Gary,
When you lengthen the rod in any motor you increase
the rest time of the piston at TDC & BDC . Some engines
respond to this quite well . Gives the mixture a little more time to
build more pressure .
When you legthen the rod you need to have the piston made with the
wrist pin higher up to retain deck heigth &
proper placement of the rings .
Your dyno sheet looks good . Typical turbo motor . A excellent torque
curve & a freight train ride fron 8K up .
What did you do to make it live at 11K?
You can see some Tourmaster dyno sheets at Terry Hayden's web site
Eric H.
> Gary Voisine wrote:
> > Why is the 1500 a long rod motor?
>
> It doesn't have to be--my 1500 cc TourMaster is not. However, PCW
does
> build a 1500 cc long rod--a different package from the TourMaster.
>
>
> > Does anybody have a Dyno run on a tourmaster
> > they can post?
>
> Yes, but I won't have time to scan it for a couple of days. If
someone
> else doesn't come up with one, holler at me and I'll get it to you.
The
> pertinent data: peak rear wheel HP was 148.3 at about 8700 RPM, peak
> torque was 100.2 at about 6100 RPM.
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