What temps are normal? or too high - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 19 (permalink) Old 06-09-2009, 07:57 PM Thread Starter
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What temps are normal? or too high

I have a 96 f350 cc single axle 4x4 with 285-75-16 tires and 3.55 gears, plus I know this probably doesn't help but its got a banks chip (I know it needs to go), but until I can afford another it has to work!

This past weekend I was pulling my 20ft. enclosed trailer and was wondering the following:, (it may have been addressed but I couldn't find it anywhere)

What boost is too much?

What egt should I be concerned with as being to high?

What kind of mileage should I expect?


I was hitting about 10#'s of boost on the good hills, about 900 to 1100 egt's, and averaging about 10mpg. This is pulling a 20ft. enclosed trailers with 2 quads in it? How do these numbers sound or compare, and at what temps and boost should I be concerned that they are getting too high?
would a custom tune do anything for the mileage? it towed great on the flats and slight hills, but there are a couple ( and around here they arent' that steep) it seemed to struggle a bit, dropping to 50mph from 65 that I was running.

thanks for your input in advance.

Chris
Oklahoma

Chris

Moore, Oklahoma



1996 Ford F350 4x4 Crew Cab PSD
6637 tymar
285-75-16 BFG All Terrains/Weld Wheels
3:55 gears
Automatic with billet convertor, tugger and alto discs
New Gearhead Tunes:
1 heavy tow
2 stealth mode
3 tow/econ
4 street perf
5 all out
6 high idle
1.0 housing
exhaust
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post #2 of 19 (permalink) Old 06-09-2009, 09:35 PM
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Re: What temps are normal? or too high

wheres your pyro located?
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post #3 of 19 (permalink) Old 06-10-2009, 05:16 AM Thread Starter
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Re: What temps are normal? or too high

after the turbo

Chris

Moore, Oklahoma



1996 Ford F350 4x4 Crew Cab PSD
6637 tymar
285-75-16 BFG All Terrains/Weld Wheels
3:55 gears
Automatic with billet convertor, tugger and alto discs
New Gearhead Tunes:
1 heavy tow
2 stealth mode
3 tow/econ
4 street perf
5 all out
6 high idle
1.0 housing
exhaust
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post #4 of 19 (permalink) Old 06-10-2009, 06:18 AM
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Re: What temps are normal? or too high

If your pyro is located after the turbo you are running WAAAAAAY too hott. I believe the general rule of tumb is to add 300*F to a post turbo reading to give you an idea of whats going on in the manifolds. That would put you at about 1400F You should never break 1250F, but the lower the better.

Make sure you have no exhausts leaks as that will cause low boost and give you higher egts. Ditch that chip and get one from a sponsor with a Tow setting, Ill bet that would help. Later you might want to consider adding an IC.

Best of luck,
-Matt

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post #5 of 19 (permalink) Old 06-10-2009, 06:48 AM
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Re: What temps are normal? or too high

Your boost is probly a little low, if you get on it pretty good on a hill it should be getting more boost than 10. Check your boots on your intake manifold to the turbo Y pipe. EGT's are probly normal to get real numbers tap your pyro in to the exhaust manifold. Add a intercooler to cool it off a bit. Try running it without the banks chip, and see what happens.

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post #6 of 19 (permalink) Old 06-10-2009, 08:02 AM
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Re: What temps are normal? or too high

Quote:
Originally Posted by psdmike View Post
Your boost is probly a little low, if you get on it pretty good on a hill it should be getting more boost than 10. Check your boots on your intake manifold to the turbo Y pipe. EGT's are probly normal to get real numbers tap your pyro in to the exhaust manifold. Add a intercooler to cool it off a bit. Try running it without the banks chip, and see what happens.

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post #7 of 19 (permalink) Old 06-10-2009, 05:18 PM
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Re: What temps are normal? or too high

That's too hot.

Might be a good idea to (a) move the pyro pre turbo and (b) check for up pipe leaks.

Jarrett Matthew

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post #8 of 19 (permalink) Old 06-10-2009, 06:56 PM
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Re: What temps are normal? or too high

Personally, I've run that hot before as well, but not for a long period with all remaining fine. My pyro is sensor is right after the exhaust manifold (up-pipe) so I'm getting a truer reading. Is this with stock injectors? Usually stock injectors will keep you within the safe zone, but not always.
I already have an IC, and I can still get extreme temps if not watching my Pyrometer, so it truly is an essential part of owning a Diesel IMHO.
With the load you are pulling, the speed sounds about right, especially with your gears.
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post #9 of 19 (permalink) Old 06-11-2009, 01:39 AM Thread Starter
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Re: What temps are normal? or too high

yeah it has stock injectors,

i will recheck the location of the egt,

I am sure it would have pushed more boost, but not knowing where I needed to be I wanted to be sure I was safe.

will a custom tune chip give me more mileage in general and towing, and if so what should I expect to see in gain?

thanks again for the help guys, its much appreciated.

Chris

Moore, Oklahoma



1996 Ford F350 4x4 Crew Cab PSD
6637 tymar
285-75-16 BFG All Terrains/Weld Wheels
3:55 gears
Automatic with billet convertor, tugger and alto discs
New Gearhead Tunes:
1 heavy tow
2 stealth mode
3 tow/econ
4 street perf
5 all out
6 high idle
1.0 housing
exhaust
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post #10 of 19 (permalink) Old 06-12-2009, 03:45 PM
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Re: What temps are normal? or too high

what mods do you have ? still have stock exhaust and air filter??
get custom chip burned with what ever mods you have the one i have moved the shift points so i dont have to mess with the button in town and loaded the bottom of the power band But I have a few mods but it tows my GN great loded with horses and camping gear.
I see 7-800 on the flates on the hills passing up to 1200 once and a while.
(pre turbo just past the manifold)

Blue 2012 XLT SCLB 4X4 , 38,550 miles, 3:55's & 18's Camper and Tow packages. Edge insight, Airlift Wireless compressor & Air Bag set-up, Dieslesite filter.
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