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#1
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Dynoed my 389, very pleased.
Nothing spectacular, but a very nice street motor that will be a lot of fun to drive. 1965 389 with 76 heads built and ported by SD Performance. Crossovers filled, threaded rocker studs, hardened seats installed average 72.5 cc on the chamber, intake flow 230 cfm. Lunati Voodoo 702 HFT cam 262/268 duration @.050 and .468 / .489 lift degreed and installed at 106 deg with 1.5 Harland Sharp rockers. Bored .030 over with Ross custom pistons, 11.8 cc dish for 9.5 compression, Scat rods, Butler Melling 60 psi oil pump. Stock Armasteel crank, turned 10/10. Stock intake lightly cleaned up inside, with a Carter AFB off of a 65 GTO. It made 399 hp, and 456 ft. lbs torque. It will be mated to a Extreme Automatics 200 4R with a 3:73 rear end. One run did show 400 hp, and another showed 460 tq, but i for some reason didn't get those sheets.
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"I know just enough to keep me here, but not enough to get me out" |
The Following 4 Users Say Thank You to Cardo For This Useful Post: | ||
#2
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The last 2.
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"I know just enough to keep me here, but not enough to get me out" |
#3
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Very nice!
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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 |
#4
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Nice...congrats!
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1970 GTO (Granada Gold) - 400 / TH400 |
#5
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Nice hp numbers and a really wide Torque cradle numbers!
With those gears the car should move out with great athourity! Congrats!
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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! |
#6
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I’d be proud too, super nice 389!
Going to be a stealth fighter on the street, 400 hp is a bunch.
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1964 Tempest Coupe LS3/4L70E/3.42 1964 Le Mans Convertible 421 HO/TH350/2.56 2002 WS6 Convertible LS1/4L60E/3.23 |
#7
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NICE!!!!
Are those 76 heads open or closed chambered? Those Voo Doo cams sure are becoming popular... Last edited by 389; 12-06-2019 at 11:01 AM. |
#8
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Surprisingly strong for a mild combo I like it. Cam is 219/227 @.050
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#9
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The cast number 76 he is running is a closed chamber unless Dave who did the porting opened them up?
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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! |
#10
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Cardo, well done!
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“It takes considerable knowledge just to realize the extent of your own ignorance.” Dr. Thomas Sowell |
#11
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Impressive
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#12
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Thanks all. Stealth is what i was going for. Chambers not opened up. Dropped compression with the dished piston. Should be a fun snappy street motor. With that cam, she's all done about 5200 and the trans is set to shift at 4900 for WOT, so it all ended up on the money. Running a 2500-2700 stall converter with lock up. She'll cruise at 70 with the A/C on quite nicely.
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"I know just enough to keep me here, but not enough to get me out" |
#13
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Sweet setup and nice torque curve. Those voodoo cams rock.
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#14
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What would be expected HP given the engine was spinning the water pump, alternator, power steering pump, flex fan, and other as installed street loads (not to the wheels, just engine dyno). Asking to try and put into perspective the engine performance.
Looks like a fantastic engine build. |
#15
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A 389 is what started my fascination with Pontiac Power
Nice build !!
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If your not at the table you're on the menu A man who falls for everything stands for nothing. |
#16
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Makes a small difference.
Last engine I dyno'd we spun the water pump and alternator and used the water pump to cool the engine. The only real downfall to that is you can't cool the engine/spin the pump between pulls while it's shut off. It's really up to the dyno operator and what is easiest to hook up. But these reasons (and more) are why you see such a big spread between flywheel HP and chassis dyno HP at the wheels. |
#17
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Nice, 400hp, and 450tq. all with a mild manner package. that should be a fun ride.
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Jim Moshier 1971 Grand Prix 462ci SD Performance 6x heads 1962 Catalina 389 1968 Firebird 400-455 I haven't decided "If we ever forget that we're one nation under GOD, then we will be a nation gone under." - Ronald Reagan |
#18
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Sweet!
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“Nothing in the world can take the place of persistence. Talent will not; nothing is more common than unsuccessful men with talent. Genius will not; unrewarded genius is almost a proverb. Education will not; the world is full of educated derelicts. Persistence and determination alone are omnipotent. The slogan Press On! has solved and always will solve the problems of the human race.” ― Calvin Coolidge |
#19
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Very nice!
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#20
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Impressive!
imho, your 389 build is quite the value adder for any factory built '64-66 389 4bbl car.
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Buzzards gotta eat... same as worms. |
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