Hawk 525SC Upgrade
08-21-2019, 12:59 AM
#11
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Thread Starter
If you're doing new heads and full roller cams, you should be able to make 600hp+ with the 174's.
I would build the engines internally to be able to handle 700+hp.
Then I would use your 174's and see what they do. I wouldn't do chillers as I think you'd be better off go to just go with bigger blowers if you want more power.
You will probably need more carb. I would send yours out and have them made to 950-1000cfms.
If the 174's don't make enough hp for you, then upgrade to big blowers later.
I would build the engines internally to be able to handle 700+hp.
Then I would use your 174's and see what they do. I wouldn't do chillers as I think you'd be better off go to just go with bigger blowers if you want more power.
You will probably need more carb. I would send yours out and have them made to 950-1000cfms.
If the 174's don't make enough hp for you, then upgrade to big blowers later.
08-21-2019, 07:21 AM
#12
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Platinum Member
This is how my 454 build dyno'd
668 ft/lbs at 3600
616 hp at 5500
incredibly flat torque curve 640ft/lbs at 2700
ran on 100 octane
454 -60 over, 188 heads, Howards roller cam, 8.5 static comp
177 blower with 3" pulley on top and 7" on the bottom
Teague chillers too
Single Holley Sniper
Dyno headers with magnaflow mufflers
668 ft/lbs at 3600
616 hp at 5500
incredibly flat torque curve 640ft/lbs at 2700
ran on 100 octane
454 -60 over, 188 heads, Howards roller cam, 8.5 static comp
177 blower with 3" pulley on top and 7" on the bottom
Teague chillers too
Single Holley Sniper
Dyno headers with magnaflow mufflers
08-22-2019, 12:02 AM
#14
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Thread Starter
08-22-2019, 09:27 AM
#15
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I can't speak for what may have been in their previously but the boat currently has Hawk 525SC's basically a 420 with a 174 blower. It's a mild build considering the way the boat runs. It does need to be beefed up a bit.
08-22-2019, 03:11 PM
#16
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iTrader: (4)
I forget what were in the boat. I thought the they were Hawk 540's, but could as easily be 525's. I believe they came out of the Hawk Cigarette. Are the Dart Iron Eagle heads still on the engines?
08-22-2019, 06:22 PM
#17
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