gmsclassics wrote:A number of these have been mentioned above, but following has been done to my blue car:
1. Good tyres, but stick to standard size
2. Magnetronic ignition
3. Electric cooling fan with a good in-line controller. Relay power from battery so it continues to run after ignition is off until engine is cooled.
4. Braided brake hoses (you'll need to replace current hoses anyway)
5. Either Trackerjack brakes or good branded pads. You might even consider a tandem conversion if it is an earlier car.
6. Relays for all headlamps
7. Halogen based replacement main beam inner headlamps, then you should be able to see where you are going on a winter evening.
8. Concave glass for wing mirrors
9. Air horns
No. 9, you need to be careful here, as in the UK for post 1/8/73 cars, air horns cannot do anything other than emit a continuous tone.
(Earlier cars may play a tune

)
There is a lot of scope for improving a Sprint (or any 70s car for that matter) using updated technologies/parts.
Further to the above, here are a few more, in no particular order.....
Cooling system: silicone hoses, JCS hose clips, Evans waterless coolant. Volvo 850 (or similar) expansion bottle.
Ignition system: 123 distributor, Magnecor leads
Clutch: stainless steel braided clutch hose, lightweight Saab clutch cover (saves 3kg!), use only the proper RHP release bearing
Propshaft: Ford centre mounting, also an o/d mount can be replaced with a Ford Sierra Type 9 mount
Fuel: replace all fuel lines using proper unleaded compatible hose and 8mm bore Kunifer. Fit an inline filter.
Windscreen: use best quality wipers, replace washer jets (Austin Mini type are a good alternative)
Steering: solid rack mount, Superflex bushes for lower coupling or a forged (not pressed) T2000 UJ instead.
Suspension: Superflex bushes
Wheel nuts: use a steel version instead of the original light alloy.
Trackerjack brakes are an essential, I would not drive a Dolomite without them now. You will need extra brake lights!
There is probably quite a few others,as the saying goes how long is a length of string....?
Ian.