[Spridgets] A series crankshafts

[David Littlefield]

Matt,

Scatter pattern cams reduce scavenging between the exhaust and intake
valves.

Sounds like you're going all out on this thing.  Where did you plan to
run it?  Most of what you are talking about would be illegal in many, if
not most, vintage clubs.

Best,
David
 
On Sun, 7 Dec 2008 15:23:38 -0500 "Matt Hagopian"
<mhagopian at hoppetool.com> writes:
> I dont know but I have been reading up on camshafts,
> 
> I was wondering if anyone knew the advantage of a "scatter pattern" 
> cam? I
> have one in my bug right now, and with this new motor we are 
> building, we
> are looking for the best cam for our needs... power from 
> 4500-7500rpm. Any
> suggestion on a cam?
> 
> Update on the new motor:
> Looks like we are going to go with hoosier 185/60/13, 4.55 rear 
> ratio, 5spd
> transmission, and this motor we are building... all bearings and 
> pistons are
> going to be calico coated to decrease resistance, we are going to go 
> with a
> full titanium valve train, titanium rockers, titanium 
> valves(oversized), we
> are going to stick with stock springs because of the decreased 
> weight in
> valves so hopefully we wont run into any valve float, we are going 
> to have
> the connecting rods lightened 100 grams each, engine is going to be 
> bored
> .040" over, still deciding on what pistons to go with(any 
> suggestions?), and
> we are going to have a lot of head work done. hopefully to have an 
> end
> result of 120hp and capable of 120mph. I did the calculations and 
> with this
> combo we need to reach 7500rpm to hit 120mph.(this doesnt include 
> drag)
> 
> Anyone have a suggestion for a good A series 1275 book? I have Des 
> Hammills
> book but its just info, doesnt give any inside info on which parts 
> to use,
> just suggestions on good street motors and what is neccessary to 
> have not to
> have a meltdown of a race motor...
> 
> Thanks guys
> 
> On Sun, Dec 7, 2008 at 1:31 PM, William McLeod <wbmcleod at gmail.com> 
> wrote:
> 
> > Does anyone know of a list of the various A series crankshafts
> > identified by casting numbers, or did it matter?
> >
> > TIA
> > Bill
> > Slightly Classics
> > Tucson
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> 
> 
> -- 
> Sincerely,
> 
> 
> Matt Hagopian
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