Author Topic: 462 Street build  (Read 1492 times)

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frnkeore

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Re: 462 Street build
« Reply #15 on: July 26, 2024, 01:22:54 AM »
Hey Ross, the reason that the curves don't cross at 5252 is because each axis is on a different scale.


 ;D

I'm glad you finally figured it out.
Frank

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Re: 462 Street build
« Reply #16 on: July 27, 2024, 09:10:50 PM »

11:1, that cam, the valves in control, and running closer to 12.5:1, I think you will see significant gains in power and the peak RPM will shift higher, as Brent pointed out, not TFS numbers, but I bet that engine will pull to 6000 and make 480-490-ish.  Yes, 260 cfm heads fight back, but I think there is more in there. 

Also, with all respect to your friend...if you really are at 125 closed, I recommend you jump back in, I do not think he is right.  A Morel is pretty tough, but I have seen other brands break link bars with higher seat pressures than you see.  I thought I saved pictures of a 428 PI with 130/320, can't find them but I will look

ON EDIT:  It wasn't a PI that had the failed lifter bars it was an all iron CJ, and here is what I found under the intake.  Seat pressure was around 130, but all over the map, and open was low but not horrible.  I don't love Comp lifters, the bar is weaker, but if the valves were in control this wouldn't have happened

BTW, just as a repeat after playing with some numbers, that cam is stout at 82 degrees of overlap, generally considered a whole lot...

I'd do the springs, 175/420-ish notch the divider and a little blending on the roof of the plenum and lower plane short turn if it's sharp, put the cam at 108 ICL, might like a cooler plug depending where you are, lean it up, give it some timing and let her eat.   Would be nice to see another round of dyno as I spend your time and money :)

 That's a bit of pain in those pics.
 Cam my buddy wanted about 20* more duration, believe it or not. When I called Bullet and talked with them turned down first cam forget the numbers at this point . Got these numbers and the 104 ICL and felt that would do pretty well. Build the cylinder pressure. Sounded pretty good on the dyno not wild in my book, but nice. Think the overlap is in a "fun" area.
Can I pass it off as a thumper to the bowtie boys?
 Had thought about notching divider but had to rein myself in. Street car not race. Actually more show car that's driven . I know boring !
 Plugs are Autolite 3923 and may switch to a colder plug yet. I'm east coast around Philthadelphia, Pa moved here around 2015. So close to sea level.
 Timing was set at 14 initial with a total of 36. Don't know I can put much more to it on 93 octane.
Jet will happen once in car and corked up. See how it reacts with the 2-1/2" pipes and flowmasters.
 I can spend all kinds of fantasy money !!