nate90

Hey guys not much to explain but just cant decide on what heads and cam combo i want from tsp . Just curious on what some of you guys have and numbers you are putting down.

alexus6798

iTrader: (24)

You are going to get 100s and 100s of different answers. If you search this forum, you will find many different combos including dyno sheets and track times. Best thing to do is call Texas speed and talk to them about your goals and expectations for your car.

HCI2000SS

iTrader: (2)

I have PRC stage 2.5 5.3 heads from Texas Speed, and really like them for the money

MikeWS6

see sig. good street car.

spordee1

iTrader: (22)

Hello Nate : I would like to apologize for hi-jacking. I am going to punch a LS2 to 454 cu. in. I wanted to purchase a PRC 285 set of Heads and a sheet metal intake, both from PRC. They have a tall and short set of sheet metal intakes. I wanted to know if the ports are mating up perfectly. thx, what's your opinion.

R6cowboy

iTrader: (3)

Is longevity important? Do you want the valvetrain/valve springs to last or is that not much of a concern?

mebuildit

I have an '06 GTO put TSP PRC 215's CNC with Comp Cams V3 and Kooks. I'm very pleased with the set up. Just wished that I had a Fast 102 on top.

R6cowboy

iTrader: (3)

FWIW, Comp Cams LSK lobe (Torquer V3 intake lobes) is a poor choice for a street car, even though it makes good power. Has a very aggressive lobe profile and beats-up valvetrain rather quickly, especially if lightweight valves aren't used. This is why Comp Cams warns on their website that the LSK lobes are for racing use only and not recommended for street use. Would be nice if TSP would warn/notify their customers about that when recommending cams to them.

spordee1

iTrader: (22)

Hello Cowboy, I'm very new at this. I bought a MS3 Comp cam from TSP. It was label for dragstrip, but I wanted all I could get. I backed off to a 112 lobe, but it is still very aggressive and makes great power. Is this a cam that would be hard on a set of 243 Heads for LS6 with light weight valves. Can you recommend something mean with a 114 lobe. thx

02ls1gun

PRC 5.3 2.5/Torquer V3. LOVE IT.

R6cowboy

iTrader: (3)

The MS3 cam uses Comp Cams XER lobes (intake and exhaust), they are aggressive lobes but not as much as the LSK lobes (Torquer V3 and MS4 use LSK intake lobes). What do you mean you backed off to 112 lsa? Why 114 lsa? Depending on the vehicle setup a smaller duration cam with a lower lsa could make better all around power and more performance than a larger duration cam with higher lsa. Bigger is not always better and rarely is. No one can make a good cam recommendation without knowing the vehicle setup (engine specs, trans, gearing, tire size, etc) and intended vehicle use/purpose. I suggest speaking to many different reputable cam vendors to increase knowledge and understanding of what you really want before putting your eggs in one basket. In no way, shape or form would I consider myself a cam guru but I have learned quite a few things over the years.

R6cowboy

iTrader: (3)

What else consists of your valvetrain? I had that exact heads and cam setup once with .675 lift dual springs & heavy stainless steel 2.02/1.57 valves. I LOVED IT too until I found out it caused valve float at peak rpm's and intake valve springs started failing after a whopping ~6k miles. For a 99% street car, it was a garbage setup prone to failure.

spordee1

iTrader: (22)

Hello Cowboy, I have Comp 921 springs, Lunati 72532 lifters, Yella Terra Platinum 640 rockers. Power is great, but I do not enjoy driving a race car. I just assumed that I could get bye on 112 lobes by-passing the 110 lobes for the big boys. I am considering a down-tuned 454 or just buying a C7, too much noise, too strong a clutch and too much rear end in the present Camaro.

02ls1gun

Sorry to here that. I havent had issues with valve float. What were you spinning it up too? As far as the valve train goes: .650 springs, ls7 lifters, push rods, comp trunion upgrade. Mine isnt a daily driver nor is it designated for the drag strip.

BrntWS6

iTrader: (7)

No issues with my setup so far either after a couple years. If I could do it over again I would definitely do things different though and pick a different cam.

R6cowboy

iTrader: (3)

I'd spin it to 6600 rpm tops, but not often. The .675 springs I had were also another part of the problem. My car has always been a toy and rarely gets driven. Hope you have better luck than I did with that setup.

Yeah it wasn't until after the fact when I spoke to a bunch of LS cam experts and heard what their thoughts were of my previous setup. One thing every one of them said in common was they would never spec an LSK lobe for a street car.