MS4 cam??
Think what you want, but ptv clearance IS an issue with this cam. Do a search and see how close you are pushing it. You HAVE to run a stock size valve if you are on the stock bottom end, that's how close it is!
I have never, let me repeat, NEVER, mechanically overreved the motor. I have hit the rev limiter (6,800 rpm). My bearings are fine....Its amazing somebody would have the nerve to suggest otherwise....but whatever. I bought the cam as a kit, that's with PRC dual springs(.660 max), titanium retainers, pushrods etc. One of our sponsers installed and tuned the cam.
Look, I love the cam, streetability is good and it makes wicked power. TSP has always been super helpful and friendly. But coming from REAL experiance, the PTV clearance is something think about.
I have never, let me repeat, NEVER, mechanically overreved the motor. I have hit the rev limiter (6,800 rpm). My bearings are fine....Its amazing somebody would have the nerve to suggest otherwise....but whatever. I bought the cam as a kit, that's with PRC dual springs(.660 max), titanium retainers, pushrods etc. One of our sponsers installed and tuned the cam.
Look, I love the cam, streetability is good and it makes wicked power. TSP has always been super helpful and friendly. But coming from REAL experiance, the PTV clearance is something think about.
lol, boy aren't you a smart one. I have the cam in my car and it PEAKED at 6400, so where are you getting 9000 rpms at??? And yes it would only be a mild cam in an ls7.
You must not be very smart if you think that cam peaks at 6400 rpm just cause texas speed says it does. Maybe it would peak at 6400 rpm if you had no other supporting mods, and you were running a stock LS1 intake, with stock manifolds. My crappy comp cam 212/218 doesn't peak till 6100 rpm. Thats whats wrong with the racing world today, to many people with more money then brains. The LS7 also has 1.8 rockers, is the .649 lift of the MS4 with 1.8 rockers? I think not. The LS7 cam specs at .211/.230 .591 lift with 1.8 rockers. So how mild would that cam be in a LS7 again?
http://www.gmperformanceparts.com/En...2397&engCat=ls
http://www.gmperformanceparts.com/En...2397&engCat=ls
Last edited by MPFD; May 7, 2008 at 09:13 PM.
You must not be very smart if you think that cam peaks at 6400 rpm just cause texas speed says it does. Maybe it would peak at 6400 rpm if you had no other supporting mods, and you were running a stock LS1 intake, with stock manifolds. My crappy comp cam 212/218 doesn't peak till 6100 rpm. Thats whats wrong with the racing world today, to many people with more money then brains. The LS7 also has 1.8 rockers, is the .649 lift of the MS4 with 1.8 rockers? I think not. The LS7 cam specs at .211/.230 .591 lift with 1.8 rockers. So how mild would that cam be in a LS7 again?
http://www.gmperformanceparts.com/En...2397&engCat=ls
http://www.gmperformanceparts.com/En...2397&engCat=ls
And the reason the cam peaks at 6400 is usually due to the intake. Ls6/fast 90's only flow so much on the top end. A sheet metal intake would have that cam making peak power around 7500.
i DD mine.. has a base tune for the moment. about to get my dyno tune... mine runs perfectly fine on the street.. friend has an f13... mine is just as streetable as his....
people who say this cam isnt streetable either...
A) have never DD one..
or
B) had a SHITTY *** tune on it..
period..
people who say this cam isnt streetable either...
A) have never DD one..
or
B) had a SHITTY *** tune on it..
period..
But I don't, I run the stock rockers and selected a cam for the stock rockers that can clear the pistons.....i'm not seeing the point you're trying to make. All I'm saying is that the STOCK cam in an LS7 is fairly large, and that an MS4 (if it even works in the LS7) wouldn't be much of bigger upgrade. Obviously the lift would be too much.....but the problem with it being "too big" in a stock cube ls1 has more to do with the duration and VE than the lift alone. When people are talking about "big" cams....they're talking about duration, LSA, and valve events.....not so much the actual lift. Hell....most of the mid range cams would be too much for the ls7 since it has 1.8 rockers.
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Verdad Gallardo Nobody said you couldn't daily drive anything, I said thats to big of a cam especially for a 346 cube. You would need at least L92 heads to flow well enough to actually use the power that cam has to offer. If its such a sweet cam and works so well for you why are you only in the 12 sec club? I've seen stock cam ls1 run in the 12's all day.
Nobody said you couldn't daily drive anything, I said thats to big of a cam especially for a 346 cube. You would need at least L92 heads to flow well enough to actually use the power that cam has to offer. If its such a sweet cam and works so well for you why are you only in the 12 sec club? I've seen stock cam ls1 run in the 12's all day.
Nobody said you couldn't daily drive anything, I said thats to big of a cam especially for a 346 cube. You would need at least L92 heads to flow well enough to actually use the power that cam has to offer. If its such a sweet cam and works so well for you why are you only in the 12 sec club? I've seen stock cam ls1 run in the 12's all day.
Ok, I going to stop right here, theres no point in argueing with someone who doesn't understand static vs. dynamic compression ratios and how valve overlap effects this. A cam that big in an otherwise stock LS1 would put your compression ratio in the low 9 to 1 range. I 4000 yank and a pair of slicks will get a stock LS1 in the 11's. I'll I'm saying is if you some research outside of LS1 tech you will find that there are better cams with lower duration and lift, that will be more effiecent, and make more useable power.
Last edited by MPFD; May 7, 2008 at 10:04 PM.
so I'm happy you went to school and applied urself but I would never let u work on my car if this is the case. Who said anything about stock gearing? I certainly didn't. I wouldn't work on your car you couldn't afford me. But I'm glad you admitted that you don't do your own work. It's all starting to prove my more money then brains theory.
I guess I failed to think when someone says STOCK ls1 that means u can throw in any rear gears, and suspension mods you want and the car is still stock . I would still like to see a bone stock ls1 even with 4.10s run
11s with JUST slicks and a 4k stall. Once again if this were the case thats a very cheap 11 sec car and almost every a4 on this site would be running 11's. I couldnt afford you? please you make is sound like ur the top mechanic of the world. I mean the 7k i put in my car over the winter I guess I couldn't afford you.
The only thing I agree with you on is the fact that there are lower duration, lift cams out there with more usable power.
. I would still like to see a bone stock ls1 even with 4.10s run 11s with JUST slicks and a 4k stall. Once again if this were the case thats a very cheap 11 sec car and almost every a4 on this site would be running 11's. I couldnt afford you? please you make is sound like ur the top mechanic of the world. I mean the 7k i put in my car over the winter I guess I couldn't afford you.
The only thing I agree with you on is the fact that there are lower duration, lift cams out there with more usable power.
Last I checked the LS1 was actually the "engine" of the car. And I'm not a mechanic, but I do write technical training courses and train all factory "dealer technicians" in North America for a major corporation.
Last edited by MPFD; May 7, 2008 at 10:31 PM.
On The Tree
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[QUOTE][I guess I failed to think when someone says STOCK ls1 that means u can throw in any rear gears, and suspension mods you want and the car is still stock . I would still like to see a bone stock ls1 even with 4.10s run
11s with JUST slicks and a 4k stall. Once again if this were the case thats a very cheap 11 sec car and almost every a4 on this site would be running 11's. I couldnt afford you? please you make is sound like ur the top mechanic of the world. I mean the 7k i put in my car over the winter I guess I couldn't afford you.
/QUOTE]
Guess you never seen NHRA stock cars... Stock spec cams stock heads, 10's no 9's
Just because asswipes on ls1tech can't do it with crap bolt ons!
"Daddy can I have the credit card for the biggest cam some sponser makes!!"
By the way old stroker this is kinda fun
11s with JUST slicks and a 4k stall. Once again if this were the case thats a very cheap 11 sec car and almost every a4 on this site would be running 11's. I couldnt afford you? please you make is sound like ur the top mechanic of the world. I mean the 7k i put in my car over the winter I guess I couldn't afford you.
/QUOTE]
Guess you never seen NHRA stock cars... Stock spec cams stock heads, 10's no 9's
Just because asswipes on ls1tech can't do it with crap bolt ons!
"Daddy can I have the credit card for the biggest cam some sponser makes!!"
By the way old stroker this is kinda fun
Nobody said you couldn't daily drive anything, I said thats to big of a cam especially for a 346 cube. You would need at least L92 heads to flow well enough to actually use the power that cam has to offer. If its such a sweet cam and works so well for you why are you only in the 12 sec club? I've seen stock cam ls1 run in the 12's all day.
its a cam only app, that will be on if not beat most H/C/I cars.. thats saying something isnt it?
sorry i hate tech support... they make u run around in lookin like a monkey with ur head cut off so i can order the part i already new was bad after cut off time and waste a day of diag.....sorry not bashing and i work for a MAJOR corp