Anyone Want To Guess
#1
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Anyone Want To Guess
HOM MUCH HP I AM RUNNING AFTER UPGRADES.
STOCK 91 454/B1 MERCRUISER 330 HP
ADDED 502 ALUMINUM HEADS
ROLLER ROCKERS
502/502 CAM
750 HOLLEY
MARINE POWER MANIFOLDS
502 INTAKE
10:1 COMP I THINK
MY GUESS IS 450HP TO 475HP
ALL INPUT IS WELCOME
STOCK 91 454/B1 MERCRUISER 330 HP
ADDED 502 ALUMINUM HEADS
ROLLER ROCKERS
502/502 CAM
750 HOLLEY
MARINE POWER MANIFOLDS
502 INTAKE
10:1 COMP I THINK
MY GUESS IS 450HP TO 475HP
ALL INPUT IS WELCOME
#4
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Join Date: Nov 2000
Location: Grand Haven, MI USA
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Re: Anyone Want To Guess
Well you opened up the breathing but the pistons are still 454 right? I would say more like 420, a 100hp increase would be huge and an HP 500 has about 474hp, which you are close to except for the holes being 454 still. To bolt on 100hp would mean a charger of some sort, either super or whipple or No2. There should be a formula but I don't know it. If I am wrong let me know but I had a magnum 454 and those are like 365, I also had 502s built to HP500 specs and saw 480hp. Let us know if you dyno it or if you realy know.
#5
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Re: Anyone Want To Guess
Originally Posted by MitchStellin
Well you opened up the breathing but the pistons are still 454 right? I would say more like 420, a 100hp increase would be huge and an HP 500 has about 474hp, which you are close to except for the holes being 454 still. To bolt on 100hp would mean a charger of some sort, either super or whipple or No2. There should be a formula but I don't know it. If I am wrong let me know but I had a magnum 454 and those are like 365, I also had 502s built to HP500 specs and saw 480hp. Let us know if you dyno it or if you realy know.
STOCK SET UP WITH A 23P MIRAGE WAS 59.9 GPS, 30 GALLONS OF FUEL AND 2 200LBS GUYS.