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#1
10-25-2023, 01:32 PM
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Dyno results
Picking the engine up Friday. I'll post the dyno sheet then but it made 542hp and 581tq.
400 bored 4.155 Eagle forged crank 4.350 Billet splayed caps SRP flats Eagle H beam rods Melling 60lb pump Victor intake KRE 85cc d ports ported to 300 9 way billet double roller Holley 850xp Bullet solid flat tappet cam 250/256, 606/607, installed at 104 34deg timing Builder says carb is holding it back from full potential but I sold my Dominator as it was too much on the street for mpg. I'm happy with the results after a few problems with the build that the dyno found. Can't wait to get it on the Firebird and try it on the street. No track testing until next year as our season has finished now.
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69 Firebird 472, KRE 85cc, Victor, 850xp, TH400, TSP 9.5" 4800, 3.90 10 bolt, Viking DA rears, QA1 single fronts, 3558lbs. best to date 10.90 @123 |
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#2
10-25-2023, 01:35 PM
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Sounds good!
What was the HP of the engine in your signature? 
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John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
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#3
10-25-2023, 01:45 PM
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611hp 601tq. Solid roller cam with a 1050 dom but everything else the same as this build.
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69 Firebird 472, KRE 85cc, Victor, 850xp, TH400, TSP 9.5" 4800, 3.90 10 bolt, Viking DA rears, QA1 single fronts, 3558lbs. best to date 10.90 @123 Last edited by 461-69bird; 10-25-2023 at 01:55 PM. |
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#4
10-25-2023, 02:49 PM
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Cool.
Thanks for the info. It'll be interesting to see what it runs when spring comes around.
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John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
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#5
10-25-2023, 03:06 PM
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Glad to hear no damage was done with the low oil pressure issue.
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#6
10-25-2023, 04:48 PM
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Yes Steve, got lucky with that
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69 Firebird 472, KRE 85cc, Victor, 850xp, TH400, TSP 9.5" 4800, 3.90 10 bolt, Viking DA rears, QA1 single fronts, 3558lbs. best to date 10.90 @123 |
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#7
10-25-2023, 05:22 PM
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At what rpm where your peaks showing up at?
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#8
10-25-2023, 07:14 PM
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I think he said torque was 4100 can't remember the hp. I'll have the sheet Friday
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69 Firebird 472, KRE 85cc, Victor, 850xp, TH400, TSP 9.5" 4800, 3.90 10 bolt, Viking DA rears, QA1 single fronts, 3558lbs. best to date 10.90 @123 |
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#9
10-25-2023, 09:35 PM
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Very nice results.
....had an UD cam with the 104 LC just like that in a 472. The 104 LC was set to 100/108 for Street effect. Idle pulses out the tail pipe were impressive. Hmmmm, have a 1970 1050 sitting on the shelf, doing nothing for nobody now.
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12.24/111.6MPH/1.76 60'/28"/3.54:1/SP-TH400/469 R96A/236-244-112LC/1050&TorkerI//3850Lbs//15MPG/89oct Sold 2003: 12.00/112MPH/1.61 60'/26"x3.31:1/10"/469 #48/245-255-110LSA/Q-Jet-Torker/3650Lbs//18MPG 94oct Sold 1994: 11.00/123MPH/1.50 60'/29.5"x4.10:1/10"/469 #48/245-255-110LSA/Dual600s-Wenzler/3250Lbs//94oct |
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#10
10-26-2023, 12:36 PM
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Is an 850 carb really a restriction on a 550 horsepower engine? Hmm.
Headers are 1 3/4 or 1 7/8? |
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#11
10-26-2023, 01:19 PM
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Well he thinks it could make 600 with a bigger carb. Headers are stepped Maddog 13/4 to 17/8
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69 Firebird 472, KRE 85cc, Victor, 850xp, TH400, TSP 9.5" 4800, 3.90 10 bolt, Viking DA rears, QA1 single fronts, 3558lbs. best to date 10.90 @123 |
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#12
10-26-2023, 01:55 PM
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any chance it wants more timing? 34 degrees seems low. compression?
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#13
10-26-2023, 01:56 PM
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Quote:
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#14
10-26-2023, 03:57 PM
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Those heads with my 290b were best at 32 with 10.2 comp.
With the solid roller 34 at 10.75. Now 34 at 10.8 seemed the best He would like to see a 1000 or a dominator but that's not what I'm ever going to run so wasn't much point. Would be fun to borrow one at the track just for a few runs though.
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69 Firebird 472, KRE 85cc, Victor, 850xp, TH400, TSP 9.5" 4800, 3.90 10 bolt, Viking DA rears, QA1 single fronts, 3558lbs. best to date 10.90 @123 |
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#15
10-26-2023, 07:35 PM
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Did they have an air hat on the engine dyno? It would be interesting to see how much air that combination actually used? Also, if no air hat, did they have a vacuum line on it for manifold vacuum?
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| The Following User Says Thank You to mgarblik For This Useful Post: | ||
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#16
10-27-2023, 06:13 AM
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Yes, like menshined above , a vacuum reading take below the Carb at 500 rpm below peak hp will tell you if your Carb is too small.
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#17
10-27-2023, 08:01 AM
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Quote:
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#18
10-27-2023, 10:18 AM
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FWIW my 500" IA motor that dynoed 695 HP made the same with an 850 4150 as a 1050 Dominator on it.
I can tell you dynoing my friends 463 E head motor that made 640 HP with 2" headers we killed 40 hp swapping on my 1 3/4-1 7/8 Hedmans
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
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#19
10-27-2023, 10:59 AM
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Quote:
Stan
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Stan Weiss/World Wide Enterprises Offering Performance Software Since 1987 http://www.magneticlynx.com/carfor/carfor.htm David Vizard & Stan Weiss' IOP / Flow / Induction Optimization - Cam Selection Software http://www.magneticlynx.com/DV Download FREE 14 Trial IOP / Flow Software http://www.magneticlynx.com/DV/Flow_..._Day_Trial.php Pontiac Pump Gas List http://www.magneticlynx.com/carfor/pont_gas.htm Using PMD Block and Heads List http://www.magneticlynx.com/carfor/pont_pmd.htm |
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#20
10-27-2023, 01:07 PM
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Quote:
Also on the carb issue I am running a QF 950 that I discovered is more than I need. Factory jetting was at 86/78. I am down to 82/74 and it is still rich, at least in warm/humid air. Will probably be pretty close when the cooler/drier fall air gets here.
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69 Bird w/1970 400 block(409 cubes), #64 heads, hyd. roller, Q-jet by Jeff E., original interior, ps, pdb, th350, and 3.73 gears. Pump gas, street driven muscle. 3800 lbs. race weight. Best, 11.39 @118, my son's car. 79 T/A w/463, Scat crank, Eagle rods, Icon pistons, Lunati solid roller, 262/270, KRE 325 heads, Northwind intake, QF950 carb, full interior, ps, pdb, th350, and 3.73 gears. Pump gas, 3650 lbs. race weight. 10.68 @ 126 so far... no tuning yet. |
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