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Re: [article] T.P.I.S. builds a 396 LT1

Subject: Re: [article] T.P.I.S. builds a 396 LT1
by jsup on 2008/11/22 1:29:03

Quote:

mseven wrote:
the ss rockers are around 400.-500. now, they were more when they first came out. Difference in comparison to yours is not only weight but the increase to a 1.7 ratio.


OK, stupid question....honest question however....

You're saying the weight of the stainless is less than the Chrome Molly I have? By how much and what is that worth 5HP? I can't find a spec that they are lighter than the chro mo I have, Comp doesn't say that, summit doesn't say that. Not so sure they are. In fact, the chro mo are more expensive and I believe lighter than stainless. So +5 if that's the case?

As far as the 1.7, why would that make a difference? The overall lift is still .558. I'm running .602 with smaller rockers. I am not sure how you think the 1.7s make much difference on that cam.

Then, we have to look at the cam profile, no? The 1.7 will ramp the cam sooner given it's the same profile and ramp on each cam. Right?

Without knowing the profile and ramp for each, it would be impossible to conclude, no?

What we do know is that I have overall more lift and more overall duration, despite the 1.7s on this motor. Therefore we can conclude that my cam ramps faster, we just don't know by how much.

Quote:

But, your motor should have more 550chp (I have reservations being over 600 though), but since you aren't a fan of dyno's, I guess you/we will never know.


I would completely expect that I would have more power, because on paper there's no other conclusion. The only difference is, I don't have "forum approved" parts...which is exactly where the term "About 600 Club" came from.

People would post something like this motor and insist it would make more power than another, more robust, setup, like mine in this example. I don't get it or see how you come to the conclusion. I'm not even saying you're wrong, on paper it doesn't add up.

Let me repeat, I have more displacment, more cam, more intake, more head, similar compression, yet your predicting similar numbers. To me, doesn't fly, please explain, why is that?
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