Tuskyz28

it happens but not often

G Atsma

Yep. Gotta be a balanced combo!

LS6427

iTrader: (2)

500 RWHP through a 4L60E.....back in 2002. 436ci below.

.

NAVYBLUE210

spanks13

iTrader: (5)

I think we're only a couple posts (from the right people) away from another argument about how high a street engine can rev, and why cathedral heads are better

Tuskyz28

correctly for a nice running setup. Go any smaller than the cam you'll lose power... Go any bigger and you'll losing torque. There is a suck thing as too much cam. I've seen Pat G make MORE power going to a smaller cam. And spanks I like both rectangle and cathedrals. I'm currently running LS3 heads on a LS2. These big cams are overated. If you got a big intaje runner such as LS3... You don't need much duration to make power.

Tuskyz28

Black bird 416ci build is a perfect example of what I mentioned in my last post....

G Atsma

Tusky describes a nicely balanced, well-rounded setup that has the flexibility a larger-cammed engine lacks. Sure the larger-cammed engine makes more power at peak, but it is a "peakier" engine that's fussier at lower RPM's. He knows of which he speaks.

01CamaroSSTx

iTrader: (3)

Until the tuner can take this combination up to max hp I won't know what power I'm making but my guess is somewhere around 550 rwhp. From what dyno sheets I've seen max torque is reached before max hp and those #s are often not the same with hp being higher.

Tuskyz28

That's right. Basically a 224 cam in a ls1.... You can have some milk and cookies to go along. A 23X cam go hurt some down low vs 21X which go hurt up top. That's why today we still see guys using a basic 224 cam cause it gets the job done on both ends.

HioSSilver

iTrader: (8)

What you run into with these big cammed cars is most don't match the intake to the rpm range it should be running in. If you're not gonna extend the rpm range leave the damn cam alone in these engines. You're just about wasting your time changing it with out a corresponding intake change to extend rpm range.

what you did was shove a cam in it....with a tight lsa so it works with that long *** intake runner on your stock intake . Then you have massive reversion in those long runners killing your tq for a few hp up top.

mean while I'm over here with a 451whp 423wtq stock head stock cam bolt on ls6 wondering wtf you guys are doin.

the big cam can work. But you gotta be willing to spin the motor past this stupid self imposed 6500rpm rev limit most of you have put on your selves. To that tho you're gonna have to give up the **** valve springs most seem intent on running. I ain't never seen nearly a entire group of enthusiasts so intent on turning a very powerful modern sbc into one from the 60's.

but that's ok. It sounds really cool.

G Atsma

Basic TRUTH from Hiosilver! You nailed it! It's about BALANCE! Power all over and UNDER the curve!

SoFla01SSLookinstok

First I'll apologize to G Atsma. As I don't think he likes me & he really likes hiho lol. I can agree with some of the stuff in his big rant poast. Some people really don't care about performance & just want that sound at idle. Then they put the cam in & complain about how it drives & whatnot. They don't understand & are not auto mechanics, hot rodders, or technicians. A well thought out combo is always the best route to a persons expectations & wants of the vehicle. Just 500rwhp M6 combo? That can be done so many different ways, the person will have to decide which way. Or just do something someone else says or go to a speed shop etc.

Heck even if they got their new combo & it didn't make 500rwhp. Just go to another dyno or play with the correction factors, like hiho, to get your big number wanted.

To Hio: with your stock head, stock cam, not stock valve timing, not stock valve lift/duration, ls6. Who bent valves, cause you messed up, & the motor over revved. Nobody's perfect.. not even you.

HioSSilver

iTrader: (8)

Talk about a rant. Got any more excuses why your **** is such a turd? I mean did anyone mention you?

How bout this. I hate someone wanting a certain hp number because for me it's about acceleration.....not hp. If anyone in this thread wants a 500whp m6 car use soslo for what NOT to do. He likely has the slowest 500whp known to man. You probably be ok then and as side effect he will dream of you nonstop and follow you around tech with absurd dumbass comments.

G Atsma

No apology required. No dislike, in fact I don't give a rip one way or another about either person. I DO give credibility to those who come here and make sense without flaming anyone WHO DOESN'T HAVE IT COMING. You are not one of those people.

99 Black Bird T/A

iTrader: (4)

I started to mention the "classic LS1 heads & cam 224/224 cam package. My 15 year old set up was 418 whp and 404 wtq. The graph was a very nice with a fat torque curve. The set up was very fun to drive. Put 125,000+ miles on that set up. The new 416's power curve looks almost exactly the same as the old H&C LS1 - just add 100 hp everywhere and 70 tq

Making hp & tq is great but making hp & tq and keeping excellent drive ability is king to me.

omaha stylee

G Atsma

There ya go!

SoFla01SSLookinstok

Lol. Why are you bringing my car up? No excuses here my car is slow at the track. Who in the heck mentioned your dumb ***?? You act like you have more of a reason to be in this thread than me. Yet my car is very close to 500rwhp & yours is not. Suck on that for awhile dork.

Ok. No problem man. That's you.....not everybody. More of hiho trying to tell people what to do with their car. Man, I must get under your skin. You think I follow you around tech? Lol.

I appreciate the reply. As I'm not looking for credibility & hiho is of coarse. Right on. Oh and he flames thousands of people that don't have it coming just so you know. Because they don't run tens at over 130mph with a stawk "bolt on/in" ls6.


For the thread/OP. As hopefully you have gotten some info, of other combos, from this thread. How about maybe posting some ideas about what route you think you may take? Engine size is a pretty big part of this. Along with what you will be doing with the car(racing/street car/both) & what will make you happy?

I might as well share my engine combo as it's pretty close to 500rwhp. I went the 383 route. Has about 11.5:1 compression, PRC 215 heads, ported Fast 92/92 intake, 2" headers, dual x-pipe(dumped) exhaust, vacuum pump, & a custom ground(235/239 116+2) camshaft. The only part I didn't choose for my combo was the cam. Called SRD & explained to Martin exactly what I wanted from the cam. From being easy on valve springs, to making enough intake vacuum, to operate the brake booster so I wouldn't get a rock hard brake pedal, etc. He hit the nail on the head & I'm very happy with his cam & my combination. I've seen 499rwhp but that dyno read a bit high. On a dynojet, SAE numbers, it made 483/445.

Tuskyz28

With those kind of numbers you have to be running 11.2s or better unless you racing uphill.....