63MM to 66MM. Smooth out the bore and replace the valve unit. Some who
purchased it can feel the difference with the BUTTDYNO.
-------------------------------------------
Steven St.Laurent
Test Engineer
Test Branch, GSD, MCTSSA
MARCORSYSCOM, USMC
760-725-2506 (DSN 365-2506)
Work:mailto:stlaurents@mctssa.usmc.mil
Home:mailto:saint1958@home.com
-----Original Message-----
From: Marty Galyean [mailto:mgalyean@acm.org]
Sent: Monday, October 02, 2000 8:32 AM
To: dakota-truck@buffnet.net
Subject: Re: DML: 4.7L Throttle Body-Re: Steven Ekstrand
Heres some questions.
Does Tony bore out any? or just clean up, radius etc. If he bores, to what
diameter? Any flow/hp figures for the 4.7 quickd yet?
Regards,
Marty
"Barret, Matt" wrote:
> Yep, thats the thing to keep in mind here, My primary goal is 1/4 mile
> racing, and everyone may have different goals, towing, or maybe just a
> little perf. increase, or maybe a fuel mileage increase. My custom PCM
will
> be very close to the Mopar PCM, only difference is I'm going a little more
> on the timing advance, other than that its a Mopar PCM for all practical
> purposes.
>
> The TB is about 63 mm, about the most you could "hope" to bore it would be
> around 66 mm, there just isn't any room to play. If a new casting was
> produced in the aftermarket, around 75mm, it may be worth looking into, or
> retro fitting a TB from another vehicle.
>
> Matt
>
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