I sent a number of Sponsors the same letter requesting their cam recommendations based on my set up. The results were interesting. Check it out. THE NAMES HAVE BEEN CHANGED TO PROTECT THE INNOCENT!
The letter I sent:

I would like your recommendations on a cam.
This is what the car currently is:
2000 Camaro convertible. 346ci ,FTRA,Lid,MAF,stock TB, LS1 intake, MTI T-1 cam, stock heads,stock bottom end, PT4000 Yank converter, TH350 w/brake, 4:10 with a 100 shot = results of 10.85 @ 123 w/1.43 60� so I�ve been pretty happy but now �..

This is what I am going to.

Camaro convertible. 346ci ,FTRA,Lid,MAF,stock TB, LS6 intake, LS6 S2 heads, ???????? cam, stock bottom end, PT4000 Yank converter, TH350 w/brake, 4:10 with a 100 shot.

The results:

Company: #1
Recommendations: 224 / 228 113 LSA
Comments: I would suggest a split pattern cam with NOS you will need more exhaust flow. With LS6 heads we have had great success with a 224/228 113 LSA cam. It will
work with your converter, but I think your way over geared for NOS.

Company: #2
Recommendations: 224 / 228 .534 / .539 114 LSA
Comments: I would recommend the Comp custom 224/228- 114 lobe sep. This cam has .534/.539 lift with 1.7 rockers.
The high lift version may have piston to valve clearance problems, you can try 1.8 rockers with this setup to give you the extra lift, if you don't have any clearance problems. The cylinder head set up (valve size) and how much they have been cut are important. The NOS usually like a wider lobe sep., but if you are planning on running mostly NA, go with the 112

Company: #3
Recommendations: 224 / 224 .581 / .581 112 LSA
Comments: your car seems to run well. We use the 224/224 .581/.581 on a 112 in most stage 2 head applications.

Company: #4
Recommendations: 224 / 230 .581 /.592 114 LSA +4*
Comments: assured me that there will not be any P/V clearance issues with this cam.

Company: #5
Recommendations: #1 224 / 232 .584 /.584 113 LSA
#2 232 / 236 .584 /598 113LSA
Comments: The first cam will fit with no problem and have a slight midrange advantage. The 2nd would require slight valve notches in your pistons and have more top end to work with your 4.10's

Company:#6
Recommendations: 229 / 229 114LSA
Comments : I would recommend a 229 cam on a 114 LSA. This cam will work really well with nos and your stall. My only worry is having enough gearing to finish. Without a lock up converter, I'd have to imagine you will be over 7000 RPM on the juice.
I have a customer who was running 10.20's @ 133ish with a similar setup on NOS, but with a TH400 w/out a brake. I believe he also ran 11.0's on motor.

So now it's your turn what do you think? <img border="0" alt="[jester]" title="" src="graemlins/gr_jest.gif" />
Oh, additional info, the car is pretty heavy est. 3600#, heads are milled about.035", 2.055"/1.60 valves,heavy double springs

Sound off!
Eric

 

Company: #3
Recommendations: 224 / 224 .581 / .581 112 LSA
Comments: your car seems to run well. We use the 224/224 .581/.581 on a 112 in most stage 2 head applications.
-----------------------------------
That one would get my recommendation. It is an EXCELLENT all round cam.
P.S., I will keep my amused comments of some of the other recommended cams quiet...LOL.

Good Luck.

 

Hey y2kss1603. Did you tell them the heads would be milled .035? Some of those cams are big.

 

Bad02WS6
No, in fairness to them, I didn't mention it at first.(should have huh!) But a couple did asked questions before making their recommendations. #4 as well as a couple others did know!

 

What? No recommendations! Well then...TTT

 

The fact that you have a PT4000 converter makes me think that your not as cocerned with driveability as your are with performance. So IMO, you'll probably want a more agressive cam than a 224/224. I think company #4 is on the right track... but my opinion though.

 

I'm gonna vote for Company 5, the 332-336.

The gearing would also concern me. Your RPM range with that cam would most likely be in the 6800 range, unless you have the lightweight valves. So no matter what you do, stay with the gearing that you have, and adjust accordingly. 3:73's are a great alternative in an auto, on the spray. But, those are GREAT times you are running in a vert, especially with an LS1 intake!! I hope you plan to change that when you put the heads on. Just let me know if you need a hand. I'm borred, still waiting on mine to get finished.

I dont know how important steetability is for you, but I ran the 332-336 with lift in the 600 range, on a 112 ls last year. It's not too bad. real lumpy. With your heads milled that much, I'm gonna bet that you will need to notch the pistons, but you can do that with the pistons in the car. Use head studs, and you can bolt it all together & check P to V clearance. Let me know what you come up with. See you April 2, opening day at Stanton?

 

I find it amusing you told all the sponsors you had FTRA but didn't mention if your heads were going to be milled <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Fenris Ulf:
<strong> I find it amusing you told all the sponsors you had FTRA but didn't mention if your heads were going to be milled <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Well, it slipped my mind, in fact at the time I did the survey the heads were still being worked.
Do you have any constructive input or recommendations?

Eric

 

If your only runnin 100hp shot then a single pattern would be best. Get a 232 xer cam. Or the biggest cam that will fit if your gonna keep the 4.10s

 

I agree, with such a small shot of N2O I don't think you would see any benefit with a split duration.

Lift should be high to take advantage of the stage II LS6 heads.

I like company 4's recommendation IF you change the gearing and if you want it to remain very streetable. I like company 6's recommendation if you want to keep the current gearing and if a more radical idle doesn't bother you. You will need at least a 27" tire to keep the RPMs under 7000 if you don't lock the converter and if you pull 130 MPH.

 

The 232/236 114 cam will spray well out of the hole, but NA the torque may not be there on the 60'. A 112 LSA +4 as suggested may help NA.

228/228 114 +4 may be more drivable if you care about that.