MS3 on a 112 LSA
07-24-2006, 09:48 PM
#1
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MS3 on a 112 LSA I for sure gonna get the MS3 cam now. I just don't think the MS4 would be good for me as a daily driver. I am considering getting my MS3 ground on a 112 LSA for an even choppier idle. 
I am not a cam expert or anything, but I have read the sticky on cams and about grinding advanced or retarded timing into the cam. Do you think it would help midrange power (and streetability) any if I get +2 degrees of advance ground into the cam, or should I just leave it how it is?? Any input is welcome...
I am not a cam expert or anything, but I have read the sticky on cams and about grinding advanced or retarded timing into the cam. Do you think it would help midrange power (and streetability) any if I get +2 degrees of advance ground into the cam, or should I just leave it how it is?? Any input is welcome... 
07-24-2006, 10:24 PM
#2
I say get it on a 112 LSA and leave the rest alone. It is a proven performer as it is, and has made killer numbers. I am in the middle of deciding between the MS3 and MS4 myself. I have also though about the TR TRAK cam. I dont mind daily driving a somewhat extreme setup.
07-25-2006, 11:42 PM
#6
the ms4 seems to be a more streetable cam than the ms3 .. personally i think the ms4 owns the ms3 in all aspects.. if your worried about either of those cams being too big then id get a t2 cam
from expirence i can say the ms3 is a big cam but can betuned to run fairly well.. although i persoanlly wouldent wanna daily drive my ms3 car (but i drive ALOT)
from expirence i can say the ms3 is a big cam but can betuned to run fairly well.. although i persoanlly wouldent wanna daily drive my ms3 car (but i drive ALOT)
07-26-2006, 01:01 AM
#7
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Originally Posted by Jpr5690
the ms4 seems to be a more streetable cam than the ms3 .. personally i think the ms4 owns the ms3 in all aspects.. if your worried about either of those cams being too big then id get a t2 cam
from expirence i can say the ms3 is a big cam but can betuned to run fairly well.. although i persoanlly wouldent wanna daily drive my ms3 car (but i drive ALOT)
from expirence i can say the ms3 is a big cam but can betuned to run fairly well.. although i persoanlly wouldent wanna daily drive my ms3 car (but i drive ALOT)
What makes you think the MS4 is more streetable than the MS3??? Have you seen the specs on it??
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07-26-2006, 01:15 AM
#8
Originally Posted by PREDATOR-Z
I'm not 100% sure but i do not think a 112 would fit without flycutting as cam only.
Might wanna talk to TSP to verify.
Might wanna talk to TSP to verify.
MS4 is 111 or something, the valve events have changed apparently.
07-26-2006, 01:22 AM
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Originally Posted by HottLS1Z
Mine is on a 112 LSA...no flycutting just the usual 918 springs and chromoly push rods and LS7 timing chain to go with it. Runs fine.
07-26-2006, 01:28 AM
#10
Well. The only way to determine if it will fit is to actually check before turning the motor over with the key and the cam installed. You might want to double check. When it comes to this stuff always check yourself. The internet mechanic is not always right. It might work on some people's setups, but don't trash your valvetrain based off what someone that is not looking at the clearances beside you.
07-26-2006, 07:48 AM
#11
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There are variations in piston deck height that could affect it.
also a 112 +0 might fit but not a 112+2 or +4 for exemple.
Also when we say it fits, (and for those who run it) wht are the values of your intake/exhaust PTV???
For exemple a G5X3 on a 112 fits but has tigh .07 or less on intake. IMO suicide on the street, but yeah it fits.
also a 112 +0 might fit but not a 112+2 or +4 for exemple.
Also when we say it fits, (and for those who run it) wht are the values of your intake/exhaust PTV???
For exemple a G5X3 on a 112 fits but has tigh .07 or less on intake. IMO suicide on the street, but yeah it fits.
07-26-2006, 10:08 AM
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The only thing that I'm changing is the LSA, I'm not getting any advance ground in. I know the "internet mechanic" is not always right, but HottLS1Z has an MS3 on a 112 in his car. So obviously it fits without any problems. I sent a PM to Texas Speed and in the PM they sent back they said they would have no problem grinding the MS3 on a 112 LSA for me, and mentioned nothing about piston to valve clearance. I sent another PM yesterday regarding the piston to valve clearance, but that hasn't been replied to yet. And I would think that anyone who installs a cam would turn the motor over before they started it anyways.....
07-26-2006, 12:46 PM
#13
THE main critisizm of the ms3 was its low end.. the ms4 will have more power in the low end as welll as up top.. basically the ms4 is a better cam in all aspects when compared to the ms3... the extra bit of lift and duration will not be noticeable but the power down low wil.. again with the ms4 arround the ms3 seems obsoleet (sp) l
i currently have a ms3 cam and its fine for the 4-5k miles a year i drive (in that car) but if i had the choice id go ms4 and (if possible) the terminator heads.. im pretty sure you would make killer power with this setup and it would be streetable
i currently have a ms3 cam and its fine for the 4-5k miles a year i drive (in that car) but if i had the choice id go ms4 and (if possible) the terminator heads.. im pretty sure you would make killer power with this setup and it would be streetable
07-26-2006, 08:35 PM
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So you really don't think all that lift on the MS4 will affect streetabilty any??? How about spring life? How long do you think springs will last and does it prolong spring life any if I rarely beat on it (hypothetically speaking.. )??
)??
07-27-2006, 12:38 AM
#15
im no cam god but i really dont believe high lift (within reason) will effect driveablity...yea it will reduce spring life but i would say that if your ok with the spring life of the ms3 cam (ie: 20k miles) then the ms4 isnt gonna be much worse off.. what it will be though is a better cam throught the power band espically down low.. yea its a big cam but the ms3 is no smaller .... if i were you i would just get the ms4 if your concerned about it being too big you could step down the duration but i think that steping down the lift would be just waste of time.. hell look at the new high lift 224 cams the whole idea there is good power and good driveablity.. the ms3\4 cams are not the best daily driver but they do make great power...
