HP500s Carb build-up
07-24-2006 | 08:16 AM
#11
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Charter Member
Joined: Nov 2000
Posts: 7,213
Likes: 395
From: Merritt Is. Fl. USA
Re: HP500s Carb build-up
Originally Posted by axapowell
Dean,
First of all 700hp was dry dyno headers and NO accesories (fuel/sea water pump, power steering pump) and it can be done (and was). Secondly, the combo works and has given me close to 630hp net per motor. That is True horsepower proven with speed/ weight and so on....
Combo:
502 cubic inch motor
stock JE pistons
stock rods
stock crank
Crane Cams cam PN#168741 (Copper colored ones ONLY)
Crane Cams roller lifters
Crane Cams 1.7 ratio rockers for the exhaust
Crane Cams 1.8 ratio rockers for the intake
Manley push rods 25870 and 25788
AFR 315cc CNC'd heads
Dart 6200 intake (stock HP500)
Holley 800 CFM double pumper mech. secondaires (stock)
HVH 1" super sucker carb spacer
Crane Cams Ignition Box HI-6M 6000-6462
Crane Cams Ignition Coil LX92 730-0892
CMI Elbow top headers
8" Corsa transom mount mufflers
89 octnane fuel (not really needed)
aprox. 8.25:1 compression
That's pretty much it. If you have any other questions, PM me your phone number and I'll give you a call. I have ALL of the part numbers for EVERYTHING I used during the build and would be more than willing to supply you with them.
BTW...Make sure you have the oil pump screen welded on REAL good!! Ruined my weekend and is currently keeping me off the water!
Dave
First of all 700hp was dry dyno headers and NO accesories (fuel/sea water pump, power steering pump) and it can be done (and was). Secondly, the combo works and has given me close to 630hp net per motor. That is True horsepower proven with speed/ weight and so on....
Combo:
502 cubic inch motor
stock JE pistons
stock rods
stock crank
Crane Cams cam PN#168741 (Copper colored ones ONLY)
Crane Cams roller lifters
Crane Cams 1.7 ratio rockers for the exhaust
Crane Cams 1.8 ratio rockers for the intake
Manley push rods 25870 and 25788
AFR 315cc CNC'd heads
Dart 6200 intake (stock HP500)
Holley 800 CFM double pumper mech. secondaires (stock)
HVH 1" super sucker carb spacer
Crane Cams Ignition Box HI-6M 6000-6462
Crane Cams Ignition Coil LX92 730-0892
CMI Elbow top headers
8" Corsa transom mount mufflers
89 octnane fuel (not really needed)
aprox. 8.25:1 compression
That's pretty much it. If you have any other questions, PM me your phone number and I'll give you a call. I have ALL of the part numbers for EVERYTHING I used during the build and would be more than willing to supply you with them.
BTW...Make sure you have the oil pump screen welded on REAL good!! Ruined my weekend and is currently keeping me off the water!
Dave
Senator,
Thanks, I'll send you a pm with my phone # and I like to talk to you about it. That's really impressive that you made 700 HP on the dyno, acc. or not!
Thanks,
Dean
__________________
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07-24-2006 | 08:47 AM
#12
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Joined: Nov 2001
Posts: 3,622
Likes: 2
From: Austin
Re: HP500s Carb build-up
Originally Posted by axapowell
Dean,
First of all 700hp was dry dyno headers and NO accesories (fuel/sea water pump, power steering pump) and it can be done (and was). Secondly, the combo works and has given me close to 630hp net per motor. That is True horsepower proven with speed/ weight and so on....
Combo:
502 cubic inch motor
stock JE pistons
stock rods
stock crank
Crane Cams cam PN#168741 (Copper colored ones ONLY)
Crane Cams roller lifters
Crane Cams 1.7 ratio rockers for the exhaust
Crane Cams 1.8 ratio rockers for the intake
Manley push rods 25870 and 25788
AFR 315cc CNC'd heads
Dart 6200 intake (stock HP500)
Holley 800 CFM double pumper mech. secondaires (stock)
HVH 1" super sucker carb spacer
Crane Cams Ignition Box HI-6M 6000-6462
Crane Cams Ignition Coil LX92 730-0892
CMI Elbow top headers
8" Corsa transom mount mufflers
89 octnane fuel (not really needed)
aprox. 8.25:1 compression
That's pretty much it. If you have any other questions, PM me your phone number and I'll give you a call. I have ALL of the part numbers for EVERYTHING I used during the build and would be more than willing to supply you with them.
BTW...Make sure you have the oil pump screen welded on REAL good!! Ruined my weekend and is currently keeping me off the water!
Dave
First of all 700hp was dry dyno headers and NO accesories (fuel/sea water pump, power steering pump) and it can be done (and was). Secondly, the combo works and has given me close to 630hp net per motor. That is True horsepower proven with speed/ weight and so on....
Combo:
502 cubic inch motor
stock JE pistons
stock rods
stock crank
Crane Cams cam PN#168741 (Copper colored ones ONLY)
Crane Cams roller lifters
Crane Cams 1.7 ratio rockers for the exhaust
Crane Cams 1.8 ratio rockers for the intake
Manley push rods 25870 and 25788
AFR 315cc CNC'd heads
Dart 6200 intake (stock HP500)
Holley 800 CFM double pumper mech. secondaires (stock)
HVH 1" super sucker carb spacer
Crane Cams Ignition Box HI-6M 6000-6462
Crane Cams Ignition Coil LX92 730-0892
CMI Elbow top headers
8" Corsa transom mount mufflers
89 octnane fuel (not really needed)
aprox. 8.25:1 compression
That's pretty much it. If you have any other questions, PM me your phone number and I'll give you a call. I have ALL of the part numbers for EVERYTHING I used during the build and would be more than willing to supply you with them.
BTW...Make sure you have the oil pump screen welded on REAL good!! Ruined my weekend and is currently keeping me off the water!
Dave
8.25 cr, 502 ci's and 700hp with no accessories. doesnt add up to me. was their a blower on their for the dyno run?
07-24-2006 | 09:44 AM
#13
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Joined: Jan 2005
Posts: 648
Likes: 0
From: Tri-Cities, TN
Re: HP500s Carb build-up
Dean,
Are you going to go aftermarket heads? The OEM heads are capable of making the power but porting will be a must to make power under 5700 or 5800 rpm max. An aftermarket will flow more air at lower lifts giving us better cylinder fill and allowing us to run a milder cam. All of which is boat friendly.
Another thing to consider. The heads you have are 320cc runner. They will support more CID. Instead of $2K per engine for new heads you may want want to consider turning the 502's into 540's or 557. Displacement is any fast boaters friend. This route makes power at lower rpms. The torque allows you to turn a higher pitched prop which in turn allows you to go faster.
I just had a customer covert a set of bulldogs to 572CID engine with the same heads as you have, OEM's, and the engines made 680HP at 6K and 655#/ft @ 4800 on Tom Earharts dyno driving accessories but with dry headers.
If left as 502's with a good 300 to 315cc aftermarket head or OEM port work a legit 580 to 630HP is possible.
Are you going to go aftermarket heads? The OEM heads are capable of making the power but porting will be a must to make power under 5700 or 5800 rpm max. An aftermarket will flow more air at lower lifts giving us better cylinder fill and allowing us to run a milder cam. All of which is boat friendly.
Another thing to consider. The heads you have are 320cc runner. They will support more CID. Instead of $2K per engine for new heads you may want want to consider turning the 502's into 540's or 557. Displacement is any fast boaters friend. This route makes power at lower rpms. The torque allows you to turn a higher pitched prop which in turn allows you to go faster.
I just had a customer covert a set of bulldogs to 572CID engine with the same heads as you have, OEM's, and the engines made 680HP at 6K and 655#/ft @ 4800 on Tom Earharts dyno driving accessories but with dry headers.
If left as 502's with a good 300 to 315cc aftermarket head or OEM port work a legit 580 to 630HP is possible.
07-24-2006 | 12:59 PM
#14
Thread Starter
Charter Member
Joined: Nov 2000
Posts: 7,213
Likes: 395
From: Merritt Is. Fl. USA
Re: HP500s Carb build-up
Originally Posted by axapowell
Dean,
First of all 700hp was dry dyno headers and NO accesories (fuel/sea water pump, power steering pump) and it can be done (and was). Secondly, the combo works and has given me close to 630hp net per motor. That is True horsepower proven with speed/ weight and so on....
Combo:
502 cubic inch motor
stock JE pistons
stock rods
stock crank
Crane Cams cam PN#168741 (Copper colored ones ONLY)
Crane Cams roller lifters
Crane Cams 1.7 ratio rockers for the exhaust
Crane Cams 1.8 ratio rockers for the intake
Manley push rods 25870 and 25788
AFR 315cc CNC'd heads
Dart 6200 intake (stock HP500)
Holley 800 CFM double pumper mech. secondaires (stock)
HVH 1" super sucker carb spacer
Crane Cams Ignition Box HI-6M 6000-6462
Crane Cams Ignition Coil LX92 730-0892
CMI Elbow top headers
8" Corsa transom mount mufflers
89 octnane fuel (not really needed)
aprox. 8.25:1 compression
That's pretty much it. If you have any other questions, PM me your phone number and I'll give you a call. I have ALL of the part numbers for EVERYTHING I used during the build and would be more than willing to supply you with them.
BTW...Make sure you have the oil pump screen welded on REAL good!! Ruined my weekend and is currently keeping me off the water!
Dave
First of all 700hp was dry dyno headers and NO accesories (fuel/sea water pump, power steering pump) and it can be done (and was). Secondly, the combo works and has given me close to 630hp net per motor. That is True horsepower proven with speed/ weight and so on....
Combo:
502 cubic inch motor
stock JE pistons
stock rods
stock crank
Crane Cams cam PN#168741 (Copper colored ones ONLY)
Crane Cams roller lifters
Crane Cams 1.7 ratio rockers for the exhaust
Crane Cams 1.8 ratio rockers for the intake
Manley push rods 25870 and 25788
AFR 315cc CNC'd heads
Dart 6200 intake (stock HP500)
Holley 800 CFM double pumper mech. secondaires (stock)
HVH 1" super sucker carb spacer
Crane Cams Ignition Box HI-6M 6000-6462
Crane Cams Ignition Coil LX92 730-0892
CMI Elbow top headers
8" Corsa transom mount mufflers
89 octnane fuel (not really needed)
aprox. 8.25:1 compression
That's pretty much it. If you have any other questions, PM me your phone number and I'll give you a call. I have ALL of the part numbers for EVERYTHING I used during the build and would be more than willing to supply you with them.
BTW...Make sure you have the oil pump screen welded on REAL good!! Ruined my weekend and is currently keeping me off the water!
Dave
Great talking to you today!
I'm going to start gathering my parts for the build-up this winter. Right now, I've got to go buy this "Creek/canal cruiser" for HQ, and then I can start on my HP500 project.Thanks again, I'll be talking with you,
Dean
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Everything is for sale @ a certain $$
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07-26-2006 | 08:06 AM
#17
21 and 42 footers
Joined: Sep 2004
Posts: 8,207
Likes: 146
From: Richmond VA
Re: HP500s Carb build-up
Good Luck Dean
I'll be pulling down a set of 500efi's this winter looking to get into the low-mid 600hp range keeping the efi system in place.
The goal is punch to 540 C.I.
stock EFI intake
factory heads...(I hope)
89 octane fuel
once cooler weather gets here the tear down begins we may be comparing notes often!!!
I'll be pulling down a set of 500efi's this winter looking to get into the low-mid 600hp range keeping the efi system in place.
The goal is punch to 540 C.I.
stock EFI intake
factory heads...(I hope)
89 octane fuel
once cooler weather gets here the tear down begins we may be comparing notes often!!!
07-26-2006 | 08:16 AM
#18
Thread Starter
Charter Member
Joined: Nov 2000
Posts: 7,213
Likes: 395
From: Merritt Is. Fl. USA
Re: HP500s Carb build-up
T500hps,
Yeah, we will stay in touch, I'm going to do my build up this winter also. i don't know if i'm going to punch mine out to 540ci @ this time, (I'll save that for later in case I have a problem and I HAVE TO punch them out!
), but I'm probobly going with different heads, cam, etc. Is that your new boat in your avator?
Dean
Yeah, we will stay in touch, I'm going to do my build up this winter also. i don't know if i'm going to punch mine out to 540ci @ this time, (I'll save that for later in case I have a problem and I HAVE TO punch them out!
), but I'm probobly going with different heads, cam, etc. Is that your new boat in your avator?Dean
__________________
Everything is for sale @ a certain $$
Everything is for sale @ a certain $$
07-26-2006 | 08:40 AM
#19
21 and 42 footers
Joined: Sep 2004
Posts: 8,207
Likes: 146
From: Richmond VA
Re: HP500s Carb build-up
Originally Posted by Dean Ferry
T500hps,
Yeah, we will stay in touch, I'm going to do my build up this winter also. i don't know if i'm going to punch mine out to 540ci @ this time, (I'll save that for later in case I have a problem and I HAVE TO punch them out! ), but I'm probobly going with different heads, cam, etc. Is that your new boat in your avator?
Dean
Yeah, we will stay in touch, I'm going to do my build up this winter also. i don't know if i'm going to punch mine out to 540ci @ this time, (I'll save that for later in case I have a problem and I HAVE TO punch them out!
), but I'm probobly going with different heads, cam, etc. Is that your new boat in your avator?Dean
The boat currently has Prochargers on the 500's but they will be gone. I'll need 600+ to keep from feeling like I've converted the boat to a cruiser after re-builds. I figured 540 C.I. will help me keep the compression down. If after market head will get me an addl 40-60 HP then I just may go that route too. I plan to do this once! I do want the motor to look stock though.
Russ C.
07-26-2006 | 08:42 AM
#20
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Joined: Nov 2001
Posts: 3,622
Likes: 2
From: Austin
Re: HP500s Carb build-up
Originally Posted by t500hps
Yeah 382 Formula, It should arrive by this weekend.....know anybody that wants a 31 Formula, QUICK! The boat currently has Prochargers on the 500's but they will be gone. I'll need 600+ to keep from feeling like I've converted the boat to a cruiser after re-builds.
I figured 540 C.I. will help me keep the compression down. If after market head will get me an addl 40-60 HP then I just may go that route too. I plan to do this once! I do want the motor to look stock though.
Russ C.
The boat currently has Prochargers on the 500's but they will be gone. I'll need 600+ to keep from feeling like I've converted the boat to a cruiser after re-builds. I figured 540 C.I. will help me keep the compression down. If after market head will get me an addl 40-60 HP then I just may go that route too. I plan to do this once! I do want the motor to look stock though.
Russ C.
how fast does it run with the prochargers?
