EGT's while racing - Diesel Truck Forum -
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post #1 of 5 (permalink) Old 05-12-2009, 07:33 AM Thread Starter
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EGT's while racing

Hey guys, I am a long time reader first time poster, so you might have to bear with me. My truck can get rather toasty with the egt's when i race. I do not use it to pull. But when i race and put the box on 5X5 i can see my pyro maxed out at 1500* by 60 mph. I know this is HOT, but i was wondering if i should be concerned considering i only have it there while going through the quarter. I assume it hits 1700 or so??? (going to get bigger pyro gauge) And I assume i have the 53 block and would hate to crack it or melt a piston. Do yall think it can withstand this for just one or two weekend runs?? Any body experiecne something similar? thanx
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post #2 of 5 (permalink) Old 05-12-2009, 01:04 PM
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I don't know personally but a lot of guys will run burst of 14/1500 just not for very long. As for 1700, don't know.

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post #3 of 5 (permalink) Old 05-12-2009, 02:36 PM
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1,250*F is typical MAX.

I touched 1,300-1,400*F for a few short trips. But If your aiming to get your Pyro down them your going to need more boost pressure and a bigger turbo. Getting a bigger gauge is NOT SUGGESTED! You just inviting the chance of damaging or blowing your engine...
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post #4 of 5 (permalink) Old 05-12-2009, 05:07 PM
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I used to be able to hit 1800* at altitude with my truck. Running 1500 for a short period is alright, because there are a lot of things that keep your pistons from getting that hot and subsequently melting. Where a lot of people have issues is making multiple passes without letting it cool down first. Once the pistons start absorbing heat, your window of time that you can hold it at 1500 goes even further down. Often times this isn't too bad when drag racing because you have to wait long enough to make another pass that your pistons do cool back down. Guys often melt on dynos because they make a lot of pulls without giving it time to cool back down.

So play it safe and let the truck cool down for a while before running it up that high again and you shouldn't have any issues with it.

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post #5 of 5 (permalink) Old 05-12-2009, 05:48 PM Thread Starter
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Thanks for the info so far guys. Very interesting. I will be sure and let it cool down good before making another pass. I just wished my II sps 62 turbo could cool things down better. It used to only hit 1350 but then i got the 125 horse injectors too and things got a little different. It makes 50# boost but still sees these temps fast. I just wished i knew what it was maxing out at.
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