Throttle response with s&b intake - Ford Powerstroke Diesel Forum
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post #1 of 63 Old 05-14-2012, 06:32 PM Thread Starter
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Throttle response with s&b intake

A couple of days after having the 12b33 recall done on my truck I decided to replace my factory intake with a s&b. It seems that there is less throttle response from a stand still than with the factory intake. Has anyone else experienced this?

Once the truck is moving there is definitely better response with the s&b. I'm just a little puzzled about the response from a stand still.

Any comments would be much appreciative.

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post #2 of 63 Old 05-15-2012, 02:22 AM
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Take that god awful clear plastic cover off that S&B (If you haven't already) and I promise you that you will see a gain in your throttle response. I'm sure others will chime in, but a few months ago there were a hand full of us that had a good forum thread going and people were even seeing better fuel mileage with the plastic cover off. Just give it a try I bet you end up leaving it off like the rest of us did!

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post #3 of 63 Old 05-15-2012, 06:47 AM
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Mass air flow mapping is thrown off quite a bit once an aftermarket intake is on. Sometimes the truck will freak out and not respond as it should. A great suggestion above, definitely worth a try in our opinion.
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post #4 of 63 Old 05-15-2012, 06:48 AM
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What they said, ditch the cover.



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post #5 of 63 Old 05-15-2012, 04:37 PM
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what they said ^^^ i was one of the test "guinea pigs" who took off the plastic cover off a few months ago. I noticed, better throttle response, a tad bit better fuel mileage, and i can actually here my truck breathe now! i highly reccomend ditching the cover.



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post #6 of 63 Old 05-15-2012, 05:55 PM
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My cover has been off at the same Bryce took his off and no issues so far and I noticed better throttle response as well


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post #7 of 63 Old 05-16-2012, 05:55 PM Thread Starter
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took cover off

Wow! What a difference. Thanks for the recommendations. Significant difference in response.

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post #8 of 63 Old 05-16-2012, 06:49 PM
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I will try this also.... I will let y'all know the results.


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post #9 of 63 Old 05-17-2012, 10:00 AM
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Took my cover off last night, definitely an improvement. Throttle seems a lot smoother and MPGs seem to have gone up a little as well.
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post #10 of 63 Old 05-18-2012, 05:05 AM
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It absolutly helped, but the growl is quite a bit louder. oh well it is saving me more money on fuel so I think I can deal with it....

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