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What should this combo run roughly

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Old 07-06-2014, 01:18 PM
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Default What should this combo run roughly
Just want to see what you all think

Cubic inch. 408
Compression 11.4
Heads out of the box trick flow 235
Intake. Fast 102 set up
Headers tx speed 1-7/8
Cam. 248/254 stuck in on a 108
Trans TH400 with a 4700 converter
Rear end. Moser 12 bolt 3:73
Tire 275-60-15 MT drag radial

It made 461 RWHP and 605 RWTQ N/A

Body mount tq arm lca's and panhard with subframe's
2000 z/28 hard top
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Old 07-06-2014, 01:34 PM
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Is 605 rwtq possibly a slight misprint lol?
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Old 07-06-2014, 01:36 PM
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No misprint. Tight lobe sep makes a lot of TQ. Even with the base tune it made 443 RWHP and 540 RWTQ . This is on a mustang dyno
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Old 07-06-2014, 04:12 PM
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Those are some very odd dyno numbers
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Old 07-06-2014, 04:28 PM
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Old 07-06-2014, 04:30 PM
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Old 07-07-2014, 09:52 AM
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I see that, but that still seems way high. Don't you think?
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Old 07-07-2014, 11:16 AM
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The car feels like a monster!! The dyno has been spot on for all the other cars on it. Yes it seems a little high for a N/A 408.
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Old 07-07-2014, 11:47 AM
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That high torque is converter spike IMHO
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Old 07-07-2014, 12:08 PM
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^^^ I thought about that. If you look at the dyno sheet. Take away the spike in the graph and that puts it at 540RWTQ
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Old 07-07-2014, 12:52 PM
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Originally Posted by SLV_WS6
^^^ I thought about that. If you look at the dyno sheet. Take away the spike in the graph and that puts it at 540RWTQ
Poor tires...
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Old 07-17-2014, 12:29 AM
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Better run mid 10's at least lol
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