normal" text occasionally when I'm moving slow, so I'm going to put some water wetter and a colder thermostat in there ASAP. I'm going to try taking out the weather stripping today because I'm too cheap to put proper hood vents in right now.
But here's the cool part.
After a particularly hard burn up the hill, I pulled over and popped the hood just to make sure everything was fine to be greeted by a warm glow from my engine bay. Looking down I notice it is coming from the front heat shield and the pipe proceeding down from it. I looked under the car and the pipe was glowing a nice bright orange right up to the point where it joins the other header pipe. It stayed hot for quite a while too, but once it had cooled off I checked a number of times that night and didn't find any more glowing (except for the drive immediately after, also a hard burn up the hill).
The question is, should I be concerned? I was watching my EGTs the whole night, and on the run in question my EGTs never went over ~1350 degrees. As I understand it, anything up to ~1500 is normal. The EGT is tapped right off the front pipe, 2 inches down from the header... an area that was glowing nicely. I was unable to verify if the rear bank was running that hot as well. No pinging, no knocking, normal drivability. Air fuel ratio gauge didn't act any differently than it normally does, still goes nice and rich on WOT. Fuel pressure at 4 psi is 70 psi. FMU signal is tapped off the compressor outlet, so it sees more boost than the engine ever does. Most of the time, I'm only getting ~2 psi, due to some hardcore wastegate creepage. My ignition timing is retarded 7 degrees at the moment IIRC.
My theory is that the retarded timing is resulting in higher than normal EGTs at times (I crept above 1500 a few times on the highway a few weeks ago) because the exhaust is still burning when it exits the chamber.
I'm driving to Vancouver this afternoon... does anybody think this is reason enough to take a different car?
It was fairly sunny and warm (mid 20s) out today, and I had the misfortune of having to deliver in my Probe for a change. For those who don't know, Kamloops is composed of hills, hills, and more hills. Anyway, the temperature gauge has been creeping above the "Normal" text occasionally when I'm moving slow, so I'm going to put some water wetter and a colder thermostat in there ASAP. I'm going to try taking out the weather stripping today because I'm too cheap to put proper hood vents in right now.
But here's the cool part.
After a particularly hard burn up the hill, I pulled over and popped the hood just to make sure everything was fine to be greeted by a warm glow from my engine bay. Looking down I notice it is coming from the front heat shield and the pipe proceeding down from it. I looked under the car and the pipe was glowing a nice bright orange right up to the point where it joins the other header pipe. It stayed hot for quite a while too, but once it had cooled off I checked a number of times that night and didn't find any more glowing (except for the drive immediately after, also a hard burn up the hill).
The question is, should I be concerned? I was watching my EGTs the whole night, and on the run in question my EGTs never went over ~1350 degrees. As I understand it, anything up to ~1500 is normal. The EGT is tapped right off the front pipe, 2 inches down from the header... an area that was glowing nicely. I was unable to verify if the rear bank was running that hot as well. No pinging, no knocking, normal drivability. Air fuel ratio gauge didn't act any differently than it normally does, still goes nice and rich on WOT. Fuel pressure at 4 psi is 70 psi. FMU signal is tapped off the compressor outlet, so it sees more boost than the engine ever does. Most of the time, I'm only getting ~2 psi, due to some hardcore wastegate creepage. My ignition timing is retarded 7 degrees at the moment IIRC.
My theory is that the retarded timing is resulting in higher than normal EGTs at times (I crept above 1500 a few times on the highway a few weeks ago) because the exhaust is still burning when it exits the chamber.
I'm driving to Vancouver this afternoon... does anybody think this is reason enough to take a different car?
I tapped my S-FMU vacuum/boost line on the wastegate actuator signal line. I now not only see higher fuel pressures on lower boost but ALSO I see the fuel pressure rising a lot of quicker than it used to. 
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