cam choices

[ebbett21]

ok months of saving up and researching and annoying workshops with questions here is my final cam kit choices for my LS3, manual.

Priorities ton of torque and choppy idle
TSP 231/236 112 1st
TR 231/247 113 2nd
COMP LSL Lobe 219/235 113 but comp can spec it 112 for more chop. 3rd

what would be your choice and why?

[Jason 98 TA]

I think your choice is between the first two camshafts. The 219/235 I don't think will get you where you want to be.

Both the TSP camshaft & TR camshaft will work pretty well. The TSP camshaft has a little less exhaust duration mainly for p/v clearance reasons. A lot more than 236-239 range & p/v starts getting close fast.

As a result based off the dyno testing we did we felt sticking with the 236 exhaust lobe was a easy call, it made almost no difference in power compared to extra exhaust duration, yet it helped keep the exhaust valve away from the piston & happy.

[papabearcamaro]

I am doing a cam the first week in August and I am researching the heck out of them. Your Comp cam choice is what Comp Cams suggested I go with but I am not sold on it. On one hand I do not want any driveability issues but on the other hand I want all the performance I can get from a cam and have that choppy idle also.
The shop I am using is calling for a Comp Cam but they have not gotten the specs to me yet. My car is an LS3 also.

[danhr]

I have seen two cars with the tsp 231/236 cam in it (one of them being my own). both were heads and cam cars with full bolt ons (the other car even had a fast 102/102 on it). Both cars only put down 460 rwhp and 420 tq on different dyno jets.

That being said, my car put down 405 torque with just headers and exhaust. Add a cam, ported throttle body, ported intake, heads, a tune, I only gained 15 tq with the 231/236 cam.

I will be swapping out cams this winter.

[Ovenmitt]

http://speed-eng.com/store/comp-lsr-...a-p-10253.html

^ This will be what ends up in my car.

[ebbett21]

,tsp 231 is proven cam and has all the parts my cars a manual 3:9.1 gear ratio so should be sweet abd deliver a cammy sound that stock hasnt got.
Im running 4>1 1 3/4 headers twin 3'' exhaust and i feel the car only gets up and go once i hit about 2300 rpm its sluggish down low what the big cam eliminate that or is it the headers?

[danhr]

what makes the 231/236 cam "proven"?

it has been through my experience that even WITH very well cnc ported/milled heads and very reputable tuners, that it is still only putting down cam only hp numbers and bolt on torque numbers. I can only imagine how low the cam only numbers are for the 231/236 cam. I have spoken with texas speed about this several times, and they have never got back to me with an answer, they just ignore me. If you look at the dyno chart that they list for their 231/236 cam, they cut off a portion of it... the portion that lists the correction factor. For all we know those were STD numbers on a day that was 33 degrees outside.

[Late Model Racecraft]

Our custom grind cam packages average 450-480rwhp with the factory cylinder heads and intake manifold. We offer our stage 1-3 cam shafts to give our customers the choice of how calm or radical they want there car to sound. Even our stage 3 cam shaft has great street manners with hardly any bucking at low rpms.

[4xchamp]

Too much duration and your car will run like shit with no power down low , remember the Camaro is heavy and torque is very important .
I went with a 225/230 TSP cam , full bolt ons , 4.10's and it's ok .
I also asked TSP about their dyno graphs and didn't get a response that made sense . I did notice the larger cam only gained a few hp up high and lost some torque down low hence I chose their 225 . I'm happy with it .
I'll eventually get back on the dyno .

[ebbett21]

has anyone had any experiences with this cam in there street car asa 226/236 .525/.525 110LSA CMP have this in carbed crate LS3 making 515hp looks like similar to hotcam.
110 lsa sure would be nasty idle but is it making good torque or is the tsp grinds better suited

[Ivan @ Southwest Speed]

I can't wait till people start busting out with sick duration cams....

240/260/270's........


Ivan

[2010 SSRS]

Originally Posted by Ivan @ Southwest Speed

I can't wait till people start busting out with sick duration cams....

240/260/270's........


Ivan

[Huggerorange73]

I've been researching like crazy on this as well....I've got an LS3 that has Kooks 1 7/8" headers & hi flow cats, along with a Roto-Fab CAI. I'm looking cam only, as I just simply don't have the $$$$ to start messing with the heads.

The first cam I was leaning towards ( 232/242 .601/.610 @ 114+2 ) would have been dangerously close on PTV. Bet ya it would have pulled some good numbers though, but imagine the carnage on a missed shift or over rev

Comp Cams suggested this cam ( .571/.590 228/240 on a 113 LSA ) which is a scaled down version of choice A.

Would love to hear the experts take on these choices....

[GQ4Life]

So with some of these cams theses problem with valve clearance?

[ebbett21]

a manual HSV GTS LS3 pulled 475 rwhp bolt ons 227/231 585 585 112 crow cam made by crow cams australia, idle 950 and says it has a hot sounding idle, not bad result there and ki ******* CROW CAMS SELECT PROGRAM *******

MODEL TYPE LS1 ENGINES
---------------------------CROW COMPUTER CARD----------------------------
| PART NUMBER 8711223RH Date |
| Cam type: Hydraulic Roller type Profile |
| ----------------------------------------------------------------------|
| Advance Ground on Cam: 1 Lobe separation: 112 |
| .050 VALVE TIMING |
| Inlet opens: 3 BTDC Closes: 45 ABDC .050 Duration: 227 |
| Exhaust Opens: 49 BBDC Closes: 3 ATDC .050 Duration: 231 |
| ADVERTISED VALVE TIMING |
| Inlet opens: 32 BTDC Closes: 74 ABDC ADV Duration: 286 |
| Exhaust Opens: 79 BBDC Closes: 33 ATDC ADV Duration: 291 |
| Inlet lobe lift at TDC on the over lap:.060 |
| ----------------------------------------------------------------------|
| Valve lift Inlet: .5848 Inlet Rocker Ratio: 1.70 |
| Valve lift Exhaust: .5857 Exhaust Rocker Ratio: 1.70 |
| |
| ----------------------------------------------------------------------|
| RECOMENDED VALVE TRAIN COMPONENTS |
| Valve Springs: Spring height: Collets: |
| Retainers: Pushrod: Lifters: |
| H/D Timing Set: |
| ----------------------------------------------------------------------|
POST CODE
These HIGH PERFORMANCE components should be checked for suitabilty by the
person installing them as engines of the same group can vary in
valve length spring installed height and collet grooves
IT THE SOLE RESPONSIBILTY OFF THE INSTALLER TO CHECK SUITABILTY
ALL ENGINESnd of nice on the valve train heres the cam card specs

[gomer]

I did a TSP 231/236 cam only car two weeks ago. It had pacesetter headers, cam, valve springs, pushrods, "home made" magna flow cat back, and TSP cold air. The car still had the stock pulley on it. After I tuned it, it made 463rwhp 423rwtq. That's the best "cam only" car I've done so far. I'd consider that "proven". I'm doing an install of that same cam, but with the PRC heads on a 2010 LS3 vette next week. I expect it to go around 495 or better rwhp. Of the 10 or so cam only 2010's I've done, the TSP cam has made the most rwhp and rwtq. BUT, I'll have to admit most of the ones I've done have been cams that were used LS1 cams that the guys have bought for $200.

[Bonemaro]

I like mine though it's considered a mild streetable cam-

Comp cam
duration 227/239
lobe 114
valve lift .613 .623

http://www.camaro5.com/forums/showthread.php?t=73140


Sorry if this doesn't fit the bill for this topic, but i just wanted to share my set up.

[10aSSee D]

You should check out the ADM stage2 cam. I have it in my car and it drives like stock but has a good chop to it as well. It also works well with my maggie!!

[Roger Ramjet]

I used EA Pro to model these cams.
I didn't consider #2 because of another posters comment.
Both #1 and #3 produce less torque below 4000 RPM than the factory cam.
Cam #1 gives up 50 lb-ft of low end Tq to get a 40 HP top kick.
Cam #3 gives up 20 lb-ft of low end Tq to get a 30 HP top kick.
Either of these cams would need 4.30 gears to be good on the street.

[4xchamp]

Originally Posted by Roger Ramjet

I used EA Pro to model these cams.
I didn't consider #2 because of another posters comment.
Both #1 and #3 produce less torque below 4000 RPM than the factory cam.
Cam #1 gives up 50 lb-ft of low end Tq to get a 40 HP top kick.
Cam #3 gives up 20 lb-ft of low end Tq to get a 30 HP top kick.
Either of these cams would need 4.30 gears to be good on the street.

My point exactly .
You need torque down low unless it's a drag car turning high revs .
My first cam gained almost 30 hp , lost 20ftlbs low and 5ftlbs at peak . I installed a tsp 225/230 112 since but haven't hit the dyno yet . Running pretty well though .
I've got a feeling with these small motors unless you go crazy with the revs cams slightly larger than stock are the way to go . In retrospect I probably should have stroked it right away and may do so this winter .

[walhan_qtr]

I will be installing the TSP 231/236 cam kit next week, will post a dyno chart when I get it

[ebbett21]

The stock LS3 cam is actually quite good street cam im actually thinking just leave the engine as is ,
If i do change the cam its gotta produce more torque rite thru the rev range than the stock otherwise id be disapointed. I donot wanna rev the car to 4000 rpm to get it moving but 2000 onwards.

[GQ4Life]

well most the cams I was looking at said good power 2000 to 7000.. JRE's cam from what I seen on cars it installed seem to have a nice range

[ebbett21]

ok ive come to decision and tsp 231/236 on a 112 is the go for two reasons its the only cam ive come across with alot of dyno data and reports and the fact the cam is designed for LS3, ITS obviously gonna have a nice idle with an improved exhaust note, the LS3 Standard cam is quite tame.
Now on tsp website i can buy the kit but im no mechanic so dont have a glue what to order.
Guys can you tell me exactly what parts i need for the swap like bolts balancer and gaskets ect pushrod lenght blah blah yea BABY ITS GONNA ROCK

[steeleshark2]

What would be the difference in going to a 111 LSA with the 231/236 cam? Wouldn't it help down low a little?