--===============4094786285468751908==
boundary="=_af3c13cc-44ea-4434-871e-3e5f047dc7ff"
--=_af3c13cc-44ea-4434-871e-3e5f047dc7ff
Content-Transfer-Encoding: quoted-printable
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" <fot@autox.team.net>=20
Aan: "fot" <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
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=20
Archive: http://www.team.net/pipermail/fot=20
on54@gmail.com=20
BQ_END
_______________________________________________=20
fot@autox.team.net=20
http://www.fot-racing.com=20
Archive: http://www.team.net/pipermail/fot=20
arcel@telenet.be=20
--=_af3c13cc-44ea-4434-871e-3e5f047dc7ff
Content-Transfer-Encoding: quoted-printable
<html><body><div style=3D"font-family: Verdana, Arial, Helvetica, sans-seri=
f; font-size: 10pt; color: #000000"><div>Duncan, the gearbox in my racecar =
(TR4A) is a dogbox, so without synchromesh rings, and I suppose you c=
an compare it to a bike gearbox when considering what oil can be used.</div=
><div>Marcel</div><div><br></div><hr id=3D"zwchr" data-marker=3D"__DIVIDER_=
_"><div data-marker=3D"__HEADERS__"><b>Van: </b>"fot" <fot@autox.team.ne=
t><br><b>Aan: </b>"fot" <fot@autox.team.net><br><b>Verzonden: </b>=
Zondag 16 december 2018 23:05:36<br><b>Onderwerp: </b>Re: [Fot] bike engine=
oil for overdrive gearbox?<br></div><br><div data-marker=3D"__QUOTED_TEXT_=
_">Don=E2=80=99t most motorcycles that share oil between the engine and gea=
rbox use dog gear engagement? The label on the Honda synthetic motorc=
ycle oil I have been using in my NSU 1200 engine (practically a motorcycle =
engine anyhow) touts its favorable effect on dog gears. Of course, th=
at 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 c=
ombo.<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 g=
earbox temperatures down: <a href=3D"https://www.redlineoil.com/shockp=
roof-gear-oils" class=3D"" target=3D"_blank">https://www.redlineoil.com/sho=
ckproof-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 usi=
ng 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 synchro=
mesh oil (AC Delco 10-4014) gave a slight improvement in feel and synchro a=
ction. </div><div class=3D""><br class=3D""></div><div class=3D""><br=
class=3D""><div><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"">http://www.fot-racing.com<br class=3D""><br class=3D"">Donate: http=
://www.team.net/donate.html<br class=3D"">Archive: http://www.team.net/pipe=
rmail/fot<br class=3D"">Unsubscribe/Manage: http://autox.team.net/mailman/o=
ptions/fot/duncan.charlton54@gmail.com<br class=3D""><br class=3D""><br cla=
ss=3D""></div></blockquote></div><br class=3D""></div><br>_________________=
______________________________<br>fot@autox.team.net<br><br>http://www.fot-=
racing.com<br><br>Donate: http://www.team.net/donate.html<br>Archive: http:=
//www.team.net/pipermail/fot<br>Unsubscribe/Manage: http://autox.team.net/m=
ailman/options/fot/van.mulders.marcel@telenet.be<br></div></div></body></ht=
ml>
--=_af3c13cc-44ea-4434-871e-3e5f047dc7ff--
--===============4094786285468751908==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://www.team.net/pipermail/fot
--===============4094786285468751908==--
|