Terry,
We have dyno'd these on Rams (95, 98), Dakotas (97 & 98), both 318's and
360's. The gains are approx. 13 peak HP on the 318's and 18 peak HP on the
360's. But more important than peak HP is the torque and HP across the
powerband. Generally the increase in power (both HP and torque) has been 3-4
percent across the entire powerband. The bigger bore TB's loose HP and
torque, peak HP is down and the powerband gets rough. The tests have been
performed on a chassis dyno and on a DynoJet. The problem with the DynoJet
is that your pulls start at 3,000 and work up. Gear changes really present
problems. I like the chassis dyno's better, but they are harder on the
engines and it takes a good operator to get them right. Both types are good
for parts swap validations, but you can't compare a pull on one dyno to a
pull on another dyno. If runs are performed on different days, they need to
be adjusted to standard temp and pressure........
Frank
> -----Original Message-----
> From: Terry Herrin [SMTP:therrin@isaac.net]
> Sent: Thursday, October 28, 1999 9:05 PM
> To: dakota-truck@buffnet.net
> Subject: Re: DML: dyno tests and TB's
>
> "Doug Myers" <dougmyers@radix.net> wrote:
> > I've got a B&F Stage 1 right now, and the power gain was noticeable
> to
> >me. Has anyone dyno'd their truck with one of these? If so, was their a
> gain
> >or loss over the stock TB?
>
> Running a QuickD TB and intake, along with a 180 stat, my R/T dynoed
> 214 hp at the wheels. A stock R/T had run 196 hp a couple of weeks
> earlier on the same dyno.
>
> Terry Herrin
> 99 FR CC R/T
> Wilmington, NC
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