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Old 01-06-2005, 07:32 AM
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Default power curves

Any one have the power curves for an HP500 and/or 525efi?
If not the graph, then just the data will be fine.
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Old 01-06-2005, 06:32 PM
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Default Re: power curves

Find jeffs post (wags 382) called cam help with afr 305 heads about 3 pages back from here,he just dynoed his hp 500 carb motors for before results and if you read thru thread he posted his dyno results(and i might add he made around 530 hp! with 200 plus hour motors turning all his accessorys etc),Smity
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Old 01-06-2005, 07:00 PM
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Default Re: power curves

Here you go.
Attached Thumbnails power curves-hp500-dyno.jpg  

Last edited by WAGS382; 01-06-2005 at 07:03 PM.
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Old 01-06-2005, 07:14 PM
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Default Re: power curves

Invalid Attachment specified.
If you followed a valid link, please notify the webmaster
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Old 01-06-2005, 07:20 PM
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Default Re: power curves

Okay, it's fine now.
I like the nice flat torque curve along with it's starting and ending rpms.
It should be interesting with the 305's. Is there a cam change being considered?
Russ
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Old 01-06-2005, 07:36 PM
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Default Re: power curves

Russ,
Yes I picked out a new custom ground cam and talked to Bob Madara after the fact and he liked the specs. I would be very happy if I can get 1.33 hp/cid like you did, but I have a much more conservitive number in my head and it is over 600 .
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Old 01-07-2005, 07:28 AM
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Default Re: power curves

Wags, thanks for the post... just what I was looking for.
was that dyno was done before any mods?
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Old 01-07-2005, 04:16 PM
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Default Re: power curves

Stormrider,
The only thing I did was mill off the choke horn and do some mild blending in the carb. These are 1998 factory sealed HP 500's with 270 hrs on them. I never even changed the ignition timing. Jeff
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