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Discussion Starter #1 (Edited)
Robsrt is back on the dyno today with our 419 stroker. First they dialed in the NA tune.
NA: 559rwhp/504rwtq
N2O Pull 1: 813rwhp/915rwtq (Only 5 degrees of timing)
N2O Pull 2:
N20 Pull 3:
N2O Pull 4:
N20 Pull 5:

I will update this as I get results
 

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niiiiiiiiiiiiice
 

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Discussion Starter #3
Correction, it was actually 559rwhp/504rwtq on the all motor pull. This is now a new NA record previously held by one of our other customers at 558rwhp. For comparison sake, this same owner (Robsrt), was on this dyno with his heads/cam 6.1 and made 425rwhp so this is definitely not a "loose" dyno.
 

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Amazing results. What is the goal?
 

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Discussion Starter #8
just found out this was a Mustang dyno. A competitors 426 made 488rwhp on this dyno and runs low 11's at the track.
 

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Andy, is rob running cometic gaskets? ARP head bolts or A1 technology upgrade? Curious to see what will hold a 400 shot. Also what is the cylinder pressure from a 400 shot VS Hemi~C 19psi and a 200 shot? Thanks Andy:thumbsup:
 

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Discussion Starter #10
Stock gaskets with Arp studs. Im going to assume boost is harder on gaskets and bolts than nitrous but that is only a guess.
 

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sick power from a 400 shot
 

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gotta love that guy
 

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That spray pull is just sick.
 
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