ms4 cam to big?
FormerVendor
Joined: May 2004
Posts: 247
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From: Portland Oregon
Some have come apart internally, they get their high RPM rating from lightweight internal parts which I beleive are made from ceramic. In my personal Z06 I installed them after a cam install, on start up I had less than half of the oil pressure that I had. After tearing my hair out and taking the engine apart three times to figure out what happened, I replaced the Caddy lifters with a set of GM LS7 lifters and the problem went away. There is no sense in using these unless you plan on going to 8k RPM, for all other intents and purposes, a LS7 lifter is all you need. Don't even go to Comp Cams Comp R lifters, as you will have a hell of a time setting the proper preload without adjustable rocker arms. Morels, well they work great, but at 2.5X+ what a LS7 lifter kit costs.......they don't work 2.5X+ as good I can tell you that!
Well there are $3xx Morels and then $5xx ones, and then $6xx ones for the LSx.
The cheap ones Tom is right aren't much better than a stock one.
But when you step up to the $5xx and $6xx ones they are made a whole bunch differently and are a far superior lifter to the LS7.
They've got a few series of them for true hi performance applications for our engines.
We use and sell a lot of the $5xx link bar hydraulics but they have a step above that called the ultimate lifter and also a 0 lash HLT lifter (has .030 of travel). The ultimate is thicker bodied and micronited and gets some of its roots from their offshore racing lifters.
The cheap ones Tom is right aren't much better than a stock one.
But when you step up to the $5xx and $6xx ones they are made a whole bunch differently and are a far superior lifter to the LS7.
They've got a few series of them for true hi performance applications for our engines.
We use and sell a lot of the $5xx link bar hydraulics but they have a step above that called the ultimate lifter and also a 0 lash HLT lifter (has .030 of travel). The ultimate is thicker bodied and micronited and gets some of its roots from their offshore racing lifters.
Last edited by 99blancoSS; Feb 21, 2009 at 03:37 PM.
Here's a good example of choosing the correct cam for your combo. I don't go for the big cam non sense at all, I want nice power all of the time. This is with bonestock ls6 heads and intake, 1 7/8 Kooks and added cubic inches (408). cam is a 228/232 578/587 112/108. 430rwhp and 450rwtq, look at that flat tq curve, lol, I can double the Z06 up as a stump puller, lol.
Robert
Robert
Here's a good example of choosing the correct cam for your combo. I don't go for the big cam non sense at all, I want nice power all of the time. This is with bonestock ls6 heads and intake, 1 7/8 Kooks and added cubic inches (408). cam is a 228/232 578/587 112/108. 430rwhp and 450rwtq, look at that flat tq curve, lol, I can double the Z06 up as a stump puller, lol.
Robert
Robert
You guys are missing the point, correct cam for any given combo. That is a tiny cam for a 408 with headers, as the only mod, and proves that a small cam can work fine and give a nice linear tq/pwr curve. I do realize that there is no cure for cubic inches. That's prob the best mod any of us can make, add cubic inches. 
Robert
Robert
Thread Starter
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From: washington state
You guys are missing the point, correct cam for any given combo. That is a tiny cam for a 408 with headers, as the only mod, and proves that a small cam can work fine and give a nice linear tq/pwr curve. I do realize that there is no cure for cubic inches. That's prob the best mod any of us can make, add cubic inches.
Robert
Robert
Thread Starter
TECH Enthusiast
iTrader: (14)
Joined: Sep 2006
Posts: 697
Likes: 1
From: washington state
found my cam, i decided to go with an mti x1 230/227 dur, .591/.571 lift, 112 lsa, ill probably find myself a set of 243 heads to put on there when i do the cam.
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12 Second Club
Joined: Jul 2004
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From: Lynnwood, WA
I've got the asa cam in mine which is a 225/235 .525/.525 110lsa and honestly... I'm getting tired of it... good power but it's kind of a p.i.t.a. I can get the same amount of power with something that still has that "sound" but drive a lot better.
its not your cam that is a pita as you say... its your tuner..
I agree. I have a MS4 (HP Tuned on the road not dyno) in my LS6 and it runs FANTASTIC! It's my first cammed car, and I can drive in stop and go traffic without any issues. I love it, even have had stang owners compliment on it
Robert,
Those are some really low numbers for a 408. I know you probibly have some timing pulled due to N20, right??? But ****, Mine in the SS pushed 487hp 464tq through a TH400. And it was on a 91oct tune (California). Yours is a standard right??? What gives on those numbers?
Those are some really low numbers for a 408. I know you probibly have some timing pulled due to N20, right??? But ****, Mine in the SS pushed 487hp 464tq through a TH400. And it was on a 91oct tune (California). Yours is a standard right??? What gives on those numbers?
Robert,
Those are some really low numbers for a 408. I know you probibly have some timing pulled due to N20, right??? But ****, Mine in the SS pushed 487hp 464tq through a TH400. And it was on a 91oct tune (California). Yours is a standard right??? What gives on those numbers?
Those are some really low numbers for a 408. I know you probibly have some timing pulled due to N20, right??? But ****, Mine in the SS pushed 487hp 464tq through a TH400. And it was on a 91oct tune (California). Yours is a standard right??? What gives on those numbers?
Might have something to do with it. Brandon put up 470 with TSP stage 1 heads and a LS6 intake and ms4. He's about 20 under that so that really isn't that bad consideriing the mods. He's got torque up the wazoo right from idle.
This is with bonestock ls6 heads and intake.
Might have something to do with it. Brandon put up 470 with TSP stage 1 heads and a LS6 intake and ms4. He's about 20 under that so that really isn't that bad consideriing the mods. He's got torque up the wazoo right from idle.
Might have something to do with it. Brandon put up 470 with TSP stage 1 heads and a LS6 intake and ms4. He's about 20 under that so that really isn't that bad consideriing the mods. He's got torque up the wazoo right from idle.
This is with bonestock ls6 heads and intake.
Might have something to do with it. Brandon put up 470 with TSP stage 1 heads and a LS6 intake and ms4. He's about 20 under that so that really isn't that bad consideriing the mods. He's got torque up the wazoo right from idle.
Might have something to do with it. Brandon put up 470 with TSP stage 1 heads and a LS6 intake and ms4. He's about 20 under that so that really isn't that bad consideriing the mods. He's got torque up the wazoo right from idle.
