Originally Posted by mini27:
still waiting on some one to tell me how your going to check internal engine parts at the track as part of tech. so you pull the pan, see my rods are aftermarket, how do you know if there light weight after market or the stronger rods? how are you going to check for aftermarket pistons if there stock dome, just lighter?
stock bore stock stroke and ports of the head is all you can check. stock bore stock stroke rule and go race.
OK***** They make this little thing like the doctors use when they want look down one of your holes, it's called a bore scope and believe me when I say in some holes it really hurts.
My idea tec inspection would be:
1. Draw a pill to see if you get around the world or simple bore stroke and fuel check.
2. If you loose and win the around the world treatment. here is what you would get.
3. The racer and car would be invited into an air conditioned trailer with plastic wind curtains, the car would be placed on stands.
4. The bore and stroke would be made in the usual way.
5.All 4 plugs would be removed as well as the valve cover and right side engine cover.
6. Two pistons would be turned to bottom dead center, tecs choice.
& Insert bore scope down one plug hole and observe piston crown, a stock piston will look nothing like a race piston, (see example of stock piston on page 3 of this post). Those two lines running across the piston get a lot closer to the center hole on a high compression piston, further apart on a low compression piston. Stand out like a Babby Ruth in a punch bowl to someone who looks at them all the time.
7. Put the angle viewer on the bore scope and by looking down different plug holes you can observe the valves and shape of the valves, same thing stock valves and Ferra valves just don't look the same. Tec make decision on weather more tear down is necessary.
8. Measure cam heal and toe with mike that should give you good idea about cam lift, Horsepower is made with lift and valve size.
9. Take the bore scope and insert it in the holes inside the engine side cover from this vantage point you can observe rods and crank counter weights, hard to hide carrillo h beam rods and shiny machined counter weights.
10. The tec can check the Methanol at the track, hard to hide stuff in there, but gasoline has different weight from station to station, might want to send it off. There is a lot of horsepower \one can put inside gasoline and not get caught with.
Honest Dad himself

