Is this believable HP out of a 572?
01-10-2016 | 09:04 PM
#11
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Joined: Jul 2004
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From: chicago
I read this on a site somewhere it could of even been on here:
"these 572's so far they make 780hp @5900 & 786ft pounds torque @4700 super flow #'s ....dart pro ones 336cnc heads,dart intake, big m block ,top dollar rotating assbly, and a .612, .612 valve lift with 256in & 258ex @.050 on a 114 CL hyd roller."
The reason I ask is Im in the middle of a 582 build and expecting 725hp with brodix bb-3 cnc'd 365 runners, flat top pistons, the cam will be .258int & 262 ex @.050 with .612 lift on both and 114 sep.
Where Im at is 1400ft elevation and around 70-80f temps on an average boating day.
"these 572's so far they make 780hp @5900 & 786ft pounds torque @4700 super flow #'s ....dart pro ones 336cnc heads,dart intake, big m block ,top dollar rotating assbly, and a .612, .612 valve lift with 256in & 258ex @.050 on a 114 CL hyd roller."
The reason I ask is Im in the middle of a 582 build and expecting 725hp with brodix bb-3 cnc'd 365 runners, flat top pistons, the cam will be .258int & 262 ex @.050 with .612 lift on both and 114 sep.
Where Im at is 1400ft elevation and around 70-80f temps on an average boating day.
01-11-2016 | 10:09 AM
#12
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this is a dyno video of a local guy here Mark at MER that built this motor. Its a 572. Lower compression on 89
https://www.youtube.com/watch?v=THTwkuWLpCE
there is a separate video of the numbers and AFR i believe. looks to run on the lean side though. Made over 800HP though N/A
https://www.youtube.com/watch?v=THTwkuWLpCE
there is a separate video of the numbers and AFR i believe. looks to run on the lean side though. Made over 800HP though N/A
01-11-2016 | 11:12 AM
#13
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Nothing earth shattering about those numbers at all. Be interesting to know the compression and what exhaust he has. Offshorexcursion's 572's made 800 on the dyno, 750 with his headers.
Last edited by horsepower1; 01-11-2016 at 11:14 AM.
01-11-2016 | 11:53 AM
#14
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From: michigan
Very impressive ! Are there any dyno sheets to show these numbers and why such a change with headers?
01-11-2016 | 12:59 PM
#16
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From: Vancouver BC
It's interesting reading old posts.. I still think the torque is a bit high on the example engine, but after using a few sets of the Darts over the years, and dynoing a couple hundred more motors since that post, it's probably not quite as far off as I obviously thought it was back then. Bogus may have been a bit strong. lol
01-11-2016 | 01:14 PM
#17
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