I have access to a 4.5 liter 302 style crank new...180
degree.. It was for use just before they started the
restrictor deal in the WSC cars. personally I am a big fan
of the Ti rods for strength and light weight but they are so
rigid they can be tough on the walls and they have their own
learning curve too .. i will be there playing with something
I am sure! I tune both blown and N/A engines and both have
their merits, and their own little tricks they play.
Dave Dahlgren
Rick Byrnes wrote:
>
> Dave Dahlgren asks
> > How hard did you turn it??
>
> Since this new motor is 100mm bore and 95 mm stroke (almost 4" X 3.75" I
> chose to limit it to 8500. The failure I had, was the first year of this
> N/A configuration, and I did not have a dry sump. A large belt driven
> single stage pump, but I essentially ran out of oil. (or aireated all 8
> quarts that were in the pan. This system worked perfectly at 7000 on the
> turbo engine but...........lessons learned. The midget version of this
> engine regularly turns 10400 in qualifying (with exactly the same head and
> valvetrain). With a 1/2" shorter stroke though.
> Titanium rods and a fully balanced billet crank help, and certainly keep
> the rod bearing loads within an acceptable level, but I'm still learning
> about this non blown stuff. It is a different world. I see this motor as
> half a Winston Cup deal.
>
> Looking forward to seeing you on the salt Dave......
>
> Speaking about half a V8, are any of you bent 8 guys running flat cranks?
> Does anyone have forgings? Ford? (I'm still loyal)
> I have a real long term project in mind and think I need to be learning
> about different configurations.
>
> Rick
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