davidtcpa

So I decided that I am getting a cam, springs, Yank 3200, and Fast 102 for my LS2. I already have headers (with high-flow cats), UD pulley, K&N intake, and a tune (it will obviously be re-tuned).
Can anyone recommend specs of a cam with the above mods. I don't mind a somewhat aggressive cam, but I don't want to sound like the car is going to stall out while stopped at a light.

My goal is to get the car to high 10's, low 11's and 450+ rwhp if possible. I know that I may have to port the heads to get there, though.

Thanks.

winters97gt

EnglandGreen Mayhem II will get you high 10's and you should see around your hp numbers. You will probably need a 1.55-1.60 60ft at 450rwhp to get in the high 10's with a good DA.

0Brian@RPT

The stock LS2 heads need some work to get more airflow though them. With the heads that I have installed, the Livernois Heads are works of art. These are ported and they perform the valve job. These heads with the Mayhem II or my personal favorite, the Whiplash II will meet those goals. The Whiplash II is really lopey and is a attention grabber at any car show. Feel free to contact me and I can help.

I was cutting 1.65 sec 60's and running 11.5 sec with a full weight Trans Am making 377 rwhp. Those stall converters will eat up some dyno numbers but, haul *** at the track. I was using the Yank SS4000 and MT ET Street DR's.

davidtcpa

the plan is to dyno the car before the Yank is installed, then dyno it again after the Yank is installed, so we know excactly what the loss will be. I have today to discuss cam kit options with HP Sales before they order the parts, so I was looking for advice with the cam since I have no clue of cam specs, and I will just have to leave up to them alone to decide for me.
I dont mind a lopey idle, but not too much where my car sounds like it is going to stall out!!

GTkiller97

I just had a cam put in my LS2 along with fast 102 and ud pulley...my car is a 6 speed and has a very good size cam in it, it put down 440/402 in 98 degree heat...450+ is gonna be very tough to reach i think unless you have headwork.

0EG@EnglandGreen

Our Whiplash II cam will get you there with a good tune and stock heads.

Stephen

Add heads and you'll be north or 500 wheel horsepower.

Vito.A

Take a look at the L92 heads. They are a bargain from GM ($149 bare and $375 complete) and almost identical to the LS3 retangular port heads. They have a lot more potential than the cathedral port LS2 heads. It's actually cheaper to buy new L92 heads than it is to have your LS2 heads ported.
The only drawback is you have to replace the intake manifold and if you are already getting a FAST you are set. You will also need 8 offset LS3 intake rockers.

Neumonic2002

What are your cam specs, nice numbers by the way

AH2005C6

c6 2005, American racing headers, x pipe, zo6 bimodal exhaust, eforce supercharger. What cam would you recommend?

winters97gt

I'd recommend you start a new thread in the appropriate forum(C6FI section) and not hijack somebody's thread.

cv67

If you can get yourself a better head youll get your goals with running plenty less cam. 240+ deg HR on the street isnt exactly practical unless you dont care about that. It will sound tuff of course.

Dont see how youre going to get 10s out of just tossing a cam at it. Have to see it to believe it
not a c6 expert though.

winters97gt

With his stall and the 102, I don't see it being that unrealistic by any means. If he can dial in his 60ft, and get some great air, I see it happening with his mods.

Internal Engine Modifications LS2
10.58 @ 131.43 - DSP300C - 07 M6 – al/fw, CAI, cb, ewp, pfast H&C, hdrs, 4.10, 100maf, tune, DR - (4334)
10.59 @ 130.09 - Dennis50NJ - 05 A4 Z51 - CAI, cam, cb, conv, ewp, pfast, hdrs, 3.73, ptb, tune, DR - (4302)
10.66 @ 133.29 - Braciole - 07 M6 - CAI, cb, dp, ewp, hdrs, H&C pfast, 4.10 tune, DR - (4300)
10.82 @ 127.85 - Silver93vert - 06 A6 - CAI, conv, fast, H&C hdrs, udp, tune, & more DR - (4583)
10.84 @ 125.83 - Tony B4 - 06 A6 - CAI, cam, cb, conv, hdrs, ported int/tb, udp DR - (4014)
10.87 @ 125.33 - Tek-Newbie - 05 A4 - CAI, cb, conv, H&C, hdrs, 3.42, intake, tune, DR
10.90 @ 126.00 - Thesubfloor - 07 A6 - CAI, cam, conv, 3.42, hdrs, tune, DR - (3691)
10.96 @ 125.59 - Mike4572 - 07 A6 - CAI, cam, conv, 3.42, hdrs, PI, PTB, Z06 Muff, tune, DR - (4416)
10.99 @ 126.67 - Joe G - 05 M6 Z51 - CAI, cb, cam, hdrs, 4.10, pfast, tune, DR - (4710)
11.01 @ 127.04 - Pete@Championmotors - 06 A6 F55 - CAI, cb, Conv, H&C hdrs, 3.15, tune, DR - (4615)



Internal Engine Modifications LS3
10.61 @ 131.81 - Turbovic - 08 M6 - cam, gto skinnies, hdrs, pi, tune, Z06 susp,DR - (4621)
10.63 @ 132.44 - Max@Cartek - 08 M6 - Cartek 4X H&C package, DR - (3644)
10.66 @ 131.68 - Doug@ECS - 08 M6 Z51 NPP - Blistens, H &C CAI, hdrs, 3.90, tune, DR - (3198)
10.73 @ 131.28 - Ls3yeager - 08 M6 - CAI, cb, cam, gto skinnies, hdrs, ported tb/int, udp tune, DR - (3972)
10.78 @ 127.17 - Theofel - 08 A6 - CAI, cb, cam, conv, ewp, hdrs, 315, tune, & more DR - (5107)
11.03 @ 126.93 - Socalz06 - 08 A6 - CAI, cam, conv, hdrs, tune, DR - (3900)

HC Mechanic

How would that Whiplash cam work in an auto car? The two dyno runs I see posted are of manual cars.

And the torque in the normal driving rpm's (2-3k) look a little soft. It doesn't look like the torque is on par with the stock cam until about 3500rpm.

Were both runs using the same correction factor?

Joe_G

PM Justasheet (Jeff, with the silver Vert who you met at Towers) and find out what he has, maybe you guys can meet up and go for a ride before you make your choice and see what you think about his setup. I think it's nearly exactly what you are doing.

Here's his best 1/4 so far. If he put on skinnies and did a bit of lightening he'd be close to a 10, maybe could get it on a cold day. I got .2 from skinnies and taking out my seat.

FloydSummerOf68

With the Yank, Ported 102 and decent air you should already be close to a 10 second pass.

Add a decent cam to these cars and 10s should be a cakewalk.

davidtcpa

Joe:

Jeremy and I discussed it yesterday and he ordered one already. It will be there Friday. Now I am just waiting for Tom to ship the Yank and I will be ready to go. I mailed him a check yesterday, and it takes 5 days shipping from AZ, so hopefully by the end of next week it will be here and the following week the car will be at HPS.

Thanks for the advice. See you soon!!

-D

Joe_G

LS3's can get high 10's with bolt ons and a stall...at least two can, Theofel and Hoxxoh but both have skinnies & seat out, and Hoxxoh has a really light car (Theofel has a bar, heavy exhaust and a hood that weighs a ton). Both gentlemen are well experienced drag racers and have well thought combinations.

The ls2's like David has have a severe disadvantage of smaller displacement and worse heads. Plus I think David has the A4 trans so doesn't have the advantage of that super low first gear that A6 guys have. Few ls2's have 10 second slips with boltons, and the two that do have high stalls and gears IIRC, and I think reside in New Jersey! (where there are many other very fast guys to give tips...not that the two that have the slips need tips, they are very well experienced).

I wouldn't call a 10 second slip in a ls2 a cakewalk even with a cam...but definitions can be different.

And David hasn't paid the dues of years at the drag strip and hundreds of runs all the other 10 second guys have learning how to launch and drive....I say this so he's not discouraged if he doesn't get a 10 second slip. It isn't really that easy I don't think. A cam only ls2 is not a 10 second machine without a lot of practice and some great air. Particularly with a 3200 stall. 4000+ stall is a different story.

Your car is quite fast, BTW. :thumbs

davidtcpa

Joe:

You are right about the experience at the dragstrip, but I will learn! Also, I have an A6 (2007). A4's were only in 2005.

After Jeremy is done (about 2 weeks), I would love to join you guys for a few pulls at PBIR.

Joe_G

Sounds great. We'll get you down the track. But don't get upset when you're mid to high 11's....it's summer in Miami! I could only muster a 11.3 last week and frankly was surprised I was going that fast. I was running 122 vs my 126 in the winter.

davidtcpa

Isn't that what a meth kit is for?