John-
You might want to ask Bruce whether his MAP restrictor-doohickie applies in
your case. I wonder about a 52mm bore, though, for a coupla reasons:
1. I think you might be up against a wall, there, with your stock casting.
I read something about there being a distinct lack of metal if you try and
open up the bores too much.
2. Even on the billet TB, where 52mm is definitely achievable without
thinning the walls, the F&B is 50mm. Velocity of the air column is part of
the equation, too. Open up the bores and you'll slow the air down. Unless
you're TB is a major bottleneck now, and your engine is starved for air to
the point where it could maintain current air velocity even if the bores
were bigger, I think that'd do more harm than good.
Bottom line, you need to talk to a few people with more TB experience than
me.
Grady Ogburn
'98 Sport CC 4x4
5.2l, 5 Speed
Mesa Headers & Cat
K&N FIPK, JET PCM
Gibson/MagnaFlow "FrankenPipe" Exhaust
Leer Topper
----- Original Message -----
From: "John Neff" <jndneff@texas.net>
To: "Dakota Mailing List" <dakota-truck@buffnet.net>
Sent: Sunday, November 19, 2000 2:33 PM
Subject: DML: Re: Dyno Pull
> Grady,
> It's a ported stock TB. Any idea if the work around might help a ported
> stock TB or should I really be looking at having my factory TB opened up
to
> 52mm?
>
> John
>
>
> >Is the F&B "Stage 1" the billet TB, or a ported stocker? If it is the
> >billet, then Bruce may have developed a workaround for your problem
(which
> >sounds exactly like the problem I had -- lost power, a rich condition,
and
> >getting pissed off at the dyno).
>
> >I'm awaiting arrival of the custom "gizmo" as we speak.
>
>
>
>
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