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Old 03-28-2014, 12:59 PM
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Re-Tuning a chip from DP?

Hi guys i bought a 2001 f250 with a DP chip that was tuned with a 4r100 transmission. The previous owner had an upgraded trans put in(hd4r100) but did not re-tune the chip. Do i have to re-tune the chip to the HD4r100 trans? Im also new to this site so cut me some slack if i get anything wrong.
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Old 03-28-2014, 01:04 PM
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How does the shifting feel to you. If it feels good, you will be fine.
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Old 03-28-2014, 01:25 PM
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Originally Posted by PSD POWER007 View Post
How does the shifting feel to you. If it feels good, you will be fine.
How do i know if the shifting is good? Will it be a nice firm shift?
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Old 03-28-2014, 03:31 PM
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I like A quick firm shift. Supposed to be better on the transmission that a soft slushy shift. With that said, it's personal preference.
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Old 03-28-2014, 03:36 PM
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Give Jody a call at DP, just to find out for sure, I have the same set up and runs just fine ,I'm sure everything is good.
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Old 03-28-2014, 04:35 PM
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Originally Posted by Googs View Post
Give Jody a call at DP, just to find out for sure, I have the same set up and runs just fine ,I'm sure everything is good.
How does the HD4r100 compare driving wise to the stock transmission?
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Old 03-28-2014, 05:05 PM
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Originally Posted by PSD POWER007 View Post
How does the HD4r100 compare driving wise to the stock transmission?
Personal truck (01 350) has 4r100, work truck (01 450) has the HD4r100. The 450 has a firmer shift for sure. I thought the 450's have a slightly different PCM program as far as shifting goes when equipped with an auto. I'm not to sure if the firmer shift is PCM or tranny related. Oh forgot that boss had a billet torque convertor put in when it was rebuilt so maybe that has a little to do with it. I definitely prefer the 450's shift over my 350's shift. Just my .02
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Old 03-28-2014, 10:15 PM
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Originally Posted by PSD POWER007 View Post
How does the HD4r100 compare driving wise to the stock transmission?
The 4R100HD is great, shift are firm (not hard) i also have a triple plate billet converter, and a custom made trans cooler (large) with twin thermo fans.I have a DP F6 tuner with 40hp,60hp,80hp tow codes, Towing wise it's great
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Old 03-29-2014, 07:27 AM
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I was curious how the 4r100 performs. If my stocker ever gives up the ghost, I'm interested in this one for the price. I don't beat my truck up at all. Just occasional spirited driving and towing 3 days a week. I don't wanna dump big $$$ into a tranny that I won't take FULL advantage of.
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Old 03-29-2014, 04:27 PM
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In my opinion there is no comparison the HD is the way to go if your towing or just giving your truck a hard time. I mean lots of hill climbs etc.My 4R100HD shifts are well spaced out and firm and trans temp are at 190F when towing.
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