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MS4 Cam Only, before I sheared a rocker bolt**

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Old 10-12-2009, 03:08 PM
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Default MS4 Cam Only, before I sheared a rocker bolt**

It made about 391 peak hp and I think 380 peak torque.

Mods
MS4 on 111LSA
PRC plat double springs
7.425 PRs
Mac mid headers
Off road y
Borla CB un corked
MTI Lid
LS6 intake
stock pulleys
home ported TB
stock rockers/heads
12 bolt w/ 3.42s
Tuned by Pat G

This was on a Mustang Dyno, they were a little disappointed with the numbers.

Either way, ill get a graph up tomorrow when I get to scan my graph results and here are some videos before she blew.One un-tuned and one tuned.




Last edited by 1SLwLS1; 10-22-2009 at 09:06 AM. Reason: Change thread/camshaft perception
Old 10-12-2009, 03:13 PM
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I think the numbers are good with that rearend, mid headers and on Mustang dyno and the stuff left on the table....

What happend to the engine??
Old 10-12-2009, 03:17 PM
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Very Nice.
I made 419rwhp with headers and that cam through an A4 w/ 10-bolt. It also blew up...
Old 10-12-2009, 03:22 PM
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at least one rocker bolt broker and the rocker came loose on top of the head, sounds real bad, I am tearing apart tonight to diagnose. Next plan, in a week or so, is to have 799 heads so I will hope for 420-430 on the same dyno with the only difference is a correctly assembled and functioning engine as well as the 799 heads
Old 10-12-2009, 08:03 PM
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i put down 390 on a mustang dyno so i dont think yours is low and mine was on a 10 bolt with my set up on a dyno jet thats 415 easy
Old 10-13-2009, 10:50 AM
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It was nice meeting you Brian. I'm sorry you had mechanical issues, but I look forward to seeing your new setup. Just remember to select heads that don't make P to V clearance worse. That MS4 cam is already tight as it is.
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Old 10-13-2009, 10:57 AM
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Originally Posted by Patrick G
It was nice meeting you Brian. I'm sorry you had mechanical issues, but I look forward to seeing your new setup. Just remember to select heads that don't make P to V clearance worse. That MS4 cam is already tight as it is.
Thanks Patrick, you too. The 799 shouldn't make the clearance any worse, correct?

I will be driving back to you in a few weeks, whenever you schedule is free, I hope to have everything buttoned back up by the beginning of next week. So maybe not this weekend but the next I can come down there for a re-tune
Old 10-13-2009, 12:01 PM
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#'s are right on par for those mods.

3:42's with an MS4???? Why?
Old 10-13-2009, 12:11 PM
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Originally Posted by Damian
#'s are right on par for those mods.

3:42's with an MS4???? Why?
because I have touched the rear end yet...?
Old 10-13-2009, 12:22 PM
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Because you have touched the rear end yet?

That doesn't make sense.

The only reason I was asking is because a cam that big in a 346 needs a 4:10+ gear ratio.
Old 10-13-2009, 02:28 PM
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sorry, because I havent touched the rear end yet.

The previous owner put the 12 bolt in and kept stock gears
Old 10-13-2009, 05:57 PM
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Ahh ok, gotcha. Put some 4:10's in there, it'll feel like a totally different car.
Old 10-14-2009, 12:12 AM
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yes sir, plan to do 4.10s and possible swap for lower OD gears to obtain stock hwy mileage. After the heads are on, I know the clutch is going to begging for a swap as well as all the hydraulics, so the rear end gets put on hold.
Old 10-14-2009, 08:47 PM
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A broke bolt is not a blown up motor, lol. Felt bad for you when I first read that. Convinient time to upgrade heads. Hmm mabee a little too convinient.
Old 10-14-2009, 08:53 PM
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Old 10-14-2009, 10:40 PM
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I thought it was a lot worse too.
It's a good excuse to keep modding though.

Good luck with the build.
Old 10-14-2009, 10:55 PM
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Mine broke a few yella terra rockers with that cam..found out in the install the guys forgot to put the correct seats under the springs, used the factory seats..causing it to coil bind and break **** on the intake side..Everyone one of my partriot springs on the intake were busted bad!! Somethin to look at..my numbers

405/353 on a dynotune(with stock 243 heads) 6 speed/ stock 10bolt..
424/372 dynojet

Vids:
http://www.youtube.com/watch?v=6EHixwbA468
Old 10-14-2009, 11:05 PM
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Originally Posted by 223HAWK
Mine broke a few yella terra rockers with that cam..found out in the install the guys forgot to put the correct seats under the springs, used the factory seats..causing it to coil bind and break **** on the intake side..Everyone one of my partriot springs on the intake were busted bad!! Somethin to look at..my numbers

405/353 on a dynotune(with stock 243 heads) 6 speed/ stock 10bolt..
424/372 dynojet

Vids:
http://www.youtube.com/watch?v=6EHixwbA468
those numbers with 243 heads...? sound odd to anyone else, or were they low because of the seat issues?
Old 10-15-2009, 11:03 AM
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..found out in the install the guys forgot to put the correct seats under the springs, used the factory seats
Whoever is capable of making such an idiotic mistake doesn't need to touch a wrench, ever again.
Old 10-15-2009, 11:08 AM
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With Stock 243s I thought it was about right, Im looking to get them ported or buy a set of patriot heads..but Iv got a question, my clutch started sliping BAD the day after I got it dynoed on the dyno jet thats the one in the vid. and my hp and tq.. tq mainly have a dip in it from 3600-5000..could this be clutch slipping? It would still peak the same hp right? The guy that did the cam/tuning said a set of heads and a fast 92 would greatly help me..



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