ill take one of those 4.7 throttle bodies. sign me up. how big will it be
68mm or 70mm?
arnold
----- Original Message -----
From: <RDPerform@aol.com>
To: <dakota-truck@buffnet.net>
Sent: Wednesday, February 28, 2001 11:58 AM
Subject: DML: R&D Performance Throttle Bodies
> Hello,
>
> Was just poking through the archives and noticed that my previous
> "competition" had alot of bad mouthing as to the quality of my ported
> throttle bodies. What I'm asking you folks is, how is your TB holding up?
>
> One person mentioned that the TBs butterflies were loose - this was only
on
> the first run of TBs as they were only welded on the one side which
allowed
> the blades to wiggle very slightly. A small tack weld on the front of the
> blade fixed this. (Note: This cannot be done on a TB with brass blades -
> period. No matter how good the welder is) Our TB is the only one with the
> flathead screws sunk into the bores to my knowledge. This may have
changed.
> Another thing no one seems to mention is how our blades are angle cut to
> match the bore .... just another small step we take to insure the
precision
> assembly of these units. Nothing is just stamped out.
>
> Another thing mentioned by our "competition" is that our precision
stainless
> shafts were warped from the heat of the welding. Well - upon disassembly
of
> our TB we tested the welds on (had about 3 or 4 different welding points
as
> opposed to 2) we spun the shaft on a dial indicator ....... nothing was
out
> of tolerance one bit.
>
> I'm also curious as to how well these "fixed" throttle bodies performed
with
> the larger bore. When we tested the 52mm bore over the 50mm, performance
was
> ultimately lost even though the off-idle gains made it feel like the truck
> was actually faster. We did this on my Supercharged truck, stock trucks,
> warmed up NA trucks (cams, etc), all with the same results.
>
> I still to this day (especially after selling all my surplus parts off
cheap)
> get requests to start making the TBs again, as people are very satisfied
with
> them. I plan on doing so (plus a 4.7L TB that'll be an absolute jewel)
with
> all options available, just curious as to what you guys though worked, as,
> it's no big deal to do any extra machining once the TB is in the mill.
>
> FWIW - New price will probably be around $250 - no core. How's that sound?
>
>
> Speak up :)
>
>
> ttyl
> Patrick
>
>
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