hi all

looking for a cam for my 03 zo6

current mods:
kooks long tube 1 3/4 with 3" x mid section
BB 2.5" exhaust
RPM lv 5 m12 trans
c6 upgraded shafts, clutches & 3.73 diff
vararam ram air with power duct
monster stage 2 clutch
tick master adj master
dyno tuned

future mods:
fast 92mm manifold ported/Ls2 Tb
cam
port stock 243's (maybe?)

my gold is I'd like to be in the 450rwhp range with out giving up any drivability (if possible?) previous owner had the car tuned on mid grade gas and it made 383rwhp / 361rwtq so maybe theres a little HP left in a tune?

1st) can i reach or come close to my gold with out giving up drivability?

2nd) what cams should I be looking at?

3rd) is it worth to port the 243's?

I dont want the surging or dieing out in traffic if this is a pipe dream what more realistic?

 

I see you have a lot of drivetrain mods already, but you don't mention your clutch. If it's still stock, or a stock replacement; it may give you trouble down the line when you add power. You want 450? Do quality heads, which will come with springs. The H/C combo is the best way to optimize your performance. The quality of your tuning will determine your driving characteristics of any cam, but you won't need a donkey cam to get a big power gain. I had great success with Trickflow heads, and a Crane cam that was only 228-232@112. At 850 rpms,it had a nice lope, but I could ease out the clutch without using the gas pedal, after a tune.

 

Sorry I just updated the my post I do have a monster stage 2 clutch

what lift was the cam?

I guess i should mention I'm not looking for a 1200 rpm idle or a cam thats going to lope so hard it shakes the whole car, I have one like that in my hot rod truck and its cool and all but a long drive it gets annoying so truck really never gets driven any more

 

I made over 450 rwhp without a Fast intake. At the time, I had the following on my car.

Dart 205 heads
Futral Motorsports F14 cam
Ported Ls6 TB
Underdrive pulley
LG Pro headers
Halltech air cleaner

Here is the graph.


As for porting Ls6 heads. If you have a good ported it is a good option. I sold my Dart 205 heads and am running Larry Meaux ported Ls6 heads now. I have a lot more done to the car as well, but the setup I listed above was a really nice street combo.

 

The lift on the Crane cam was .600 intake, and exhaust. It was ground on +5 deg.,as well. Fantastic TQ everywhere, and a badass idle @850. With the power you plan, it'd be a good idea to brace up the diff. Even a built diff can get twisted into scrap, because the case is a weak point.

 

funny you said that i'm looking into a HPE brace didnt know if I'd need it at the HP i'm shooting for

 

Ecs big n/a cam would be cool

 

I run a TSP V2 on a 111 lsa in my z along with:

LG LT headers and catless x
GHL catback
ported/milled 243's
UD pulley
halltech CAI
ls7 clutch and flywheel
stock ls6 intake/tb

car made 432/410 (before the ported heads and catless x)
made 458/419 after both on a dynomite

I daily the car and it is a nice streetable setup that makes decent power with no surging.

 

whats your compression ratio now? any problems with pump gas? temps in traffic? what type of porting street or more of a race port?

 

LG G5X2....
Prior to my stroker build I ran this cam w bolt ons', Mildly ported 243's, Fast 92/92 made 450/420....

 

Talk to Mamo he can get just as much power if not more with a true DD type cam than most with an overcammed motor. Head intake cam etc pkg think hed be the guy to talk to and get it right the first time
mamomotorsports.com

 

You could either go with a pretty large/angry cam, or add heads and go with a much friendlier cam. I guess it would depend on what you plan on using the car for...

I have a 228-232 cam that makes 420/400 and drives like a stocker until about 3500 rpm. A good set of high port velocity heads could easily gain me 20-30 rwhp without impacting driveability.

 

I made 480/435 back on 2004 with an optimized package built around my new at the time AFR 205 heads that I designed for AFR.

It had a baby cam (224/228), drove like stock, and still got 28 MPG on the freeway as it was also alot more efficient besides being ALOT more powerful.

Thing is this....you have to be willing to invest the money to optimize everything to make that happen with perfect drivability. Most builds wont get there with larger cams and less than ideal drivability....the key here is to build a really efficient combination and the right selection of components is critical.

Im about to launch my own line of Mamo Motorsports cathedral heads (my latest and greatest port designs CNC ported in an AFR casting) and my 220 head is perfect for your application.

With an even better head than I ran in 2004 and more modern cam profiles its even easier to achieve what you want, especially at the 450 level assuming a manual transmission is involved which is naturally more efficient on the chassis dyno.

With the new head, a custom cam I could help you with, and a ported 92 with a ported OEM 90mm TB, Im pretty confident we could see 450 - 470 at the tire depending on how stingy or aggressive the dyno is with near stock like drivability and a cam small enough where there is no need to flycut pistons either.

Your going to invest a bit of money here but the transformation of the engine will be incredible and you will be able to achieve your goals in a car you could hand the keys to your wife to go get the groceries and she wouldn't be the wiser unless she mashed the right pedal.

Here is an in-car video of the combination I built in 04' running low 11's on street tires at 124 MPH. Note how smooth the idle is before I stage the car

http://vid307.photobucket.com/albums...o_Run_4-15.mp4

PM me if you have any questions.....I can set you up with everything you need to ultimately get exactly where you want to be or possibly higher.

Regards,
Tony

 

Tony Mamo, just sent you a PM

 

Not sure as to the exact specs on the porting work. Heads were done at rpm motors and are not maxed out, sti have stock valves as well.CR should be at 11.1 now. I run 91 pump gas (crap California gas) and have no problems with it. Temps in traffic hit 205-210 at a high and usually sits around 190. When the car is moving I never see much over 180*. Only change to cooking system is a 160 t stat and tune for fans to come on earlier

 

I've been talking with Tony Mamo back and forth I've decided new heads are out of the question my budget just simply cant support $2700 for a pair of heads even thought i'm sure i'd be grinning like a kid on Christmas morning LoL

ported 243's that I have on hand will be the heads I use, may not be the best choice but works with my budget so I guess a cam is what i'm focusing on at this time since I have the ported fast 92mm, 243's & ls2 Tb already

 

If you are using ported 243s, don't forget to have them milled for more compression. Adding a point of CR will really make a new cam sing. The bump in torque, and better fuel mileage are nice, too.

 

LG G5X1 228 232 .588 .574 lsa 112 Cam a good choice?

 

I have a custom grind comp cam for sale...

 

specs?