[woody1]

Those ford cams are lazy. They were great in the 80's before anyone knew what was really happening with ramp rates and lobes in regards to hyd rollers. Look at some of the junk from Comp, XE series or a TFS Stg 2. Measure PTV clearance and move forward, pretty simple stuff.

[MassHole]

the F303 will fit with changes needed. the X303 wont unless you adjust the valve to piston clearence.

that is all :

[Iownastang]

Originally Posted by 1BADSTANG the abc cams are very outdated. The "b" and "f" are both good cams but their are much better out their now.

duh there are better grinds out there but cam technology is still the same

[JBIGBOOTSY]

Originally Posted by Iownastang duh there are better grinds out there but cam technology is still the same

No, No, No... A new .512 224* lift cam will make more power than an out dated .512 224*lift cam

[1slo5.0]

Originally Posted by wesbeck632 Hi, can anybody tell me the cam with the most duration and lift you can fit in a stock 5.0(with stock forged pistons)?I have an f now and am wondering how much bigger i can go. I realize duration is just as an important part as lift with clearance.Do fprd racing z and x cams fit?thanks.

Depends. Valve timing plays a bigger role than anything with valve to piston clearance.

[1slo5.0]

Originally Posted by JBIGBOOTSY No, No, No... A new .512 224* lift cam will make more power than an out dated .512 224*lift cam

Yes, it is very possible. There are many ways to come up with 224 duration which many people don't realize.

[1BADSTANG]

Originally Posted by Darrell Yes, it is very possible. There are many ways to come up with 224 duration which many people don't realize.

[JBIGBOOTSY]

Originally Posted by Darrell Yes, it is very possible. There are many ways to come up with 224 duration which many people don't realize.

Ramp, and lobe seperation angles...yes I do understand how cams work. My point is just that a custom grind, just like titanium valves are better. But not a nessessity to 80+% of the members.

[1slo5.0]

Originally Posted by JBIGBOOTSY Ramp, and lobe seperation angles...yes I do understand how cams work. My point is just that a custom grind, just like titanium valves are better. But not a nessessity to 80+% of the members.

Valve timing events produce duration and lobe separation. You can have two cams with the same duration and lift and one will kill the other in horsepower and torque. That was the point I was making. Custom grinds have nothing to do with the point I was making.

Is cam #1 the same as cam #2? The duration and lift are the same so the cams must be the same, right?

Cam #1
IVO-26 IVC-62
EVO-74 EVC-22
Intake duration – 268 @ .050
Exhaust duration – 276 @ .050
Intake lobe lift - .454
Intake lobe lift - .422


Cam #2
IVO-36 IVC-52
EVO-68 EVC-28
Intake duration – 268 @ .050
Exhaust duration – 276 @ .050
Intake lobe lift - .454
Intake lobe lift - .422

[JBIGBOOTSY]

Originally Posted by Darrell Valve timing events produce duration and lobe separation. You can have two cams with the same duration and lift and one will kill the other in horsepower and torque. That was the point I was making. Custom grinds have nothing to do with the point I was making. Is cam #1 the same as cam #2? The duration and lift are the same so the cams must be the same, right? Cam #1 IVO-26 IVC-62 EVO-74 EVC-22 Intake duration – 268 @ .050 Exhaust duration – 276 @ .050 Intake lobe lift - .454 Intake lobe lift - .422 Cam #2 IVO-36 IVC-52 EVO-68 EVC-28 Intake duration – 268 @ .050 Exhaust duration – 276 @ .050 Intake lobe lift - .454 Intake lobe lift - .422

they both have 272 intake duration, and 264 exhaust duration(acording to the top numbers). they are diffrent in the fact cam 1 is on a 112lsa, and 2 is on a 106.

[gotn20]

now you guys are just showling off

[1BADSTANG]

hahahhahah

[1slo5.0]

Originally Posted by JBIGBOOTSY they both have 272 intake duration, and 264 exhaust duration(acording to the top numbers). they are diffrent in the fact cam 1 is on a 112lsa, and 2 is on a 106.

No, they both have 268 at @.050 intake and 276 @.050 exhaust duration. Cam 1 lobe separation is 112 and the overlap is 48 degrees. Cam 2 lobe separation is 104 and the overlap is 64 degrees. The valve timing is what makes the difference in power, not the duration or lobe separation.

[1BADSTANG]

Originally Posted by Darrell No, they both have 268 at @.050 intake and 276 @.050 exhaust duration. Cam 1 lobe separation is 112 and the overlap is 48 degrees. Cam 2 lobe separation is 104 and the overlap is 64 degrees. The valve timing is what makes the difference in power, not the duration or lobe separation.

[JBIGBOOTSY]

Originally Posted by Darrell No, they both have 268 at @.050 intake and 276 @.050 exhaust duration. Cam 1 lobe separation is 112 and the overlap is 48 degrees. Cam 2 lobe separation is 104 and the overlap is 64 degrees. The valve timing is what makes the difference in power, not the duration or lobe separation.

Bad math on my part for the duration. I got your numbers, but the I got 268/276 for the advertised. IDK what the .050 would be. I don't get the point of this tho... By my previous statement I meant two identical cams, as implied. Not too diffrent cams. You added the "not if ....". I do know my way around a cam card if thats what your trying to test.

I understand the performance oriented timing, and the fact that we havent touched the subject of ramp profile, but that was not my point.

My origional point was that 2 exact cams, will make the same power. in the same motor....degreed the same.... dynoed in the same dyno....with the same temperature...with the same humidity...at the same elevation...

[1slo5.0]

Originally Posted by JBIGBOOTSY Bad math on my part for the duration. I got your numbers, but the I got 268/276 for the advertised. IDK what the .050 would be. I don't get the point of this tho... By my previous statement I meant two identical cams, as implied. Not too diffrent cams. You added the "not if ....". I do know my way around a cam card if thats what your trying to test. I understand the performance oriented timing, and the fact that we havent touched the subject of ramp profile, but that was not my point. My origional point was that 2 exact cams, will make the same power. in the same motor....degreed the same.... dynoed in the same dyno....with the same temperature...with the same humidity...at the same elevation...

Timing and duration can be at .050 or seat to seat. In this case it is at .050.

I was commenting on where you said "a new .512 224* lift cam will make more power than an out dated .512 224*lift cam". Yes, it might because it might be a different grind that might have the same duration and lift but in fact be a much different cam. That is the point I was trying to make. Then you commented about ramp and lobe separation angles are used to come up with duration figures which is wrong so I explained it. I wasn't intending on creating a pissing match, I was just explaining how it worked.

[JBIGBOOTSY]

Originally Posted by Darrell Timing and duration can be at .050 or seat to seat. In this case it is at .050. I was commenting on where you said "a new .512 224* lift cam will make more power than an out dated .512 224*lift cam". Yes, it might because it might be a different grind that might have the same duration and lift but in fact be a much different cam. That is the point I was trying to make. Then you commented about ramp and lobe separation angles are used to come up with duration figures which is wrong so I explained it. I wasn't intending on creating a pissing match, I was just explaining how it worked.

Ok, got ya. I diden't mean that ramp and lobe seperation is how you come up with duration. I was just listing them as things that are important and were not listed in my post about the same cam.

[tehdwarvenn]

ok guys.. just answer his question straightfoward... if you want a better cam, get a custom grind.

if you want a big cam, go ahead and have the chug, but its not going to run well.