I just put a cam in my car, got the asp harmonic balancer on my car while changing out the cam, and got my PCM tuned. The cam specs are 224 .561 112. I take it to Gateway International Raceway tonight to see what all this work did, and I ran terrible. My times were:
13.101 @111.49 w/ 2.183 60' Spun like crazy
12.873 @110.61 w/ 2.052 60' less wheel spin
12.767 @110.55 w/ 2.068 60' launched at 2500 rpm's feathering the throttle with no wheel spin

Before the cam and pulley, I had Borla with mid length headers w/ cats, Granatelli, and a lid. All of this being put down with a set of BFG dr's. My best time was around a 12.6 @110 and my best 60' was 1.88. Tonight GIR did have the street tire cars running outside the groove, so my I may as well have been runing down my street.
And I still have stock clutch, so a friend of mine wondered if it was slipping. But I am most upset with is my MPH. Weather here was good for August, and I thought I could hit 113 today no problem. My times get better my MPH get's worse. Why would this be? Could it be the clutch? <img border="0" alt="[Banging Head]" title="" src="graemlins/gr_banghead.gif" />

 

You have the same problem as I do. Torque! Tire spin = low ET's & high 60's. The stock clutch IS most likely slipping the same happened to me. I could not hook for nothing on an ashfault track. I went to a good hooking concrete track heated the DR's hooked great but the clutch smoked. So between the tire spin & clutch your loosing your time here. You might want to save for a good clutch but then you have to worry about your rear end if it isn't a 12 bolt or 9 inch.

Anyone else care to give an opinion?

 

2000 Camaro SS thank you for your responce, but I don't think that I am going to get another opinion since I am not asking about tires or 03 Cobras. I just love it when a stupid pos mustang can generate more of a responce (ON AN LS1 BOARD)than someone needing help to figure out why their cammed LS1 is running like ****. Last time I checked this is not, nor never has been a Mustang board. But, they just love to talk about that ugly pos. Ooohh <img border="0" alt="[hail]" title="" src="graemlins/gr_hail.gif" /> a Ford that can run with a Z06, yippie ****. Change this board name from LS1 tech to Tire and Blown 4.6 tech, because it is obvious to me that you all care more about that than helping someone with an LS1. <img border="0" alt="[bullshit]" title="" src="graemlins/gr_bs.gif" />
It's not like I expect everyone on this board to drop everything to respond to this, but seeing some of the bullshit that get's a responce on this board, I figured that maybe I could get a couple of other opinions. I guess I expected WAY to much out of this board <img border="0" title="" alt="[Roll Eyes]" src="images/icons/rolleyes.gif" /> .

 

IMO, I think if you get your sixty foots down a little more, you will definitely get better times. If your sixty foot before was a 1.88 on the 12.6 run, and your 12.7 run this time was with a 2.00 60', there is a tenth or two improvement there. I also think your MPH problem is due to a slipping clutch. I'm not a M6 guy, but that is all I could think of.
Hopefully someone else will chime in.

 

My 60 should have been better, and I do normally run about 1.8xx-1.9xx. But, that is not the problem. I took it this morning to get it dyno'ed on a Dyno Jet. I pulled 337 rwhp @6100 and 351lb-ft @4100. My air/fuel never went above 12.4, and the guy running the dyno thought that it sounded about as advanced as it can get. So now I have no clue what the hell is going on, but my hp is way to low. As a matter of fact, that is the same hp #'s I have seen some people pull with the same mods I had before the cam swap. I get the feeling that this is more than a slipping clutch.

 

Well a few things ,yes your sixty foots aren't very good but your dyno is awful..with your mods I would expect at least 370rwhp..even more with
ls6 intake which I dont' think you have..you mentioned you air fuel on the dyno being like 12.4:1..this is pig pig rich..you are supposed to be running like 13.0:1 on na cars..range is 12:8 to maybe 13:2 I have heard for best power.Didn't see any kind of tuning on your car..do you have a maft or any kind of autotap device..running super rich can easily kill your power and track times and thought your mph would be a bit higher but that can depend on a few things..also did you reprogram your rev limiter..with your cam you probably need to shift around 6500 or so and you need limiter raised to 6800 or 7000.I have mine at 6600 but have shift light at 6100 and still no I am not shifting high enough to get the added mph and power of the cam but bump the limiter at 6600..stock is only 6200 so without hpp or ls1 edit you can't raise it up.I would also check all the normal things..knock retard can kill power without you hearing it..again you need autotap or scanmaster or something..and I would change out fuel filter also ..you might have some misfire issues or plug wires not quite on their or plug not screwed in completely..easy to do on that damn number eight.again you need something like autotap to see whats up..do you have ses light??
can you see what codes are being thrown if you have ses light..so a few variables here broh..
also mph can vary greatly depending on how fast you shift.if you powershift..how high in rpm you shift and weather can have big effects ..even though two days have similar temps bar can make big differences in how cars run due to density altitude effects..and even having full tank of gas can lose a tenth..I so far haven't got over 110mph with my cam,ls6 intake and all my mods..but headers aren't installed yet.That is a corrected for alitude mph.I know I have to shift higher and maybe powershift to get times similar to other guys cars with similar mods.I felt a huge difference from my cam..sure it was worth 20 to 30rwhp and felt next to nothing when I did the pulley last week.I did turn my best time 13.60 at 107.2 uncorrected with a 2.27 60ft on street tires.Not very impressive but density altitude was 2400 or 2800 that day forget exactly..was on stree tires,didn't poweshift..shifted at 6000 or so instead of required 6500 to 6600 with my b1,
car is super heavy ,3880 with me in it nearly full tank of gas..etc..run was made on my tazzo vpc..no track near me but it has been very accurate much more than g tech for et and mph.
So you need to give me more info and if you don't have any tuning tools like ls1 edit or maft or things like autotap or scanmaster its time to get them..they make a huge difference in how your car can run..you can get that dyno number without the cam and headers from what I have seen.I have never dynoed my car..no dyno within 500 miles of me.It would be handy..even just playing with my maf translator and running just a bit too lean or rich the car can really dog out from being rich or get knock retard fast from being too lean.A dirty fuel filter can kill power also.they are cheap and easy to change and also easy to have a wire off or plug not in after doing all the mods you did.I have to install my tts headers soon and my new electric cutout.I have all but given up getting any good 12 second times without drag radials..I am at 1900 ft above sea level which doesn't help either and are local track is terrible for traction even with drag radials.

 

sorry forgot to give you my sig so you could compare mods.again the tts headers aren't on yet.

 

Oh slipping clutches are hell on mph and et and do suck big power away..mine was completely fubar after 5000 miles or so and just doing quartermile stuff against buddies no track runs.I would check out if the clutch is slipping..think you can do a test in fifth from what I remember..

 

I did have the PCM tuned at Thunder Racing and I speed shift at 6500rpms. I do not have MAFT, autotap or ls1 edit. I am seeing if one of my friends has autotap. All of my wires are plugged in and I am pretty sure that plugs are screwed in all the way, I have had issues with misfires before and this does not seem to be missing. I am also going to put on a set of o2 sims this weekend to see if the rear o2's are reading all of this extra air moving through and thus causing the mixture to become rich. This might just be a waste of money, but it can be worth it if I ever go to a ory-pipe (I should have had those deleted). Outside of this I guess if the autotap shows that everything is ok then maybe it is the cats that are eating up ALL the power this cam should make.