Your comment on Brian Shilt's SV being undrivable on the highway leads me to believe that I have a 4.22 rear end. Driving by ear at 50-55 mph I feel that
the engine is quite busy and may infact be nearing its red line. How available are 3.89 rear ends? If I were to swap, I'd also be interested in widening
the track. Could I accomplish all of this with an alternate axle, say from a Mustang II or Ford Ranger?
Scott Donnelly
SV
Ian Spencer wrote:
> Scott,
> If your car was factory equipped with an OD it would be stamped into the data tag. It is very possible that your have an OD rear end though. There
> was a batch of non OD Series V's sent to North America with 4.22:1 rear ends. I have been replacing those 4.22's with 3.89's in the Series V's that I
> have encountered and it makes a huge difference. It's more than likely that your tach is correct and you just need to swap rear ends. The black
> Series V we just restored for Brian Shilt had the same problem. His car was undrivable on the highway. He is now very pleased with how it runs.
>
> Scott Donnelly wrote:
>
> > 4th gear, no over drive. I suspect tach error which is apparently common and a low geared axle are causing my rpms to be high. Perhaps my car was
> > originally equipped with an overdrive?
> > Scott Donnelly
> > SV
> >
> > jeyerman(at)ix.netcom.com wrote:
> >
> > > Way, way off..... more like 3500RPM for 60MPH. Are you sure you are in top gear?
> > >
> > > Jan
> > >
> > > Scott Donnelly <oharajem(at)free.midcoast.com> wrote:
> > > > At 50 mph I am turning about 5000 rpm. Does this sound about right or ismy tach off? If these cars were capable of nearly 100mph, alot must
> > > happen within the next 1000 or so rpms!
> > > Scott Donnelly
> > > SV
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