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#1
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what will my old worn out eheaded engine make NA
Have a date set to dyno on april 2.
Changes Ports are .220 wider pretty much all the way slight increase in valve size to 2.275 from 2.25 intake valve switched to ti intake swap from a real nice victor to an even nicer massaged bop. Much larger maybe .4 to .5 of a point more compression belt drive The rest is the same as last year what say you? BTW a note to johnta1 and Stan....please try and think through your responses before you post. I know its hard and you really want me to slow down or somehow fail. But to keep this thread clean understand in advance that 1300,1200,1100 and likely 1050hp are not likely lifting the valve .780 with a bracket set up. Additionally it will be tempting to say 850, but that will only make you look bad. If you truly are interested and have additional questions I will respectfully answer them. If not flame away.
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EHTTFMF! Being dead, it is not hard on you. You don't even know you're dead. It is hard on everyone else that is not dead. BEING STUPID WORKS THE SAME WAY! The rest of us suffer. |
#2
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Same dyno as last yr? Last yrs dyno # and peak rpm? Track reflected Wht hp number? I already have a guess
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1969 carousel red firebird 455, richmond 5 speed 1964 540 gto 1971 lemans sport convertible 1972 Maverick under slow construction |
#3
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Old and worn out?? What did you do take it to Dragweek! LOL
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#4
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1100+ using Johnta1 and Stan's methods
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#5
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My guess is 1025 HP.
EHTTFMF!
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First Pontiac powered street car in the 7's 7.940@170.84. 3460#s |
#6
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WOW, mike your camshaft in your engine is way BIGGER then my BRACKET RACE cam! Another high dollar engine.
GTO George |
#7
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Quote:
through a reliable source im told tony's dyno and scorpion racings dyno are VERY close. when i dynoed at scorpion last year it made 968 on the first hit with some room in the tune up but not 1000hp worth of room. We felt that it would stop at 988-995. and the car slide rules at 1000hp in 2000ft air. using other calculators it shows 1038 which is pure nonsense. I'm pretty comfortable saying it was VERY close to 1000 if not 1k. That all said there are many that claim the BES dyno 40 tight. who knows. I'm going there for the expertise on the bes staff and not the highest number printed on paper possible. If I were I would seek out a known loose dyno.
__________________
EHTTFMF! Being dead, it is not hard on you. You don't even know you're dead. It is hard on everyone else that is not dead. BEING STUPID WORKS THE SAME WAY! The rest of us suffer. |
#8
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Quote:
FYI George that big thingy with 2 dominators on it sitting on top of your engine is an AIR COMPRESSOR. That is the thingy that makes your HP, which is not much if at all more than i made last year. But thanks for your useful comment anyway.
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EHTTFMF! Being dead, it is not hard on you. You don't even know you're dead. It is hard on everyone else that is not dead. BEING STUPID WORKS THE SAME WAY! The rest of us suffer. |
#9
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I wish you great success on your rebuild. 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 |
#10
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Since you do not post with your real name I do not know if you have my software or not. I would guess NOT. So how would you know what my method is? Help me out here and tell me what VE at what RPM should I use? Or what should I use for the mass air flow at what inlet temperature and barometric pressure? Thanks for the needed input data.
Stan
__________________
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 |
#11
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thank you hopefully its not a turd
__________________
EHTTFMF! Being dead, it is not hard on you. You don't even know you're dead. It is hard on everyone else that is not dead. BEING STUPID WORKS THE SAME WAY! The rest of us suffer. |
#12
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Quote:
That being said, what ever the number is that Tony's Dyno prints, I would say is a good number (in the dyno racing game). I will say 1064 HP. Tom Vaught ps Roots style Superchargers are "Displacement" devices. They displace a given volume per revolution. So they are basically a "Governor" for airflow into the engine. You run a supercharger of a given displacement per revolution at a given speed and depending on the density of the outside air, you get a given mass flow (horsepower). As long as George never changes the blower rpm, the mass flow will stay in a given range. So the reported Boost Number means little vs the HP output. Pressure Ratio (Boost) will change vs the engine displacement the supercharger is attached to but the mass flow into the engine sets the HP potential.
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. Last edited by Tom Vaught; 03-30-2014 at 11:08 AM. |
#13
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1000-1050 hp should be reasonable. It's hard to say what it will make without more details on the intake areas. The bigger intake valve should help when saddled with the .780" lift cam. Good luck man!
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#14
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1018-1021
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John Marcella Marcella Manifolds Inc. john@marcellamanifolds.net ph. 248-259-6696 |
#15
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I'm guessing 1030 @ 8100 rpm that intake is going to move it up at least that much.
__________________
1969 carousel red firebird 455, richmond 5 speed 1964 540 gto 1971 lemans sport convertible 1972 Maverick under slow construction |
#16
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I've got a $100 says George takes that extra lung off his car and puts on a single four barrel on with a Victor, Mike would skull drag him down the track!
Just sayn
__________________
First Pontiac powered street car in the 7's 7.940@170.84. 3460#s |
#17
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Quote:
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#18
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Other posts indicate you may be trying to make sure to exceed 1000... got a feelin you'll cover that... for now I think you stay under 1030. This dyno session steers you to what changes are needed to better KK's ol' 499 track power. More interesting to me will be how it reacts to new intake... and carries power.
BW's wag method says 1015 +/- 1.5% corrected if the dyno isnt on top of a mountain in the middle of a thunderstorm. .780 is net lift?? You bein stingy or Scott provin his stuff? I like the idea. |
#19
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1051
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65 Lemans Street Car - 521, T400, 3.70 9". 10.13 @ 135. 3770 lbs. Drag Week ‘14, ‘15, ‘17 63 Lemans Race Car- 8.81 @ 151, 5.60 @ 123(SOLD) 67 Bonneville ragtop 74 Firebird - 455, e heads, TK0600 in process |
#20
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Good luck Mike, as long as you're happy its all good!
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