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Sled Pulling From Street to Pro-Mod, get your Sled Pulling fix here!

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Old 09-06-2023, 03:29 PM   #21
Jeremy001995
 
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Originally Posted by bateman View Post
Man 17 of timing seems extremely low for the rpm mentioned. Im no sled puller though.
have try it to 22 last pull more power top end but not extremly!
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Old 09-07-2023, 05:57 AM   #22
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Need to bring that timing up for sure. 22-23 at least.
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Old 09-07-2023, 06:48 AM   #23
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Yea maybe the 17 to 22 jump wasn’t enough for you to really notice the shift in the power curve but trying to carry that kind of rpm is going to need more. 16-18 is what people are running in stock trucks that never see 3k.
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Old 09-07-2023, 08:29 AM   #24
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Bring the timing up until it's hard to start when cold. You will see much more top end.
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Old 09-07-2023, 09:01 AM   #25
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I was really pleased with mine at 23 degrees of timing. There were a few cold mornings that it fogged everything out, but it would always light off.

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Old 09-07-2023, 07:32 PM   #26
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will install a adjustable gear this winter, will be more easy to do timing change!
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Old 09-08-2023, 06:57 AM   #27
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Put some 5k springs in it too with some decent valve springs so you can rev it
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Old 09-08-2023, 11:44 AM   #28
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Put some 5k springs in it too with some decent valve springs so you can rev it
alrealy have extreme duty pushrods and spring #165 from hamilton, do not want to run 5000rpm on a street truck
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Old 09-08-2023, 12:36 PM   #29
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Most seem to run 5ks for the low end fueling. Not necessarily to run out 5k rpm.
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Old 09-08-2023, 07:47 PM   #30
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Most seem to run 5ks for the low end fueling. Not necessarily to run out 5k rpm.
really? 5k gsk will be more low end fueling and smooth fuel curve?
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Old 09-11-2023, 06:24 AM   #31
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The more you spin it the less you'll hurt it. The lower the RPM you run it the more torque it will make, thus creating more stress on it. Spin that bitch and spin it hard!
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Old 09-11-2023, 12:31 PM   #32
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Spin that bitch and spin it hard!
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Old 09-11-2023, 07:49 PM   #33
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The more you spin it the less you'll hurt it. The lower the RPM you run it the more torque it will make, thus creating more stress on it. Spin that bitch and spin it hard!
yeah sure, will have to change someting because it need hp to spin more!
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Old 09-12-2023, 08:38 AM   #34
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yeah sure, will have to change someting because it need hp to spin more!
You aren't going to scare that engine below 5000rpm. I've only been past 4000 a few times with any of mine.



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Old 09-17-2023, 06:45 AM   #35
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last pull of the season yesterday,more loose track, was able to run 4 low, 22 timing, no more than 3500rpm and dropping to almost 3000rpm at the end of the track.finished 2nd and 3rd in the 2 class i made, not bad but i need more rpm again!!
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Old 09-18-2023, 03:00 PM   #36
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You will need a 5gsk as stated. It fuels harder and gives you more fuel at the top also. I use to leave the line at 5000-5300 on my street truck. it would bog down to about 4000 at the end. You will probably end up at 26-30 degrees of timing. As long as you have O rings or fire rings.
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Old 09-18-2023, 03:14 PM   #37
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Have you considered being realistic about trying to run an 11.1:1 final with at best 600whp?
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Old 09-18-2023, 05:13 PM   #38
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Have you considered being realistic about trying to run an 11.1:1 final with at best 600whp?
no clay track here, most are very loose, i alrealy run in 4lo on some track but need more rpm
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Old 09-18-2023, 09:38 PM   #39
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You don't think horsepower is a factor to being able to achieve more RPM?
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Old 09-19-2023, 04:30 AM   #40
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You don't think horsepower is a factor to being able to achieve more RPM?
ya for sure!! 50-100hp more ill be happy!
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