Can you please list the specs of your cams! I dont believe MMR lists them. Are they much different than the NA Comp Cams?
I really need to compile a Cam spec inventory so we all dont have to go on a goose chase for cam specs or get the typical "ohh we offer custom cams" which doesnt do anyone any good without knowing the specs!
do you have the a specs on yours? or just throw a set of mmr cams in?I run MMR NA grind cams (comp). Unless you're going max effort, I wouldn't touch the cams on FI.
If you're seeing valve float, then it may be worth looking into upgrading to custom grinds, VCT lockouts, and valve springs.
do you have the a specs on yours? or just throw a set of mmr cams in?
If you dont know how do you know if they arent just comp stage 1 or 2 or 3s? wrapped in a mmr box?
as others have mentioned not many places actually grind cams MMR and JPC dont. they send them off for to be groumd for whatever specs they ask for.
i cant fathom how someone could set an engine up with out knowing the cam specs! sure sounds dangerous to tune aswell if the tuner doesnt know what they are either.
Sure sounds like hail marry engine building and hope for the best once the time slip or dyno sheet is printed.
Meh fuck it i dont need to know specs lets just slap it together and see how she shakes out!?!?! :frusty:
^^^ Agreed, [MENTION=25095]16MustangVet[/MENTION].
As of this year, I'm retiring myself from engine building for the general public after doing it in my spare time for well over 20 years. I shudder to think how many hours of my life I've spent poring over cam specs in that time. One of the more critical components to power production....
On that note, I wonder how many folks know what a degree wheel is anymore. Or how to use one. ;)
Thanks for the piece of mind and reassurance that im not the one losing my damn mind over the cam specs on this platform/engine!^^^ Agreed, [MENTION=25095]16MustangVet[/MENTION].
As of this year, I'm retiring myself from engine building for the general public after doing it in my spare time for well over 20 years. I shudder to think how many hours of my life I've spent poring over cam specs in that time. One of the more critical components to power production....
On that note, I wonder how many folks know what a degree wheel is anymore. Or how to use one. ;)
Update: i ordered these cams along with the valve springs and limiters. My advise to everyone with a 2015+ mustang gt is dont buy them. Ive had so much hell trying to get these to work right. Mostly because vct with the limiters was a pain. The intake phasers would drift real bad and wouldnt do as commanded in the tune. I tried for 2 weeks to get ahold of mmr's cam guy and finally got ahold of him today and told him my problems. He said everything should work and didn't understand why i was having these problems. He also suggested that i lock out the vct, which is not happening. Im not gonna get rid of the vct. My tuner suggested that mmr hasnt done testing on the 2015+ mustang gt's with these cams and limiters which i also agree with. Somehow the midlock phasers that the 2015+ mustangs have dont like limiters. I ended up replacing all 4 phasers to see if maybe they were messed up and still had the same problems. I got tired of tearing down the engine so i finally pulled the mmr cams out and put the stock cams back in. Car runs perfect with the stock cams. Guess ill be selling a set of mmr custom stage 2 blower cams of anyone is interested, lol.
Edit: wish I would of known the specs before buying them. Comp cam stage 2 blower cams are bigger than these ones.
Lift: .512intake .512exhaust
Duration [MENTION=27928]50[/MENTION]: 240intake 242exhaust
128 Lobe speration.
What are your thoughts on the comp cams ?Update: i ordered these cams along with the valve springs and limiters. My advise to everyone with a 2015+ mustang gt is dont buy them. Ive had so much hell trying to get these to work right. Mostly because vct with the limiters was a pain. The intake phasers would drift real bad and wouldnt do as commanded in the tune. I tried for 2 weeks to get ahold of mmr's cam guy and finally got ahold of him today and told him my problems. He said everything should work and didn't understand why i was having these problems. He also suggested that i lock out the vct, which is not happening. Im not gonna get rid of the vct. My tuner suggested that mmr hasnt done testing on the 2015+ mustang gt's with these cams and limiters which i also agree with. Somehow the midlock phasers that the 2015+ mustangs have dont like limiters. I ended up replacing all 4 phasers to see if maybe they were messed up and still had the same problems. I got tired of tearing down the engine so i finally pulled the mmr cams out and put the stock cams back in. Car runs perfect with the stock cams. Guess ill be selling a set of mmr custom stage 2 blower cams of anyone is interested, lol.
Edit: wish I would of known the specs before buying them. Comp cam stage 2 blower cams are bigger than these ones.
Lift: .512intake .512exhaust
Duration [MENTION=27928]50[/MENTION]: 240intake 242exhaust
128 Lobe speration.