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I don't know what material wet clutch linings in a motorcycle is made of. T=
he clutch material in the overdrive is ressembling a bit the organic materi=
al on classic dry clutches (not sintered or cerametallic) : yellowisch, cor=
k aspect.=20
Marcel=20
Van: "Duncan Charlton" <duncan.charlton54@gmail.com>=20
Aan: "fot" <fot@autox.team.net>, "van mulders marcel" <van.mulders.marcel@t=
elenet.be>=20
Verzonden: Maandag 17 december 2018 13:36:25=20
Onderwerp: Re: [Fot] bike engine oil for overdrive gearbox?=20
Does the wet clutch material in a motorcycle resemble the wet clutch materi=
al in the overdrive unit?=20
Duncan=20
On Dec 17, 2018, at 2:07 AM, [ mailto:van.mulders.marcel@telenet.be | van.m=
ulders.marcel@telenet.be ] wrote:=20
Duncan, the gearbox in my racecar (TR4A) is a dogbox, so without synchromes=
h rings, and I suppose you can compare it to a bike gearbox when considerin=
g what oil can be used.=20
Marcel=20
Van: "fot" < [ mailto:fot@autox.team.net | fot@autox.team.net ] >=20
Aan: "fot" < [ mailto:fot@autox.team.net | fot@autox.team.net ] >=20
Verzonden: Zondag 16 december 2018 23:05:36=20
Onderwerp: Re: [Fot] bike engine oil for overdrive gearbox?=20
Don=E2=80=99t most motorcycles that share oil between the engine and gearbo=
x 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 an=
yhow) touts its favorable effect on dog gears. Of course, that left me wond=
ering what its effect on synchromesh would be, so I wondered whether it wou=
ld 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=99s =
ability to keep gearbox temperatures down: [ https://www.redlineoil.com/sho=
ckproof-gear-oils | https://www.redlineoil.com/shockproof-gear-oils ] . The=
literature suggests that it creates less drag compared to other oils of th=
e 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=20
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 f=
eel but the synchromesh oil (AC Delco 10-4014) gave a slight improvement in=
feel and synchro action.=20
BQ_BEGIN
On Sun, Dec 16, 2018 at 9:25 AM van.mulders.marcel--- via Fot < [ mailto:fo=
t@autox.team.net | fot@autox.team.net ] > wrote:=20
BQ_BEGIN
Like most TR racers I believe that an overdrive gearbox is worth some lapti=
me 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 al=
so a considerable amount of power loss when the overdrive is engaged becaus=
e of the friction in the overdrive gears : but I think that in general mode=
rn engine oil can reduce the friction in the overdrive, compared to GL-4 ge=
ar oil, because it has much better friction modifiers. But are these fricti=
on modifiers compatible with the clutch in the overdrive?? Classic Mini's a=
nd 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?=20
Marcel=20
_______________________________________________=20
[ mailto:fot@autox.team.net | fot@autox.team.net ]=20
[ http://www.fot-racing.com/ | http://www.fot-racing.com ]=20
]=20
Archive: [ http://www.team.net/pipermail/fot | http://www.team.net/pipermai=
l/fot ]=20
gmail.com | http://autox.team.net/mailman/options/fot/kaskastner@gmail.com =
]=20
_______________________________________________=20
[ mailto:fot@autox.team.net | fot@autox.team.net ]=20
[ http://www.fot-racing.com/ | http://www.fot-racing.com ]=20
Archive: http://www.team.net/pipermail/fot=20
on54@gmail.com=20
BQ_END
_______________________________________________=20
[ mailto:fot@autox.team.net | fot@autox.team.net ]=20
http://www.fot-racing.com=20
Archive: http://www.team.net/pipermail/fot=20
arcel@telenet.be=20
BQ_END
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<html><body><div style=3D"font-family: Verdana, Arial, Helvetica, sans-seri=
f; font-size: 10pt; color: #000000"><div>I don't know what material wet clu=
tch linings in a motorcycle is made of. The clutch material in the overdriv=
e is ressembling a bit the organic material on classic dry clutches (not si=
ntered or cerametallic) : yellowisch, cork aspect.</div><div>Marcel</div><d=
iv><br></div><hr id=3D"zwchr" data-marker=3D"__DIVIDER__"><div data-marker=
=3D"__HEADERS__"><b>Van: </b>"Duncan Charlton" <duncan.charlton54@gmail.=
com><br><b>Aan: </b>"fot" <fot@autox.team.net>, "van mulders marce=
l" <van.mulders.marcel@telenet.be><br><b>Verzonden: </b>Maandag 17 de=
cember 2018 13:36:25<br><b>Onderwerp: </b>Re: [Fot] bike engine oil for ove=
rdrive gearbox?<br></div><br><div data-marker=3D"__QUOTED_TEXT__">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 class=3D""><div class=3D"">O=
n Dec 17, 2018, at 2:07 AM, <a href=3D"mailto:van.mulders.marcel@telenet.be=
" class=3D"" target=3D"_blank">van.mulders.marcel@telenet.be</a> wrote:</di=
v><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 com=
pare 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=
" class=3D""><div class=3D""><b class=3D"">Van: </b>"fot" <<a href=3D"ma=
ilto:fot@autox.team.net" class=3D"" target=3D"_blank">fot@autox.team.net</a=
>><br class=3D""><b class=3D"">Aan: </b>"fot" <<a href=3D"mailto:fot@=
autox.team.net" class=3D"" target=3D"_blank">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 over=
drive gearbox?<br class=3D""></div><br class=3D""><div 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 h=
ave been using in my NSU 1200 engine (practically a motorcycle engine anyho=
w) touts its favorable effect on dog gears. Of course, that left me w=
ondering 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 cl=
ass=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 tempe=
ratures down: <a href=3D"https://www.redlineoil.com/shockproof-gear-oi=
ls" class=3D"" target=3D"_blank">https://www.redlineoil.com/shockproof-gear=
-oils</a> . The literature suggests that it creates less drag co=
mpared to other oils of the same viscosity rating. I use it in the ge=
arbox 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 weigh=
t 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 redlin=
e product I tried gave about the same shift feel but the synchromesh oil (A=
C Delco 10-4014) gave a slight improvement in feel and synchro action. &nbs=
p;</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, sa=
ns-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"gma=
il_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""><d=
iv 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 ove=
rdrive 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 over=
drive gear is too big. There is also a considerable amount of power loss wh=
en 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 fricti=
on modifiers. But are these friction modifiers compatible with the clutch i=
n the overdrive?? Classic Mini's and most bikes have 1 oil pan for both eng=
ine 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 ov=
erdrive 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@auto=
x.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"">
et=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" t=
arget=3D"_blank" class=3D"">http://www.team.net/pipermail/fot</a><br class=
=3D"">
skastner@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 cla=
ss=3D""><a href=3D"http://www.fot-racing.com"; class=3D"" target=3D"_blank">=
http://www.fot-racing.com</a><br class=3D""><br class=3D"">Donate: http://w=
ww.team.net/donate.html<br class=3D"">Archive: http://www.team.net/pipermai=
l/fot<br class=3D"">Unsubscribe/Manage: http://autox.team.net/mailman/optio=
ns/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"" target=3D"_blank">fot@autox.team.net</a><br cla=
ss=3D""><br class=3D"">http://www.fot-racing.com<br class=3D""><br class=3D=
"">Donate: http://www.team.net/donate.html<br class=3D"">Archive: http://ww=
w.team.net/pipermail/fot<br class=3D"">Unsubscribe/Manage: http://autox.tea=
m.net/mailman/options/fot/van.mulders.marcel@telenet.be<br class=3D""></div=
></div></div></div></blockquote></div><br class=3D""></div><br></div></div>=
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_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://www.team.net/pipermail/fot
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