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The longer rod isnt really gonna do sh*t compared to the money you save that could be spent elsewhere. Ive run all kinds of combos through dyno-sim, and it only makes a couple HP difference. I mean, dusty is making what, 1200hp? or more? i dunno. But there are way too many people over the 1000hp mark, alot even with 5.565" (400) rods.
Another thing with the compression raito. Youre gonna be running race gas anyway, and a 76mm turbo is going to run out of compressor pretty fast on that caliber of motor, so you might as well make as much power N/A as you can. I vote for 9.5-9.75:1, Little M block, and a 5.7 rod. That will make you plenty of power and save alot of money for the valvetrain.
Gary
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87 Buick T-type WE-4,
6.0L LQ4 iron block LSx,
65# injectors, dual walbro 255s
HP Tuners 2-bar Speed Density EMS
224/224-112 cam,
4L80E, Fuddle 3200stall,
BW s475 turbo, 60mm wastegate,
9" rear 31 spline with spool, 3.07:1 gears,
11" rear disks,
TRZ Manual Rack and Pinion
full 4" exhaust with dynomax race bullets
650hp 585ft-lbs(crank)on 89 octane and no intercooler, 9.5psi-12 degrees timing
11.42@119-7psi
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