Frontal shot of guide, take notice of the bulgy guide boss and the restriction around the sides and towards the roof.
Thanks! still need to work the outer floor corner but mein finger ist ganz wund von all den reibenSieht gut aus
I will be posting exhaust port dimensions along with what areas work to and what to look for regarding short turn and outer port walls. I can't stress enough the importance of working the guide ,guide boss and the guide side radius leading to the roof, these are the key elements. Get those right and the engine will have a wider power range and pull like a freight train.
With a stroke of 2.913" the engine doesn't produce enough pull or piston sweep volume on the intake port for low end toque until higher up the RPMJack,
I've been reading this thread with great interest and admire your work. What I would like to see is an XS that makes more torque at much lower RPM than most builders shoot for. Perhaps something that would work well with a big bang engine. Do you think your port designs could do that?