help reshaping camshaft

[binetto]

good day,I am craftsman from audine (I have a precision mechanical workshop),I would have to propose a camshaft for my racing engine that I built,you can recommend that book buy to explain well how to design and reshape the opening curves, lifted and closing of the camshaft,I have already tried of trees on the market but do not take turns to the engine,can you help me?
I forgot, the engine I modified and built and the engine of my avatar.

 

[peloritano]

These things are not explained in books.... reshaping camshafts is a very experimental thing and formulas can help you little.... .
formulas can give an idea on the road to take but for a perfect choice of the profile of the camshafts you need a lot of porves to the flowmeter and a lot of tests..... .

 

[Fulvio Romano]

to start you could calculate advances and delays, but you do in design, you can't think of reverse engineering for something like that.

Maybe you should build a double camshaft, so you can put the engine on the test bench and make plans quoted with the engine characteristics according to the cam corners. then, given to the hands, try to desumerate a great place.

the excellent global you will never find it, unless you are very lucky. . .

 

[binetto]

Hi, the problem is that it should get to 12000 laps and with the trees that are on the market stops at 6200 laps, and then I want to learn a lot more' on the 4 times, my first motor 2 times that I prepared has won for 3 years in a row the regional in the lazio, but sincerely my love is for the 4 times, thank you for having responded.

 

[Fulvio Romano]

Yes, but love is not enough...
a two time is "prepared" easily, because at most pollute a little too much.. .
a four-stroke has no exhaust lights, if you plug it before time, throw energy and lift the valves.
then, 6200 turns is the speed to exhaust shaft? This is not how you do the tests at the counter, you have to track at least one part of the feature, otherwise the maximum number of turns is not a parameter that tells you much about the engine.

 

[binetto]

I don't know if it's so simple, it's enough to miss the beams and you find the last one in the row, the drawing of the dome and you find yourself last, the volume of the carter and you find yourself last, the carburetion and you don't find yourself last but at the pits with the engine cripped, coming back to the 4 times, it was tried on the track, it came down immediately