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Does the wet clutch material in a motorcycle resemble the wet clutch =
material in the overdrive unit?
Duncan
> On Dec 17, 2018, at 2:07 AM, van.mulders.marcel@telenet.be wrote:
>=20
> Duncan, the gearbox in my racecar (TR4A) is a dogbox, so without =
synchromesh rings, and I suppose you can compare it to a bike gearbox =
when considering what oil can be used.
> Marcel
>=20
> Van: "fot" <fot@autox.team.net>
> Aan: "fot" <fot@autox.team.net>
> Verzonden: Zondag 16 december 2018 23:05:36
> Onderwerp: Re: [Fot] bike engine oil for overdrive gearbox?
>=20
> Don=E2=80=99t most motorcycles that share oil between the engine and =
gearbox use dog gear engagement? The label on the Honda synthetic =
motorcycle oil I have been using in my NSU 1200 engine (practically a =
motorcycle engine anyhow) touts its favorable effect on dog gears. Of =
course, that left me wondering what its effect on synchromesh would be, =
so I wondered whether it would be appropriate for my Mini Cooper S race =
engine/gearbox combo.
>=20
> I have have heard good things about Redline Shock Proof Gear Oil=E2=80=99=
s ability to keep gearbox temperatures down: =
https://www.redlineoil.com/shockproof-gear-oils =
<https://www.redlineoil.com/shockproof-gear-oils> . The literature =
suggests that it creates less drag compared to other oils of the same =
viscosity rating. I use it in the gearbox of the NSU racer but have =
made no attempt to measure how hot it gets with any type of oil.
>=20
> Duncan
> Ps: I=E2=80=99ve been using 30 weight non-detergent oil in the Moss =
gearbox in my Morgan but that=E2=80=99s an unusual gearbox with rather =
balky steel synchro materials. The redline product I tried gave about =
the same shift feel but the synchromesh oil (AC Delco 10-4014) gave a =
slight improvement in feel and synchro action. =20
>=20
>=20
> On Sun, Dec 16, 2018 at 9:25 AM van.mulders.marcel--- via Fot =
> Like most TR racers I believe that an overdrive gearbox is worth some =
laptime on most racetracks. But there are some drawbacks :9.5kgs weight =
penalty and the gap between 4th gear and 4th overdrive gear is too big. =
There is also a considerable amount of power loss when the overdrive is =
engaged because of the friction in the overdrive gears : but I think =
that in general modern engine oil can reduce the friction in the =
overdrive, compared to GL-4 gear oil, because it has much better =
friction modifiers. But are these friction modifiers compatible with the =
clutch in the overdrive?? Classic Mini's and most bikes have 1 oil pan =
for both engine and gearbox : what about using a modern bike oil or a =
modern (synthetic) classic mini oil in an overdrive gearbox to reduce =
the friction in the overdrive and gain some acceleration when 4th =
overdrive gear is engaged?
> Marcel
> _______________________________________________
>=20
> http://www.fot-racing.com <http://www.fot-racing.com/>
>=20
> Donate: http://www.team.net/donate.html =
<http://www.team.net/donate.html>
> Archive: http://www.team.net/pipermail/fot =
<http://www.team.net/pipermail/fot>
> Unsubscribe/Manage: =
http://autox.team.net/mailman/options/fot/kaskastner@gmail.com =
<http://autox.team.net/mailman/options/fot/kaskastner@gmail.com>
>=20
>=20
>=20
> _______________________________________________
>=20
> http://www.fot-racing.com
>=20
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/pipermail/fot
> Unsubscribe/Manage: =
http://autox.team.net/mailman/options/fot/duncan.charlton54@gmail.com
>=20
>=20
>=20
>=20
> _______________________________________________
> fot@autox.team.net
>=20
> http://www.fot-racing.com
>=20
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/pipermail/fot
> Unsubscribe/Manage: =
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;" class=3D"">Does =
the wet clutch material in a motorcycle resemble the wet clutch material =
in the overdrive unit?<div class=3D""><br class=3D""></div><div =
class=3D"">Duncan<br class=3D""><div><br class=3D""><blockquote =
type=3D"cite" class=3D""><div class=3D"">On Dec 17, 2018, at 2:07 AM, <a =
href=3D"mailto:van.mulders.marcel@telenet.be"; =
class=3D"">van.mulders.marcel@telenet.be</a> wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D""><div class=3D""><div =
style=3D"font-family: Verdana, Arial, Helvetica, sans-serif; font-size: =
10pt;" class=3D""><div class=3D"">Duncan, the gearbox in my racecar =
(TR4A) is a dogbox, so without synchromesh rings, and I suppose =
you can compare it to a bike gearbox when considering what oil can be =
used.</div><div class=3D"">Marcel</div><div class=3D""><br =
class=3D""></div><hr id=3D"zwchr" data-marker=3D"__DIVIDER__" =
class=3D""><div data-marker=3D"__HEADERS__" class=3D""><b class=3D"">Van: =
</b>"fot" <<a href=3D"mailto:fot@autox.team.net"; =
class=3D"">fot@autox.team.net</a>><br class=3D""><b class=3D"">Aan: =
</b>"fot" <<a href=3D"mailto:fot@autox.team.net"; =
class=3D"">fot@autox.team.net</a>><br class=3D""><b =
class=3D"">Verzonden: </b>Zondag 16 december 2018 23:05:36<br =
class=3D""><b class=3D"">Onderwerp: </b>Re: [Fot] bike engine oil for =
overdrive gearbox?<br class=3D""></div><br class=3D""><div =
data-marker=3D"__QUOTED_TEXT__" class=3D"">Don=E2=80=99t most =
motorcycles that share oil between the engine and gearbox use dog gear =
engagement? The label on the Honda synthetic motorcycle oil I have =
been using in my NSU 1200 engine (practically a motorcycle engine =
anyhow) touts its favorable effect on dog gears. Of course, that =
left me wondering what its effect on synchromesh would be, so I wondered =
whether it would be appropriate for my Mini Cooper S race engine/gearbox =
combo.<div class=3D""><br class=3D""></div><div class=3D"">I have have =
heard good things about Redline Shock Proof Gear Oil=E2=80=99s ability =
to keep gearbox temperatures down: <a =
href=3D"https://www.redlineoil.com/shockproof-gear-oils"; class=3D"" =
target=3D"_blank">https://www.redlineoil.com/shockproof-gear-oils</a> =
;. The literature suggests that it creates less drag compared to =
other oils of the same viscosity rating. I use it in the gearbox =
of the NSU racer but have made no attempt to measure how hot it gets =
with any type of oil.</div><div class=3D""><br class=3D""></div><div =
class=3D"">Duncan</div><div class=3D"">Ps: I=E2=80=99ve been using =
30 weight non-detergent oil in the Moss gearbox in my Morgan but =
that=E2=80=99s an unusual gearbox with rather balky steel synchro =
materials. The redline product I tried gave about the same shift =
feel but the synchromesh oil (AC Delco 10-4014) gave a slight =
improvement in feel and synchro action. </div><div class=3D""><br =
class=3D""></div><div class=3D""><br class=3D""><div =
class=3D""><blockquote class=3D""><div class=3D""><span =
style=3D"font-family: Verdana, Arial, Helvetica, sans-serif; font-size: =
10pt;" class=3D"">On Sun, Dec 16, 2018 at 9:25 AM van.mulders.marcel--- =
via Fot <</span><a href=3D"mailto:fot@autox.team.net"; target=3D"_blank"=
class=3D"" style=3D"font-family: Verdana, Arial, Helvetica, sans-serif; =
font-size: 10pt;">fot@autox.team.net</a><span style=3D"font-family: =
Verdana, Arial, Helvetica, sans-serif; font-size: 10pt;" class=3D"">> =
wrote:</span></div><div class=3D""><div class=3D""><div =
style=3D"font-family: Verdana, Arial, Helvetica, sans-serif; font-size: =
10pt;" class=3D""><div class=3D""><div class=3D"gmail_quote"><blockquote =
class=3D"gmail_quote" style=3D"margin: 0px 0px 0px 0.8ex; border-left: =
1px solid #cccccc; padding-left: 1ex;"><div class=3D""><div =
style=3D"font-family: Verdana, Arial, Helvetica, sans-serif; font-size: =
10pt;" class=3D""><div class=3D"">Like most TR racers I believe that an =
overdrive gearbox is worth some laptime on most racetracks. But there =
are some drawbacks :9.5kgs weight penalty and the gap between 4th gear =
and 4th overdrive gear is too big. There is also a considerable amount =
of power loss when the overdrive is engaged because of the friction in =
the overdrive gears : but I think that in general modern engine oil can =
reduce the friction in the overdrive, compared to GL-4 gear oil, because =
it has much better friction modifiers. But are these friction modifiers =
compatible with the clutch in the overdrive?? Classic Mini's and most =
bikes have 1 oil pan for both engine and gearbox : what about using a =
modern bike oil or a modern (synthetic) classic mini oil in an overdrive =
gearbox to reduce the friction in the overdrive and gain some =
acceleration when 4th overdrive gear is engaged?</div><div =
class=3D"">Marcel</div></div></div>_______________________________________=
________<br class=3D"">
<a href=3D"mailto:fot@autox.team.net"; target=3D"_blank" =
class=3D"">fot@autox.team.net</a><br class=3D"">
<br class=3D"">
<a href=3D"http://www.fot-racing.com/"; rel=3D"noreferrer" =
target=3D"_blank" class=3D"">http://www.fot-racing.com</a><br class=3D"">
<br class=3D"">
target=3D"_blank" class=3D"">http://www.team.net/donate.html</a><br =
class=3D"">
Archive: <a href=3D"http://www.team.net/pipermail/fot"; rel=3D"noreferrer" =
target=3D"_blank" class=3D"">http://www.team.net/pipermail/fot</a><br =
class=3D"">
href=3D"http://autox.team.net/mailman/options/fot/kaskastner@gmail.com"; =
rel=3D"noreferrer" target=3D"_blank" =
class=3D"">http://autox.team.net/mailman/options/fot/kaskastner@gmail.com<=
/a><br class=3D"">
<br class=3D"">
<br class=3D"">
</blockquote></div><br =
class=3D""></div></div></div>_____________________________________________=
__<br class=3D""><a href=3D"mailto:fot@autox.team.net"; class=3D"" =
target=3D"_blank">fot@autox.team.net</a><br class=3D""><br class=3D""><a =
href=3D"http://www.fot-racing.com"; =
class=3D"">http://www.fot-racing.com</a><br class=3D""><br =
class=3D"">Donate: http://www.team.net/donate.html<br class=3D"">Archive: =
http://www.team.net/pipermail/fot<br class=3D"">Unsubscribe/Manage: =
http://autox.team.net/mailman/options/fot/duncan.charlton54@gmail.com<br =
class=3D""><br class=3D""><br class=3D""></div></blockquote></div><br =
class=3D""></div><br =
class=3D"">_______________________________________________<br =
class=3D""><a href=3D"mailto:fot@autox.team.net"; =
class=3D"">fot@autox.team.net</a><br class=3D""><br =
class=3D"">http://www.fot-racing.com<br class=3D""><br class=3D"">Donate: =
http://www.team.net/pipermail/fot<br class=3D"">Unsubscribe/Manage: =
http://autox.team.net/mailman/options/fot/van.mulders.marcel@telenet.be<br=
class=3D""></div></div></div></div></blockquote></div><br =
class=3D""></div></body></html>=
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