Quickin

If I bought a new crate LS6, how much $$$ would it take to get 450 RWHP/450 RWTQ out of it?

sited12

I think that is out of range by about 20 horsepower for just heads cam and bolt ons so you would need to add more cubic inches. Best bet would be to buy an all bore 382 if you are gonna buy a block or a 6.0 iron block if you dont care about weight.

red53gmc

LS6 - 405FWHP M6 - 12% loss = 356 RWHP
Cam - 30 RWHP
LT headers - 20 RWHP
Pulley- 5 RWHP
Intake- 10 RWHP
Tuning- 15-20 RWHP?

So, you can make about 436 RWHP without doing heads.

lafnatu

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by red53gmc:
<strong>LS6 - 405FWHP M6 - 12% loss = 356 RWHP
Cam - 30 RWHP
LT headers - 20 RWHP
Pulley- 5 RWHP
Intake- 10 RWHP
Tuning- 15-20 RWHP?

So, you can make about 436 RWHP without doing heads.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">you must be smoking some good crack.436rwhp without a bottle, you got to be kidding

Quickin

[QUOTE]Originally posted by red53gmc:
[QB]LS6 - 405FWHP M6 - 12% loss = 356 RWHP
Cam - 30 RWHP
LT headers - 20 RWHP
Pulley- 5 RWHP
Intake- 10 RWHP
Tuning- 15-20 RWHP?

Is all this accurate? If not, where's the problem?

What about RWTQ?

Slowhawk

iTrader: (12)

I agree with the 436hp.Torque should be around 390-400lbs.
You could go with a huge Cam and maybe hit 450hp,but drivabilty will really suck <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Quickin

Oh, thats right, horrible, horrible idle unless you increase the stroke, right?

Thats why I don't like H/C cars, they shake your teeth out.

red53gmc

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by lafnatu:
<strong>you must be smoking some good crack.436rwhp without a bottle, you got to be kidding</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">No crack, just starting off with the 405hp ls6 not the 325hp ls1. You do the math.

383ss

iTrader: (14)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by red53gmc:
<strong> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by lafnatu:
<strong>you must be smoking some good crack.436rwhp without a bottle, you got to be kidding</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">No crack, just starting off with the 405hp ls6 not the 325hp ls1. You do the math.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I agree that's huge numbers without heads. Probably not gonna happen.
And 325 is it's factory rating. Vette's don't dyno RWHP much more if any more than a f-body. A Z06 is gonna be more. A typical new f-body will be around 320, z06 around 350 rwhp/340 rwtq.

About the highest non head car's I've seen is around 400rwhp. The LS6 heads are your only advantage to give more hp so I'll guess 15 on the high end for that, so around 415rwhp.

Also pulleys most likely WON'T give you 5rwhp on a built car and what intake are you putting on to give it 10 RWHP??? Tuning should be about 15 MAX

You do the math.

WNA B LS1

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Quickin:
<strong>Oh, thats right, horrible, horrible idle unless you increase the stroke, right?

Thats why I don't like H/C cars, they shake your teeth out.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Horrible idle with bigger cam. Stroke wouldn't have anything to do with it. Lager durations, and smaller LSA's will result in horrible idle. Setting the idle higher will help, but driveability will suck greatly.

Quickin

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by WNA B LS1:
<strong> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Quickin:
<strong>Oh, thats right, horrible, horrible idle unless you increase the stroke, right?

Thats why I don't like H/C cars, they shake your teeth out.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Horrible idle with bigger cam. Stroke wouldn't have anything to do with it. Lager durations, and smaller LSA's will result in horrible idle. Setting the idle higher will help, but driveability will suck greatly.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Now I'm <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> .

I thought getting a stroker motor will give me allot more horsepower/torque with a much better idle. I sure hope I didn't just spend $16,000 on a motor(ARE 436) to get a better idle when I could have gotten the HP and TQ I want from a H/C kit for $5,000.

What gives?

99RamAirTA

Just give me your 436 and call it a day

Quickin

No, I'm being serious. I literally spent one year learning about motors and cams and porting and everything. At first I was going to get the MMS421SD, then I was seeing H/C cars putting down low 400's HP & TQ. Then I decided to go H/C because it was 1/3 the price as a stroker. THEN I learned my idle would suck if I did go H/C. THEN I learned that a stroker would idle close to stock and easily put down 450/450. (Taking a breath).
Whats up man.
Now my 436 is done and shipping on Tuesday, don't get me wrong I'm a happy bastard after waiting almost 7 months. And I fully trust Mike Norris and Nick A. that it will idle very nice, I guess I'm just not understanding why?

So, what exactly allows my 436 with lets just say hypothetically 460/460, idle better than a H/C car with 440 HP?
Technical answers welcome. <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />

WNA B LS1

I am learning myself, I have spent the majority of my life studying motors. (I am 18) With a 460/460 Cam is a very docile cam, probabaly allowing the motor to idle around 800-950 (not too sure exactly where it will idle) With a Monster Stroker like your 436, that will get you the most torque and the most horsepower. Guys with h/c cars usually have a cam with over .500" lift. The bigger the lift, the more the idle quality goes down. You spent your money wisely, from what I have read you should put over 500rwhp. There are a few guys here that have some monster 422 and 434 that put that much out. I wouldn't worry about idle quality with your cam. Just my .02 Maybe some else will chime in and inform us both if I am wrong.

00blkws6

There was a local guy who dyno'd his z06 bone stock and pulled 360ish RWHP, so you could theoretically push the number you are looking for. Just call one of the sponsors and tell them you goals and they will set you up with what you need.

Quickin

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by 00blkws6:
<strong>There was a local guy who dyno'd his z06 bone stock and pulled 360ish RWHP, so you could theoretically push the number you are looking for. Just call one of the sponsors and tell them you goals and they will set you up with what you need.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">My ARE 436 is shipping this week, I was just wondering about all this.

WNA B LS1,
Nick and I chose a very mild cam (I think the mildest) because I want my idle to be as close to stock as possible. I know I'll be giving up some power, as long as that TQ is in the mid to high 400's I'll be happy. I can always go change the cam for more. So yes, I did spend my money just for that nicer idle quality.

1moreblackta

ok, real quick question here guys........

you have an ls6. You replace the cam with a bigger cam. Do a great set of ported ls6 heads, ls6 manifold, and a great set of headers.

Now, you get an ls1. Again, put in the same cam as above, same heads, same ls6 manifold, and same headers.......

now, please explain to be how the modded 'ls6' will give me more hp that the moddes 'ls1' please........

im dying to know... <img border="0" title="" alt="[Razz]" src="gr_tounge.gif" /> <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

Quickin

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by 1moreblackta:
<strong>ok, real quick question here guys........

you have an ls6. You replace the cam with a bigger cam. Do a great set of ported ls6 heads, ls6 manifold, and a great set of headers.

Now, you get an ls1. Again, put in the same cam as above, same heads, same ls6 manifold, and same headers.......

now, please explain to be how the modded 'ls6' will give me more hp that the moddes 'ls1' please........

im dying to know... <img border="0" title="" alt="[Razz]" src="gr_tounge.gif" /> <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">My guess is: they will be the same.

You have changed every item that GM has changed to make the LS6, except the headers, which will help them equally having done the other items you mentioned.

1moreblackta

exactly my point. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

red53gmc

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by 383ss:

Also pulleys most likely WON'T give you 5rwhp on a built car and what intake are you putting on to give it 10 RWHP??? Tuning should be about 15 MAX

You do the math.[/QB]</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Why won't pullies give the same HP on a built motor? Did they all of a sudden just start eating HP??? I know of several people that have gotten 9-10 RWHP(which is what? 11-12 FWHP?) with intakes.

<small>[ September 09, 2002, 06:27 AM: Message edited by: red53gmc ]</small>