Compression test

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Compression test values for reference.

"Compression mods" includes any work that might have altered the stock compression ratio, including custom pistons or rods, head skim or spacers/shims.

user year model age mileage warm/cold wet/dry pressures strokes tester compression mods
ashm 1991 SE Turbo 18 59k warm dry 170/170/165/165 4/4/5/5 Gunsons none
Monty 1990 SE Turbo 19 84k warm dry 160/150/155/160 5 to 6 Screwfix Throttle fully open, Head skimmed
Dico 1993 SE Turbo 16 47k warm dry 160/155/155/160 5 to 6 Throttle fully open
Rambo 160/160/160/160
chrishewett 165/165/165/165
RichieP 140/140/140/140
andyhaworth 150/150/150/150
MikeyDude cold dry 158/153/145/150
Mike_H 1991 SE Turbo 18 40000 warm dry 185/180/175/175 5 Gunsons Throttle open
Specky 1991 SE Turbo 18 75000 warm dry 148/149/150/148 Gunsons
Specky 1989 NA 21 80000 cold dry 150/150/150/150 Gunsons Alarm bells low pressure
Manou 1993 SE Turbo 21 64000 cold dry 135/128/122/130
ashm 1991 SE Turbo 19 70k warm dry 165/170/170/165 6/6/6/6 Gunsons none
ajax317 1992 SE Turbo 19 56k cold dry 160/160/160/155 6/6/6/6 Laser Throttle opened, head skimmed


Monty: Test done with engine up to running temp, Throttle fully open, all spark plugs removed. Engine turned over approx 6 revolutions per each test. Used compression tester from Screwfix http://www.screwfix.com/prods/16856/Van-Car-Accessories/Mechanics-Tools/Compression-Tester?cm_mmc=GoogleBase-_-Datafeed-_-Van%20and%20Car%20Accessories-_-Compression%20Tester#


Monty.jpg

Ajax317: the Screwfix compression tester is a Laser 2516, I just recognised the picture as the same as mine.