Re: 496 to be DYNO'D!
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Re: 496 to be DYNO'D!
my bad on the cam specs...
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Re: 496 to be DYNO'D!
I am always interested in modeling motors in performance trends. Mind sharing actual head flow data at. 300 .500 .600? Also. Is the motor set up with factory tolerances or a little looser? Factory widange or does it have a tray and good pan?
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Re: 496 to be DYNO'D!
Ooo Emm Gee... That vid was sick! Looking forward to hearing your numbers dude!
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Re: 496 to be DYNO'D!
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Re: 496 to be DYNO'D!
Hmm, with flow numbers I change to 713 hp @ 6400.
All these 500hp guess wont get the virtual high five. It WILL be 665+ I guarantee that |
Re: 496 to be DYNO'D!
If Mark says 700 @ 6300, that is with in a few numbers. He has built more then enough and flowed way too many heads to know what itll make.
I want him to do my next build. |
Re: 496 to be DYNO'D!
662 hp
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Re: 496 to be DYNO'D!
Numbers PT gave are below running 91 octane and 165* coolant temps.
Adjusting windage and setting the bottom end to a lower drag set up netted a pinch over 30ftlbs and 30hp through out the full curve bringing 641ftlbs @ 4,600 and 629hp @ 5,600. Adjusting headflow after adjusting the windage/friction netted 642ftlbs @ 4,500 and 630hp at 5,700. Keep in mind, I don't have updated flow numbers for the exhaust which could move things higher if I had them. Also, wish I had .600 numbers to use over .550. I have found the program to be most accurate using .300 .500 and .600. I know the intake side of the cam never sees that lift, but it just works better. Could be showing less power with that as well. Also, Mark did not provide all the details on the cam. IE intake centerline and LSA. I am going off previously posted LSA and a 112 ICL. Unfortunately the program is only as good as the info provided. It has proven itself time and time again when ALL the accurate data is given. But there is a lot of guess work here. I hope it is conservative and you get to that 640+ftlbs @ 4,900 and 700hp @ 6,300 Mark is mentioning. I know this isnt the first motor Mark has built. |
Re: 496 to be DYNO'D!
One additional comment, If you take the power curve PT gave, move it up 300rpm which is closer to where Mark says it will make peak TQ
642ftlbs@4,900=599hp 580ftlbs@6,000=662hp 536ftlbs@6,400=653hp |
Re: 496 to be DYNO'D!
I'll go with Mark over the air dyno any day. That is all.
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Re: 496 to be DYNO'D!
My guess is 711hp, 684tq
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Re: 496 to be DYNO'D!
Not going there at all.
SBC forever! Sounds like you'll have a beast no matter what the numbers will be. Have fun. |
Re: 496 to be DYNO'D!
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sign me up for a steel headed 9-1 comp, small cam, 496 that makes 700 H.P.
Sounds like I wasted a ton of money bulding my 496 !! 13.5 to 1 comp, brodix cnc'd bb2 extras, big solid roller, super victor,1150 dominator that made a little over 800 h.p. |
Re: 496 to be DYNO'D!
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Again, I don't have the full scoop on the motor. Garbage in = Garbage out. The program has proven itself with in 2% on quite a few wild motors. Not saying this build won't make what you are saying, just using the info that I have. |
Re: 496 to be DYNO'D!
Wow Mark, do you have payment plans?
Can't wait to see the numbers, I keep going back and forth between a 454 and 496 for my 'velle! Posted via Mobile Device |
Re: 496 to be DYNO'D!
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What did you have this engine in ? What were the specs on the car/truck , weight, gear ratio, and what are the numbers at the track ? Dyno sheets don't mean much to me, it's real easy to inflate the numbers. Posted via Mobile Device |
Re: 496 to be DYNO'D!
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Re: 496 to be DYNO'D!
9.40 and foot braking is quite the wow factor.:metal:
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Re: 496 to be DYNO'D!
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Holley 850 DP 4150 10.7 CR RPM Air Gap Performer RPM oval heads 2 inch primaries headers Roller rockrs/cam with a 304HR comp cams looser bearings Your AFR heads flow a bit better, would it make that much of a difference? eventhough I have more lift I still don't flow quite as good. |
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