Scooby/Dat final drive

[evtech]

Well finnally got the scoob VSLD connected to the datsun hub flanges, after 2 previous attempts/breaks I opted to get a new quadrant and full, one piece shaft made to order via a local enginnering shop, and stop trying to codge the 2 bits together as the piccy shows, they is built for the job.

Word from the wise, should anyone try this mod in the future, then I'd reccommend having a new hub and companion flange made up to allow retention of the complete Datsun drive shaft, it wouild fit directly to the scoob diff and then you'd just bolt up your original shafts, isn't life great with hind sight.

Only worry now is will the diff hold up to the torture, the shafts are rated for 750-1000ft/lb torque, so they ain't gonna snap quick.

Regards

Nigel

 

[Russ]

Those shafts look pukka! and expensive

Would there be anyway to have a new hub/flange made up or borrowed from another car to go fully to cv joints I wonder?

Looking good though

 

[evtech]

Would there be anyway to have a new hub/flange made up or borrowed from another car to go fully to cv joints I wonder?

GKN do something along the line of companion flange to CV adaptor, but I've yet to locate the item in the Uk, I've found mentions over the pond (and swap out's for 280 diffs) but my first event is this Saturday so 'needs must' as they say; I've only just finished bolting them up................................ Just for the humiliation I'll post some shots of proto's 1 and 2 in the morning.

Nige

p.s. yes they did cost a bit, but don't tell Mrs E

 

[SKiddell]

These guys do some really neat stuff

http://www.modern-motorsports.com/catalog/default.php

Flange CV adapters, 5 stud hubs, brake kits blah blah blah.

It will be interesting to see how the viscous diff performs, some are of the opinion are that they can be a little "laggy" when reacting to torque differential due to the fact that the fluid viscosity needs to change (temperature induced) in order to induce drag on the plates, this takes a few milliseconds, meanwhile one wheel is gripping and the other not.

I like the half shafts and would be interested to talk further on that one ....interesting to note that you have retained the UJ rather than the power sapping, heavy weight CV stylee, no view on that really only that I am still not convinced that the original shafts are as bad as people say they are (if in good condition and not used on a rally cars) clearly they can be used with reasonable power (example was the Aussy car running 500HP)........Discuss

 

[evtech]

These guys do some really neat stuff

http://www.modern-motorsports.com/catalog/default.php

Flange CV adapters, 5 stud hubs, brake kits blah blah blah.

Hi Skiddel

Seen these bits/guys, just prices scared me s...less.

It will be interesting to see how the viscous diff performs, some are of the opinion are that they can be a little "laggy" when reacting to torque differential due to the fact that the fluid viscosity needs to change (temperature induced) Having driven around for a day, it is interesting to note the diff does 'warm up' now I can see this causing me trouble at hillclimbs, as I only get to tickover in the paddock and about a 100yrd drive to start line in order to induce drag on the plates, this takes a few milliseconds, meanwhile one wheel is gripping and the other not.

I like the half shafts and would be interested to talk further on that one Companies called Billcar Engineering in Shrewsbury Shropshire, do engines et everything....interesting to note that you have retained the UJ rather than the power sapping, heavy weight CV stylee, no view on that really only that I am still not convinced that the original shafts are as bad as people say they are (if in good condition and not used on a rally cars) clearly they can be used with reasonable power (example was the Aussy car running 500HP)........Discuss Did put my little 'word to the wise' in the post, could have popped the shafts out of the diff and had new shafts made up with flanges to allow retention of original shafts, interesting to note the rating they gave the new bit of shaft, but still retain the original spicer at the hub, chance for someone else to do a proto 4 .

Must get the photos on of my failed attempts, will do it over the weekend.

Due at Loton tommorrow (saturday) for a 'practice day'

Nigel

 

[260Z TT]

Good luck tomorrow!
Will try and get the Cheshire Plainz lot back down there at some point during the year. Any chance of some dates, as we are planning the calendar at the pub meeting on Sunday afternoon, at the Grapes hotel in Croston, Lancs. All are welcome to join us if free in the afternoon, pub landlord is a Z owner too!

On the driveshaft issue, my 260TT has S14 inner flanges and viscous lsd, 280zx outer flanges and 240z hubs. Shaft sections were fabricated one-off by North West Propshafts in Coppull, near Chorley.
Mark.

 

[SKiddell]

Agreed, good luck for tomorrow, lets us know how it goes

 

[evtech]

Dates

Good luck tomorrow!
Will try and get the Cheshire Plainz lot back down there at some point during the year. Any chance of some dates, .............
Mark.

Mark

All dates and other info can be found by following the link to HDLCC in my signature at the bottom of this post.

Thanks for your input.

Nigel

 

[evtech]

eskimos and seals, we know a joke about that..........

Blew the exhaust/inlet gasket, got over enthusiastic with the boost, let it 'hang in there for a while' on the not so ceder straight, scooby diff a complete success, took 11 seconds off last years best times to the top, and at loton park that's like a week in real money.

Respect to Gwyn (samuri-240) for having a look see for a replacement and respect to Dave Jarman for the metal replacement option, both receptive even to a saturday am phone call, cheque in the royal snail .

Doing club steward for Sunday, see even us race boys do some work for the club, want to get involved in motorsport?? try http://www.volunteersinmotorsport.co.uk/

More to follow as the season progresses.

Nigel

 

[260Z TT]

Very good news Nigel, 11 secs is a huge improvement up there!
I too have a totally shot manifold gasket, am looking for some kind of upgrade that will cope with the boost/heat, am at 15psi at the moment.
I have got a genuine gasket in stock going spare if that is of any use?
Mark.

 

[evtech]

As promised my first efforts at the shafts.

Well I promised to hang out my dirty washing and here it is.

In the picture you can see on the left is a spare bit of scooby shaft, mid shot is proto 2 unbroken, the welds/pins/sleeve held, this shaft was on the offside.

Unfortunately on the right of the picture is proto 2 in bits

Proto 1 was just the quadrant and shaft welded without sleeves etc, they had some heat treament but basically they just twisted, may have worked with some hardening, but having the new shatfs in now I realised I should have gone that way first.

Nigel

 

[datsun dave]

Welcome to the "Broken Shaft Club" did my scooby shafts at the Pod start line