Andrew,
The RB20 box and RB25 N/A boxes would be 71C same as R31. I have not checked
out the RB25 DET box
Cheers
Feral Errol
mailto:[EMAIL PROTECTED]
http://www.datrats.com.au/
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of andrew smith
Sent: Wednesday, May 02, 2001 9:49 PM
To: [EMAIL PROTECTED]
Subject: Re: Brad and Errol
Errol,
Thanks for that.I'll continue the hunt for an R31 71C box but there pretty
hard
to find.If not i'll probably go for a silvia 71c if there the same
length.What
about the rb20 or rb25 box.
Andrew Smith
Errol Smith wrote:
> Andrew,
> The ratios in the Silvia have a 3.6 first I believe vs 3.3 in the R31. I
> dont know about the 720 box but it sounds like it is a 71C. I know the 720
Z
> box has a different main shaft and counter shaft to other boxes though. I
> believe 3.6 first gear and a low second as well. The 71C box from the R31
is
> 30 mm longer than the Z18ET 71B box.and 50mm longer than a 240K 4 speed or
> Stanza box.
> Cross member mounts are the same on the boxes I have here.
> Cheers
> Feral Errol
> mailto:[EMAIL PROTECTED]
> http://www.datrats.com.au/
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of andrew smith
> Sent: Wednesday, May 02, 2001 7:57 PM
> To: [EMAIL PROTECTED]
> Subject: Re: Brad and Errol
>
> Errol,
> Is the 71c gearbox the same ratios in the silvias and R31?What about the
720
> 4wd
> with the z24,is that a 71c as a mate said he used a box out of one and he
> had to
> modify the L series bell housing to suit the larger bearing.Can I use the
> dogleg
> bell housing as it looks compatable as far as bolt pattern goes.What
length
> is
> the 71c and what what has to be done to the crossmember.Sorry about all
the
> questions but it seems like the way to go.
> Andrew Smith
>
> Errol Smith wrote:
>
> > Andrew,
> > To use a 71C box you have to get the L series bell housing modified to
> take
> > the bigger bearings. The bearing holes are just opened up to take the
> larger
> > bearing and a circlip groove is machined in. This is not a real problem
or
> > expensive and gives a mega strong box.
> >
> > Cheers
> > Feral Errol
> > mailto:[EMAIL PROTECTED]
> > http://www.datrats.com.au/
> >
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED]]On Behalf Of andrew smith
> > Sent: Tuesday, May 01, 2001 12:58 AM
> > To: [EMAIL PROTECTED]
> > Subject: Re: Brad and Errol
> >
> > Errol,
> > Will the 71C box bolt straight up to an L series.What about length etc.I
> > think I
> > know where I can get one as I got some rear brakes off one last week.
> > Andrew Smith
> >
> > Errol Smith wrote:
> >
> > > Andrew,
> > > The option one gears are the same as a conventional five speed but are
> > > different ratios and use a dogleg 4/5 same plane shift pattern with a
> one
> > to
> > > one top gear. The shifter rails and selector rings are different to
any
> > > other Nissan stuff and in my opinion are becoming a little old for
race
> > use
> > > now depending on previous use, due to gear cracking etc.
> > > There was a supposedly option one going in Perth about twelve months
ago
> > and
> > > I was tracking it down but it turned out to be a modded Stanza box. If
> you
> > > find an option one grab it for posterity and keep it on the shelf as
> they
> > > are not making any more of them.
> > > My preference these days is for an R31 skyline box with new gears cut
to
> > > suit. These 71C boxes are stronger and parts are easily available.
> > >
> > > Cheers
> > > Feral Errol
> > > mailto:[EMAIL PROTECTED]
> > > http://www.datrats.com.au/
> > >
> > > -----Original Message-----
> > > From: [EMAIL PROTECTED]
> > > [mailto:[EMAIL PROTECTED]]On Behalf Of andrew smith
> > > Sent: Sunday, April 29, 2001 11:29 PM
> > > To: [EMAIL PROTECTED]
> > > Subject: Re: Brad and Errol
> > >
> > > Errol,
> > > Whats the story with the option 1 as far as the gears are
concerned.Are
> > > they straight cut or helix,dog mesh or sincromesh.Are they wider
> > > gears.What about the holinger 240k box.About a year ago I passed up an
> > > option 1 for $500 because it had 1to1 ratio 5th gear(silly me).Now I
> > > really need something stronger than a dogleg.I'm having to nurse the
> > > gearbox at the moment and I dont like doing that.
> > > Andrew Smith
> > >
> > > Errol Smith wrote:
> > >
> > > > Nat,
> > > > In order of preference.
> > > > 1. Nismo option 1 $$$$$$$$$$$$$
> > > > 2. Holinger five speed 240K box
> > > > 3. 260Z 2.9 first gear five speed $600 - $800 for a goodun
> > > > 4. 240K 5 speed
> > > >
> > > > Cheers
> > > > Feral Errol
> > > > mailto:[EMAIL PROTECTED]
> > > > http://www.datrats.com.au/
> > > >
> > > > -----Original Message-----
> > > > From: [EMAIL PROTECTED]
> > > > [mailto:[EMAIL PROTECTED]]On Behalf Of nat P.
> > > > Sent: Sunday, April 29, 2001 3:13 PM
> > > > To: [EMAIL PROTECTED]
> > > > Subject: Brad and Errol
> > > >
> > > > Morning guys, Quick question, which gearbox has the
> > > > better ratios for a rally car, 180B with 4.9 LS and
> > > > running 14inch rims.
> > > > Cheers NAT
> > > >
> > > > __________________________________________________
> > > > Do You Yahoo!?
> > > > Yahoo! Auctions - buy the things you want at great prices
> > > > http://auctions.yahoo.com/
> > > >
> > >
> >
>
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