December 17, 2022

Often times the subject of pricing will come up with customers. Someone will ask, “why aren’t you as cheap as,,,,?”…

December 16, 2024

For 2025 NKA has chosen to align itself with AKRA on the cylinder head rules. AKRA has also decided to…

December 3, 2023

We often get calls asking if an engine is in stock and ready to ship. Thanks to the Good Lord…

October 29, 2021

Cylinder bore geometry is an often overlooked part of building small racing engines. Roundness, taper, surface finish, and cross hatch…

May 29, 2021

My Recommended Torque Specs Clone/ Honda/Predator Engines Head 23 Ft-Lbs Crankcase Cover 150 In-Lbs Connecting Rod- Stock 150 in-lbs, Billet…

January 31, 2021

Today, the racing kart engine world is loaded with lots of names, decals, and facebook pages. Some look really impressive,…

June 21, 2020

A subject I've covered before, but worth revisiting is the effects of over application of air filter oil. These engines…

May 10, 2020

Welcome to the all new JRPW Racing website and web store. This site has been in the development stage for…

August 2, 2015

December 1, 2014