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Why the ms3 is no good for the street!

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Old May 1, 2008 | 03:38 PM
  #21  
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is this better for you?

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Old May 1, 2008 | 04:02 PM
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I don't know if it helps or not, but here's a graph of my Trex cam'd car through a T56, 3" steel DS, Slicks, and a 9" w 4.22s and locker. Personally, I thought it was a little weak on the bottom end, but that may just be because it pulled so hard up top.


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Old May 1, 2008 | 04:02 PM
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Originally Posted by Ryan L
No torque. Who cruises at 6k RPM?
Who needs torque when you're cruising anyway? I never really understood why people say big cams are no good for the street. When you're racing, whether it's on the street or the track, you take it to redline anyway.
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Old May 1, 2008 | 04:08 PM
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Originally Posted by 02 Camaro SS
Who needs torque when you're cruising anyway? I never really understood why people say big cams are no good for the street. When you're racing, whether it's on the street or the track, you take it to redline anyway.

Agreed, the low end tq argument is like arguing about hp/ltr. F-that, gimme the right converter in a Auto, or gear in my T56, and i'll be perfectly fine. Besides, what are you more worried about, whether you can run the # at the track, or flexing your muscles by not downshifting on a intense incline on the road due to your super-macho bottom end tq,

Seriosuly though, if you are building anything but a Road race/auto-x car, who cares about bottom end tq?!
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Old May 1, 2008 | 04:12 PM
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at 4k i was making 375 rwtq...
Attached Thumbnails Why the ms3 is no good for the street!-dyno_jpeg.jpg  
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Old May 1, 2008 | 04:26 PM
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Heres an ms4 with some good power down low, over 450 rwtq at 3000rpm ! I know, i know it's not cam only.
Attached Thumbnails Why the ms3 is no good for the street!-ms4-maggie.jpg  
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Old May 1, 2008 | 05:16 PM
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Whats STP numbers? Seat of The Pants?
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Old May 1, 2008 | 05:30 PM
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That's what I like to think they are... I'm not sure what it represents I have all the data files I just forgot to do it in sae when I was transferring the graph.
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Old May 1, 2008 | 06:00 PM
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Originally Posted by camscam02
im not complaining about my set up one bit as it is a race car...

i just wanted to show how it makes no power down low compared to the mid size cams...

overlap a graph of a mid sized cam graph and you will see what im talking about...
Thanks for this post, i agree with you completely. I think your graph illustrates it perfectly well.
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Old May 1, 2008 | 08:06 PM
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I also agree with you. I dont see why people still argue that these big cams arent top end cams??? Doesnt make any sense to me. Just ride in a ms3/ms4/t-rex car, nothing down low below 3500-4000. Then ride in a smaller, ie. 226/230 or 230/230 cammed car and see that there is a big difference.
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Old May 1, 2008 | 08:16 PM
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i loved my ms3 cam in my car...i'd drive it anywhere, even on long trips out of state

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Old May 1, 2008 | 08:34 PM
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So far I have yet to see a small cam graph with more low end than the larger cams.

On a side note. I too think a smaller cam is better for DDing. I just think for different reasons as I feel big cams have grunt too. I would rather DD a milder cam that has better driving manners and consumes less gas. So I am not disagreeing, I just have a different view of why I agree.
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Old May 1, 2008 | 09:06 PM
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hey cam, i was really considering just slapping an MS3 and calling it a day. thanks for actually suggest a more mild street cam for me man. i went with the MTI X1 and made 395rwhp stock heads without a pulley!!

but your in the 10's and thats all that matters dude..
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Old May 1, 2008 | 09:22 PM
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Originally Posted by BADSZ28
This is exactly what I am oposing. Big cams do make good low end. Anything at or above 300rwtq is good low end cam only. And most big cams do just that. My point is you can't make a blanket statement just because your numbers are low in the low end. This does not mean your car is not capable of better low end numbers. My guess is your tuner did most of the tuning above 4k and did not dial in the low end, so your low end numbers are low.
I disagree, the effective opperating rpms for the biggers cams are in the higher rpm bands, they need high velocities of air to sustain the high duration and lifts.
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Old May 2, 2008 | 03:17 AM
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I'm glad you posted this cam. I've been trying to talk my friend out of putting a ms3/ms4 in his DD. Now i can show him why
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Old May 2, 2008 | 03:47 AM
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Originally Posted by BayAreaSS
I'm glad you posted this cam. I've been trying to talk my friend out of putting a ms3/ms4 in his DD. Now i can show him why
good call! tell him to do something around what you have for an all out DD that sees very little track time IMO!
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Old May 2, 2008 | 05:38 AM
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When I built my 346 I was really tempted to use an LG G5X3 (234-242) but changed my mind at the very last minute a put in a 230-236 112 XE-R cam. The H/C 90/90 car still made 460 to the wheels and was a great car for bumper to bumper traffic, trips and pounding the crap out of it. I probably gave up some on top but my average RWHP was better and the car was much more fun to drive. My 403 runs a baby cam for the displacement 234-240 112 +0 and makes 510+/470+ but makes 380RWT at 2200 and is over 400RWT bu 3k RPM. The car still drives like stock and 510/470 are very good peak numbers for a mild 403.

I run into more people wishing they had gone smaller than I do people wishing they had gone bigger after they've driven it for a while.

My $.02
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Old May 2, 2008 | 09:30 AM
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Originally Posted by mo0cow
I disagree, the effective opperating rpms for the biggers cams are in the higher rpm bands, they need high velocities of air to sustain the high duration and lifts.
Yeah, so they make more on the top end, but that does not mean they make less than a smaller cam down low.
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Old May 2, 2008 | 12:21 PM
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Originally Posted by BADSZ28
Yeah, so they make more on the top end, but that does not mean they make less than a smaller cam down low.
come on tq wise they make way less look at my graph to his tq wise...

my dads ms3/5.3/90 only put a max of 374 rwtq...
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Old May 2, 2008 | 12:26 PM
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A set of 5.3l heads will make all the difference. Smaller runners with bigger valves mixes very well with the MS3.
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