OVERKILL
$100 Site Donor 2021
Originally Posted By: 2k05gt
Originally Posted By: OVERK1LL
Originally Posted By: Jeffs2006EvoIX
It just amazes me. Im not starting an arguement, here, but here is a pic of my "race" cams off my evo with 40K on the clock while using M1 EP 10/30
Evo Cam
My cams look nothing like those cams. That is the thing. Did those ugly pics come off a car with 1000 lb spring rates or what? I am just curious because I have never seen anything like that on an evo cam before.
So if Royal Purple "mirco polishes" then iin essense it should "smooth" out inperfections in an engine using a different oil?
Does ONLY Royal Purple protect parts like this? or does Redline and Amsoil do as well?
Very confused here.
The Modular cams? If so, the 2nd set of cams (the Mobil 1 ones) may actually have LESS wear if you look at the pictures I posted and the link Ben99GT posted.
Modulars run light spring pressure. What you see as "grey" on those cams may be the virgin cam material with the "wear tracks" in the middle being the only spots with very LIGHT wear from where the roller contacts the lobe.
I'd rather have my cam lobes virgin than "micro polished", but that's just me....
I am not sure what Cams you are Referring too, but the M1 cams on the car with less miles did have considerable wear, I took them to a shop and had them MIC'ed the RP Cams with twice the milage had NO wear at all. We tested Brand new stock cams and the Micrometer reveiled ZERO. yet the M1 cams had a noticable "groove" where the followers touched the lobes on the cam.
I have replaced the heads on my 2005 Mustang because I installed a Comp 127300 Cams and Beehive Springs. I lightly ported and polished the heads (cleaned up). My car has 95,000 miles today and I am still hitting the track. No compression loss, no wear, and still run RP. I sold the Comp 127200 cams and the guy thought they were new. even the bearing guides were unmarked and like new.
Did you look at the SEQ-IVA pics?
And unless you measured the cams with zero miles and then after mileage accrued, you can't draw that conclusion (unfortunate I know) due to variances in machining. It was a joke (but a true one) that all the HO camshafts for the 302 HO were unique because none of them would spec out the same when measured. As it is with mass produced camshafts, none of the cams will be absolutely identical, and this is the reason we cam doctor custom camshafts.
Regardless, the "tracks" on the cams are normal, as cam lobes aren't polished. You polish something, you remove material.
This has been hashed over and over (as I'm sure you are aware) and if you feel comfortable running RP, that's fantastic! Nobody is stating that it is a bad oil, simply that the "testing" methodology used here really isn't valid. It wasn't controlled, and was done on two different cars with different drivers done in different conditions. We don't even know if the lobes on the cams came from the same batch or not. There are so many variables....
But I mean, you didn't set out to prove anything, it was a casual observation that turned into a full-blown debate. And I'm glad you posted the pictures, as the subsequent discussion(s) that ensued were educational.
Originally Posted By: OVERK1LL
Originally Posted By: Jeffs2006EvoIX
It just amazes me. Im not starting an arguement, here, but here is a pic of my "race" cams off my evo with 40K on the clock while using M1 EP 10/30
Evo Cam
My cams look nothing like those cams. That is the thing. Did those ugly pics come off a car with 1000 lb spring rates or what? I am just curious because I have never seen anything like that on an evo cam before.
So if Royal Purple "mirco polishes" then iin essense it should "smooth" out inperfections in an engine using a different oil?
Does ONLY Royal Purple protect parts like this? or does Redline and Amsoil do as well?
Very confused here.
The Modular cams? If so, the 2nd set of cams (the Mobil 1 ones) may actually have LESS wear if you look at the pictures I posted and the link Ben99GT posted.
Modulars run light spring pressure. What you see as "grey" on those cams may be the virgin cam material with the "wear tracks" in the middle being the only spots with very LIGHT wear from where the roller contacts the lobe.
I'd rather have my cam lobes virgin than "micro polished", but that's just me....
I am not sure what Cams you are Referring too, but the M1 cams on the car with less miles did have considerable wear, I took them to a shop and had them MIC'ed the RP Cams with twice the milage had NO wear at all. We tested Brand new stock cams and the Micrometer reveiled ZERO. yet the M1 cams had a noticable "groove" where the followers touched the lobes on the cam.
I have replaced the heads on my 2005 Mustang because I installed a Comp 127300 Cams and Beehive Springs. I lightly ported and polished the heads (cleaned up). My car has 95,000 miles today and I am still hitting the track. No compression loss, no wear, and still run RP. I sold the Comp 127200 cams and the guy thought they were new. even the bearing guides were unmarked and like new.
Did you look at the SEQ-IVA pics?
And unless you measured the cams with zero miles and then after mileage accrued, you can't draw that conclusion (unfortunate I know) due to variances in machining. It was a joke (but a true one) that all the HO camshafts for the 302 HO were unique because none of them would spec out the same when measured. As it is with mass produced camshafts, none of the cams will be absolutely identical, and this is the reason we cam doctor custom camshafts.
Regardless, the "tracks" on the cams are normal, as cam lobes aren't polished. You polish something, you remove material.
This has been hashed over and over (as I'm sure you are aware) and if you feel comfortable running RP, that's fantastic! Nobody is stating that it is a bad oil, simply that the "testing" methodology used here really isn't valid. It wasn't controlled, and was done on two different cars with different drivers done in different conditions. We don't even know if the lobes on the cams came from the same batch or not. There are so many variables....
But I mean, you didn't set out to prove anything, it was a casual observation that turned into a full-blown debate. And I'm glad you posted the pictures, as the subsequent discussion(s) that ensued were educational.