building a 5 liter 2 cylinder?

Do you have a P-51 mustang collection getting started in the back of the garage Guy?

Edited June 30, 201311 yr by Zedyone_kenobi

That piston is going in an 800 cubic inch two cylinder stroker for a tractor pull motor!

Tractor engine huh?

Just a little something to pull a mower around, eh?

It's not mine Zedy, but I believe it would have enough torque to pull the cape off of Superman.

I've been busy building my engine. The race is in a little over a week. Here are a few pics of the timing with the decked head and no tower shims. It's a little too pretty for a ChumpCar engine, but it should run pretty well.

Nice damper Jeff......

I thought you'd like that Guy! I have your other one on my L26 race engine. Thanks again for them!

How did you know where and how much to mount the offset timing bushing?

I used a degree wheel and the cam card. It's a fairly slow process, but it gets it exactly right.

• Find #1 TDC and set degree wheel to TDC using a piston stop.
  
• Measure 0.050" #1 exhaust valve open and compare to cam card
  
• Measure 0.050" #1 exhaust valve close and compare to cam card
  
• Install offset bushing that moves cam the right direction to match cam card
  
• Repeat until valve timing matches cam card
  
• 
  

Gotcha.....Need a good dial indicator.....I'm looking forward to hearing how she runs with your new set-up.

I really like my Mitutoyo digital dial indicator, but it wasn't cheap. Spend the money to get a good magnetic holder as well. My Craftsman one is serviceable, but I wish I would have bought a better one. You will also need to make a piston stop. The easiest way is to break the ceramic out of a spark plug and insert a long bolt with the end rounded. Mine was made about 20 years ago in 15 minutes, so it's really crappy, but it does work fine. Someday, I will redo it by welding the bolt to the spark plug rather than rely on all of the washers and the nut. The degree wheel is actually made of wood by downloading a jpg of a degree wheel and cutting/etching it on a CNC laser. My racing teammate made it at the Tech Shop which is a local shop that is run like a health club with monthly membership dues.

Do an internet search on how to use a degree wheel to get the full instructions.

I will give a complete review after my race on the 13th.

I am also adding a flex pipe to the exhaust right behind the header collector to take the strain off the manifold studs. Once the engine and exhaust are installed, I'll take more pics. I'm using the slip together MSA 2-1/2" exhaust system.