Tuning Data .. BASIC SETTINGS
Number 1 cylinder is at radiator end
Firing order. All 1 3 4 2 distributor rotates anticlockwise viewed from front
Rotor button usually points to no.1 cylinder at 2 o,clock on compression stroke of no.1 cyl
Points Setting./ Dwell angle Lucas .015” gap Dwell 60 +- 3 deg
Spark Plug Gap NGK bp5es 99-1100 std bp6es 1275 std .025” points .030” +electronic
Colder Spark Plugs may be advised with higher compressions and special fuels
Rocker (tappet) clearance hot .012” all except Cooper S and most hot cams .015”
Check cam manufacturers specs if in doubt
Idle co reading 3%
Timing settings These vary considerably with some variables being engine capacity,
compression ratios, fuel octane available, distributor type and advance curve.
Factory Settings 848cc TDC (Top Dead Centre)
997cc 7 deg BTDC hi octane
998cc Deluxe 3-5 deg Cooper 5-7 deg
998cc late clubman up to 10 deg BTDC
970cc 12 deg BTDC
1071cc 3 deg BTDC
1098cc 3-5 deg BTDC
1275cc 2 deg BTDC
Some of the current fuels may create pinking or detonation even at manufacturers specs
We recommend the total timing on 850-1100 not to exceed 32 degrees
We recommend total timing on 1275 variants not to exceed 28-30 degrees
In cases where not much data is known on hotter engines, conservative settings are safer,
But if you need performance optimizing then TUNING by MINISPLUS may be the best answer
A POINT WORTH NOTING IS THAT HIGHER OCTANE FUELS EVAPORATE
THE HIGH POINTS OF THEIR OCTANE OVER A SHORT PERIOD AND IN SIMPLE
TERMS BECOME LIKE FLAT LEMONADE-- NOT GOOD FOR A PERFORMANCE
ENGINE ... BUY PREMIUM ULP FRESH AND FROM A HIGH USAGE
SERVICE STATION
OUR EXPERIENCES HAVE SHOWN PREMIUM ULP TO BE A VERY
GOOD ALTERNATIVE TO LEADED FUELS
Number 1 cylinder is at radiator end
Firing order. All 1 3 4 2 distributor rotates anticlockwise viewed from front
Rotor button usually points to no.1 cylinder at 2 o,clock on compression stroke of no.1 cyl
Points Setting./ Dwell angle Lucas .015” gap Dwell 60 +- 3 deg
Spark Plug Gap NGK bp5es 99-1100 std bp6es 1275 std .025” points .030” +electronic
Colder Spark Plugs may be advised with higher compressions and special fuels
Rocker (tappet) clearance hot .012” all except Cooper S and most hot cams .015”
Check cam manufacturers specs if in doubt
Idle co reading 3%
Timing settings These vary considerably with some variables being engine capacity,
compression ratios, fuel octane available, distributor type and advance curve.
Factory Settings 848cc TDC (Top Dead Centre)
997cc 7 deg BTDC hi octane
998cc Deluxe 3-5 deg Cooper 5-7 deg
998cc late clubman up to 10 deg BTDC
970cc 12 deg BTDC
1071cc 3 deg BTDC
1098cc 3-5 deg BTDC
1275cc 2 deg BTDC
Some of the current fuels may create pinking or detonation even at manufacturers specs
We recommend the total timing on 850-1100 not to exceed 32 degrees
We recommend total timing on 1275 variants not to exceed 28-30 degrees
In cases where not much data is known on hotter engines, conservative settings are safer,
But if you need performance optimizing then TUNING by MINISPLUS may be the best answer
A POINT WORTH NOTING IS THAT HIGHER OCTANE FUELS EVAPORATE
THE HIGH POINTS OF THEIR OCTANE OVER A SHORT PERIOD AND IN SIMPLE
TERMS BECOME LIKE FLAT LEMONADE-- NOT GOOD FOR A PERFORMANCE
ENGINE ... BUY PREMIUM ULP FRESH AND FROM A HIGH USAGE
SERVICE STATION
OUR EXPERIENCES HAVE SHOWN PREMIUM ULP TO BE A VERY
GOOD ALTERNATIVE TO LEADED FUELS