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High mileage short blocks and dyno numbers

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Old 05-31-2015, 01:29 PM
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Default High mileage short blocks and dyno numbers
Ok I've always been curious as to how those higher mileage engines are holding up on the dyno.. If you have a GM stock short block (gen II - IV) with 75,000 miles or more at the time of your build post your setup, mileage, rwhp/rwtq and/or 1/4 mile times.. Let the fun begin lol..
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Old 05-31-2015, 02:59 PM
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78,000 miles. PRC 5.3 heads, MS3 cam, fast 78mm intake. 430hp on a dyno jet with a t56 and 12 bolt.
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Old 05-31-2015, 06:07 PM
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Nice setup.. Let's keep em coming..
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Old 05-31-2015, 08:45 PM
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My old setup in sig made 450/438 with 172k on the complete stock drivetrain when mods were done. I daily drove it until it had 240,xxx or so on it. Was running fine when I sold it.
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Old 05-31-2015, 10:46 PM
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Originally Posted by JRENIGAR
My old setup in sig made 450/438 with 172k on the complete stock drivetrain when mods were done. I daily drove it until it had 240,xxx or so on it. Was running fine when I sold it.
Wow!! Let's keep em coming guys
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Old 06-01-2015, 04:22 AM
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SBE LS1 M6 , 80,000 - 403/358

EDC Hellion, 244/248 .630 112.0, FAST 92 / 92, FTP Lid, CHRS1313 non A/C, stock 241 heads, ARH 1 7/8 w cats, Borla Cat back.

Best time so far is 12.46 at 116 with a 1.9x 60ft.
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Old 06-01-2015, 12:04 PM
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2002 WS6 with about 110k miles made 414rwhp 430rwtq ran a 11.78@116mph on a 100* day july in texas mods are yank 4K stall full exhaust, TSP lid, RPM 5 cam, an most important its SAM Miller TUNED
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Old 06-01-2015, 10:02 PM
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Impressive cars you guys have!!
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Old 06-04-2015, 07:49 PM
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The video says it all...

https://www.youtube.com/watch?v=z7mlArSR0rQ

I am about to yank this drivetrain out put some PRC LS6 heads, a cam, headers, a 3200 stall and spray on it... and jam it in the wagon. Because family car: https://ls1tech.com/forums/conversio...ion-wagon.html
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Old 06-05-2015, 09:56 AM
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Originally Posted by scotty2000ss
SBE LS1 M6 , 80,000 - 403/358

EDC Hellion, 244/248 .630 112.0, FAST 92 / 92, FTP Lid, CHRS1313 non A/C, stock 241 heads, ARH 1 7/8 w cats, Borla Cat back.

Best time so far is 12.46 at 116 with a 1.9x 60ft.
Why such a huge cam with stock heads?
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Old 06-05-2015, 10:03 AM
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Originally Posted by 99z28383
Why such a huge cam with stock heads?
Why not?
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Old 06-05-2015, 01:18 PM
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Originally Posted by scotty2000ss
Why not?
Bigger is not always better, your 1/4 mile time reflects that.
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Old 06-05-2015, 02:04 PM
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Originally Posted by 99z28383
Bigger is not always better, your 1/4 mile time reflects that.
His 1/4 is more reflective of the fact that it's a fully loaded convertible, IE weight. For the weight and power, that's a pretty good 1/4 time/mph
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Old 06-05-2015, 02:15 PM
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Originally Posted by 99z28383
Bigger is not always better, your 1/4 mile time reflects that.
Actually I think that's a good time for an M6 cutting a 1.9 60ft. I wasn't bragging about my current set up. Just stating what it is. Everyone on the forum knows I'd pick us substantially with heads.
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Old 06-05-2015, 02:46 PM
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Originally Posted by scotty2000ss
Actually I think that's a good time for an M6 cutting a 1.9 60ft. I wasn't bragging about my current set up. Just stating what it is. Everyone on the forum knows I'd pick us substantially with heads.
If you're on MT ET streets, your 1.9 60' could be from the lack of torque and mid range power. I don't think your trap speed is bad, but some gears would drastically drop your ET. What do you rev that thing to?
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Old 06-05-2015, 02:53 PM
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Originally Posted by 99z28383
If you're on MT ET streets, your 1.9 60' could be from the lack of torque and mid range power. I don't think your trap speed is bad, but some gears would drastically drop your ET. What do you rev that thing to?
I haven't ran it on the ET streets yet. The times are from worn out nitto nt555r. I have my shift light at 6700. My gears are fine for my 10 bolt. They are 3.90s.
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Old 06-05-2015, 02:55 PM
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Follow my journey so we don't clog up this thread

https://ls1tech.com/forums/12-second...-115-65-a.html
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Old 06-05-2015, 02:59 PM
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Originally Posted by scotty2000ss
Follow my journey so we don't clog up this thread

https://ls1tech.com/forums/12-second...-115-65-a.html
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Old 06-05-2015, 09:08 PM
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I know them high mileage short blocks are out there.. Don't be shy now
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Old 06-11-2015, 02:17 PM
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Default High mileage short blocks and dyno numbers
Did HCI to the Camaro at 145k miles. Everything's in sig:

AFR 205's @ 59cc
BTR platinum springs / Ti Retainers
7.4 5/16" pushrods
LS7 lifters
Stock GM MLS .051 head gaskets
Fast / NW 92
Ed Curtis 229/236 .631.631 112+2
Monster 2 clutch
SLP lid and Speed Density tuned

460/420 corrected, Tuned by Geoff Skinner @ EPS

I beat on that car till I sold her @ approximately 165k miles? A guy drove from Nebraska to me (Louisiana) to pick her up.
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