Understanding Camshafts – Part 3 (Cam Design)

Now that Steve has run through lobe shapes and cam cores, you're ready to put it all together in order to understand what goes into designing a custom camshaft, and the reasons behind certain decisions.

[mwhitelaw]

Good to see this dude spreading the wealth of knowledge he has for the masses

[JohnPark-rz]

thank you very much Steve! it is very much help for my outbord motor cam profile design,
and better understanding of cam profile, good luck! thank you again. from Korea.

[doomman]

When I was a teen buying my first cam for my driver I was thumbing through the Crane cams catalog and the journeyman I was doing my apprenticeship under told me pick the cam you want. Drop down two or three lines smaller in that book and buy it. I laughed, but honestly he was right, I said what cam would you put in it, and it was 2 under it and what I bought later to replace the one I had bought. 😂

[TheJohndeere]

I know you dont normally work on diesels but we have a diesel pulling tractor that is 529 inches.. We have to run a small turbo with 2.750 compessor wheel. We have been doing well but we have to gear it really fast. It has good power and torque but it just will not run more than about 3200 rpm. It has a really flat torque curve and has almost the same power from 3200 down to about 2500 rpm. It makes well over 2, 300 ft lbs of torque. What could we change to make it run more rpm and hp even if we do loose a little torque. Do we need More camshaft duration or more lobe sep or more head flow. It makes about 73 psi boost.clear down to around 2, 000 rpm. It makes about 75 psi exhaust pressure when pulled down

[PeggyParrow]

Yeah, But, the cam doctor can tell you at the least the acceleration of the lobe, along with other things, im not telling all, but you can keep a history of each cam and compare one verses the other, and begin to maximize what you need for your combination on the next cam you have ground !

[BustedWalletGarage]

My grandfather has an Ford flathead camshaft from the 1950’s and only description is “ 3/4 race “

[grantstricklin]

1968 Camaro ladder bar all fiberglass
N/A 408 sbc 14.1 compression, brodix track 1 ported 320cfm, solid roller cam, victor Jr intake ported, Ron's terminator alcohol injected, 3, 000lb power glide, 513 gear 31-14.50-15 tire, 8" PTC 5500, 6800-7000rpm cross finish line 1/8 mile.
what cam recommend? Can't get a good answer from any company or would you grind me one?

[regsmith]

Suggestion Box: Steve, what’s going homie. I can’t really see that desktop 🖥 screen. Can you use the dyno screen or something else?

[regsmith]

I understood some of it. I did get it on not using big cams with power adders. Keep bringing it. Repetition!!

[Themusicbiz]

Can’t rly see the cam doctor, or the screen… I should start on the first video, but as a suggestion: it would be helpful to do a basic explanation of every motor part does in unison.

[johnnienitro]

Shut race with your Buds Steve. All the Best!

[BKMDano]

7- 23 and I did call. Pressed the number for parts. Steve said we are only building motors don't have time to sell parts. Guess I Shoul have called last year😢