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Old 09-11-2011, 04:40 PM
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Default KEM tunes

How long does it usually take your trans to shift good after switching to KEM tunes? I went from the canned H&S tunes that come with the Mini Max,(Which ran very nice in my truck), to the KEM 310. My truck didn't shift good at all. Should I just give it time to re-learn?
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Old 09-11-2011, 05:53 PM
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Just give it time but my 310 always shifts hard my 345 after a day of driving is awsome.
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2009 f250 mcc tuned by Matt@ gear head ,72mm elite atmo,5in exhaust,rcd ported intake,rcd pushrods and valve springs,cobbled up cold air. Arp studs.
Stock trans still holdin on.
Best e/t 12.26@109 7.74 in 1/8 1.6460'
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Old 09-11-2011, 06:04 PM
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Did you do a tranny learn?
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Old 09-11-2011, 06:17 PM
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I did a re-learn, but not what I'd call a good one. I'll try it again tomorrow. Is the 345 safe on a stock trans and headbolts?
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Old 09-11-2011, 06:30 PM
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I run 310 all day, 345 is a lot better on the trans. I would change to 345 but I feel like swapping tunes gives you a chance for some trans relearn flare. But I know that is probably not the case.

For the head bolts, I would just drive smart on it. It feels like it has a lot safer pull when cursing on the highway and stomping it 65-70+. I never get flare and rpms are in check since tc locked. Your more susceptible to screwing something up at lower speeds. Just check egts.
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Old 09-11-2011, 06:37 PM
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I run the 345 it seems to take 100-150 miles to really start shifting good.
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Old 09-11-2011, 06:59 PM
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345 DD. 310 shifts to hard for me.
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Old 09-11-2011, 07:37 PM
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What does everyone think pulls harder the 310 or 345?
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2009 f250 mcc tuned by Matt@ gear head ,72mm elite atmo,5in exhaust,rcd ported intake,rcd pushrods and valve springs,cobbled up cold air. Arp studs.
Stock trans still holdin on.
Best e/t 12.26@109 7.74 in 1/8 1.6460'
http://www.unlimiteddiesel.com/
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Old 09-11-2011, 07:41 PM
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anyone get a p0003 code when flooring it on 310 tune?
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Old 09-11-2011, 07:42 PM
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Quote:
Originally Posted by pog View Post
anyone get a p0003 code when flooring it on 310 tune?
Yes.
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2009 f250 mcc tuned by Matt@ gear head ,72mm elite atmo,5in exhaust,rcd ported intake,rcd pushrods and valve springs,cobbled up cold air. Arp studs.
Stock trans still holdin on.
Best e/t 12.26@109 7.74 in 1/8 1.6460'
http://www.unlimiteddiesel.com/
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