360 Street/Strip Bruiser-Dyno results inside
#1625558
05/27/14 08:57 AM
05/27/14 08:57 AM
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Joined: Feb 2006
Posts: 1,051 The Great White North
RAMM
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super stock
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The build: '84 360 block .060" (bores would not cleanup at anything less) Eagle steel crank 3.58" (stock stroke) Scat I-beams (stock length) Icon Forged flat tops 4.06" @ zero deck 1/16" ring pack Napier 2nd Felpro 519 SD gaskets Comp Cam 294 S w Hughes EDM lifters Heavily ported EQ Magnums 300cfm @ .600"+ T&D 1.5/1.5 shaft rockers Eddy 2815 SV intake Holley 950 HP Ultra 1 5/8"-1 3/4" dyno headers with Magnaflow muffs.
So here we have a 10.8 comp stock stroke 360 with a low lift solid lifter camshaft I bought at a garage sale for $60 with heads that are iron. Admittedly the trickest parts of the build are the rockers and induction. Nevertheless I was pleasantly surprised with the outcome. J.Rob
2009 PHR\EMC Competitor 2010 PHR\EMC Competitor 2011 PHR\EMC Competitor 2012 PHR\EMC Competitor 2013 PHR\EMC Competitor 2014 HotRod/EMC Competitor 2015 HotRod/EMC NoShow 2016 HotRod/EMC 3rd place SPEC Bigblock 2018 HotRod/EMC 7th place G3
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Re: 360 Street/Strip Bruiser-Dyno results inside
[Re: RAMM]
#1625559
05/27/14 08:58 AM
05/27/14 08:58 AM
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Joined: Feb 2006
Posts: 1,051 The Great White North
RAMM
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Here's the results. This was the final test last Friday. I turned it 7250 rpm many times just to see the shape of the curve. This engine is the happiest revving 360 I've ever built. This would certainly be happier in a more strip oriented ride I would imagine.
Yes it's a little rich--I ran out of gas and time on Friday. There may be more. J.Rob
2009 PHR\EMC Competitor 2010 PHR\EMC Competitor 2011 PHR\EMC Competitor 2012 PHR\EMC Competitor 2013 PHR\EMC Competitor 2014 HotRod/EMC Competitor 2015 HotRod/EMC NoShow 2016 HotRod/EMC 3rd place SPEC Bigblock 2018 HotRod/EMC 7th place G3
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Re: 360 Street/Strip Bruiser-Dyno results inside
[Re: cudadoug]
#1625568
05/27/14 02:41 PM
05/27/14 02:41 PM
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Joined: Feb 2006
Posts: 1,051 The Great White North
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Its the old CC 294s 248/248 110. J.Rob
2009 PHR\EMC Competitor 2010 PHR\EMC Competitor 2011 PHR\EMC Competitor 2012 PHR\EMC Competitor 2013 PHR\EMC Competitor 2014 HotRod/EMC Competitor 2015 HotRod/EMC NoShow 2016 HotRod/EMC 3rd place SPEC Bigblock 2018 HotRod/EMC 7th place G3
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Re: 360 Street/Strip Bruiser-Dyno results inside
[Re: RAMM]
#1625570
05/27/14 03:39 PM
05/27/14 03:39 PM
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Joined: Jan 2005
Posts: 12,419 Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
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Very impressive! I bet a set of 1.6 rockers would add quite a bit, get it more into the flow zone of the heads and slightly improve the PR geometry
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: 360 Street/Strip Bruiser-Dyno results inside
[Re: sshemi]
#1625572
05/27/14 06:46 PM
05/27/14 06:46 PM
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Joined: Aug 2003
Posts: 3,245 Between a rock & a hard place
cudadoug
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Quote:
Wow. Those heads must be HUGE making peak power that high!
I can't speak for these heads, but I doubt it. Velocity seems to be a key part of the Magnum head. When I fist looked a set of RHS ports, I thought, "NO WAY will these flow." I was wrong...end of story.
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Re: 360 Street/Strip Bruiser-Dyno results inside
[Re: RAMM]
#1625579
05/28/14 11:53 AM
05/28/14 11:53 AM
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Joined: Aug 2004
Posts: 2,128 sweden
sshemi
top fuel
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top fuel
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sweden
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Re: 360 Street/Strip Bruiser-Dyno results inside
[Re: sshemi]
#1625580
05/28/14 01:09 PM
05/28/14 01:09 PM
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Joined: Jan 2003
Posts: 9,876 Weddington, N.C.
Streetwize
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Weddington, N.C.
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I just had Bullet grind me a small solid roller for my 440 W2 CRA 284/292-09UR (U means its the old Ultradyne grind) 284/292 @.020 251/259@.050 172/178@.200 .605/.605 (1.5:1) .645/.645 (1.6:1) 109 spread With the right springs I bet it would be a pretty good fit for this one as well, probably as good or better torque out of the basement with a bit better breathing (.200-up) capability up top. I'm looking for the same wall to wall type torque curve but tring to 'use it all up' by about 6000-6200. So at 370" 4600-7300 should (roughly) correlate to 3900-6100 in a 440, which was right where I was targeting. Any flow numbers onthe heads? Just curious what they do in the mid lifts, they must be killer at ~.400 to make that kind of power up top with such a small and low lift cam
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Re: 360 Street/Strip Bruiser-Dyno results inside
[Re: dizuster]
#1625583
05/28/14 03:06 PM
05/28/14 03:06 PM
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Joined: Feb 2007
Posts: 2,578 sweden
1Fast340
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Quote:
Very impressive numbers...can't wait to see what it does in the car.
Jeez I hope my new MCH CNC Eddy's don't want to turn that much rpm...my cast crank hates me enough as it is...lol
you should be safe aslong as that crank keeps on hating you,start worry about it if the crank start loving you enough to descide to get out of the block to see you.
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Re: 360 Street/Strip Bruiser-Dyno results inside
[Re: Ian]
#1625588
05/29/14 12:44 PM
05/29/14 12:44 PM
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Joined: Feb 2006
Posts: 1,051 The Great White North
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I actually did. I can only say that the flow loss was substantial when tested this way. J.Rob
2009 PHR\EMC Competitor 2010 PHR\EMC Competitor 2011 PHR\EMC Competitor 2012 PHR\EMC Competitor 2013 PHR\EMC Competitor 2014 HotRod/EMC Competitor 2015 HotRod/EMC NoShow 2016 HotRod/EMC 3rd place SPEC Bigblock 2018 HotRod/EMC 7th place G3
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Re: 360 Street/Strip Bruiser-Dyno results inside
[Re: Ian]
#1625591
05/30/14 09:16 AM
05/30/14 09:16 AM
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Joined: Feb 2006
Posts: 1,051 The Great White North
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Closer to -50 cfm through intake OOTB. J.Rob
2009 PHR\EMC Competitor 2010 PHR\EMC Competitor 2011 PHR\EMC Competitor 2012 PHR\EMC Competitor 2013 PHR\EMC Competitor 2014 HotRod/EMC Competitor 2015 HotRod/EMC NoShow 2016 HotRod/EMC 3rd place SPEC Bigblock 2018 HotRod/EMC 7th place G3
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Re: 360 Street/Strip Bruiser-Dyno results inside
[Re: RAMM]
#1625595
06/01/14 07:30 PM
06/01/14 07:30 PM
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Joined: Jan 2003
Posts: 5,894 Florida
Locomotion
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Quote:
Quote:
Raw air numbers really only tell part of the story, creating a charge in the plenum can more than offset "raw" port numbers...particulary when you consider any given intake valve is completely closed roughly 2/3'ds of the time. Not to mention solid fuel volume displaces about ~7.5% of that air in a carb'ed motor. So a raw 300 cf/minute can really only meter ~100 cf within the roughly just over 20 seconds of each minute it gets to do it. And for half of that 20 seconds (on a street cammed motor like this one, more like ~27-28 total in a high RPM race motor) the valve is on it's closing ramp. It's pretty amazing the A/F can get in there (let alone out) as well as it does.
This is exactly why I don't put a lot of stock in intake manifold flow numbers. I have seen 400+cfm heads with sheetmetal TR's lose nothing when flowed on the head and not make any more power than an intake that imposes a severe penalty in flow. Flow just isn't the end all be all--especially when applied to the intake manifold. J.Rob
Going another step from the dual plane that Streetwize suggested, if you weren't so happy with the torque numbers, have you considered a more conservative single plane, like a Holley Strip Dominator or M1 single plane and experiment with 4-hole, tapered and open spacers? I know the original Victor has a bigger plenum than the intakes I mentioned, so I would assume that the SV intake is even bigger.
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