A well thought out 496 combination using around 10 to 1, a good set of heads and a matching cam profile to peak around 6200 to 6400 is do able.
yes you are exactly right chris the right cam profile is the key along with heads but i have no problem believing that 700hp can be reached with a 10.1 motor at 6500 or less.i wouldnt personally go over board on big runners in the heads and play it alittle conseravtive with the cam profile and you will have a torque monster if the torque is high the hp is gonna folllow.later travis.
A Couple Of People Had Recomended That I'd Call Chris. I Assume An Aa-or-a Impeller Would Be A Better Match For A 496 (depending On Cam Grind).i'm In Utah Does Altitude Factor In To What Comp. Ratio I'd Want? Or Not Really. I'd Like To Think I Can Still Use My Brodix Heads. I BELIVE MY RUNNERS ARE 310 OR 320.
Mine is a 10.5:1 496 with .25 longer rods GMPP aluminum heads, solid roller, edelbrock tunnel ram, two holley 600's. two bolt main.
It made 632 horse at around 6200 and 592 ft.lbs, sorry don't have the dyno sheet right in front of me. That was on 91 octane.
The higher in elevation = the stronger the choke hold.
If your, say 6000ft elev, who gives a rats ass about our sea level hp quotes. You'll be nothing near it.
This is where uncorrected vs corrected dyno sheets come into play !!!
Your '700hp' will be way more difficult to acheive than our 700hp.
Yes, you could (depending on actual elevation) run more measured compression than us but you can't back back the lossed oxygen without a supercharger.
I Realize My Locationaly Challenged Enviroment Is Gonna Kill Those # Thats Why I Was Shootin High. If I Can Ever Figure Out How To Post An Avatar, For My Location Its Going To Say Land Of 1/2 Strength Beer & Air.:d Elev Here Is Prox 4500 Ft.
At your elevation you will be leaving about a 75 to 100 on the table as compared to an equal engine at sea level. So to run your number it will take a "head scratching" build. Will have to over cam the engine somewhat to help stuff the cylinders as much as possible. We need to look at other areas to help make HP.
You may want to consider:
More compression
More inches
A huffer build....
yeah, something like maybe a BLOWER. One things for sure, if you keep the boat up all the time, squeeze it harder, like 11to1, if you come down off Mt. Everest, then throw some 110 at it.
I Live At 4500 Or So, But Most My Family Have Property At Flaming Gorge (6000+), So I Go There Quite A Bit. I Guess I Should Call It Blower Time. Gotta Sell A Car 1st. Thanks All.(i Gotta Quit Scratchin My Head It Hurts Now)
At your elevation you will be leaving about a 75 to 100 on the table as compared to an equal engine at sea level. So to run your number it will take a "head scratching" build. Will have to over cam the engine somewhat to help stuff the cylinders as much as possible. We need to look at other areas to help make HP.
You may want to consider:
More compression
More inches
A huffer build....
This is the man you need to talk to. He just helped me put together my 502 with AFR heads and 9.2 to 1 compression and it made 712hp on the dyno last week at 6200 rpms....oh yeah one more thing corrected elevation that day was 3600'. Not bad for a pump gas motor....
This is the man you need to talk to. He just helped me put together my 502 with AFR heads and 9.2 to 1 compression and it made 712hp on the dyno last week at 6200 rpms....oh yeah one more thing corrected elevation that day was 3600'. Not bad for a pump gas motor....
Edited: I typed hard to understand reply. See my next post.
Posting Permissions
Reply With Quote