Wow...that's quite the gain. Thanks a lot for the info guys....Now I just gotta go salvage yard huntin'.
-Batman
--- "Bruce Bridges" <bbridges@flometrics.com>
> wrote:
>Stock 50mm flows 631 CFM @ 25"H20 more or less...
>Bruce
>----- Original Message -----
>From: Batman <batphreak@zombieweb.com>
>To: <dakota-truck@buffnet.net>
>Sent: Friday, March 16, 2001 11:07 AM
>Subject: Re: DML: Re: Boring Throttle bodies
>
>
>> I figured that if all I did was smooth everything out and still had the
>butterflys the same size it really wouldn't flow significantly more. If the
>bore size isn't changed then the flow is still restricted, I understand
>cleaning out the paths and letting it flow smoother. What do these things
>do stock on the flow bench? If it really increases it by just smoothing
>everything out that'd be cool.
>>
>> -Batman
>>
>> --- bernd@texas.net
>> > wrote:
>> >
>> >45 degree angle enough on the inlet of the bores Bruce? (Was having some
>fun
>> >with my V8 TB a few nights ago...still have metal flakes in my nose from
>that
>> >experience. ;) (Now I know why I don't miss porting stuff anymore!)
>hehehehe
>> >
>> >One word of caution on the shaft screws...be VERY careful when you remove
>> >them. A buddy of mine tried to remove them and wound up giving it to me
>> >to "fix". (I sent it to someone who has experience with
>> >fixing "oopsies"...Thank You Frank if you're reading this.) If you start
>> >turning the screws (after grinding off the ends) and they're really
>tight, do
>> >NOT force them out...be gentle with them. You will break the screws if
>you try
>> >to force them out.)
>> >
>> >- Bernd
>> >
>> >> Batman,
>> >> Keep the plates the stock size! Once you port your TB it will flow
>upwards
>> >> of 725-750cfm, which should be fine! Just dont get into the area
>around the
>> >> plates with your boring bar or your idle wont be in range anymore!(with
>the
>> >> stock plates)... remove the ridge or reduce it above the plates, add
>as
>> >> much radius as you can on the inlets and do all of this with the plates
>and
>> >> shaft removed! Youll need to grind the part of the screws that stick
>> >> through the shaft off since the threads have been "upset". Then you
>can
>> >> unscrew them and slip the plates out of the shaft. The shaft will then
>slip
>> >> out of the TB if it isnt burred up! I dont reccomend doing much with
>the
>> >> stock shaft unless you re-coat it. Its got an Ecoat on it that
>prevents
>> >> rust and "lubricates" the shaft in the center journal. You can loctite
>the
>> >> screws on re-assembly and remove the upset length to reduce their
>profile.
>> >> Bruce
>>
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