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#1 |
Active Member
Join Date: Oct 2006
Location: Ohio
Posts: 1,643
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Dyno Results - 454
For any of you that have been on the fence or wondered about running your motor on a dyno, this was a great experience. We could monitor oil pressure and temp, coolant temp, Air/fuel ratio per cylinder, fuel usage between front and back bowls.
We broke the motor in on the dyno and we watched as the oil temp climbed 240 degrees, to hot to be comfortable, so we shut the motor down to let it cool - not a comfortable moment while breaking in a new camshaft - but something I would have never seen if I broke in the cam in my truck After breakin the oil temps came into line - it can be as simple as a little to much oil in the sump to cause the temps to go up. Dyno pulls & tuning by Platinum Engine and dyno services, Norwich Ohio, machine work by Watson & Ruppel performance, Sarahsville Ohio All results are corrected per sttp standards 3300 = 306.5hp x 487.8TQ 4000 = 387.7hp x 509.1 TQ 4400 = 447.0HP x 533.6 TQ 4700 = 465.9HP x 520.6 TQ 5200 = 484.9 HP x 489.8 TQ 5400 = 467.9 HP x 455.1 TQ MAX = 484.9 HP x 533.6 TQ 454 .040 over bore = 463CI Edelbrock Performer RPM ported and gasket matched to heads 1” phnolic spacer plate 770 Holley SA carb MSD Street Fire HEI Distributor 1.7/8” headers with 3” collectors Comp Cams roller tip rockers Comp Cams 924 springs Comp Cams 10 degree retainers Comp Cams 3/8” Hi Tech pushrods, .080 Wall Comp Cams Guide Plates 2.19 Intake x 1.88 Exhaust valves – sst 781 Heads ported and gasket matched to intake decked & cc’ed to achieve 10.0-1 compression, competition valve job with blended bowls, bronze guides, cut for high lift camshaft, KB FHR Forged pistons with .200 dome = 10.0-1 compression with decked head and block, uses the heavier ring pack Hastings Moly Rings Pistons are floated on pins Stock rods with ARP wave loc bolts Cast Crank – stock turned 10-10, Bearing clearance .0024 Avg. ARP main bolts- 2 bolt main Melling M77 oil pump with heavy spring ARP oil pump studs Lunati 60204 camshaft set up at 105.250 degrees, nitrided for extra hardness .554 x .572 lift & 276 x 284 Advertised Duration Microtrol lifters Grooved lifter bores for better camshaft oiling Rotating assembly is spin balanced to within 1 gram Block was decked, honed with torque plates to .040, & line bored 15W-40 Lubriplate GPO motor oil GM EOS Moroso 7 Qt oil Pan & pickup
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1968 SWB 454 + .040, 490HP x 540 FT pounds of Torque 10-1 Kb Forged pistons, recon rods w/ ARP wave loc bolts 781 heads Ported with 2.19/1.88 SSTvalves Lunati 60204 cam, Micro Trol lifters, Ported Edelbrock Performer Rpm manifold armor coated, Pertronix Triple Strike Ignition Holley 770 Street Avenger carb,Headers armor coated Built by Watson Ruppel Performance in Sarahsville Ohio. Hardshift Tranny Built Turbo 350,TSI 10" 3000 stall 12 Bolt Eaton Posi 4.10 Richmond Gears moser axles ![]() 18.5" x 31" Hoosier Pro Street Radials ![]() ET Classic 5 Wheels - polished Power Steering, Power Brakes,Disc Brakes,Tach & Gauge Dash, Tilt,Factory Air (gone) Custom Paint & Body Work Special thanks to my wife, my son and my money tree ![]() Last edited by 1968SWBBigBlock; 05-27-2008 at 05:50 AM. Reason: added info |
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#2 |
fugedaboutit
![]() Join Date: Mar 2005
Location: Gresham, OR
Posts: 832
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Re: Dyno Results - 454
Thats a nice stout motor! Should throw you back real hard, congrats
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#3 |
Active Member
Join Date: Oct 2006
Location: Ohio
Posts: 1,643
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Re: Dyno Results - 454
Thanks - I had a lot of fun thru this learning curve. My engine builder and I spent many hours discussing parts and changes - Dave was very open to what I had to say but quick to stop me if I was looking at some part he had bad luck with in the past.
For me an engine builder with lots of experience and patience was needed. I like to learn and have input thru the entire process.
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1968 SWB 454 + .040, 490HP x 540 FT pounds of Torque 10-1 Kb Forged pistons, recon rods w/ ARP wave loc bolts 781 heads Ported with 2.19/1.88 SSTvalves Lunati 60204 cam, Micro Trol lifters, Ported Edelbrock Performer Rpm manifold armor coated, Pertronix Triple Strike Ignition Holley 770 Street Avenger carb,Headers armor coated Built by Watson Ruppel Performance in Sarahsville Ohio. Hardshift Tranny Built Turbo 350,TSI 10" 3000 stall 12 Bolt Eaton Posi 4.10 Richmond Gears moser axles ![]() 18.5" x 31" Hoosier Pro Street Radials ![]() ET Classic 5 Wheels - polished Power Steering, Power Brakes,Disc Brakes,Tach & Gauge Dash, Tilt,Factory Air (gone) Custom Paint & Body Work Special thanks to my wife, my son and my money tree ![]() |
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#4 |
Senior Member
![]() Join Date: Apr 2008
Location: Franklinton NC
Posts: 1,309
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Re: Dyno Results - 454
Thats a nice flat torque curve there.Powere where you need it to not all up top
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#5 |
Senior Member
![]() Join Date: Aug 2004
Location: Centennial, CO
Posts: 2,957
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Re: Dyno Results - 454
Nice numbers. I put mine on the chassis dyno a while back, it's cool to actually have some proven numbers. You gotta love that flat BBC torque curve.
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ClusterTruck: 68 C10 Bought in 89, wrecked in 03. Slow low $ rebuild started '17. 6.0 & TKO http://67-72chevytrucks.com/vboard/s...d.php?t=788602 93 K1500 Short Step, 350, NV4500, EBL flash ECU. Vortec heads & roller cam someday... 05 Jeep Wrangler Unlimited. 3” lift & 6-speed 02 E320 the insurance total “free car” 13 Tahoe LTZ |
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#6 |
Registered User
Join Date: Apr 2004
Location: Las Vegas, NV
Posts: 2,188
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Re: Dyno Results - 454
Nice man! I think my numbers would look very similar based on your build sheet, + a bit for the extra cubes. Im sure you're happy with it!
I've thought and thought and thought about dynoing it, but honestly, I really cant afford it for a while and the thing is haunting me. I wont be able to start it until I come back to town a month or two from now anyway though, and maybe it will be different. I just dont want to go back through the hastle of un bolting, picking, and rebolting it all back together. Why was your oil temp so high?
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RIP EastSideLowLife '72 C20 SWB convert. 5 lug, LS1/4l60e |
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#7 |
Active Member
Join Date: Oct 2006
Location: Ohio
Posts: 1,643
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Re: Dyno Results - 454
We are unsure why the oil temps climbed during breakin.
He said it could be as little to much oil in the oil pan, the crank starts whipping up the oil in the pan and creates the additional heat I changed the filter when we swapped springs, I only filled the filter up 1/2 way to shed some oil and it seemed to work, we never saw the high oil temp again. When I built the motor I choose not to install a windage tray, from what I read if you are trying to keep a flat tappit cam alive you want as much oil flying around as you can, "to much oil control on the street can be a bad thing on a street motor" David Reher - Reher-Morrison racing engines
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1968 SWB 454 + .040, 490HP x 540 FT pounds of Torque 10-1 Kb Forged pistons, recon rods w/ ARP wave loc bolts 781 heads Ported with 2.19/1.88 SSTvalves Lunati 60204 cam, Micro Trol lifters, Ported Edelbrock Performer Rpm manifold armor coated, Pertronix Triple Strike Ignition Holley 770 Street Avenger carb,Headers armor coated Built by Watson Ruppel Performance in Sarahsville Ohio. Hardshift Tranny Built Turbo 350,TSI 10" 3000 stall 12 Bolt Eaton Posi 4.10 Richmond Gears moser axles ![]() 18.5" x 31" Hoosier Pro Street Radials ![]() ET Classic 5 Wheels - polished Power Steering, Power Brakes,Disc Brakes,Tach & Gauge Dash, Tilt,Factory Air (gone) Custom Paint & Body Work Special thanks to my wife, my son and my money tree ![]() Last edited by 1968SWBBigBlock; 05-28-2008 at 05:18 AM. Reason: spell correction |
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