pianoprodigy

iTrader: (1)

I'm gearing up for a new project. I was not happy with the end result of my Heads and Cam selection on my Z06. The power it made was not at all what I expected or desired. I'm not here to point fingers or place blame at all. Rather, I'm going to be starting on a new project, and this time I want to buy the Heads and Cam as a package to avoid the mismatched combo I have.

With that in mind, the car will be very light. 2700 lbs might be a bit optimistic, but it'll be close to that. The car will have 4.33 gears, so I'd like to take advantage of the higher RPM power and be able to spin the motor to 7k RPM or close and still make power. The car will also be a daily driver, so I don't want anything TOO insane for a cam. I think 450 rwhp is a very reasonable goal especially with a cam that pulls to 7k.

It seems that Cartek's packages produce great results at the track although I'll admit that most that I see are done at ATCO or some other track that tends to produce ridiculous times. I'm planning on calling around to a few shops to get their input, but before I do, give me your opinions.

And yes, I know traction is going to be an issue.

just-a-z

iTrader: (25)

If I had a Z06, i would give LG a call and see what they can do for you. You can also just wait for PatrickG or Geoff from Thunder to chime in and recommend a package for you using the LSK lobes.

pianoprodigy

iTrader: (1)

?????

gnx7

iTrader: (28)

Sell the 4:33 setup to a rotary FD owner as you won't need the torque multiplication that is for sure. You will just blow the tires off. Find a 3:90 setup and proceed from there. That is about perfect in our FD's.

High end: AFR or ETP heads work well and others too.

I would read the thread from (Patick G) about the cam he is testing (480rwhp+ goal n/a on stock displacement). He is supposed to dyno shortly with some results. Milled AFR 225's, FAST 90 intake, 1 3/4" long tubes, and a healthy camshaft with SD tune.

Photochop

iTrader: (74)

Whats the big deal about these LSK lobes I keep hearing everyone rap about? I mean I understand that they help to produce more lowend and scientifically are better matched for these engines intake capacities, etc....but I can't justify spending more money on having to change out super heavy duty springs that arent cheap more often. The dyno numbers look impressive but I have yet to see any track times out of a car with one of these cams. 6 speed cars can get a buzz talkin dynos, but when it comes down to it my 348 rwhp cam only auto car outruns a heads/cam 6 speed at the track..?

Somebody please direct me to a good thread with some good ET gains at the track with one of these cams so I can see what all the rage is about.

On another note, Id give cartek a call.
A friend of mine has an 02 zo6 with their heads/cam package, spec stg. 4 clutch, built rear with 3.90s, longtubes, ORX and a stinger catback...that thing is one of the fastest cars Ive ridden in. Hes raced several 500+ rwhp 03 cobras and hung with them and a 11.2x bike on the highway and pulled away from it around 110...its pretty sick.

eamador11

You are way off already considering 4.33 gears. That is totally unnecessary and will be un-driveable. 450rwhp is not that hard to do...AFR heads and LG G5x-3 on a 114. done! Call LG motorsports for that exact package kit. You need a good tuner too.

30th t/a

iTrader: (51)

AFR 205s heads, G5x3 114 or 112 cam and LSX90mm. this is the most proven setup i ever seen. you should see 470+.

get 3.90s or 4.10s at most....definately not 4.33s!

pianoprodigy

iTrader: (1)

The 4.33s are already installed in my FD and actually will work quite well for my application assuming I can get traction. As you can see in this comparison I made in Excel, the revs will fall considerably less at each shift with 4.33s and keep the car in the bulk of its powerband. As you can see, with the 4.33 gears (and using my pathetic H/C dyno chart on both gear ratio comparison), the 4.33 car will stay in the upper revs during a race and thus make more average RWHP throughout the race. The red areas indicate areas where the revs WILL NOT be during a race assuming a 6500 RPM shift.

The lowest gear ratio available will be a 3.90 unless I swap rear ends which I'm not going to do just yet. I can always swap to the 3.90 later on if I decide it is not right for me because of extreme traction problems.

pianoprodigy

iTrader: (1)

While I am a fan of LG, I would like to see more independent results of this combo. A semi-local guy has this combo and I don't think he even makes 450 rwhp...

pianoprodigy

iTrader: (1)

The gears are already installed. I don't think it will be as bad as you think, but like I said, if I'm wrong, I'll swap out to a 3.90.

Sigforty

Dart 205s with a F14 cam and the usually bolts ons and I made 451 rwhp. I still have room to has the LSX setup with the 90mm TB.

JakeFusion

iTrader: (7)

AFR 205 Cylinder Heads with 62cc Chambers
Futral F13 230/232 .595"/.585" 112+2 LSA Camshaft
7.4" Hardened Pushrods
Comp Cams 850 Hydraulic RollerxLifters
Cometic 3.910" MLS Head Gasket Set .045" Compressed
Powerbond Underdrive Pulley
Mezeire Electric Water Pump
FAST LSX 90 Intake Manifold and NW 90mm Throttle-Body

SCR on a stock LS1 = 11.2:1 and the DCR is 8.5:1. Will pull up there and produce a lot of power under the curve. Not to mention it's a proven "package" from what I've seen. The PtoV clearance is a little tight with the F13 on a 112+4 but backed off to a 112+2 you should be fine.

I think you could pull 470-480rwhp and 430-440rwtq out of that with a conventional drivetrain.

kumar75150

wait, this is for the RX7 right?

pianoprodigy

iTrader: (1)

yup...