Don Terrill’s Speed-Talk

It's crucial to address these common machining mistakes with offset valve seats, especially given the impact nonperformance.Let's break down each problem and discuss how to approach offset valve seat machining correctly:Problem 1: Using Standard Valve Job Techniques When dealing with cylinder heads ...

good luck, where are you going to get chemicals, fixtures and diamond hone to size the bore

Why don’t you get set used carbs

It’s an hour work time. And 20 minutes programming time you said heads we’re clean

the cost for Subaru head $180 for the pair

I’m setting up a Newen machine in the Philippines. It’s one amazing place. The engines are scooters type. The valves are 24 mm intakes the exhaust are 22mm. Shop has over 100 employees has more equipment than most NASCAR shops. A full blow scooter goes 130 mph. These are serious race scooters. The t...

Why would you waste your time doing that. Wouldn’t you think otherwise

I’m very lucky in my job to see different head designs and how manufacturers design ways to enhance air flow. Being in the motorcycle industry I see many profile designs. Offset seats are becoming the standard. And now I’m seeing directional offset valve seats. Kawasaki is use a cloverleaf design va...

I have questions for you guys can you tell me how to machine offset seats offset directional seats clover leaf valve seats. Love to hear how you would use a form tool machine to cut them get chance look at the new Lamborghini cylinder head and intake port. It’s interesting all the NASCAR and nhra an...

Interesting. I guess just grind the seats in. You guys know what your doing

I’m in the Philippines at moment setting up a machine for the scooter market. I was shocked how many scooters there are. Heading to Australia in February for the month.

You know what you guys crack me up

You know what you guys crack me up

On intake we offset seat 1mm and have 4 angle breaks on long side of seat contact is 1mm on exhaust .6mm offset with radius on long side 69 hp no valve or seat recession