250 vs 275 - Ford Powerstroke Diesel Forum
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Old 06-15-2010, 08:13 AM
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250 vs 275

im looking to get 275 spartan tune. How is trans holding up and how does eveeryone like it compared to 250? Mileage?
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Old 06-15-2010, 08:42 AM
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275 shifts better, TC locks up alot quicker at 45MPH and the fuel milage is better.
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Old 06-15-2010, 11:57 AM
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IMO, the 275 shifts hard compared to the 250. But, it is my favorite tune. In my truck, the 275 does much better on fuel.

I've been running the 275 daily for well over a year. No issues yet. I love it.
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Old 06-15-2010, 04:48 PM
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is spartan tcm recommended or not needed? also how much better is the 275 vs 250 on fuel mileage?

Thanks
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Old 06-15-2010, 05:17 PM
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it could help and i have one for sale for 250 if you want pm me
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Old 06-16-2010, 05:52 AM
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Quote:
Originally Posted by Darektylka View Post
is spartan tcm recommended or not needed? also how much better is the 275 vs 250 on fuel mileage?

Thanks
I never bought the Spartan TCM for mine. Never felt the need. According to the last tank I ran with the 250 tune. It was about 1.5 MPG less than what I normally see with my 275. Mostly in town driving. Red light to red light.
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Old 06-16-2010, 06:54 AM
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Quote:
Originally Posted by Darektylka View Post
is spartan tcm recommended or not needed? also how much better is the 275 vs 250 on fuel mileage?

Thanks
I just want to say that if you dog your truck like crazy, and beat on it hard, you run the risk of blowing your HG's on the 275 tune. Especially since yours is a Job 1 (is it a Job 1?), and it seems many HG failures on 6.4's are on Job 1 trucks.
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Old 06-16-2010, 09:08 AM
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275 will shift really hard at first, but settles down in time. I use it for my daily driver, it has plenty of power and the shifts are now quick and firm without being too harsh.
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Old 06-16-2010, 10:48 AM
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The TCM is not needed for the 275 tune. It is only recommended for those with a Job 1 TCM that plan on daily driving with the 310 tune, along with using it for competition use.
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Old 06-16-2010, 11:05 AM
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How can we tell what job we have? I think mine may be borderline between 1&2.
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