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Least expensive way to gain 35 more rwhp?

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Old Sep 7, 2007 | 12:32 PM
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Default Least expensive way to gain 35 more rwhp?

See my sig for mods, I'm happy with the cam but I want 400 RWHP and some more Torque under the curve.

Which way should I go ... a new cam, new heads or p&P my 243 heads( any referrals)?

Least expensive way.

I have PRC Duals, Titatium Retainers and chrome moly push rods.
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Old Sep 7, 2007 | 12:36 PM
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spray
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Old Sep 7, 2007 | 12:39 PM
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you could maybe pick u a set of already ported and polished heads, then sell the 243's you'll get some of that back... probably be the cheapest way unless your going to change the cam yourself...
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Old Sep 7, 2007 | 12:53 PM
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Stock valved 243 heads should gain you 30-35 or more for around a grand.
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Old Sep 7, 2007 | 01:51 PM
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If you just want 30-35 more horses say no to spray. Even though it's the best bang-for-buck you'll be paying for nitrous, nitrous bottles, nitrous accessories and upgraded fuel systems for 100-150 horses.

Since you have the valvetrain to support a bigger cam, I suggest putting in a G5X3. Usually re-tunes are cheaper than the first initial tunes so that's another plus.
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Old Sep 7, 2007 | 01:57 PM
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Originally Posted by GuitsBoy
Stock valved 243 heads should gain you 30-35 or more for around a grand.
I have the stock valve 243's, new LS6 heads!

The last mod session I:
1 changed the stock LS1 cam for the Cheatr
2 replaced the intake with one from the LS6
3 replaced my 853's with 243's (I installed PRC duals, titanium retainers and chrome moily push rods)
4. 4.10 rear

All I gained was 35rwhp and 11 rwtq.


I did the cam and heads myself not sure which is more work the cam or the heads. They both seemed the same, that harmonic balancer bolt removal was a B*tch though.

I guess I can get a good tuner to just change the cam and retune/dyno for around $1200? I'm not looking to change the cam myself again, my wife would really think i"m insane since I just did it a few months ago!
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Old Sep 7, 2007 | 02:12 PM
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you can go with a bigger cam, your setup well for one, but that will also change the driveability, not sure if thats an issue. upgrading the heads could net some more power without sacrificing as much drivability i would think. i have not changed either in my car, hence why i end it with "i would think"

j/w ... what does "B&M Racing Air Induction" stand for?
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Old Sep 7, 2007 | 02:17 PM
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Bigger cam's drivability is all in the tune. Heads would need to flow like motherf*ckers to gain 35 horses and that means mucho dinero. Switching cams is the way to go!

If I were your wife, I would think you would be crazier if you chose to pay to have a cam installed if you could do it yourself.
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Old Sep 7, 2007 | 02:18 PM
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Originally Posted by cam1999
I have the stock valve 243's, new LS6 heads!

All I gained was 35rwhp and 11 rwtq.
I assume youre LS6 heads are unported. Youll likely only see 10 HP with those.

I meant ported LS6 heads, yet retaining stock valves. Those should see 30+ HP gains pretty easily.
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Old Sep 7, 2007 | 02:22 PM
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I shoudl have paid closer attention to your mods. Youll need to step up to a larger cam. At least a mid 23x size with a tighter lsa. And youll absolutely need to port those LS6 heads. But still, 35 should be easily doable.
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Old Sep 7, 2007 | 02:28 PM
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35 RWHP and 11rwtq gain seems low IMO for the mods you had done, but the 4.10 will have a negative affect on the dyno

maybe 10 rwhp

The cam alone with a tune should have got you 30+ rwhp.

maybe the tune is off ?
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Old Sep 7, 2007 | 02:32 PM
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Originally Posted by 98_Formula
you can go with a bigger cam, your setup well for one, but that will also change the driveability, not sure if thats an issue. upgrading the heads could net some more power without sacrificing as much drivability i would think. i have not changed either in my car, hence why i end it with "i would think"

j/w ... what does "B&M Racing Air Induction" stand for?
Its' two K&N reuseable free flow filters on like a "Y" to replace the stock inlet filter.
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Old Sep 7, 2007 | 02:34 PM
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Originally Posted by cam1999
I have the stock valve 243's, new LS6 heads!

The last mod session I:
1 changed the stock LS1 cam for the Cheatr
2 replaced the intake with one from the LS6
3 replaced my 853's with 243's (I installed PRC duals, titanium retainers and chrome moily push rods)
4. 4.10 rear

All I gained was 35rwhp and 11 rwtq.


I did the cam and heads myself not sure which is more work the cam or the heads. They both seemed the same, that harmonic balancer bolt removal was a B*tch though.

I guess I can get a good tuner to just change the cam and retune/dyno for around $1200? I'm not looking to change the cam myself again, my wife would really think i"m insane since I just did it a few months ago!
Question, are your headers longtube or shorties? If longtubes, the cheater cam was made for stock manifolds, so you may actually find more power by selling the long tubes and going back to shorties or stock manifolds w/cats.

The other thing may be that you just don't have a good tune.

If you donb't want to try either of those then I'd definately go the cam route, but seriously people with your mods and just a TR224 are making the kind of power your looking for, which is why I think your headers may actually be hurting that CheaTR cam. As Patrick G, he'll know if long tubes will rob power from the CheaTR or not, I'm just guessing here.
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Old Sep 7, 2007 | 02:50 PM
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I have Shorty's.
The tune was done by a reputable shop.
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Old Sep 7, 2007 | 03:00 PM
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The CheaTR will work well with stock manifolds, but headers are not going to cause less over stock manifolds.

look at stock cam car with headers..there is always a gain there.

There is something else going on as a cam only setup in most cases makes more power.
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Old Sep 7, 2007 | 03:01 PM
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Originally Posted by cam1999
I have Shorty's.
The tune was done by a reputable shop.
shorty's and what y-pipe and cats ?
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Old Sep 7, 2007 | 03:52 PM
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Honestly get the 224/224 cam, port the heads a tad and call it a day
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Old Sep 7, 2007 | 04:13 PM
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Originally Posted by LS1 SPEED
The CheaTR will work well with stock manifolds, but headers are not going to cause less over stock manifolds.

look at stock cam car with headers..there is always a gain there.

There is something else going on as a cam only setup in most cases makes more power.
Yeah, that was just a thought.
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Old Sep 7, 2007 | 04:26 PM
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put longtubes and bigger cam! bam! need no more! doesnt even have to be a big cam! low to mid 230's!
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