Cams Specs | Learn About Cam Lobe, Cam Lift and Cam Duration

[gordysuggs]

yes sir i already have it...have the ZDDP the lucas cam lube tore the motor down today just waiting on the cam...should be here wed-thurs...thanks again this was my first time dealing with summit and so far its been awesome

[emofilipof]

hi. when the camshafts are off the head, how to undrstand which camshaft is front ( suckin air valves ), and which one is for exhausting valves( the rear one) at dohc.

[rodneybailey]

Thanks for the video. This was very helpful

[mbchev]

A tight LSA doesn't necessarily mean the engine will have a rough idle or low vacuum. Case in point is Crane's #2020 cam which is 194/204 with a 104 LSA.  It makes for a smooth idle, around 20" vacuum, and lots of low-mid RPM torque in a 350 with around 8:1 compression.  You can't gauge how a cam's  LSA will affect idle quality and vacuum without knowing its duration.  Turns out a 212/218 cam with 112 LSA has the same amount of overlap, so it's not going to make more vacuum or idle better just because it has a 112 LSA.

[SummitRacing]

So you turned a 331 into a 355? – nice job!
Both cam packages are hydraulic flat tappet kits. I like this pattern for a daily driver. The obvious cam specs are the same; I cannot confirm that the actual valve timing events are identical. Both will need the proper break-in procedure. Both will need a ZDDP type oil or additive for the break-in and then for the life of the build – yes with every oil change.

[jsdsong]

Hello, I use BMW M50B20 Non-Vanos version. I want to increase torque in the low revs, but can accept to reduce power at high revs. So I thought that if I change the intake cam. The original specification was like this.

Intake: 240º (9.7mm); open: 24º, close: 36º
Exhaust: 228º (8.8mm); open: 38º, close: 10º

If I replace the intake cam with the exhaust cam (In order to reduce the cam angle and lift), so that intake and exhaust cams are alike. What will the results be?

[rickrobsel]

What was the mildest Crane Fireball hydraulic flat tappet cam made For a ford 289?..was it the 290H-290 advertised duration-216-216 @.050-454-454 lift?.. thank you.

[larrysbranchella]

i have a 383 sbc edelbrock rpm 64cc heads comp cams 12-250-3, 5" vacuum at idle any suggestions to increase vacuum.

[randyization]

I thought the camshaft turned 2 rotations for every one rotation of the crankshaft?

[hotrodswoodshed]

Good info except the very end, the description of lobe separation is inaccurate. He actually got them mixed up. Tight lobe separation focus is power in the low end torque – mid-range. Wide separation focuses Power Band towards upper RPM

[stephenharnois]

Im doing a project how do you find the length of the camshaft of a Subaru's FA20, I cant find anything on how long it is overall

[jasonclements]

Dumb question.. Do these comp cams have a fuel pump lob? I installed the cam and never thought about the mechanical fuel pump. And at summit, I don't see anything regarding the fuel pump lobe.

[imaginebeyondlimits]

Kindly explain how to find angle for end of opening Ramp and Beginning of closing ramp by cam shaft drawing .

Make video on actual Camshaft drawing for various calculation.

[jameswilliams]

I'm doing an engine rebuild and I want to use the same size aftermarket cam. How can I find out what size cam is in my engine now.

[jnxssssss]

Hello I hope you are having a great day I have a little problem I'm no mechanic but I mixed up the camshafts rods and don't know which way they go back in I don't want to mess my van up please help
05 Kia Sedona

[guzforce]

Hi,
That's a awesome video. Quick question? I have the cam and cylinder head only, no crank. Can I just put the gauge, degree disk and check duration, than multiple by 2?

[gordysuggs]

hey i have a 85 z28 69 327sbc bored .030 with 350 crank and very small cam...i was looking at the k1102 cam 262/272 and the edelbrock performer plus 272/282 both have same lift and LSA but i was just wondering your opinion on which cam would be better choice for a street/strip college students daily driver

[gbnggh]

What do u thank would the biggest cam for the street for a 85 ho 305 carb

[gordysuggs]

yea the 68-69 327 blocks were same blocks used for the 350 so all you have to do is swap the crank out...i called and got to talk to some guys from summit about the cam and i have decided to go with the k1102 it sounds like a really good cam for my motor thanks allot for your help

[salasjc]

So the xe268 is good enough for that sound and power.?