Manifolds for a 900-1000hp Build
04-16-2022 | 05:53 PM
#22
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Well I can also procharge my 496Ho. the Cast pistons just worry me a tad. even though procharger makes a bolt on kit. I wonder how reliable it is. I also own a procharger kit(M3sc) for a 502 MPI that i bought last year hoping to get my hands on a 502. Around here its tough and couldnt find a 502. Thats how i ran into this 597Cu.in. The only thing that concerns me on that 597 is the Accel DFI system. I dont have any programming cables for it or software or license Key to run the software. Everything is discontinued. If the engine needs tuning it would be a pain.
It would just suck passing up on that deal but the more i read forums. if i keep the boat around 650-750Hp. it seems it would be more reliable.
Ill see if i can find a picture of my hull inside. It is well built with side support and stringers from what i can remember, the motor sits inside and once its in, you would have a hard time changing a starter if you had to on my 496.
It would just suck passing up on that deal but the more i read forums. if i keep the boat around 650-750Hp. it seems it would be more reliable.
Ill see if i can find a picture of my hull inside. It is well built with side support and stringers from what i can remember, the motor sits inside and once its in, you would have a hard time changing a starter if you had to on my 496.
04-16-2022 | 08:19 PM
#23
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Posts: 1,028
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From: Ohio
Well I can also procharge my 496Ho. the Cast pistons just worry me a tad. even though procharger makes a bolt on kit. I wonder how reliable it is. I also own a procharger kit(M3sc) for a 502 MPI that i bought last year hoping to get my hands on a 502. Around here its tough and couldnt find a 502. Thats how i ran into this 597Cu.in. The only thing that concerns me on that 597 is the Accel DFI system. I dont have any programming cables for it or software or license Key to run the software. Everything is discontinued. If the engine needs tuning it would be a pain.
It would just suck passing up on that deal but the more i read forums. if i keep the boat around 650-750Hp. it seems it would be more reliable.
Ill see if i can find a picture of my hull inside. It is well built with side support and stringers from what i can remember, the motor sits inside and once its in, you would have a hard time changing a starter if you had to on my 496.
It would just suck passing up on that deal but the more i read forums. if i keep the boat around 650-750Hp. it seems it would be more reliable.
Ill see if i can find a picture of my hull inside. It is well built with side support and stringers from what i can remember, the motor sits inside and once its in, you would have a hard time changing a starter if you had to on my 496.
04-17-2022 | 08:05 AM
#24
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04-18-2022 | 06:59 AM
#25
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From: SW Ohio
I have a PowerQuest 280 with a 496HO and that bolt-on intercooled M1 Procharger kit. It was supposedly a PQ factory install. I know I wouldn't want to do the install with the engine in the boat. It is a very reliable setup, but it is definitely a shoehorn fit. The intercooler is right on top, right out front. I only get about 3-1/2lbs of boost at WOT, and don't go into positive manifold pressure until about 3200-3300RPM. You might run your engine serial numbers past a tech at Merc. They can tell you whether it was built with a forged crank or cast steel. I didn't see where/if you mentioned the vintage of the engine. The transition seems to be 2001-2002 where Merc switched from forged to cast on the crank, and there would appear to have been some on-again, off-again in this period. They do still have the cast pistons, but If you don't over boost them and make sure to avoid detonation, they should be fine.
Thanks. Brad.
(937)545-8991
