Re: Installed true duals, lost horsepower????

From: Mark Kuzia (flyboy01@mediaone.net)
Date: Thu Jul 12 2001 - 08:31:49 EDT


I AM GOING TO MOVE THE SENSOR TODAY!

Mark Kuzia
flyboy01@mediaone.net
http://people.mw.mediaone.net/flyboy01/home.html
1995 Dakota 13.79 @ 102.45 mph
~360ci, 5-spd, 4.11 LS (8 3/4 [3.90 SG] coming soon)
1994 Dakota 15.36 @ 91.56 mph
~318ci, 5-spd, 3.90 LS (bone stock, no mods)

----- Original Message -----
From: "dwmagnum" <dwmagnum@interlynx.net>
To: <dakota-truck@buffnet.net>
Sent: Thursday, July 12, 2001 1:38 AM
Subject: Re: DML: Installed true duals, lost horsepower????

> MARK, when I sold my 95 318 the guy who bought it did what you did, 2
> 1/2" pipes, H pipe, sensor in the right side pipe before the H pipe. 1/4
> mile times went from 15.1s to 15.4s. NOT GOOD! On my 94 318 I used 92
> Magnum manifolds, 2 1/8" compared to 1 7/8", 2 1/4 pipes bent to form an
> X. The sensor was installed in the top off the X. 1/4 mile times went
> from 14.9s to consistent 14.5s with a best of 14.38. Good Luck! DW
>
> Mark Kuzia wrote:
> >
> > I need some help from those of you who have installed true duals in your
> > Dakota. I had a set installed today and lost horsepower? I was down 2-3
> > tenths and about 2 mph in the 1/4 from last week.
> >
> > Its a 2 1/2" system, with dual Flowmaster 40 series Deltaflow with an
H-pipe
> > and it dumps out in front of the right rear tire like the Lightnings do.
The
> > bends are not true mandrel bends, but they are smooth.
> >
> > I am wondering about the O2 sensor, It is installed in the right pipe,
> > before the H-pipe. Does this affect how it reads? Please let me know
what
> > you did if you have a set on you Dak.
> >
> > Thanks,
> > Mark Kuzia
> > flyboy01@mediaone.net
> > http://people.mw.mediaone.net/flyboy01/home.html
> > 1995 Dakota 13.79 @ 102.45 mph
> > ~360ci, 5-spd, 4.11 LS (8 3/4 [3.90 SG] coming soon)
> > 1994 Dakota 15.36 @ 91.56 mph
> > ~318ci, 5-spd, 3.90 LS (bone stock, no mods)



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