Jack Night five speed

Post Reply
johno
Posts: 30
Joined: Thu Dec 11, 2003 9:05 pm
Club Member: No
Car Model: Clan Crusader
Location: Mossley Oldham

Jack Night five speed

Post by johno »

Knowing how these are like hens teeth have a look at
http://www.ebay.com/itm/Hillman-Imp-Pro ... 7675.l2557
it may still be available and worth importing.
Got to old to wriggle into the Clan
The Nun
Posts: 2872
Joined: Tue Jan 23, 2007 7:02 pm
Club Member: Yes
Car Model: Imp
Location: South
Has thanked: 68 times
Been thanked: 100 times

Re: Jack Night five speed

Post by The Nun »

Good job its got a huge front radiator as IMP rear ones just dont work :roll: and Jack Nights are extremely rare of course and a dark art, rarer than hens teeth even, this is a one off, of course the Jack Knight types are a little more numberous. :wink:
Wonder if the fact that Jackie Stewart changed gears with it makes it all the more desirable?
Nice to know its all been work on by craftsmen too, really needed to know that, its vital.
Peter Nunn...ey im member 00033
Impecunious
Posts: 160
Joined: Wed Aug 27, 2008 12:32 pm
Club Member: Yes
Car Model: Clan Crusader Singer Chamois Sport Audi A4 Quattro
Has thanked: 1 time
Been thanked: 2 times

Re: Jack Night five speed

Post by Impecunious »

Notice how most things sold in the States are 'as is, where is'?

They don't like offering guarantees... :?

Dave W.

Clan003
The Nun
Posts: 2872
Joined: Tue Jan 23, 2007 7:02 pm
Club Member: Yes
Car Model: Imp
Location: South
Has thanked: 68 times
Been thanked: 100 times

Re: Jack Night five speed

Post by The Nun »

Impecunious wrote:Notice how most things sold in the States are 'as is, where is'?

They don't like offering guarantees... :?

Dave W.

Clan003
I know, that's why I don't like flying in their planes much either.
Peter Nunn...ey im member 00033
IMPerative
Posts: 13
Joined: Sun Jun 01, 2008 12:44 pm
Club Member: No
Car Model: Aussie Imp MkIII
Location: Australia

Re: Jack Night five speed

Post by IMPerative »

Used in an F2. Isn't that the province of Lotus Twinks', FVA's, BDA's etc. Would JK Imp box be sufficiently robust?
IMPerative - must have one
Aussie MKIII
User avatar
Rod
Posts: 26
Joined: Wed Mar 07, 2007 1:56 pm
Club Member: Yes
Location: Devon
Contact:

Re: Jack Night five speed

Post by Rod »

Off the top of my head and a quick glance at Doug Nye's Cooper tome.

There was no such thing as a Formula 2 Tyrell. Ken Tyrell ran what were in effect the works Cooper Formula 3 cars in the first year of the 1000cc. pushrod Formula 3; 1964. These cars used a BMC A Series based engine and a Jack Knight Imp based gearbox. Jackie Stewart dominated the season in one and this of course made his name. There was a planned BMC Formula 2 engine for the again new formula (1000cc, again but no other restriction) but nothing came of it, other Formula 2 cars, including the Lotus Stewart drove used a Hewland box. I suppose it is just possible that the prototype BMC engine was put in an F3 Cooper and Stewart tested it?

The Imp transaxle must have been a tempting base to produce racing gearboxes given the almost ubiquitous Hewland was based on a VW box, however it presumably lacked the strength to take much more power. It is a pity that the 1000cc F3 was for production pushrod engines, it was known as the "screamer" formula and a 998 Imp unit would have outscreamed the lot! Also the "free" 1000cc F2 didn't last long, a Lynton twin cam Imp could have been useful there but was too late on the scene.

Imp022
RallyeCallye

Member no. 8, bought first Imp 1971. Owned 7 or 8 lost count!
daysineuropa
Posts: 51
Joined: Fri Nov 27, 2009 1:16 am
Club Member: Yes
Car Model: Sunbeam Stiletto and Imps
Location: Moniaive n Balcary Bay, D&G
Has thanked: 5 times
Been thanked: 6 times

Re: Jack Night five speed

Post by daysineuropa »

The car and extra gearbox are now in Illinois. The new owner has a business with a long history of restoring British cars. He owned an Imp over twenty years ago and wanted to get another one.

I shared all contact information about club with new owner.

Hopefully he will be along soon to tell us what he really has and share his restoration plans.
68 Stiletto/65 NAS Imp Mk 1
64 NAS Mark 1
67 Imp Mk 2 from Bury St Edmund's!
73 Clan Crusader
doc knutsen
Posts: 31
Joined: Wed Nov 25, 2009 9:17 pm
Club Member: No
Car Model: Sunbeam Imp Bevan replica

Re: Jack Night five speed

Post by doc knutsen »

Rod wrote:Off the top of my head and a quick glance at Doug Nye's Cooper tome.

There was no such thing as a Formula 2 Tyrell. Ken Tyrell ran what were in effect the works Cooper Formula 3 cars in the first year of the 1000cc. pushrod Formula 3; 1964. These cars used a BMC A Series based engine and a Jack Knight Imp based gearbox. Jackie Stewart dominated the season in one and this of course made his name. There was a planned BMC Formula 2 engine for the again new formula (1000cc, again but no other restriction) but nothing came of it, other Formula 2 cars, including the Lotus Stewart drove used a Hewland box. I suppose it is just possible that the prototype BMC engine was put in an F3 Cooper and Stewart tested it?

The Imp transaxle must have been a tempting base to produce racing gearboxes given the almost ubiquitous Hewland was based on a VW box, however it presumably lacked the strength to take much more power. It is a pity that the 1000cc F3 was for production pushrod engines, it was known as the "screamer" formula and a 998 Imp unit would have outscreamed the lot! Also the "free" 1000cc F2 didn't last long, a Lynton twin cam Imp could have been useful there but was too late on the scene.

Imp022
Ken Tyrrell did do F2 after cleaning up in F3 with the Cooper-BMC, but the the chassis were Matras, and they used 1600FVA motive power with Hewland boxes. This was 1967, and the next year Ken provided Cosworth/Ford DFVs for Matra's new F1 chassis. The combination - still with JYS driving - very nearly won the World Championship in their first year. And in 1969 they did.
Ken built his own cars in 1970, but all Tyrrels were F1 cars. And none, of course, had Imp transaxles (thought they used other Jack Knight parts like steering racks)
Post Reply