RPM's While Towing
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Captain
Joined: Oct 2008
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From: Ohio
RPM's While Towing
I tow about 7k twice a month and was wondering were the rpm range should be. When I start out from a stop I get to the 4k rpm range in second gear until i get to my desired 65 mph on the freeway and then it shifts into third and i cruise along pretty well.
It goes up and down the mid 5-10% grades fine but occasionally there's the steeper 15% grade to which it kicks down to 2nd gear and runs 4k rpm's up the hill.
Is this a normal thing for the amount of weight I'm pulling with a 97 dodge 1500 5.2L 4x4 sport.
Based on the link below, the 4k rpm range is where my 5.2L engines power lies.
http://www.rm-indy.com/Towing%20Tips.htm
Sorry about the long post. Open to any opinions.
It goes up and down the mid 5-10% grades fine but occasionally there's the steeper 15% grade to which it kicks down to 2nd gear and runs 4k rpm's up the hill.
Is this a normal thing for the amount of weight I'm pulling with a 97 dodge 1500 5.2L 4x4 sport.
Based on the link below, the 4k rpm range is where my 5.2L engines power lies.
http://www.rm-indy.com/Towing%20Tips.htm
Sorry about the long post. Open to any opinions.
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Captain
Joined: Oct 2008
Posts: 526
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From: Ohio
Well I'll see what happens this trip. Last time the truck over heated so since then I added a set of electric fans from a ford and new fan clutch and pulled the T-stat. I should be fine for this trip.
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Captain
Joined: Oct 2008
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From: Ohio
To be honest I don't know. I've read here on the forum that 90-94 Ford Tarus had good reliable fans.
I went to a scrap yard with some knowledgeable people and told them what I wanted, "14'' dual electric fans" from any vehicle. He went to the pile he had and said here you go, they are from ford. I paid $30 for them and got a 30-day warranty as well.
I tested to make sure they work then installed them. They run from 2 switches.
I went to a scrap yard with some knowledgeable people and told them what I wanted, "14'' dual electric fans" from any vehicle. He went to the pile he had and said here you go, they are from ford. I paid $30 for them and got a 30-day warranty as well.
I tested to make sure they work then installed them. They run from 2 switches.
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Captain
Joined: Oct 2008
Posts: 526
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From: Ohio
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http://picasaweb.google.com/lh/photo...eat=directlink
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http://picasaweb.google.com/lh/photo...eat=directlink
Last edited by 97black_ram; May 26, 2009 at 10:43 AM. Reason: link didnt work
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Registered User
Joined: Mar 2009
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From: indiana
you should put the thermostat back in. it helps keep your truck cool. without it it will stay cool for a while but once it warms up there is no way to regulate it and it will keep getting hotter.
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Captain
Joined: Oct 2008
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From: Ohio
I was thinking the same thing i the back of my head but haven't had a chance to try and confirm this. Any other opinions on this thought.
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Joined: Jul 2006
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From: Gainesville, Ga.
^no, no, no...
t-stat keeps an engine at hot temp (180-195) by partially closing and restricting or blocking coolant flow.
no t-stat allows it to cool to its maximum potential.
i think 4k is a little high. that seems likes its one gear too low.
t-stat keeps an engine at hot temp (180-195) by partially closing and restricting or blocking coolant flow.
no t-stat allows it to cool to its maximum potential.
i think 4k is a little high. that seems likes its one gear too low.