HPS4

OIL PRESSURE REGULATOR KIT WITH CHROME KNOB

This kit includes a new oil galery plug with an adjustable knob and a washer which is used as a spring seat in the plug against the relief spring. This makes a playform for the adjuster bolt to adjust the engine oil pressure. Winding the knob in increases pressure, winding it out reduces the pressure.

The standard spring 6K853 is easier to use as its compressed length is shorter and softer for fitment. If you have to much oil pressure, or difficulty in fitting, one coil of the spring ca be cut off at a time. Remember that excessive oil pressure can raise oil temperature and absorbs valuable horsepower.

This kit can only adjust the total amount of oil pressure. That figure should be 50-60 psi at anything over 3000 RPM, any more pressure than that is just heating up the oil and wasting power. You cannot affect the idle speed oil pressure with this kit; whatever pressure you have at idle is governed by internal engine clearances, oil temperature, grade and quality.

Was £15.65 exc vat
Was £18.78 inc vat
Now £13.30 exc vat
Now £15.96 inc vat

In stock

Recommended usage 1 x HPS4 to fit one mini.

Also see:

People also bought
Recommended
This kit contains

Recommended products

Showing 1 to 0 of 0 products

OIL PRESSSURE VALVE AND SPRING

6K853KIT

Now £2.68
(inc VAT) £3.22
Was £3.15
(inc VAT) £3.78

This kit contains

Showing 1 to 0 of 0 products

WASHER 5MM M5 PLAIN WASHER FOR HPS4 ETC

GFK1201

Now £0.05
(inc VAT) £0.06
Was £0.06
(inc VAT) £0.07

NUT PLAIN 1/4" UNF

GFK3211

Now £0.06
(inc VAT) £0.07
Was £0.07
(inc VAT) £0.08

GRILLE BUTTON KNOB ONLY CHROME (SINGLE)

954-BUT

Now £3.87
(inc VAT) £4.64
Was £4.55
(inc VAT) £5.46

People also bought

Showing 1 to 0 of 0 products

GEARBOX TO BLOCK LOCATING DOWEL (HOLLOW)

12H1824

Now £4.08
(inc VAT) £4.90
Was £4.80
(inc VAT) £5.76

TIMING COVER AND FRONT PLATE FITTING KIT

MSSK063

Now £6.80
(inc VAT) £8.16
Was £8.00
(inc VAT) £9.60

SWIFTUNE PERFORMANCE DIE CAST PISTON SET 1275......

C-STN103-40

Now £254.15
(inc VAT) £304.98
Was £299.00
(inc VAT) £358.80

MINI 1275 CAM LINER SET

MS3063

Now £13.39
(inc VAT) £16.07
Was £15.75
(inc VAT) £18.90

MAINS SET 60 OVERSIZE PRE A PLUS/EARLY A+ 127......

AEM91120-60

Now £22.31
(inc VAT) £26.77
Was £26.25
(inc VAT) £31.50

CRANK THRUST WASHER SET +0.003" 1275

ACL2136-003

Now £9.56
(inc VAT) £11.47
Was £11.25
(inc VAT) £13.50

MINI SPARES COMBINED BLOCK/GEARBOX GASKET AND......

AJM100MS

Now £22.10
(inc VAT) £26.52
Was £26.00
(inc VAT) £31.20

MAINS +10 1275CC A PLUS ONLY ACL RACE

C-AEM91886-10

Now £70.76
(inc VAT) £84.91
Was £78.62
(inc VAT) £94.34

MAINS STANDARD SIZE 1275CC A PLUS ONLY ACL RA......

C-AEM91886-00

Now £70.76
(inc VAT) £84.91
Was £78.62
(inc VAT) £94.34

BIG ENDS +10 1300 EXCEPT COOPER S ACL RACE

C-AEB91306-10

Now £64.52
(inc VAT) £77.42
Was £71.69
(inc VAT) £86.03

BIG ENDS SET 998/1098/970/1071/ COOPER "S" AC......

C-AEB572-00

Now £59.64
(inc VAT) £71.57
Was £66.27
(inc VAT) £79.52

TIMING CHAIN DUPLEX LIMITED STRETCH TYPE

2H4905EVO

Now £16.69
(inc VAT) £20.03
Was £19.64
(inc VAT) £23.57

TIMING CHAIN SINGLE ROW SPECIAL QUALITY

3H2127EVO

Now £18.74
(inc VAT) £22.49
Was £22.05
(inc VAT) £26.46

8° OFFSET WOODRUFF KEY

WKN8OSET