whats the safe points - Ford Powerstroke Diesel Forum
 
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post #1 of 10 Old 02-14-2008, 08:55 AM Thread Starter
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whats the safe points

any one know the safe points in boost and egt? stock turbo im runnin bout 24 on all my tunes and bout 27 on extreme but i dont use that one after i seen that and my egt gets up to bout 1200 right around the 1/4 mile mark from stop

earyly 99 7.3 F250 extended cab afe stage 2
intake with progaurd 7 filter isspro gauges boost,
pryo, and trans on the apiller 4'' downpipe into 5''
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post #2 of 10 Old 02-14-2008, 09:00 AM
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24 boost isnt un commin, i back out when my egts get to 900. I think 1200 is somewhat high

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post #3 of 10 Old 02-14-2008, 09:05 AM
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I think the general opinion is that 1200* is ok for a very short time. Boost I'm not sure about, I think it depends on your supporting mods. I don't like goin over 28/30 psi.

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post #4 of 10 Old 02-14-2008, 11:49 AM
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the egt temp depends on where your probe is. Post-turbo is cooler than pre-turbo. i wanna say about 200*. either way 1250* is high enough for long periods of time. short bursts will not hurt it.

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post #5 of 10 Old 02-14-2008, 11:50 AM
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Ive been told stuff starts melting at 1500*, and my previous truck ran over 900* quite a bit depending on how i drove it, and i never worried or had a problem with it
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post #6 of 10 Old 02-14-2008, 12:03 PM
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1250* all day long is not a problem as long as the probe is in the up pipe or manifold. High performance trucks will see 1600*-1800* on the race track and/or while sled pulling.

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post #7 of 10 Old 02-14-2008, 12:20 PM
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how much diff in temp reading from having it in the up pipe or the manifold compared to the down pipe? 100 degrees?

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post #8 of 10 Old 02-14-2008, 12:36 PM
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Quote:
Originally Posted by Farmboy444 View Post
how much diff in temp reading from having it in the up pipe or the manifold compared to the down pipe? 100 degrees?
300* on average and Banks says 300* as well.



As it was explained to me, the rule is like this:

+200* if under 10psi of boost
+300* if between 10-20psi of boost
+400* if between 20-30psi of boost


My own testing has shown a very sporadic difference in the two depending on load and outside air temp but it is very close to the list above.

Early 99 (Born on 11-20-98) F350 CC LWB 4X4
north of 480hp and south of 13.7sec
Bored with current setup

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post #9 of 10 Old 02-14-2008, 04:24 PM Thread Starter
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my prob is before the turbo on the up pipe!

earyly 99 7.3 F250 extended cab afe stage 2
intake with progaurd 7 filter isspro gauges boost,
pryo, and trans on the apiller 4'' downpipe into 5''
miter cut stacks no cat or muffler foil delete
wildman 6 tune chip new mastercraft c/t tires factory size and baby carseat




KEEP STORKIN
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post #10 of 10 Old 02-14-2008, 05:43 PM
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Quote:
Originally Posted by cornish2101 View Post
my prob is before the turbo on the up pipe!
That is where it belongs or in the manifold.

1250* is your red line. It can stay there all day long and it will not hurt anything.


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Early 99 (Born on 11-20-98) F350 CC LWB 4X4
north of 480hp and south of 13.7sec
Bored with current setup

Sled Pull and Drag Racing Videos

<><
Family of 5 saved by Grace.....

Sponsored by Left Coast Diesel in Concord, Ca

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