Posted by RodInNS on January 30, 2008 at 08:26:30 from (24.224.246.156):
In Reply to: turbos and fuel posted by JD 4240 turbo on January 29, 2008 at 15:47:44:
Some things I've observed with a pyro....
1. The first pull of the day will always be hotter. I can't exactly explain it, but the first heat cycle until the engie is warm will run higher EGT's on my Ford. Once the engine is warm that first high peak will settle back a bit. A good reason to warm the engine up gently.
2. I've observed temp's as high as 1150 F in the pipe after the turbo. You're getting that before the turbo.... I figure a 250 degree drop across the turbo, so your numbers sound about normal to me. That 1150 you got is only 900 in the pipe, and I wouldn't worry a bit about that. I get concerned when I see a peak of 1150 in the pipe, and I don't like to pull her any harder on a steady basis then it takes to maintain 1000-1050 in the pipe. Much hotter than that and I usually smell hot aluminum...
3. More fuel will make more heat. Period. There's no way around that that I'm aware of.
4. More turbo might help IF it can make the air charge denser. An intercooler might be of more use....
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