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Manfred's TR1. Discussion Boards
https://www.tr1.de/cgi-bin/yabb2/YaBB.pl Old TR1 Discussion Boards (read only) >> Discussion Board 2005 >> Higher Compression Pistons https://www.tr1.de/cgi-bin/yabb2/YaBB.pl?num=1119781740 Message started by Garry Roberts(Guest) on 27.06.05 at 00:29:00 |
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Title: Higher Compression Pistons Post by Garry Roberts(Guest) on 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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Title: Higher Compression Pistons Post by Lars Sandström(Guest) on 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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Title: Higher Compression Pistons Post by Roy Griffiths(Guest) on 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. |