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 Post subject: Boss 347 dyno results
PostPosted: Sun Aug 19, 2018 11:13 am 
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Joined: Sat Dec 22, 2012 9:04 am
Posts: 15
I hope it is OK to post this since it is the original Clevor (Boss 302).

Standard correction: max HP 526.4 @ 6900 RPM, max TQ 434.3 @ 5100 RPM. 400 or more torque from 3600 RPM through 6900 RPM.

10.05:1 flat tops (RaceTec), 3.4 stroke (Molnar), 5.4 rods (Molnar), 1969 Boss 302 block and heads (mild porting), Edelbrock intake (7129) untouched, 1" open spacer, calibrated 750 HP (80528-2), headers 1.875" stepped to 2", 36 long, 3.5" collector. Solid flat tappet cam (custom) 296/304, 244/252, .612/.609 NET, 108 LSA.

It will be rowdy in a street car but, I'll at least try it before deciding to change anything.

Chuck


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PostPosted: Sun Aug 19, 2018 12:51 pm 
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Joined: Mon Oct 29, 2012 9:05 am
Posts: 2454
Excellent! Sounds like my kind of an engine....

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Brent Lykins, Lykins Motorsports
www.lykinsmotorsports.com
brent@lykinsmotorsports.com


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PostPosted: Sun Aug 19, 2018 3:54 pm 
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Joined: Sat Dec 22, 2012 9:04 am
Posts: 15
Thanks Brent! I wish I had the resources burn to do further development. I've become convinced a 1.65 rocker on the exhaust would produce more power but, I could be full of it. The intake really surprised me, in a good way.

Chuck


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PostPosted: Wed Sep 05, 2018 12:15 pm 
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Joined: Wed Oct 31, 2012 11:24 am
Posts: 283
Chuck as I mentioned when you shared this with me the 400+tq from 3600-6900 is more like incredible. Shows the Boss isn't just a low torque high rpm engine. It goes to show that the right combination makes great power , just like Brent's 351C build and surprises everyone.
Great work,
Randy


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PostPosted: Sat Sep 29, 2018 12:32 am 
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Joined: Thu Mar 16, 2017 11:16 pm
Posts: 10
I plugged in the basic build details into my Engine Analyzer v3.4 and was within just 2 or 3 HP of your actual results. The torque was low, but HP was super close.

Great build there! Very nice work!


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PostPosted: Sun Oct 28, 2018 11:55 am 
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Joined: Mon Nov 05, 2012 3:54 pm
Posts: 37
Those are really good numbers for OEM heads! :D

c9zx wrote:
I hope it is OK to post this since it is the original Clevor (Boss 302).

Standard correction: max HP 526.4 @ 6900 RPM, max TQ 434.3 @ 5100 RPM. 400 or more torque from 3600 RPM through 6900 RPM.

10.05:1 flat tops (RaceTec), 3.4 stroke (Molnar), 5.4 rods (Molnar), 1969 Boss 302 block and heads (mild porting), Edelbrock intake (7129) untouched, 1" open spacer, calibrated 750 HP (80528-2), headers 1.875" stepped to 2", 36 long, 3.5" collector. Solid flat tappet cam (custom) 296/304, 244/252, .612/.609 NET, 108 LSA.

It will be rowdy in a street car but, I'll at least try it before deciding to change anything.

Chuck


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