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  #41  
Old 05-19-2020, 05:21 AM
cleatus12r cleatus12r is offline
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Originally Posted by Chvyrkr View Post
Who the f__K is still tuning for torque?
Who's still trying to make big power with a 7.3 when EVERY option since 2011 makes way more reliable power (and has at least 62.75 cup holders)?
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  #42  
Old 05-19-2020, 08:20 PM
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Any experienced tuner should be able to tune for torque. It's comes down to limiting timing advancement and fueling down low to keep cylinder pressure from venting part's. There was a thread a decade ago where Swamps tuned a 7.3 to make 1000 hp on oem forged rods. They tuned it so the power didn't really start coming on until the engine was over 2000 rpm.
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  #43  
Old 05-20-2020, 02:25 PM
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Quote:
Originally Posted by superpsd View Post
Any experienced tuner should be able to tune for torque. It's comes down to limiting timing advancement and fueling down low to keep cylinder pressure from venting part's. There was a thread a decade ago where Swamps tuned a 7.3 to make 1000 hp on oem forged rods. They tuned it so the power didn't really start coming on until the engine was over 2000 rpm.
I would be super interested in reading that, but I'm sure it's long gone in the sea of the internet
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  #44  
Old 05-20-2020, 05:06 PM
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I didn't find that thread but this article is interesting. A few of those trucks cracking 900hp on the dynos had stock bottom ends. Granted that's just on a dyno put some real load like a tractor pull or a few trips down the track and they would probably be on borrowed time.
https://www.pressreader.com/usa/dies...82591673705611
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  #45  
Old 05-20-2020, 09:31 PM
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That is a cool little read, even one guy with 205/100s making almost 900hp on spray? That's crazy. Another guy making 850 with stick valve springs and pushrods is impressive
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  #46  
Old 05-21-2020, 12:20 PM
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A bunch of those guys had near stock engines. Keep Cylinder pressure in check with good tuning and backpressure low with a turbo capable of exhaling and Walla big power without breaking stuff. At least for a few pulls.
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1948 GMC pickup Detroit 453T
1951 Mack A51T
1916 Federal 1 1/2 Ton
  #47  
Old 05-21-2020, 02:57 PM
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I am very curious how long those lasted. Looks like a few of them did some good pulls, went out for burnouts and 1/4 mile drags though.

I'd be happy with a 200k mile 500hp motor.
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  #48  
Old 05-22-2020, 05:18 PM
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Some are probably still running. Torque is what hurts the stock bottom ends. Tune the torque out and put the power in latter and should hold for a while. Anything can happen. Matt Maier of Irate has making big power with a stock forged rod engine. I read he bent a rod in the original engine after enough passes down the strip.
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1948 GMC pickup Detroit 453T
1951 Mack A51T
1916 Federal 1 1/2 Ton
  #49  
Old 05-25-2020, 02:56 PM
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Quote:
Originally Posted by cleatus12r View Post
Who's still trying to make big power with a 7.3 when EVERY option since 2011 makes way more reliable power (and has at least 62.75 cup holders)?
😆😆😆
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  #50  
Old Yesterday, 06:04 PM
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I wonder if Charles pmr motor is still kicking with those 250/200s?





All joking aside, keep the cylinder pressure down low in the rpm to a minimum
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