As per title, would 81.5mm pistons give a 1900cc displacement or less?
Dani_B19 Audi-sports own special child. Joined Nov 9, 2008 Messages 9,675 Reaction score 460 Points 83 Location Barnsley Nov 9, 2012 #1 As per title, would 81.5mm pistons give a 1900cc displacement or less?
<tuffty/> Badger 5 Edition...Its all about the flow... Staff member Moderator Joined Sep 14, 2008 Messages 24,836 Reaction score 6,078 Points 113 Location Wibbleton Website www.tuffty.co.uk Nov 9, 2012 #2 Stickies dude... big turbo info.. 83mm required for 1900 btw.. <tuffty/>
Dani_B19 Audi-sports own special child. Joined Nov 9, 2008 Messages 9,675 Reaction score 460 Points 83 Location Barnsley Nov 9, 2012 #3 Sorry tufty, i should know better, while your hear, what would 81.5mm be, around 1850cc? Would it esn be worth the hassle?
Sorry tufty, i should know better, while your hear, what would 81.5mm be, around 1850cc? Would it esn be worth the hassle?
Andrew@A.L.D May add NOS to 600+bhp S3. Joined Jun 19, 2009 Messages 3,883 Reaction score 619 Points 113 Location Leeds Website www.aldevelopments.com Nov 9, 2012 #4 Engine Displacement Calculator Don't forget you have a 86mm stroke Mine is 95.5mm
Andrew@A.L.D May add NOS to 600+bhp S3. Joined Jun 19, 2009 Messages 3,883 Reaction score 619 Points 113 Location Leeds Website www.aldevelopments.com Nov 9, 2012 #5 Dani_B19 said: what would 81.5mm be, around 1850cc? Click to expand... 1795 cc
<tuffty/> Badger 5 Edition...Its all about the flow... Staff member Moderator Joined Sep 14, 2008 Messages 24,836 Reaction score 6,078 Points 113 Location Wibbleton Website www.tuffty.co.uk Nov 9, 2012 #6 USING THE STOCK 1.8T BLOCK With using the stock 86.4mm crank, increasing bore size will give you the following: 81mm bore = 1781cc- stock displacement 81.5mm bore = 1801cc 82mm bore = 1825cc 82.5mm bore = 1847 (small 1.9L) 83mm bore = 1870cc (1.9) 83.5mm bore = 1892cc With using a 2.0T FSIor 2.0 AEG 92.8mm crank will give you the following: 81mm bore = 1912 81.5mm = 1936 82mm = 1960 82.5mm = 1984 83mm = 2008 83.5mm = 2032 (taken from here... http://www.audi-sport.net/vb/a3-s3-forum-8l-chassis/75685-lots-big-turbo-high-power-info.html, which is in here... http://www.audi-sport.net/vb/a3-s3-...info-stickies-please-read-before-posting.html) <tuffty/>
USING THE STOCK 1.8T BLOCK With using the stock 86.4mm crank, increasing bore size will give you the following: 81mm bore = 1781cc- stock displacement 81.5mm bore = 1801cc 82mm bore = 1825cc 82.5mm bore = 1847 (small 1.9L) 83mm bore = 1870cc (1.9) 83.5mm bore = 1892cc With using a 2.0T FSIor 2.0 AEG 92.8mm crank will give you the following: 81mm bore = 1912 81.5mm = 1936 82mm = 1960 82.5mm = 1984 83mm = 2008 83.5mm = 2032 (taken from here... http://www.audi-sport.net/vb/a3-s3-forum-8l-chassis/75685-lots-big-turbo-high-power-info.html, which is in here... http://www.audi-sport.net/vb/a3-s3-...info-stickies-please-read-before-posting.html) <tuffty/>
Andrew@A.L.D May add NOS to 600+bhp S3. Joined Jun 19, 2009 Messages 3,883 Reaction score 619 Points 113 Location Leeds Website www.aldevelopments.com Nov 9, 2012 #7 Forgot the .4mm on the stroke of the S3 crank
Dani_B19 Audi-sports own special child. Joined Nov 9, 2008 Messages 9,675 Reaction score 460 Points 83 Location Barnsley Nov 9, 2012 #8 So for the extra cost and work its not worth it is it?