gary,
thanks,i guess it stays on.
mike
--- On Sat, 9/18/10, Gary Hedlin <superdak@gmail.com> wrote:
> From: Gary Hedlin <superdak@gmail.com>
> Subject: Re: DML: Re: K&N fipk
> To: dakota-truck@dakota-truck.net
> Date: Saturday, September 18, 2010, 7:25 PM
>
> 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
> >>
> >>
> >
> >
> >
>
>
>
> --
> Gary Hedlin
> Show Car Signs by Hedlin Designs
> www.showcarsign.com
>
> --Many talk about those who died, but too few talk about
> those who
> survived... THANK A VET!
>
>
This archive was generated by hypermail 2b29 : Mon Nov 01 2010 - 10:47:31 EDT