Venom Posted February 14, 2017 Share Posted February 14, 2017 What is the compression ( more or less) in 1216cc with hayabusa 81 pistons ? Is there a sense tu install them without turbo ( or NOS) ? Quote Link to comment
yantosh Posted February 14, 2017 Share Posted February 14, 2017 about 8.5:1 I think, no fun without turbo 1 Quote Link to comment
Venom Posted February 14, 2017 Author Share Posted February 14, 2017 13 minutes ago, yantosh said: about 8.5:1 I think, no fun without turbo thank you. Im going to instal RS Minuni 30 and Cam motion cams.Plan was intal hayabusa pistons but looks like there is no sense. Think will instal RS, Cams and do some head works .Looks like it will be better solution ... Quote Link to comment
R1guy Posted February 14, 2017 Share Posted February 14, 2017 Won't rs30 be too small? 1 Quote Link to comment
Venom Posted February 14, 2017 Author Share Posted February 14, 2017 11 minutes ago, R1guy said: Won't rs30 be too small? ups...sorry... I mean RS 38 of course Quote Link to comment
Diebythereaper Posted February 14, 2017 Share Posted February 14, 2017 Busa pistons are great if going turbo and want a cheap piston option but I still prefer to get the proper shaped piston for the application - dished for turbo or raised/crowned for aspirated, Bike will fly with RS 38's but will guzzle fuel as well so be prepared 1 Quote Link to comment
Venom Posted February 15, 2017 Author Share Posted February 15, 2017 23 hours ago, Diebythereaper said: Busa pistons are great if going turbo and want a cheap piston option but I still prefer to get the proper shaped piston for the application - dished for turbo or raised/crowned for aspirated, Bike will fly with RS 38's but will guzzle fuel as well so be prepared If bike will fly...its fine with me . Let him guzzle Quote Link to comment
no class Posted February 15, 2017 Share Posted February 15, 2017 why RS 38's ??? had these in the past and hated them .....crappy slide design and always seem run on after you shut the throttle down....pain in the ass to tune also . If you can afford a few extra dollars .....TMR's are awesome .....as well as the Keihin FCR's. Quote Link to comment
Gixer1460 Posted February 16, 2017 Share Posted February 16, 2017 Few extra $$$ - yeah like double'ish! I got RS40's and some FCR41's - both work good on my big GSXR but the RS's do rattle a bit (which is oldskool init!) 2 Quote Link to comment
Venom Posted February 16, 2017 Author Share Posted February 16, 2017 "FEW extra dollars"???? Do you have some TMR FEW dollars much expensive RS ? :-) Quote Link to comment
Venom Posted February 16, 2017 Author Share Posted February 16, 2017 6 hours ago, Gixer1460 said: Few extra $$$ - yeah like double'ish! I got RS40's and some FCR41's - both work good on my big GSXR but the RS's do rattle a bit (which is oldskool init!) Gixer1460 do you have a problems with slides in your RS carbs when you shut the throttle down ? Quote Link to comment
Gixer1460 Posted February 16, 2017 Share Posted February 16, 2017 Nope! I've used two cable and single cable throttles and noticed no difference but i've heard they can get sticky if old! 1 Quote Link to comment
no class Posted February 16, 2017 Share Posted February 16, 2017 Gentlemen..... I wish you much success and all the best with your project / projects . 1 Quote Link to comment
ratboy1127 Posted February 16, 2017 Share Posted February 16, 2017 Fcr's everything. Quote Link to comment
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