147 replies to this topic

[Zook]

Yeah John, I get that, but what hasn't been explained is why GM were talking about this mod a year or so before actually implementing it.

[FLY_AGAIN_XU-1]

So is there also a 1970 Bathurst XU1 ?

Yes, If 1971, 1972 & 1973 Bathursts exsist surely a 1970 Bathurst must also exsist...........

[FLY_AGAIN_XU-1]

That's an interesting one in light of the 3 Sept 70 Letter. Can you make any more sense of it Fly?

G/Day Zook
According to the C.A.M.S. Rules there were only a few things that needed to be actually fitted to the road going variants to homologate parts for the race teams. Two items that come to mind are wheels and diff ratios. These two items needed to be fitted to the road going variants. Apart from this Holden were only required to produce 200 basically identical units. So in most cases the parts were,nt required to actually be fitted in production to the cars. Only that Holden had to produce 200 basically identical units to allow the race teams to use these new parts for racing purposes. It was all about motor racing..............

[FLY_AGAIN_XU-1]

someone once told me all 1970 xu1 where bathurst cars, but my beleaf is if the car in question was not built before that day,,, un-lucky.

cheers gong

According to the C.A.M.S. Rules Holden were only required to have 50%, 100 cars sold (Not Built) of the required 200 cars to allow the homologation. Put simply, Holden only needed 100 orders for C.A.M.S. to allow the race teams the new parts. For Holden to complete the homologation and comply with the C.A.M.S. Rules 200 cars then had to be built.

The 1971 Bathurst CK,s are a prime example of this. 300 cars were required and 300 cars were built. These 300 cars were built between 31-8-1971 to the 6-12-1971. Some are ADR plated the 9/71 some are ADR plated the 11/71. So as long as Holden had 100 cars sold and then built the required 300 cars all was fine.................

So you see a Bathurst XU-1 just isnt a 8th or 9th month ADR plated car. A Bathurst XU-1 can be a 6th or a 11th month ADR plated car also..............

[Kockum]

This text was taken from Street Machine Hot Holdens Number 3. This article is interesting reading but don't take it as being 100% accurate.









D.

[Zook]

LOL, John, I know what you are saying about the fan. Have you got one for sale?

[Kockum]

A contact has a very original HK 327 SERIES 1 that WARREN TURNBULL is aware of . Series 1 used the same 3 inch alternator pulley as LC and some LJ with an external regulator . I photographed his alternator off this car recently and this original . unmolested pulley is black ----- no sign of any plating at all .

[Bazza]

A contact has a very original HK 327 SERIES 1 that WARREN TURNBULL is aware of . Series 1 used the same 3 inch alternator pulley as LC and some LJ with an external regulator . I photographed his alternator off this car recently and this original . unmolested pulley is black ----- no sign of any plating at all .

Hi

There was a NOS XU-1 pulley sold on eBay recently (for about $300 if I recall correctly). It was black and had no keyway. I think that the black ones were used on the Bosch alternators. The later keyway type were used with the introduction of the Lucas with the internal regulator.

Cheers

Bazza