Flathead

Your wallet will decide that .
When i felt like I needed another one , local racing
Or midseason .
Series racing kinda same thing some did it every other race .
Turn around Time is another issue .
Some use leak down , valve seal probably goes first .
 
That depends on the level of your competition, parts used, and your maintenance.
Clean oil and filters go a long way with these engines.
Jr1 & Jr2 are low enough rpm that the valve train doesn't take a beating like Jr3 and unrestricted does.
It's not uncommon for a small plate engine to go 15 races before needing rebuilt.
I recommend 10-12 race days or whenever the engine seems down in power.
They really start losing power after race 5 or 6 and it's all down hill after that. Primarily valve seal and top ring seal.
A lot of times, an inexpensive rebuild early in the engine's life cycle prevents a more expensive rebuild later. Simple rings, springs, and gaskets before things trail off too bad in performance.
The old story of the plumber with leaky pipes....we had 23 race days on one of our sons' purple plate engines before it was torn down in tech after winning. It's not what I would have wanted, but when we're busy, customers come first. Besides, it was still competitive. :)


-----
🏁Thanks and God bless,
Brian Carlson
Carlson Racing Engines
Vector Cutz
www.CarlsonMotorsports.com
Carlson Motorsports on Facebook
32 years of service to the karting industry ~ 1Cor 9:24
Linden, IN
765-339-4407
bcarlson@CarlsonMotorsports.com
 
You must log in or register to reply here.
Back
Top