512 replies to this topic

[S pack]

What makes them so special Al? They were bog stock XU1's with a set of Magnesium alloy wheels were they not or did some of those XU1's also incorporate Amendment 5/5V which would have improved the cars overall performance with or without the Sprintmasters?

 

Not having a go, just curious that's all.

[xu2308]

I am going off what Harry Firth told me, Harry said the 200-1972 Bathurst Specials were the Cars that got the Self locating Sprintmasters, so if they are special cause of the Wheels, maybe that's it, Harry might of thought the Wheels were the key to the win for 72  

[xu2308]

I think my self, Is just make all Aug-Sept 1972 LJ XU-1's the Special Cars, a few reasons for this, not that many left for one, the Aug and Sept cars are the ones that got these special parts in that time frame, save's all the fights, and the same for the Aug-Sept 1973 LJ XU-1's, puts every one with a Aug-Sept LJ XU-1 in the same boat, very simple I reckon

Edited by xu2308, 28 February 2014 - 11:10 PM.

[S pack]

Thanks Al, duly noted.

[FLY_AGAIN_XU-1]

Hey Al
Just wondering if we need to eliminate the 6/70 and 10/70 LC XU-1,s also, plus the 10/71 and 11/71 CK,s ???
Just wondering also were it states in the cams rules about a time limit or time frame required for these cars to have been built by ???

[xu2308]

Not into the LC's so I don't know with them, leave that to the LC guys I guess

[FLY_AGAIN_XU-1]

A Loaded Question

What does a 11/72 LJ XU-1 have in common with a 11/72 self locating sprintmaster ???

[crabba67]

 some11/72 lj xu1  received self locating sprintmaster dated 11/72  FITTED that the dealer not at the factory

[frash da bucket]

Hi Guy's

 

My car is a early september bulid,My original owner was there on the day when the car transporter arrived at the dealership.

It already had the sprintmasters fitted from the factory and a spare one in the boot,so 5 rims.

When he took delivery of it he asked the dealer if the rims could be changed to the steel rims(Nibless).

He lived in the southern high lands and the roads in those days were pot holed and bad,he thought the mags would get buckled of damaged on those roads.

It still has all of the spacers,3 on each front and 2 on each back,and i still have all nibless rims today wheel nuts and centre caps.He also told me the first week of owning it he lost 2 dress rims,he removed the other 2 off.

Im the 3rd owner of the car now.

 

Regards John.

[crabba67]

Hi frash how are you hope well,  will not get into detail about your car but by memory 9/72 is one of the last brissy cars with sprinty first week september.not many 8/9 month 72 brissy cars left have information on a few 1/9/72 cars built at brissy all seem to have 3:55 diff with sprinty,s 

regards anthony

[yel327]

Crabba, where are you finding these 3.55:1 diffs? They might be there but i'm yet to see one. Most appear to be 3.36 (E in the BETSBAC code). Lots of GTR's have a C that look like a G.

[crabba67]

Hi yel327,is the same code, example xu1972 sold his car which has a 3:55 dif correct date code ##H2 short bolt very rare which was one of  the first car at adelaide to receive one, the first car at adelaide to receive 3:55 diff 28/9/72 with the 8 plated cars build in the 9 month 72 receiving 3:55 diff with the last car being build on the 30/8/72. so from vin L210396 to L213536 dont include the car built before 28/9/72 and 50 at brissy.

cheers

[crabba67]

correct it, so from vin L210396 to L213537 dont include the cars built before 28/8/72

Hi yel327,is the same code, example xu1972 sold his car which has a 3:55 dif correct date code ##H2 short bolt very rare which was one of  the first car at adelaide to receive one, the first car at adelaide to receive 3:55 diff 28/9/72 with the 8 plated cars build in the 9 month 72 receiving 3:55 diff with the last car being build on the 30/8/72. so from vin L210396 to L213536 dont include the car built before 28/9/72 and 50 at brissy.

cheers

[S pack]

Anthony, what do you mean by 'short bolt very rare'? All 3.55 banjo diffs ever made used the same carrier as the 3.36 ratio. Only 3.08 and 2.78 ratio used the carrier that requires two long bolts.

 

GMH certainly stuffed up the BETSBAC's on those cars as it should be a G not an E.

Actually they stuffed up the BETSBAC's on all the XU1's. Should be F's not E's and D's not C's.

[crabba67]

dave,meant to say 3:55 lsd short bolt lj rare with date,but i think all 3:55 are short bolt?

and codes you are correct.

 

[FLY_AGAIN_XU-1]

Dave, thats not the only thing they stuffed up...

Check out these 5 stuff ups :

82911JL194151
82911JL194153
82911JL194258
82911JL194461
82911JL194595

A forum member owns one of the 5 and I can tell ya they ain't no GTR,s......

[yel327]

Anthony, what do you mean by 'short bolt very rare'? All 3.55 banjo diffs ever made used the same carrier as the 3.36 ratio. Only 3.08 and 2.78 ratio used the carrier that requires two long bolts.

 

GMH certainly stuffed up the BETSBAC's on those cars as it should be a G not an E.

Actually they stuffed up the BETSBAC's on all the XU1's. Should be F's not E's and D's not C's.

 

Dave, the codes are right, the XU-1's got an optional ratio but the LSD was part of the XU1 special vehicle package hence doesn't appear as an LSD option code. It seems odd but that is how it works. HJ was the same for disc brakes with V8, discs came standard with V8 but don't appear in the betsbac.

 

Crabba, that range you quoted shows E so those cars left the assembly plant with 3.36. They would have a G with a 3.55. All it means is someone has changed the ratio afterwards or used a HQ centre.

[S pack]

Dave, the codes are right, the XU-1's got an optional ratio but the LSD was part of the XU1 special vehicle package hence doesn't appear as an LSD option code. It seems odd but that is how it works. HJ was the same for disc brakes with V8, discs came standard with V8 but don't appear in the betsbac.

 

Crabba, that range you quoted shows E so those cars left the assembly plant with 3.36. They would have a G with a 3.55. All it means is someone has changed the ratio afterwards or used a HQ centre.

Well that's all a bit screwy then Byron. The XU1 came standard with front disc brakes as part of the XU1 special vehicle package and their BETSBAC's contain the appropriate code for disc brakes.

[frash da bucket]

Hi CK1971,

 

All that what my original owner told me 9 years ago the holden dealer removed the nibless rims off one of the xu- 1's on the lot i'll have to ask him if there was a price difference...

 

 

Regards John.

[yel327]

Well that's all a bit screwy then Byron. The XU1 came standard with front disc brakes as part of the XU1 special vehicle package and their BETSBAC's contain the appropriate code for disc brakes.

GTR was standard with discs, and the betsbac code will show the standard package's brakes ie GTR. It all seems strange until you look at how HQ and HJ work and it starts to make sense. What makes it tough sometimes is they change the logic of how the betsbac code is applied between series.

[S pack]

Anthony, those XU1's fitted with the 3.55:1 diffs. Have you seen any of their broadcast sheets? If so what is their rear axle code on the sheet?

 

Cheers

Dave.

[frash da bucket]

Hi CK1971,

 

My original owner told me today he got at a rebate cheque of $350.00 from holden for the sprintmasters,a week later from paying for in 1972.

 

Regards John.

[crabba67]

Hi Dave,no i haven't seen one dave  but the owners of the cars i take their word about the cars and diff casting they fit the time frame to what we are talking about. i can,t talk about owners cars and information.

cheers

Anthony, those XU1's fitted with the 3.55:1 diffs. Have you seen any of their broadcast sheets? If so what is their rear axle code on the sheet?

 

Cheers

Dave.

[crabba67]

some 8/9 month 1972 specials for sale from the 1980s