seems the ms3 out performs the ms4
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TECH Regular
Joined: Feb 2017
Posts: 436
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From: Michigan
seems the ms3 out performs the ms4 I'm not saying i plan on running either of the cams, also not sure if this is the right section to post this in but looking on TSP website if you read all the information about the ms4 it should out perform the ms3 in every way makes more power and brings power in sooner but everything i read and see online with track results from people who run the ms3 and ms4 the ms3 guys are running faster et's with the only real differences in the builds being the cam. anyone care to shed some light on the situation i been curious about this for awhile 🤔
Without knowing the specs of either can I can only guess that the difference between the two is putting MS4's peak power up higher in the RPM band. In a nut shell as you put peak power further up in the rpm range you're also bring the peak torque higher in the rpm range along with it with a loss of torque at the bottom of the range.
The question at that point is will the rise in peak power make up for the loss in low end power over the distance you plan on racing.
A big problem that people run into is they don't match the cam to the engine/transmission/gearing and weight of a vehicle. Besides changing cams you also need to look at the valvetrain/heads/compression/converter/gearing among other things.
In simple terms bigger isn't always better with all other things being equal.
The question at that point is will the rise in peak power make up for the loss in low end power over the distance you plan on racing.
A big problem that people run into is they don't match the cam to the engine/transmission/gearing and weight of a vehicle. Besides changing cams you also need to look at the valvetrain/heads/compression/converter/gearing among other things.
In simple terms bigger isn't always better with all other things being equal.
I will also add this, Every build should be considered from the front bumper to the rear bumper and everything in between. Mismatched parts anywhere along the line will hurt performance.
TECH Junkie
Joined: Nov 2013
Posts: 3,913
Likes: 366
From: White Bear, Mn
Without knowing the specs of either can I can only guess that the difference between the two is putting MS4's peak power up higher in the RPM band. In a nut shell as you put peak power further up in the rpm range you're also bring the peak torque higher in the rpm range along with it with a loss of torque at the bottom of the range.
The question at that point is will the rise in peak power make up for the loss in low end power over the distance you plan on racing.
A big problem that people run into is they don't match the cam to the engine/transmission/gearing and weight of a vehicle. Besides changing cams you also need to look at the valvetrain/heads/compression/converter/gearing among other things.
In simple terms bigger isn't always better with all other things being equal.
The question at that point is will the rise in peak power make up for the loss in low end power over the distance you plan on racing.
A big problem that people run into is they don't match the cam to the engine/transmission/gearing and weight of a vehicle. Besides changing cams you also need to look at the valvetrain/heads/compression/converter/gearing among other things.
In simple terms bigger isn't always better with all other things being equal.
It really depends on if you are looking at the old style ms3/4 vs the new design ms3/4
The difference is more than just the @.050 that you see and more lift, but if your heads will flow above .600 well the ms4 is a good idea. They do use the same exhaust lobe also.
For most street/strip and mid range builds the ms3 is more than enough and often too much. If you drive an M6, do you really wanna look like a cowboy ridin a bull in the mall parking lot trying to park at Dillards? It is a fun cam that makes power no doubt, but keep in mind you wont be above 3k all the time.
The difference is more than just the @.050 that you see and more lift, but if your heads will flow above .600 well the ms4 is a good idea. They do use the same exhaust lobe also.
For most street/strip and mid range builds the ms3 is more than enough and often too much. If you drive an M6, do you really wanna look like a cowboy ridin a bull in the mall parking lot trying to park at Dillards? It is a fun cam that makes power no doubt, but keep in mind you wont be above 3k all the time.
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There is no "v3" anymore. Its V2 or V4. Tsp has changed around so much in their new facility vs how it was before most dont realiz how much. But still right anyway, the @.050 isnt much off but the V4 lobes are completely different even being close @.050.
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Joined: Aug 2007
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From: Turnin' Wrenches Infractions: 005
I kinda figured. Exact same analogy though. V3 was the better cam. V2 STILL gets the credit. Sometimes the newest iteration just doesn't catch on, whether it's better or not.
Ms4 is a max effort cam and I see a lot of results from guys not willing to go max effort! I'd spin it to 7k plus and steep gears, light chassis and tuning said chassis and working on the details.