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Old 04-22-2013, 10:10 AM
95ram 95ram is offline
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Default 12V EGT questions

I'm wondering what you're guys EGT's are like with your 12V's. It's been I while since I've had a modded one and I haven't really towed anything heavy with this one since I did the mods. This weekend I was pulling my two place enclosed snowmobile trailer with my fourwheelers in it. The trailer is fairly tall. It's an 8.5' wide 14' deck plus 4' V-nose deckover with 6' ceiling. It's also very heavy. It's the only one I came across that's rated at 7000lbs.

So now that you have an idea of what the trailer is, here are my concerns. In OD at 60 MPH, my RPM's are at 1500 because of the 35" tires. My EGT's are 950-1000 on flat ground and didn't go over 1100 going up hills. Boost is 6-8 pounds. I know this is well within the safe zone, but it's also only 40* outside. The EGT's are only going to get worse as the outside temp goes up. If I'm in Drive at 60 MPH, my RPM's are about 2100, EGT's are 750-800 and boost is 8-12 pounds.

At 70mph in OD, my RPM's are about 2000, EGT's are 1000-1050 and didn't get over 1150 pulling a hill. Boost was 12-15 on the flats and would hit around 25 on the hills.

I guess I'm just worried about my OD EGT's. I think I've pulled as much low end fuel as I can. I'm going to try a couple of stiffer AFC springs to see if that helps. I know 35" tires and 3.5 gears are killing me. I'm sure the bumper doesn't help either. What are your guys thoughts?
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Old 04-22-2013, 10:25 AM
95ram 95ram is offline
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Here's a pic
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File Type: jpg IMAG0821.jpg (94.4 KB, 10 views)
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Old 04-22-2013, 10:53 AM
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stodg73 stodg73 is offline
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First off, where is your EGT sensor, before the turbo or after. If after, it is about 300* hotter, but yours is around 1150*, so you are good. If you see temps above 1250*, you are possibly melting pistons, as aluminum melts at about that temp.

For the temps that you are seeing, those seem normal to me. Yes, the 35's are not helping any, as these trucks are in the sweet spot between 1800-2200 RPM. The outside air temperature really does not affect these truck as much as you think, because of the intercooler on them, reducing the air temp from the turbo. Remember, the turbo(compressing the air) heats the air up tremendously, and the intercooler cools it down quickly.

Also, what mods did you make?

Hope this helps.
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Old 04-23-2013, 06:35 AM
95ram 95ram is offline
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The probe is pre, I'd never do post. The reason I'm concerned is while this trailer is heavy for a snowmobile trailer, it's isn't all that heavy. I know there is a lot of wind resistance. Guess I'm must looking to see what others experience is towing something similar. I'm worried that when I hook up to something that is heavy for me (8-10K) it's going to be a nightmare. Guess I'm to used to my 24V, just turn everything down and go, but it took to long to find this one and I'm not giving it up.
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Old 04-23-2013, 03:13 PM
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There is nothing wrong with your EGTs. The biggest factor with towing is wind resistance not weight. I bet you would be fine with any trailer behind you.
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Old 04-25-2013, 09:52 AM
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Mostly tires causing your EGT's.

I'm bigger and still have much cooler EGT's at 55 MPH roughly 800*F also I typically get about 13-14 MPG dragging it around. In the pic is my 235/85 R16 tires.


No troubles pulling 6-7% grade typically and even...
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Last edited by Mopar1973Man; 04-25-2013 at 09:55 AM.
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Old 04-26-2013, 03:32 PM
95ram 95ram is offline
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I didn't really thing there was anything wrong per say, they just seem a little high. It's been I while since I've had a modded pickup with 35's. I've either modded them with stockish tires or bigger tires with small mods. Last time I had a pickup that was close to this is was a 6 speed. Maybe I need to quit going through them so fast . This one makes number 13. Hopefully it's lucky #13 because I'll have this one for a while.
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Old 04-29-2013, 05:33 AM
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Dumb question, but have you checked your air filter? That could make the EGTs run a little higher than normal....
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Old 05-01-2013, 09:18 AM
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You'll be surprised. Take you truck to a dyno event and run both sized tires say 235's and 305's you find that typically the 235's will put more HP/TQ to the ground than the 305's would. So that means that TQ and stress is captured up in the driveline. Might be why you are killing so many trucks.

I'm still on my first diesel truck...
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1996 Dodge Ram 1500, 5.9L Magnum V8 Gasoline Engine, 46RE Automatic Transmission, 4WD with CAD axle with 3.55 Gears, Mopar Performance PCM, Gutted Kitty, ScanGauge II, 35% Tinted Windows, 16-17 MPG


Last edited by stodg73; 05-02-2013 at 07:21 AM.
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  #10  
Old 05-01-2013, 09:47 PM
95ram 95ram is offline
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I know what the dyno differance is between tires. And I'm not killing my trucks, I get bored with them and someone is always willing to give me what I have into them so I sell them and move on to something else. I have pickup ADHD.

Last edited by stodg73; 05-02-2013 at 07:19 AM.
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