Engine choice, 230lbs 2 stroke smoke, Newbie, pp vs reed vs rotory 100,115,125,135cc

Yeti Racing

New member
Based on all the post I've read, you're the man to ask JICA questions. I'm 230 lbs. and wanna start with a durable, reliable engine without breaking the bank. I'm considering a Parilla PV92 for purchase. Can you offer any feeback on the Parilla PV92 or your suggestions/opinions on other engines? - gmancamp73

I'm embarrassingly & humbly flattered Thank you . You omitted whether it was UAS, enduro, or sprint but here goes. INMO - for best value CLASS stock competitive racing u can't beat a 14 - 19hp Yamaha if u weigh UNDER 150#. U DON"T. For best value RWYB/Outlaw competitive racing u can't beat most any (OOTB stock- out of the box) JICA 24hp (official class discontinued) 100cc UNDER 175#. You can't beat either one for value (Both will hammer nails all day, all season, & all year long w/o re-build, given appropriate maintenance/care) for practice 2 stroke racing skill sharpening practice engines, bc (hypothetically w/ all things being equal) turning lower lap times than your competitor utilizing substantially less HP should translate to you being the more efficient driver, notwithstanding race competition traffic/passing. skills & compensating for in-race mechanical set-backs) Both are $250 - $400 (used) simple piston ports & durable as hell & HP can be increased by 5 - 30% for an additional approximate $75/hp w/ your best value HP increase derived from fuel type, pipe, and carbe, respectively in descending order (notwithstanding, many work matched in conjunction with each other) with a pp 100cc max HP ceiling of approx 35hp. That being said, IMHO - at over 200#, for race competitive purposes, you shouldn't consider any engine under 32hp (i.e. stock late model triple collision port 100cc reed/rotary) w/ same HP increase parameters as aforementioned with a 100cc reed/rotary max HP ceiling of approx 44hp. JMHO - At 230#, you should consider a min 36hp 115cc reed/rotary, but if I had my druthers, & value for the long run, I'd like to see you acquire a stock 34hp a/c (air-cooled) 125cc -135cc reed/rotary bc it would give u competitive HP headroom (62hp max) to grow (notwithstanding the option of a dual 100cc engine rig down the road). *** Note ***All the above is 2 smoke a/c engine focused opinion, as I don't favor water cooled or 4 stroke at this time. - JMHO * for Any engines/parts/rebuilds/custom made parts/machine work/HP development PM me anytime and I'll give my very best to further your karting experience . Thank you for your trust & consideration.

**JMHO - In the interest of goodwill, to eliminate redundant PM's, and for all interested parties, I believe posting this for general discussion would be of value for the karting community.
 
I am running a set of dual JICA swift motors with open ports Tillotson 360a carbs pumping alky. Estimated power is around 62hp. These are great motors to be a piston port. Run a good oil keep the carb fresh and a clean filter on it and these motors will run strong for you. Parts are available through TS Racing and Lynn Haddock. TS racing priced pistons for $135 not Lynn had them for $35. I would use TS as a last resort on parts IMO.
 
following this guide line will get you going quickly.
Unfortunatly we are under powered by this formula by a lot. which I knew.
Where is this pile of jica motors. I could use 1 or 2
 
We love our Sudams, run great, last a lot longer than some others. Great for smaller tracks but might get beat by some of the newer M'cycle engine karts on bigger tracks. Once you get the engine working well, it's all set-up, tires and preps.
 
following this guide line will get you going quickly.
Unfortunatly we are under powered by this formula by a lot. which I knew.
Where is this pile of jica motors. I could use 1 or 2

flattop1 I have a few NOS listed in forsale section . PM me
I'll echo Jack's concerns/advise . The JICA is a hell of a pp & durable and the class is discontinued. It's a excellent outlaw & UAS weight break pp. Augusto has sung their praises many times and I echo this
 
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The only way to go PK 250

92hp 217cc alky dual 2 smoke Open rig vs Pk 250 Open all other things being equal (jockey, kart , ideal setups, tires, j/s, ideal gearing, track conditions, track etc..) 1/10th ,1/5th , 1/4 mile dirt oval who wins (turns the low lap ET ? My money is on the dual - JMHO
 
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Decided to go with a Rotax reed valve 116cc. Found an awesome deal with buller jackshaft and 3 disk clutch. Any input on this engine. Its a four port methanol engine. Just rebuilt. Gonna use it as my starter to learn 2 cycle engine.
 
Jack will get the most HP he can out of the engine, but knowing his racing for a long time,it was NOT set on kill bet it didn't need much even if he tore it down. Thats A Fact as I know it!!!!
 
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