[Fot] Quaife for Spitfire/GT6

[Barr, Scott]

The Quaife isn't ideal purely for racing, but it would be a great compromise for a car that's street legal and sees time on the track, too.   Once you unweight the right rear tire, you lose drive.  But that's not going to happen on the street at anything like legal (or reasonable) speeds.  And on the track, it has the benefit of teaching you to be very smooth transitioning the weight of the car around - if you don't turn in smoothly enough, you'll unweight that tire and regret it.

Scott B.

From: Fot [mailto:fot-bounces at autox.team.net] On Behalf Of Joe Curry
Sent: Wednesday, June 17, 2015 12:36 AM
To: 'Bud Rolofson'; 'Jason Sukey'
Cc: 'FOT list'
Subject: Re: [Fot] Quaife for Spitfire/GT6

I don't know anything about the Yukon, but I can say that the PhantomGrip is more phantom than grip.  When I tried it, my times did not improve any over an open diff.  Save your money on that option.

The Quaife does provide limited slip potential but because it is torque biased, if you break an axle or U-Joint on one side, you lose all drive on both sides.  So you will be pushing the car off the course.

Joe


________________________________
From: Fot [mailto:fot-bounces at autox.team.net] On Behalf Of Bud Rolofson
Sent: Tuesday, June 16, 2015 9:21 PM
To: Jason Sukey
Cc: FOT list
Subject: Re: [Fot] Quaife for Spitfire/GT6

Jason,

Take a look at these options. Marcel uses the Yukon I believe and the other lets you convert your diff to a LSD..
I have tried neither but they look like good options to the Quaife.

Bud


https://www.yukongear.com/Downloads/Manuals/Zip_Locker_Installation_Manual.pdf
http://www.importperformanceparts.net/imports/phantomgrip-triumph.html


Sent from my Commodore 64

On Jun 16, 2015, at 1:50 PM, Jason Sukey <jsukey at gmail.com<mailto:jsukey at gmail.com>> wrote:
This diff is going to be used for autox, vintage race, and street....I think the Quaife offers the best compromise for me- welded spiders would be a bit too much.

Jason

On Tue, Jun 16, 2015 at 12:59 PM, Greg And Alison Blake <ablake2 at austin.rr.com<mailto:ablake2 at austin.rr.com>> wrote:
Not to spark a huge debate, but I simply weld the spider gears. It's a little cheaper.
Of course the driving style is a little different.

Greg

On Jun 16, 2015, at 11:02 AM, Brian Dennis <britracer89 at yahoo.com<mailto:britracer89 at yahoo.com>> wrote:
That looks much better.
Thank you,
Brian
Foster, RI

________________________________
From: Charly <charly at mitchelplumbing.com<mailto:charly at mitchelplumbing.com>>
To: Jason Sukey <jsukey at gmail.com<mailto:jsukey at gmail.com>>; FOT list <fot at autox.team.net<mailto:fot at autox.team.net>>; Brian Dennis <britracer89 at yahoo.com<mailto:britracer89 at yahoo.com>>
Sent: Tuesday, June 16, 2015 11:27 AM
Subject: Re: Re: [Fot] Quaife for Spitfire/GT6

Try this

http://www.motorsport-tools.com/catalogsearch/result/?carfittment=95&q=quaife


On Tue 16/06/15  6:52 AM , Brian Dennis britracer89 at yahoo.com<mailto:britracer89 at yahoo.com> sent:
> This is where I got mine a couple years ago. They had it in stock. Was
> also the best price for diff and shipping. They are in UK. Make sure
> they include a very detailed description for customs. UPS returned it
> to sender without checking with sender or receiver. Fed-ex called me.
> For customs they wanted to know exactly what it was RE: car part,rear
> differential, locates in rear suspension/drive-train of car, made of
> steel.
> Quaife ATB Helical LSD Differential Caterham / Morris Marian / Triumph
> - Part Number: QDF8K - Sparktec Motorsports - ATB Helical LSD
> Differentials [1]
> [2]
> Quaife ATB Helical LSD Differential Caterham / Morris Ma...
> [3]Manufacturer: Quaife Part Number: QDF8K Product Description: A
> direct replacement for standard open differentials, the Quaife ATB
> Helical LSD differential trans...
> View on  www.sparktecmotorsp<http://www.sparktecmotorsp>... [4]
> Preview by Yahoo
> BrianFoster, RI
> -------------------------
> FROM: Jason Sukey
> TO: FOT list
> SENT: Tuesday, June 16, 2015 9:27 AM
> SUBJECT: [Fot] Quaife for Spitfire/GT6
> I'm currently looking for a Quaife LSD unit for the Spitfire/GT6
> differential.  Any recommendations on a source for this- I'm OK with
> new or used.
> Thanks!
> Jason Sukey
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> [2] http://www.sparktecmotorsports.com/qua-qdf8k.html
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