Capitol City Speedway Spring Gobbler Open Modified

My pov from Capitol city speedways annual spring gobbler I was running my 20+hp tilly 236 I hand built I definitely got tired at the end looking at the stars we says huge thanks to everyone wnvolved sorry it’s so late posting

[@jpoletes]

Hey man that looks so intense! What are the specs of your 236 and gearing?(if I can ask) I have a Birel Racing kart that I just zip around my neighborhood with a very light modified Tilly 212 but I need more lol

[@TroySchill95]

Tilly 72mm block standard flat top piston arc -.020 rod 58mm crank dlc coated lifters 308 cam regular moly push rods I forget length I think the shortest they make 32-28 head I ported and polished nothing crazy just cleaned up mainly 55lbs dual valve springs champion rockers on methonal 28mm carb

[@jpoletes]

Interesting so you went with a relatively low/medium lift cam and 1.1 rockers. Is the reason because higher lift may result in a loss of bottom end torque? I heard higher lift is for top end speed and you’re running on oval track and not 1/4 mile stuff like those cats in Compton. Those champion rockers holding up ok with those heavy 55# springs ok?

[@TroySchill95]

It’s a short rod engine so I don’t wanna turn a lot of rpm and the 308 is a good mid range cam I had laying around honestly and I went with 1.1 rocker for less stress on valve train cause I’m running it hard for 10min or more some times rather than 30 seconds and yes I’d rather tq over hp on a kart engine where there’s weight restriction sometimes