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Advice for how to reach 410hp-450hp Budget build.

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Old 02-08-2010, 06:28 PM   #1
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Default Advice for how to reach 410hp-450hp Budget build.

I've been searching around for parts but there are so many combination's I can't wrap my head on what to get a cam, heads, what year what vendor to buy from??

So far this is what I got:

Stock 806 heads
LS6 Intake Manifold
Custom Long tube Exhaust with cut outs/
80mm TB
Through T56 transmission
Aluminum Driveshaft.


Actually I'm aiming for at least 450fwhp nice flat power curve to redline. That's all nothing special I'll be happy with that.

I'm on a budget build here so what suggestions would yield me the numbers I'm looking for ALL MOTOR?


Get a 500+ lift Cam?
Roller Rockers?
Swap heads to 243's or 241's?
Computer Tune?


It's going in my S14.

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Old 02-08-2010, 06:38 PM   #2
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I've been reading that a cam alone will get me 400 at the wheels. Is that possible with my setup?
They got 90mm TB's on ebay for $100 are those any good?

I'm so new to LS1's I don't have a clue to what their potentials are. So please bare with me...

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Old 02-08-2010, 07:47 PM   #3
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with ported 243s and the right cam youd be at 400 easy
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Old 02-08-2010, 07:53 PM   #4
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good head cam combo you will dyno RWHP around ~42x or so
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Old 02-08-2010, 08:04 PM   #5
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What about if I keep the 806 heads with a tr224 or 228r cam, roller rockers and a moderate tune? What numbers would I expect? I've read with 241 heads 380ish whp ??

Oh and how about I raise compression with a thinner gasket with cam and my heads? Or get them milled?
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Old 02-08-2010, 08:45 PM   #6
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Damn now I need to decide what pushrods to get there are so many and at different length's and types, also the lifters LS7 rollers is that the one I need to get?

I could use a good run down of what to get can someone please help with the basic prep work and parts please?

What about these 241 heads http://cgi.ebay.com/ebaymotors/LS1-L...item35a6d727b6
243's are a bit pricey and I don't think I need them to reach my goal.

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Old 02-08-2010, 08:57 PM   #7
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push rods are one of the last things to get .
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Old 02-08-2010, 10:53 PM   #8
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Got a cam only 224/224 with stock heads. Making 400+ at the tires. Have ls6 intake with an underdrive pully and slp lid, patriot gold springs and a double roller timing chain. All can be done fairly cheep if you do the work yourself. If not tends to get pricy. pm me with any questions.
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Old 02-08-2010, 11:46 PM   #9
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You don't need roller rockers. The stock ones were designed very well and will work with your goals. I made 380rwhp through a cammed and stalled a4 car. So you should easily get 400+ rwhp with a cam only set up. I would have your throttle body ported to help
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Old 02-08-2010, 11:58 PM   #10
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The tr 224 cam is a good choice and I'd get it on a 112lsa for a little choppier idle and more midrange torque. I'd give Thunder Racing a call and they can give you a rundown on everything needed. A camshaft swap cost alot more than just the price of a cam. You need the cam, valve springs, all accompaning gaskets, push rods, new balancer bolt as they can only be used once,while your there you may as well replace the oil pump with an LS6 pump and put on an underdrive pulley and change the spark plugs and wires for a complete tune up and then have everything tuned afterward. Not to mention all of the tools needed to do the job that you may not already have. Go to ls1howto.com and go to the f body cam install thread. It will explain in detail what you will need to accomplish this. I'm not trying to scare you away from the process. I'm just informing you about everything in store to do such a task as I know beginners can easily overlook the other nessesities. BTW once you do put in a new cam that has been properly chosen for your set up (preferably by a cam expert, thunderracing has a great rep for speccing out cams) your car can become a drug and speed the fix. Haha
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Old 02-09-2010, 12:32 AM   #11
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Thanks Hamrdown,


I think from what I read so far these 243's are the talk as the best upgrade. That's all everyone talks about on a bunch of threads. But they have the same size valves as my 806's and 10cc more intake 5cc on exhaust. Doesn't sound like much to me.

So can you guys confirm that with my set up getting a 224 cam or slightly better along with springs,lifters etc as part of a complete tune up shall bring me very close to or at 400rwhp????

I'm not a big drag guy I'm getting into road racing so around 400rwhp should be perfect I'd like this engine to have good power across the entire power band with a nice old school lope.


BTW the bottom end is going to the machine shop for cleaning and what not.

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Old 02-09-2010, 12:44 AM   #12
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I wouldn't change the heads unless you plan on getting a fully ported set with a good valve job. In my cam only a4 setup (in case you don't know automatic cars especially those with stall converters dyno much lower at the wheels than manual cars) that I got 380rwhp with a mild cam I had bone stock '98 peremiter bolt heads. Those are considered to be the worst flowing heads that came on our cars. So you should be just fine with your stockers. If you do plan on upgrading the heads then I'd go with PRC 5.3 heads. They flow close to their ported LS6 heads but will give a nice increase in compression due to the smaller combustion chamber. You can get those through texas-speed.com
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Old 02-09-2010, 08:20 AM   #13
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If I was on a tight budget I'd probably get a Cam, UD Pulley & Lid. Contact Shawn @ VA Speed and he can tell you what you should go with Cam wise.
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Old 02-09-2010, 09:15 AM   #14
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If you wanna go big, the polluter cam from tick has been dynoing in the range of 410-425rwhp(or so) with basic supporting mods(intake, longtubes, etc.)
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Old 02-09-2010, 09:21 AM   #15
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Quote:
Originally Posted by Aetos View Post
If you wanna go big, the polluter cam from tick has been dynoing in the range of 410-425rwhp(or so) with basic supporting mods(intake, longtubes, etc.)
Not to Bad
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Old 02-09-2010, 10:34 AM   #16
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Quote:
Originally Posted by Aetos View Post
If you wanna go big, the polluter cam from tick has been dynoing in the range of 410-425rwhp(or so) with basic supporting mods(intake, longtubes, etc.)
Polluter....I love that!
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Old 02-09-2010, 11:57 AM   #17
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Is $425 for a set of 243 heads with 33kmiles includes comp 921 dual valve springs heat tanked clean a good deal should I hop on these?

Then throw on those POLUTR 24x cam.

What should I expect now xxx rwhp???

Polished TB
243 heads
24x cam
Custom Long tube headers with cut out's
LS6 intake Mani
On a Decent tune.
Through T56
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Old 02-09-2010, 12:08 PM   #18
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You have to be careful what heads you get if you decide to run a big cam such as the polluter, the needed clearance may not be there. I know with a GOOD pair of heads and a polluter, you can possibly see numbers 450+

Quote:
Originally Posted by Silvia346ci View Post
Is $425 for a set of 243 heads with 33kmiles includes comp 921 dual valve springs heat tanked clean a good deal should I hop on these?

Then throw on those POLUTR 24x cam.

What should I expect now xxx rwhp???

Polished TB
243 heads
24x cam
Custom Long tube headers with cut out's
LS6 intake Mani
On a Decent tune.
Through T56
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Old 02-09-2010, 12:47 PM   #19
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browse around the dyno section, theres tons of good info there on what has worked and what hasnt. you got a s14...its a light car and is going to flat out move with a stock LS1.

first off, do you have the motor in the car? running properly?

and id say if your on a budget a cam kit is probably your best bet. you could probably do one for around 1000 bucks, look for deals for sure! and add as you go, get the bolt ons as you go.
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Old 02-09-2010, 12:58 PM   #20
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Quote:
Originally Posted by Silvia346ci View Post
Is $425 for a set of 243 heads with 33kmiles includes comp 921 dual valve springs heat tanked clean a good deal should I hop on these?

Then throw on those POLUTR 24x cam.

What should I expect now xxx rwhp???

Polished TB
243 heads
24x cam
Custom Long tube headers with cut out's
LS6 intake Mani
On a Decent tune.
Through T56
Yes that is a good deal but have a couple springs pulled and make sure they are within spec. If there are 33k on the springs they are probably worn out.

Decide on heads first then match the cam to the heads. Not only what heads but how much if any they have been milled.
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Old 02-09-2010, 12:58 PM
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