Manfred's TR1. Discussion Boards - Higher Compression Pistons

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12.05.25 at 01:34:40

Manfred's TR1. Discussion Boards › Old TR1 Discussion Boards (read only) › Discussion Board 2005
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Higher Compression Pistons (Read 2941 times)

Garry Roberts(Guest) Ex Member	Higher Compression Pistons 27.06.05 at 00:29:00 I have a 980 Xv and a "special" with 1100 Virago motor in "chain drive" frame. I would like to find higher compression pistons for these motors. Standard bore in both is 95mm. Can anyony help? Garry
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Lars Sandström(Guest) Ex Member	Higher Compression Pistons Reply #1 - 01.07.05 at 08:00:00 I think that some use pistons from some Porsche engine! I don't know if there are pistons specially made for XV980-1100 engines. A trick is to take off 1 mm from the cylinder base to get little more compression.
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Roy Griffiths(Guest) Ex Member	Higher Compression Pistons Reply #2 - 14.08.05 at 19:46:00 The best way to increase compression on a 981 is to weld up the combustion chambers to look like a 750.Improves squish and burn if you do something about the porting aswell makes big difference on how much power these make.
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Manfred's TR1. Discussion Boards › Old TR1 Discussion Boards (read only) › Discussion Board 2005
(Moderator: Manfred)