11-29-2022, 10:19 AM
|
#7
|
|
Moderator
Join Date: Oct 2016
Location: Houma, La.
Posts: 11,577
|
Quote:
Originally Posted by Thumper
The ~10:1 OEM setup is working with regular unleaded. I am sure the 74mm piston (or whatever is in the kit) also has the same compression ratio, so will also work with regular unleaded.
I know, I know, we get 70mpg, so why not fill it with premium! But the head porting and advance key will complement the modest displacement increase.
Of course, I don't know when I will find the time to do ANY of this  |
I agree. The high compression piston is not needed. Porting and the timing key will give the best results without hurting the reliability of the engine. Can't wait to see the gains you will get. I love doing this kind of stuff. The work I did on my X22R was fun and the results were crazy. I know you will post everything. 
__________________
2023 Lifan Lycan 250 Chopper
2023 Venom Evader
2022 Lifan KPX250
2020 Kawasaki Vulcan S
2004 Honda ST 1300
2016 Black Hawk 250 (sold)
Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster
2016 Cazador180 XL
2014 Coolster150
JerryHawk250.com
My YouTube Channel
|
|
|
|