Ah bro Traxx, there's no such compression ratio as 11.0 because there should be a remaining air volume on the combustion chamber, otherwise, piston is going to hit the cylinder head, hence would make the engine impossible to or even crank up to complete full cycle... Regarding your last question, its kinda confusing... The term squish is the compression of the air volume from the outer side of the cylinder forcing the mixture into the center when the piston is stroked up to the TDC, so obviously the squish band is between the pistons's "TDC" and the remaining air volume to the cyl head on the outerside of the cylinder...traxxas-modifier said:
Regarding the "R series", I havent really noticed any yet... But I saw white/grey Snipers and black as well for the new series... The thing is, when a bike model is upgraded to "R series" it SHOULD mean that there are advance changes on the engine specifically... I have to look onto it as well but normally for T135s', there could be some changes for every series but wont differ much from its predecessor... That is kinda interesting, I will provide feedback in a week or so regarding this bro...pEkz said:
hmm i havent heard about this..pEkz said:
Thanks for the specs, sorry my bad, I got confused but it is 11.0 to/: 1... That explains it all... I though you mean 11 to 0/ 11:0 ratio... Thanks for the pix as well...traxxas-modifier said:hmm i havent heard about this..pEkz said:
hopefully the R means its a new engine upgrade and not
just a marketing gimmick...
@xproject
maybe they have squished the head a little bit.
because its possible to shave off 1mm on stock block
without hitting the piston..
but let us know bro from your connections...
its in the yamaha vietnam website also see below
Good thinking there but it could be reduced vertically not horizontally as the head's squish area should atleast match the piston's... If the compression ratio is really set to 11:1 then I would say that the Deck Height was adjusted to reduce Negative Deck... If the combustion chamber was indeed modified to widen the area then I would assume that the piston is at Positive Deck settings... I cant assure the new T135s' settings until I opened up one or atleast get feedback from friends...chiglai said:
