Re: Re: K&N fipk

From: Chris (chris_blm@comcast.net)
Date: Sun Sep 19 2010 - 10:39:18 EDT


Gary, I was raised in Naperville, and my parents still live in the same
house. Great area.

-- 
Chris Reck
Bloomington, IL

>> '99 Dakota Sport + CC 4x4 V6 (Deep Amethyst) >> "It's not the meat, it's how you apply the rub"

superdak@gmail.com (Gary Hedlin) wrote in news:AANLkTin6f9ef-AdtmMDefxzWf1BTW4S1JHqyXmj0-xYZ@mail.gmail.com:

> > I live in Northern IL too, little bit south of Naperville, and I leave > my cold air intake on all winter long on my 05 4.7. Haven't had any > adverse affects for 5 years now. > > Gary > > On Sat, Sep 18, 2010 at 5:39 PM, MICHAEL CABE <mikecabe@prodigy.net> > wrote: >> >> ray, >> thanks for your post and jon your input.i have one more question.i >> live in northern illinois and it can be below 0 for a few days and in >> the 0 to teens the rest of the time.should i leave my k&n setup on in >> the winter or could the cold affect my truck in some way? now i got >> some reading to do . thanks again guys. mike >> >> --- On Sat, 9/18/10, Ray Block <BPracing@wowway.com> wrote: >> >>> From: Ray Block <BPracing@wowway.com> >>> Subject: RE: DML: Re: K&N fipk >>> To: dakota-truck@dakota-truck.net >>> Date: Saturday, September 18, 2010, 12:28 PM >>> >>> > -----Original Message----- >>> > From: MICHAEL CABE >>> > >>> > ray >>> > i will check out all those links. thank you.i guess my >>> thought is,even >>> > with modest mods (exhaust,air intake)are the factory >>> settings in the >>> > computer able to make the best of said mods without >>> some sort of >>> > reprogramming? >>> >>> The short answer is yes.   In part throttle >>> driving the PCM will read the O2 >>> sensor, Intake Air Temp (IAT) sensor, MAP sensor and the >>> Coolant Temp Sensor >>> (CTS) to determine the proper Air/Fuel ratio regardless of >>> any mods. >>> >>> During Wide Open Throttle (WOT) the PCM ignores the O2 >>> sensor and refers to >>> predetermined parameters (lookup table) to adjust the >>> timing and A/F ratio. >>> Typically, all factory computers (ECM or PCM, whatever you >>> want to call >>> them) are programmed to be extra rich at WOT to prevent we >>> idiots from >>> causing any engine damage.  For a racer this can be >>> detrimental to maximum >>> performance but there are external ways to >>> compensate.  A mostly street >>> vehicle wouldn't know the difference. >>> >>> > i haven't looked at your links yet so maybe after >>> doing so >>> > i will understand more about "speed density systems"my >>> next question is to >>> > the group.have any of you reprogrammed for fuel >>> economy or performance or >>> > both? i would like to stick to the 4.7  on this >>> subject but all >>> > experiences too.thanks again ray. >>> > mike >>> >>> I acquired a Superchips tuner several years ago for my Jeep >>> 4.7. (same one >>> is used for Dodge truck 4.7s)  I've tried the >>> "economy" and "performance" >>> modes. The fuel mileage difference is >>> negligible.   The performance mode >>> does show a slight performance improvement at the track but >>> it is not >>> significant enough to "feel" on the street. >>> >>> FWIW, when I race the Jeep without the tuner I use 87 >>> octane fuel.  Higher >>> octane didn't do anything for it.   If I use >>> the Superchips performance mode >>> I run 92 but can't confirm it really needs >>> it.   I've run just as good times >>> with 89 in most weather conditions. >>> >>> Hope this helps. >>> Ray >>> >>> >> >> >> > > >



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