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Another guest the hp thread?

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MattsGarage View Drop Down
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    Posted: Jun/24/2019 at 3:41pm
So my engine/car may never see a dyno, and I enjoy the discussion on this subject probably more than anything. Here goes:

401 @ .030 over
10.3 compression
Stock crank/rods 
Edelbrock heads with only slight cleanup/performance valve job
Heads and deck both had .004 taken off to true up
.047 quench.
Solid flat tappet, 254/260 @.050 .587/.592 lift 108 lsa
Scorpion roller rockers 1.6
Torker intake/quick fuel 850 carb. 
1 3/4 headers

It also has a sticker on one valve cover that reads "this sticker adds 5 hp"
So please figure this in with your guesses Wink
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BassBoat View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote BassBoat Quote  Post ReplyReply Direct Link To This Post Posted: Jun/24/2019 at 4:25pm
I helped a guy with a similar combination, he made 440 ish with an air gap and Edelbrock.  Just over 500 with a torker and QF Holley.  Your solid lifter cam is probably good for another 20 or 30 HP.  So my guess is somewhere around 540 HP.

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Boris Badanov View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Boris Badanov Quote  Post ReplyReply Direct Link To This Post Posted: Jun/24/2019 at 8:05pm
IMO there is a need for more compression with that cam.

If there is no heat stove and 12:1 I would side with 500+



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billd View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote billd Quote  Post ReplyReply Direct Link To This Post Posted: Jun/24/2019 at 8:08pm
Suggestion  - someone start a pool and anyone who wants in pays a buck, and submits their best calculation and estimate. When the engine is finally on a dyno - the person who hits the correct HP as per the dyno sheets wins the pot.

Well......... why not? LOL. We've got some folks who really do a good job figuring this sort of thing based on their experiences and their own trials. They may as well get a few bucks? 
No? Bad idea? Ok.
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ghinmi View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ghinmi Quote  Post ReplyReply Direct Link To This Post Posted: Jun/24/2019 at 8:56pm
I had a very similar engine.  Same cubes, intake, etc.  Have a very similar cam and ported iron heads that flowed low 270s.  Major difference was mine had crappy Edelbrock headers.  Made 499 but hit a brick wall, should have made more.  Later switched to long tube headers and it picked up a bunch at the track so that was the rpm issue on the dyno.



Edited by ghinmi - Jun/24/2019 at 8:59pm
1975 Cherokee S - Turbo Hemi stick shift autocross/drag race/street 9.97 @ 140.4
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MattsGarage View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MattsGarage Quote  Post ReplyReply Direct Link To This Post Posted: Jun/25/2019 at 4:31pm
Thanks for the input guys. It might get put on a chassis dyno at some point, but not anytime soon, I have a lot to finish up on the rest of the car. Maybe someday we will get to see.
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