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Dynamometer Results & Comparisons Dyno Records | Dyno Discussion | Dyno Wars

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Old 10-28-2009, 03:22 PM   #1
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Default Most power NA with a 5.3 head any cubic inch
As the title says, whats the most rwhp or best et youve seen with a ported 5.3 head? All motor. Any cubic inch.

TXCAMSS went low 10's high 9's all motor 408 with a ported 5.3 head I am pretty sure.
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Old 10-29-2009, 04:51 PM   #2
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I made 486/458 on a 383 w/ 5.3L heads. This was through a stock 78mm throttle body and LS6 intake. Certainly room for improvement with a 90mm intake setup. Also didn't have my exhaust setup optimized. Will probably dyno again in the next month or so.
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Old 10-29-2009, 05:17 PM   #3
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460/410 six years ago with a TEA 1.5 head hand finished, 230/232 cam, stock intake, stock bottom end, all other bolt ons. The engine would have probably been worth 480rwhp with today's LSX technology (FAST intakes, new tuning methods, etc).
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Old 10-29-2009, 07:38 PM   #4
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502 rwhp

f body,408,ported 5.3 heads,ls6 intake and tb,pacesetter headers,12 bolt rear


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Old 10-29-2009, 08:07 PM   #5
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Shawn is that a stick car?
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Old 10-29-2009, 10:04 PM   #6
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Made 505rwhp with the setup below.
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348ci forged shortblock, Thunder Racing ported 5.3l heads, Cam Motion 246/250 110lsa hyd. roller cam, Moser 12-bolt (4.56/spool)

10.32@131.70, 1.43 60' - 3238 raceweight, +675' DA
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Old 10-29-2009, 10:19 PM   #7
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But you have the lord of LT1's
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Old 10-29-2009, 10:28 PM   #8
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Quote:
Originally Posted by Jason99T/A View Post
Made 505rwhp with the setup below.
Holy shit man I think I just saw a ghost.
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Old 10-29-2009, 10:32 PM   #9
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Holy shit man I think I just saw a ghost.
HA! Still around man, just don't have much time to read or post anymore. Red car is still sitting in the garage. Need to get it running again!!!!
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348ci forged shortblock, Thunder Racing ported 5.3l heads, Cam Motion 246/250 110lsa hyd. roller cam, Moser 12-bolt (4.56/spool)

10.32@131.70, 1.43 60' - 3238 raceweight, +675' DA
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Old 10-30-2009, 09:52 AM   #10
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495rwhp here
fbody, 370ci, PRC 5.3's, fast 92/92, pacesetters/duals. Through 3" steel DS, 9"/4.33 and 325/50/15 mickey dr's.
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Old 10-30-2009, 10:57 AM   #11
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Quote:
Originally Posted by FASTFATBOY View Post
As the title says, whats the most rwhp or best et youve seen with a ported 5.3 head? All motor. Any cubic inch.

TXCAMSS went low 10's high 9's all motor 408 with a ported 5.3 head I am pretty sure.
He made ~520 rwhp through a stalled auto IIRC
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Old 10-30-2009, 12:23 PM   #12
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500rwhp is pretty doable for sure!!
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Old 11-15-2009, 09:37 AM   #13
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I have a 6.0 liter and plan on leaving it at 370 inches, I got 4 sets of LS heads. WHich one ported for the most power? Here are the casting#'s

706
862
853
317

I am gonna change the car I think, gonna do some road racing. Put a six speed back in it with a LS in front of it.

Just want something different.
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Old 11-18-2009, 05:42 PM   #14
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My car made 512/502 with my ported 5.3 TEA stg 1.5 heads on my 408 iron block..really curious to see what a set of trickflow 235's would do on my setup
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512/502-best motor pull..621/672-on the dope (old setup, new numbers soon to come)
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Old 11-18-2009, 06:30 PM   #15
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Stock shortblock LS2 , AS 5.3 heads made 455 on a Mustang dyno thru a 12 bolt,unlocked 5K stall. Should go close to 500 thru the more common 6 speed/10 bolt combo on a dyno jet. Rest of motor specs in my signature.
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Speed Density Tuned by Kaltech tuning on Long Island
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Did this with a GM head and pump gas!
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Old 11-19-2009, 08:33 PM   #16
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hmmm. I was gonna buy a texas speed 5.3 heads and cam but I didnt think I could trap 124ish in a full weight car on stock cubes. Looks like im wrong.
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Old 11-19-2009, 11:31 PM   #17
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Love this thread!
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B] LCA's, TQ arm, lid, K&N, shift kit, Vig. 3600 stall , 1 7/8's LT's, P&P T B w/bypass.[/b]
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Old 11-19-2009, 11:32 PM   #18
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My setup only makes 425RW, but thats through a th350 and 4600 non lockup stall, a 9 inch with 4.86 gear, and slicks.

I'm guessing i'm losing a good 25% at least through my drivetrain for dyno numbers.

stock bore lq9, C&C ported 5.3s, fast 92/92, 9.5:1 diamond pistons
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Old 11-20-2009, 10:14 AM   #19
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4.86 gears you running a 30 inch tire? What kinda RPM is required to get thru the beams?
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Speed Density Tuned by Kaltech tuning on Long Island
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Did this with a GM head and pump gas!
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Old 11-20-2009, 09:36 PM   #20
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524/501 862 castings with the set up below.
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