low compression 548 dyno testing has begun!!
02-12-2017, 02:45 PM
#31
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I bought two new 454 r intakes they dont come with a spacer
02-12-2017, 02:57 PM
#33
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Great post. Keep it up.
Im excited to see what your boat runs too. I like the 30-33' step boats for making a real hot rod.
You're definitely on the right track about RPMs and operating range.
Gonna run the low compression until you get bored then boost them?
Im excited to see what your boat runs too. I like the 30-33' step boats for making a real hot rod.
You're definitely on the right track about RPMs and operating range.
Gonna run the low compression until you get bored then boost them?
02-12-2017, 03:26 PM
#35
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Smitty for President..............LOL................I wish he was closer to me, Id be over there heppin out.
Phragle, Your statement is correct, I was going to run one just didnt know what size.
Phragle, Your statement is correct, I was going to run one just didnt know what size.
02-12-2017, 03:36 PM
#36
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On another note, these Canton power pans can go in Garbage, waste of 650 each, when dyno testing started oil pressure would dive from 75/80 psi to 40 ish and back several times from 6000 to 6700, pulled heads, opened up drain back holes, then oil press dipped LESS from 75/80 to 60/65, punched drain holes in lifter valley screens which I have used in the last 15 motors i built with no problems and with a extra quart in pan oil press twitches 5 psi around 6200/6400. I guess 8" deep pans suck for these rpms, never had this problem with my hardin 14 quart off shore pan, same motor at same rpms! On ANOTHER note, if it turns out this speedmaster intake loses 25+ hp when going down from 3" spacer to 1" spacer I think we may have found 25+ hp that tim full force may be missing with NO spacer on same intake!!!!
02-12-2017, 03:41 PM
#38
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Well, were only starting, i have a hard time believing it takes 6 or 8 jet sizes difference side to side to get afrs somewhat close w a 1" spacer vd 3" being okay square jetted. If this is true when i add 2 more inches under dominator the side jetted up should immediately go fat. I will NEVER even be running a carb on my boat but now i have to know the answer, ill run this fvker till its wore out to find out!
02-12-2017, 03:45 PM
#39
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On another note, these Canton power pans can go in Garbage, waste of 650 each, when dyno testing started oil pressure would dive from 75/80 psi to 40 ish and back several times from 6000 to 6700, pulled heads, opened up drain back holes, then oil press dipped LESS from 75/80 to 60/65, punched drain holes in lifter valley screens which I have used in the last 15 motors i built with no problems and with a extra quart in pan oil press twitches 5 psi around 6200/6400. I guess 8" deep pans suck for these rpms, never had this problem with my hardin 14 quart off shore pan, same motor at same rpms! On ANOTHER note, if it turns out this speedmaster intake loses 25+ hp when going down from 3" spacer to 1" spacer I think we may have found 25+ hp that tim full force may be missing with NO spacer on same intake!!!!
Per our convo, I did look up the pan used on the 6200rpm 565 (4.375 stroke) that saw no oil psi issues and it is not the one you have, it was the #18-302
https://www.cantonracingproducts.com...MP-MARINE-PAN/
02-12-2017, 04:20 PM
#40
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Thats a nasty ass looking intake, my speedmaster looked muvh better box stock. I have a pic of it in my previous pics on here but i never figured out how to post them using phone . It says to click and drag but it only works on my home computer, i took a pic of it modified yesterday but thats with my old phone and havent got them transferred over yet
Last edited by articfriends; 02-12-2017 at 04:24 PM.
