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need help with head n cam car

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Old Nov 15, 2009 | 09:25 PM
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Default need help with head n cam car

i need your help with deciding a head n cam package
ive looked around for weeks and im no farther than i was to start there are so many choices
im hoping if i tell you guys what i want then u can lead my to the right direction
i do like the texas speed prc stage 2.5 5.3 heads for the money but cannot decide on a cam
basically id like to make 425 rwhp and i dont want to have to flycut the pistons
i am planning on using an ls6 intake
the car will weigh about 3150 with me in it and i would like to run high 10's is that askin to much for a head/cam car
please help guys
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Old Nov 15, 2009 | 09:48 PM
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To run 10's you are going to need AT LEAST 450rwhp. What kind of car, and Auto or M6? The PRC heads you refer to are not that great of a head. A good set of CNC'd 243's would be a better bet if you want to stay with a stock casting. Going to need more info for a cam recommendation. Are you going to be using any power adders? What stall if you are an auto? what else is done to the car? can you drive?
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Old Nov 15, 2009 | 10:02 PM
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^^^ The PRC 2.5 5.3 heads are a great budget head. There are people making 450+ with those heads and a F.A.S.T intake. And timeslips are not all about rwhp numbers, a car with a good suspension will beat a car will similar horsepower or even more hp.

Look at those heads and a 228r, 233/239, Torquer 2 camshaft.

Im making over 400+rwhp with those heads and a small 226/228 camshaft, through a 3200 stalled automatic and factory Ls6 intake.
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Old Nov 16, 2009 | 01:04 AM
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Heads are where all the power is man.. Do not skimp out on heads. That is the absolute last mod you would want to go cheap on if your trying to make power. I am telling you from personal experience.. If your the kind who does not suffer from buyers remorse then fine.. If not then do not buy a stock casting head. I DO NOT give a **** what you read on this forum, or what you are conned into. Dont get fooled by internet flow numbers either. Do yourself a favor... If you want to make REAL power buy an aftermarket casting.. Im just letting you know before you dump 2k dollars like I did.

Just remember if you buy a stock casting cnced head, go to the dyno and make 400rwhp, and still running 12s at the track remember, you heard it here first.
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Old Nov 16, 2009 | 01:29 AM
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Go custom. I would PM Patrick G, PredatorZ, or even Shawn from VA speed. Tell them your goals and they will spec you a cam to exactly what your looking for.
Originally Posted by hivoltagedriver
To run 10's you are going to need AT LEAST 450rwhp. What kind of car, and Auto or M6? The PRC heads you refer to are not that great of a head. A good set of CNC'd 243's would be a better bet if you want to stay with a stock casting. Going to need more info for a cam recommendation. Are you going to be using any power adders? What stall if you are an auto? what else is done to the car? can you drive?
In a stalled auto car with his race weight and at least a 1.4x 60' he should be able to squeak in with only the 425RWHP he is after
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Old Nov 16, 2009 | 10:09 AM
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im running prc stg 2.5 ls6 heads out the box w/tsunami cam from texas speed. made 443whp n/a.
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Old Nov 16, 2009 | 12:39 PM
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Originally Posted by getsum27
i need your help with deciding a head n cam package
ive looked around for weeks and im no farther than i was to start there are so many choices
im hoping if i tell you guys what i want then u can lead my to the right direction
i do like the texas speed prc stage 2.5 5.3 heads for the money but cannot decide on a cam
basically id like to make 425 rwhp and i dont want to have to flycut the pistons
i am planning on using an ls6 intake
the car will weigh about 3150 with me in it and i would like to run high 10's is that askin to much for a head/cam car
please help guys
At this weight you can make close to that power and run 10's cam only just saying!!!!! my car is 3400lbs with just a vindicator 240/244 605/596 112 stock 243's and i got 10's in my m6 car Look at my sig for the power it put down and i drive this car everywere
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Old Nov 16, 2009 | 12:41 PM
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Originally Posted by hivoltagedriver
To run 10's you are going to need AT LEAST 450rwhp. What kind of car, and Auto or M6? The PRC heads you refer to are not that great of a head. A good set of CNC'd 243's would be a better bet if you want to stay with a stock casting. Going to need more info for a cam recommendation. Are you going to be using any power adders? What stall if you are an auto? what else is done to the car? can you drive?
NOT TRUE AT ALL look up Chrs1313 409rwhp Dyno is just really for tuning
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Old Nov 16, 2009 | 03:31 PM
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the car is a m6
its in a foxbody mustang.... the car may be lighter now but id say 3150 with me in it is a max
the reason i was thinking the prc heads is there are 2 guys here in town 1 has a 377ci ls1 with dart 225cc heads and custom cam and it only put down 411rwhp n high 3's torque......
another guy with stock bottom end ls1 fast intake and afr 205's just cleared 400 rwhp
both cars were on a dyno jet
keep coming with options and opinions
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Old Nov 16, 2009 | 03:36 PM
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also the car is only driven maybe 3 times a month...... so not much driving just a toy
and also i want a set up that is a true bolt on i dont want to have to flycut the pistons.... what can i go up to or get away with
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Old Nov 16, 2009 | 03:51 PM
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I have stock 243"s vinidcator cam no fly cutting car is 3400lbs M6 car run's 10.95's in the heat at 2000 foot d/a so in your car easy 10's with the same setup and my car made 455rwhp and 402rwtq with a heavy *** nine rear 4.56 gear and a 3.5 steel drive shaft. So your 3150lbs car with anything over 400hp with fly for sure
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Old Nov 16, 2009 | 04:59 PM
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Becarefull with saying that-lol. There are 2 versions of the Vindicator. You are running the Original. I also have it but have a -4cc piston so I can run aftermarket heads. I havnt had it dyno'd or properly tuned yet. But really-a cam as big as the Vindicator needs to be checked for PTV clearance. some dont mind being tighter than what is recommended. Oh and I would also go with some 243 heads from a good hand porter.
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Old Nov 16, 2009 | 05:03 PM
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Originally Posted by tillery
Becarefull with saying that-lol. There are 2 versions of the Vindicator. You are running the Original. I also have it but have a -4cc piston so I can run aftermarket heads. I havnt had it dyno'd or properly tuned yet. But really-a cam as big as the Vindicator needs to be checked for PTV clearance. some dont mind being tighter than what is recommended. Oh and I would also go with some 243 heads from a good hand porter.
I checked mine and i think it was some were in the 70tho area
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Old Nov 17, 2009 | 11:04 AM
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i'm running the tsp 2.5 heads with a 233/239 cam. #'s in sig with my old ypipe. #'s prolly closer to 44* now. PM if you need more info.
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Old Dec 2, 2009 | 04:50 PM
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ok thanks guys
also ive heard that the 233/239 cam doesnt pull good till like 3600+rpms
is this true
if i did the prc stage 2.5 5.3l heads which cam do you say to use................
i just picked up an ls6 intake off 02 transam to use what kinda power do u expect out of this setup?
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Old Dec 2, 2009 | 06:34 PM
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I have the close to what you are asking about.

My list
00 Camaro SS
complete stock bottomend
PRC 2.5 5.3 heads
Torquer V2 cam
SLP air lid
Pacesetter LT w/ORY and cutout open
underdrive pulley
SS4000 yank stall in fully built 4l60E
12 bolt w/3.73 gears
FAST 92/92 ported by me

My car has gone as fast as 11.19@120.3. This is a full weight car still has the AC, rearseat,no weight removed except for the spare tire and jack. I do got some suspension work also. So yeah with your weight and the PRC 2.5 5.3 heads and a MS3 cam with the heads set up for it you should easily run 10's on motor.
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Old Dec 3, 2009 | 08:34 AM
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Originally Posted by getsum27
ok thanks guys
also ive heard that the 233/239 cam doesnt pull good till like 3600+rpms
is this true
if i did the prc stage 2.5 5.3l heads which cam do you say to use................
i just picked up an ls6 intake off 02 transam to use what kinda power do u expect out of this setup?
I would say the power really starts climbing at that point. It's more of a top end street cam. But car still drives great at lower rpm's. make sure you get a descent tuner.
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Old Dec 8, 2009 | 07:51 PM
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there is a guy here in town that keeps tellin me to buy a torquer v3 for this combo......
he says he will help me with the tune and says if i do those heads and the tq v3 cam and he cant make it hit atleast 440 rwhp he would kiss my ***
he said that cam will make 410 or 415 with stock heads
he says in his experience they have a lot better bottom end than the 233/239
this is my first ls1 build up so i dunno?????????
what u guys think?
im not just set on these cams .............. im open for all options
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