Newbie to the K platform, I have an S2000 F22C endurance road racing car. Looking to do a K24A2 (2006-2008 TSX) bottom end and K20 Head. Looking for most power and torque with reliability. I have the option to get a K20Z4 RSP-2 head/cams or K20A2 PRB-1 head/cams. Will be replacing rods with Carrillo H rods or Saenz 300M and pistons with Darton sleeve. So my question would be what would be the best combination for a road racing race car. The car has Haltech Elite 2500 running E85. Looking for 300+ WHP. Suggesting from the experts here what would they use. Thanks in advance to all.

 

The TSX head will create more torque in the mid-range and the K20A head will make more peak HP. You decide which is better. You will NOT make 300+ WHP on stock cams from any K head.

 

I'm open do doing everything possible including a Billet head from Endyn or Drag Cartel, with oversized valves, cams, etc. Sleeving block with larger bore, etc. What do you recommend?

 

k24a2 bottom end with K20z3 head with Skunk 2 or Drag Cartel stage 2 cams rbc 50 deg cam gear with a good Skunk Manifold and bigger tb and decent set of headers will be a very stout , dont need rods/pistons.

keep me updated.

I have a road racer project too, but i'm going to keep the combo very simple , i may use the 6sp type S tranny too with a slightly lightened flywheel. sometimes it is not just about the power you make but how fast you make it and where in the power band you want to make it.

 

Look into Larry's products. The bespoke heads make good power.

The Old One - Energy Dynamics

 

Press the easy button and get a 4Piston longblock.