You know I was wondering how that Article was coming.... 640hp out of a C
motor.... Geez I bet there are a BUNCH of folks a Bonneville that would love
to have that kinda HP..... I know it's 125+hp down on a Drysump motor but
it's still a bunch more then lots of folks have.
Looking forward to reading about it Bob.... Very cool.
Keith
----- Original Message -----
From: "rgribble" <rgribble@carolina.rr.com>
To: <saltracer@shaw.ca>
Cc: <land-speed@autox.team.net>
Sent: Wednesday, January 30, 2002 12:57 AM
Subject: Re: (tech)sbc overbalance opinion
> Bob & List,
> Overbalancing is somewhat a common practice with NASCAR engine builders,
but
> only for some specific reasons. It is usually done only for engines that
are
> expected to rev above 8,000 RPM . Above 8000 RPM valve train and other
> engine components tend to develop harmonics which is dampened by the
> overbalancing. This actually does nothing to increase HP, only reduce the
> harmonics and to it's detriment, overbalancing does increase engine
> vibration at lower RPM ranges. Therefore, if you do not expect to run
these
> RPM ranges, it probably is not a good idea and surely a waste of money. My
> T'Bird is slightly overbalanced but I've turned it at 9500 RPM many times
> (it likes it)
>
> BTW, I have completed the new build of the "NASCAR Street Engine" for Hot
> Rod Magazine. The article is expected to come out sometime within the next
> few months. It is a SB2 motor as is run by the Winston Cup teams but with
a
> street cam, 10:1 compression and a wet sump oil system. It dyno'd at 640
HP,
> will run on pump gas and take a family of four from New York to Disneyland
> in 8 Hours flat. I'll have it on display at the Motor Show in Daytona next
> month. I'll post some pix next month.
> Next on the agenda is to convert the fuel system to DFI with a Wilson
> Manifold system and put it in a show car I've had in storage. (an 84 Iroc
> Camaro that's just a bute)
>
>
> ----- Original Message -----
> > From: "Bob Bridge" <saltracer@shaw.ca>
> > To: <land-speed@autox.team.net>
> > Sent: Monday, January 28, 2002 6:04 PM
> > Subject: (tech)sbc overbalance opinion
> >
> >
> > > Hi All
> > >
> > > Was wondering on your opinions on overbalancing sbc's to 51% or 52%
for
> > high rpm (7500-8000)
> > >
> > > Bob from Canada
>
> /// .
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