Hi Bill,
Sure have driven non-synch 'boxes, some with none anyway and others with no
synchro through wear.
Tell you what, let's clarify this-I'll outline what I do and see who
agrees/disagrees.
(a) Ordinary changes:
Up...2nd.,throttle off, clutch down,neutral, pause, 3rd., clutch up,
throttle down.
Down...3rd., throttle off, clutch down, neutral, increase revs to match
speeds, 2nd., clutch up, throttle down.
(b) Double declutch down for a good synchro box:
3rd., throttle off, clutch down, neutral, clutch up and blip throttle,
clutch down, 2nd., clutch up, throttle down.
(c) Double declutch both ways for non-synch/bad synch 'box.
Up...2nd., throttle off, clutch down, neutral, clutch up (no blip), clutch
down, 2nd., clutch up, throttle down.
Down...3rd., throttle off, clutch down, neutral, clutch up and blip
throttle, clutch down, 2nd., clutch up, throttle down.
Course, if you can do (b) smoothly whilst braking, you're getting good. Rex
the BGT has a Paddy Hopkirk throttle pedal extension to allow easier heeling
and toeing like this.
Regards,
Dave H.
----- Original Message -----
From: Bill Schooler <schooler@erols.com>
To: David Hill <davhill@cwcom.net>
Cc: Skye Poier <skye@ffwd.com>; MG Nuts <mgs@autox.team.net>
Sent: Friday, January 28, 2000 1:11 AM
Subject: Re: double / single clutch
> David,
>
> Have you ever driven a car with a non-synchro gearbox? I suspect not -
> since that procedure described by Skye as "single-clutching" would be
> absolutely useless when downshifting into a non-synchro gear. (Think of
> a non-synchro gearbox as one with REALLY worn synchro cones...) Go with
> Lawrie on this issue - he's right as usual.
>
> By the way, for those who haven't used a non-synchro gearbox, and I mean
> all the gears, do you know what the proper clutch/throttle procedure is
> for upshifting?
>
> Bill
>
> David Hill wrote:
> >
> > Hello, Skye.
> >
> > IMO, single clutching is essential to the well-being of the synchro
cones.
> > You are giving them an easy life by matching the revs of the engine to
the
> > requirements of the new gear ratio.
> >
> > BTW, I've found that dipping the clutch when coming out of O/D seems to
put
> > less 'shunting' strain on the trans than simply switching out directly.
Any
> > thoughts?
> >
> > Dave Hill.
> >
> > ----- Original Message -----
> > From: Skye Poier <skye@ffwd.com>
> > To: MG Nuts <mgs@autox.team.net>
> > Sent: Thursday, January 27, 2000 10:35 PM
> > Subject: double / single clutch
> >
> > > I'm getting pretty good at double clutching when I downshift, but I'm
> > > curious, is there any benefit to single clutching?
> > >
> > > let's see if i've got this right:
> > >
> > > how normal people downshift:
> > > depress clutch, downshift, release clutch
> > >
> > > single clutch:
> > > depress clutch, shift to neutral, increase rpm, downshift, release
clutch
> > >
> > > double clutch:
> > > depress clutch, shift to neutral, release clutch, increase rpm,
depress
> > > clutch, downshift, release clutch
> > >
> > > shortshift:
> > > shifting before peak rpm or revs.. "taking it easy"
> > >
> > > speedshift:
> > > don't use the clutch at all but let off the gas
> > >
> > > powershift:
> > > don't use the clutch and don't let off the gas
> > >
> > > Thanks :)
> > > Skye
> > >
> > > --
> > > 1966 MGB - GHN3L Safety Fast! __,__\__
> > > The MGB Experience http://www.mgb.bc.ca/ (_o____o_)
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