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#1
02-22-2011, 01:31 AM
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Dynoed my 461. Thanks to PPR, KRE, Harry K
Finally got some numbers. 67 .060 over 400 block, PPR forged 4.21 rotating assemblly. Out of the box KRE High Ports, KRE portmatched North Wind Intake. Comp cam roller to KRE specs.
Tryed 2 carbs, HP1000 by Shaker455 and out of the box 1050 Dominator. Th350, TCI 10" converter, 4.10 gears. Harry K took time to tune it. All runs made on 91 octane pump gas. Tryed race gas and no difference. Rev limiter was set at 6400 rpm. There is more in it. We will get 500hp to the wheels on pump gas but for now I am happy with it. This combo has better driveability compare to my old e-headed motor. |
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#2
02-22-2011, 07:49 AM
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Sweet Motor SergeF. Have fun with that motor in your car.
__________________
Conrad 79 Trans AM 406 #12 heads Torker II intake Crower 60210 750 holley vac. sec. T400 3500 Stall 3:73:1 rear.  ECMTTFMFers. IHTTFMFers.
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#3
02-22-2011, 09:27 AM
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dyno
Did the 1050 dominator make a difference on your combo. It sure woke up my 467 pump gas combo.
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#4
02-22-2011, 10:25 AM
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Sergf, My e-headed motor put out about the same HP as yours but with a Victor intake. When I replaced the Victor with a NorthWind, As you have, I lost 15 HP but gained about 12 lbs. torque in the mid range. On the street the NorthWind drives better but on the track the Victor will run about 1 1/2tenths faster. Both Manifoldes were port matched to the heads. I have a chassis dyno and trust me when I say that there are very few street cars that push 470 HP and higher. Nice motor. What are the cam specs?
Steve |
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#5
02-22-2011, 11:38 AM
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Great result......
Nice selection of parts, Serge
 . Which car is it going into ? A bunch of the old Pontiac Drag Days crowd is going to a Fontana track rental on March 4. You & Harry should bring it out and run it  .
__________________
Les Iden ---------------------------- '65 Buick Sport Wagon Custom, 340, T350, 3:23 '66 GTO Post/468, 700R4, 3.31 (Mike's as of 9-16) '68 Grand Prix/455, dual AFBs, T400, 2:93 posi (sold) '72 TA tribute/461, T400, 3.08, (Russ's as of 9-16) '97 Mitsubishi Eclipse Spyder Turbo, Konis, 5 speed '09 Torrent GXP, nav, Sun & Sound pkg., Bilsteins |
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#6
02-22-2011, 06:59 PM
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Whatever car that motor goes in , it will be a rippin' mother.....
and a BLAST to drive !
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69 Grand Prix 428 H.O. loaded "J" 11.51 @ 116 |
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#7
02-22-2011, 07:49 PM
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Quote:
__________________
Carburetor building & modification services Servicing the Pontiac community over 25 years Last edited by shaker455; 02-22-2011 at 08:24 PM. |
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#8
02-22-2011, 08:26 PM
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Just curious, cam specs?
__________________
Low performance vehicles are for low performance minds. 
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#9
02-22-2011, 08:33 PM
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Very Respectable, thats about 640-650hp at the flex plate and 610-620tq should be a blast to drive!
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D.S.R.E. Your NW Pontiac Street/Strip Engine Builder, Specializing in Cylinder Head,Intake Manifold,and Exhaust Manifold Porting services and Building the Most Efficient stock rebuilds to Hi HP Pump Gas and Race Combinations for Pontiac,Buicks,Olds,FE Fords,385 Series and HP Gen 3 and 4 LS engines! 2006 silvy Z71 4X4,383 LS 600+hp NA Shared Toy-66 Lemans 470cid by me 537hp 580tq-manifolds, 570hp 590tq-2"headers,custom cam,rpm intake, mild e-heads, Looks stock ;-} |
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#10
02-22-2011, 09:31 PM
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What did those high ports flow? Seems like they should pull to or peak at 64 or 65.
__________________
  Nothing is impossible if you break it down into possibilities. It's all a matter of "Want to". |
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#11
02-22-2011, 11:03 PM
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Dyno results with a dominator are in blue graph. Engine is in 72 Ventura. Cam is 260 270 at .050 and .609 lift with 1.5 rockers. Thanks.
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#12
02-23-2011, 06:32 AM
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I just built & tuned one of my Dominators on a customers combo that is simmilar to Serge's combo:
http://forums.maxperformanceinc.com/...d.php?t=658767 Maybe he'll run it on a chasis dyno and post results as well. Looking at the dyno graph at the dip in power makes me wonder what adapter was used to run a 4150 on a 4500 Dominator intake?
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Carburetor building & modification services Servicing the Pontiac community over 25 years |
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#13
02-23-2011, 10:17 PM
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Jeff,
no adapters. I have both version of Northwind intakes and both port matched by KRE to my heads. |
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#14
02-25-2011, 11:05 PM
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congrats again
i gotta tell this:
Serge's all efforts got paid off,hes got a bad ass Ca. 91 octane pump gas combo now with carefully selected parts & work that has been put together. he always amazes me with how many combos he has tested on my dyno and seeking for more like all.
__________________
 someone who thinks logically is a nice contrast to the real world.http://www.youtube.com/watch?v=3FfKVVZW1-Y |
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#15
02-26-2011, 02:16 PM
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Looking at your dyno sheet, it looks like you were running it pretty lean. If you can get that AFR to around 13.0 12.9 I bet it would make more. Looks good though. Have fun
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#16
02-27-2011, 11:50 AM
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Quote:
But I assume Harry K tuned both as stated in Serg's first post. From my own dyno tuning sessions I've seen cases when the combo likes a slightly leaner A/F than the standard 12.5
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Carburetor building & modification services Servicing the Pontiac community over 25 years |
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#17
02-27-2011, 06:16 PM
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Air fuel ratio is fine. 4150 850 carb is barelly over 3 years old. 3 dyno sessions and 1 track day on it. Rest of the time it was sitting on a bench. Yes, it made a little more power compare to my old HP950 but that wasn't why I bought that carb. Sure, if I plug a rear power valve on hp950 it might be very close. Plug on the left is colder. It has about 12 pulls and 40 miles of street driving with a 1050 carb. Plug on the right is from my old motor with 850 carb. Needed a gas mask to drive around. I went back to hp950 carb on my old combo.
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#18
02-27-2011, 07:12 PM
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Quote:
__________________
462", 400 block w/displayed caps, mech flat tappet lunati, 11-1 compression, lightly ported #13 heads, e-85, vortech z-trim. 781rwhp@6300rpm on 15.5psi.....blow thru carbs sort of work. csucarbs.com |
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#19
03-02-2011, 06:01 PM
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Tuning by the look of your plugs is not really the way to go. The AFR on the dyno is more important. If not when you are at the track tune to the best et. You shouldn't have a rear power valve for a drag car. When you leave the line the fuel pulls away from the valve causing a lean condition on leave. Just my 2 cents...Good Luck
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#20
03-02-2011, 09:51 PM
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[quote=Todd1035;4253703]Tuning by the look of your plugs is not really the way to go.
X2 correct -but thats not what he did ,those pics are not very clear pixels & which doesnt show all. The AFR on the dyno is more important. oh yeah , but there are few here that don't believe in that  If not when you are at the track tune to the best et. X2 You shouldn't have a rear power valve for a drag car. hes car is driven to track and in the staging lanes as well.
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someone who thinks logically is a nice contrast to the real world.http://www.youtube.com/watch?v=3FfKVVZW1-Y |
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