MARTINS XJ220.
Posted: Wed Jan 27, 2016 6:46 pm
Hi all this is my entry to this fine GB .
I have had this in the stash for a long time was going to save this for the later GB, but i found something else for that now.
here are the sprue shots.
AND the disstructions .
WILL be using rattle cans for this one for a change
Made a start on the body shell first thinkgo over it and mark over the seam lines , makes it easy to see when sanding them back , when the lines
gone you have got it , leaving the sprue attached in the roof opening for now, to keep some strength in it .
Put some of the engine parts together , the rest cut out ready for primer .
Engine and transmission.
Jaguar and engine designer Walter Hassan had previously created a 48-valve variant of their V12 engine specifically for motorsport use. It featured a double overhead camshaft layout with four valves per cylinder, compared with the single overhead camshaft and two valves per cylinder of the production engine, which was used in the Jaguar XJ and Jaguar XJS models at the time.[10][11][16][17]
TWR and Cosworth had manufactured a number of these racing V12 engines during the 1980s and they had been raced competitively, with a 7-litre version of this engine featuring in the Le Mans winning Silk Cut Jaguar XJR-9. Five of these engines still existed, all of which were fitted with dry sump lubrication. These engines were chosen and considered to be especially useful as the dry sump would lower the vehicle's centre of gravity. The displacement of the V12 was set at 6.2 litres (6222 cc) for the XJ220.[17][18] The engine fitted to the XJ220 concept had titanium connecting rods.[10]
Jaguar had little experience with four-wheel drive systems at the time, having previously only produced rear-wheel drive cars. Randle approached Tony Rolt's company, FF Developments to design the transmission and four-wheel drive system for the XJ220, with Rolt's son Stuart running the project. Tony Rolt was the Technical Director of Ferguson Research, where he was heavily involved in the design of the four-wheel drive system used in the Jensen FF, the first sports car to be fitted with such a transmission.[19][20] Tony Rolt also had a long involvement with Jaguar, winning the 1953 24 Hours of Le Mans with the factory works team driving the Jaguar C-Type.[14][18][20]
The mid-engine complicated the design of the four-wheel drive system, and an innovative solution was needed to get drive from the rear of the engine to the front wheels. The chosen design took the front-wheel drive from the central differential on the rear transaxle and sent it through the V in the centre of the engine using a quill drive, before joining an inverted differential.[14] The clutch was a twin-plate unit designed by AP Racing.[11]
thanks for coming
I have had this in the stash for a long time was going to save this for the later GB, but i found something else for that now.
here are the sprue shots.
AND the disstructions .
WILL be using rattle cans for this one for a change
Made a start on the body shell first thinkgo over it and mark over the seam lines , makes it easy to see when sanding them back , when the lines
gone you have got it , leaving the sprue attached in the roof opening for now, to keep some strength in it .
Put some of the engine parts together , the rest cut out ready for primer .
Engine and transmission.
Jaguar and engine designer Walter Hassan had previously created a 48-valve variant of their V12 engine specifically for motorsport use. It featured a double overhead camshaft layout with four valves per cylinder, compared with the single overhead camshaft and two valves per cylinder of the production engine, which was used in the Jaguar XJ and Jaguar XJS models at the time.[10][11][16][17]
TWR and Cosworth had manufactured a number of these racing V12 engines during the 1980s and they had been raced competitively, with a 7-litre version of this engine featuring in the Le Mans winning Silk Cut Jaguar XJR-9. Five of these engines still existed, all of which were fitted with dry sump lubrication. These engines were chosen and considered to be especially useful as the dry sump would lower the vehicle's centre of gravity. The displacement of the V12 was set at 6.2 litres (6222 cc) for the XJ220.[17][18] The engine fitted to the XJ220 concept had titanium connecting rods.[10]
Jaguar had little experience with four-wheel drive systems at the time, having previously only produced rear-wheel drive cars. Randle approached Tony Rolt's company, FF Developments to design the transmission and four-wheel drive system for the XJ220, with Rolt's son Stuart running the project. Tony Rolt was the Technical Director of Ferguson Research, where he was heavily involved in the design of the four-wheel drive system used in the Jensen FF, the first sports car to be fitted with such a transmission.[19][20] Tony Rolt also had a long involvement with Jaguar, winning the 1953 24 Hours of Le Mans with the factory works team driving the Jaguar C-Type.[14][18][20]
The mid-engine complicated the design of the four-wheel drive system, and an innovative solution was needed to get drive from the rear of the engine to the front wheels. The chosen design took the front-wheel drive from the central differential on the rear transaxle and sent it through the V in the centre of the engine using a quill drive, before joining an inverted differential.[14] The clutch was a twin-plate unit designed by AP Racing.[11]
thanks for coming
