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Discussion Starter #1 (Edited)
Hi There

I have a mate building a 540bbc and he is interested in finding out power estimates before it goes on the dyno

Specs

Merlin 540 10.2 Deck height
Scat crank and Rods
Arias nitrous pistons
12:1 Comp
AFR 335CC CNC Machined 119cc Combustion chamber
TRE Tunnel Ram
Twin 1050 Dominator Carbs
Comp Cam 276/285 Duration @50
Lift 748/714
Lobe sep 110
Moroso Dry sump pump 4 stage
Vacuum Pump as well
Jessel Rocker gear
MSD Crank angle sensor
MSD 7 Programmable
Ectracors 2 1/4 primarys with 4" collector
The engine will be running 350 shot of gas im just after a Est Hp figure N/A

Any Info will be greatly appreciated

Cheers
 

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Hi There

I have a mate building a 540bbc and he is interested in finding out power estimates before it goes on the dyno

Specs

Merlin 540 10.2 Deck height
Scat crank and Rods
Arias nitrous pistons
12:1 Comp
AFR 335CC CNC Machined 119cc Combustion chamber
TRE Tunnel Ram
Twin 1050 Dominator Carbs
Comp Cam 276/285 Duration @50
Lift 748/714
Lobe sep 110
Moroso Dry sump pump 4 stage
Vacuum Pump as well
Jessel Rocker gear
MSD Crank angle sensor
MSD 7 Programmable
Ectracors 2 1/4 primarys with 4" collector
The engine will be running 350 shot of gas im just after a Est Hp figure N/A

Any Info will be greatly appreciated

Cheers
850-860 @ ~7000 (just a guess, no DTD) if it's built right. Cam has a little more ex than it needs, (hopefully that's for the nos) so that'll hurt the NA performancea tad. Should run good, though.
 

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I have 540, 13.2:1, same cam, slightly larger heads AFR345 w/cnc chambers, and a single plain with single 1050...816/693. Why would you need dual doms and tunnel ram on that combo?
 

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I have 540, 13.2:1, same cam, slightly larger heads AFR345 w/cnc chambers, and a single plain with single 1050...816/693. Why would you need dual doms and tunnel ram on that combo?
For at least another 50hp. Why not?
 

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a 540,, vac pump,, dry sump,, two dominators,,,, cam isnt too big,, not at all...

if this thing didnt make 900 id take it apart to find out what is wrong,,,

looking at it i said 1000hp,, though its hard to do through std heads,, depends how much work is done to them,,, but 950 all day cam is a lil small though
 

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a 540,, vac pump,, dry sump,, two dominators,,,, cam isnt too big,, not at all...

if this thing didnt make 900 id take it apart to find out what is wrong,,,

looking at it i said 1000hp,, though its hard to do through std heads,, depends how much work is done to them,,, but 950 all day cam is a lil small though
900hp with 12:1 and <.800 lift?........not seeing it......:smt102
 

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i was just going off a .060 over 427 that i built with 12/1 stock 850 carb on a dart manifold,, ported edelbrock/stock replacement heads,, no vac pump it made 840

so this thing is 100 inches bigger
2 dominators
vac pump
dry sump

it better make 900
 

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I have 540, 13.2:1, same cam, slightly larger heads AFR345 w/cnc chambers, and a single plain with single 1050...816/693. Why would you need dual doms and tunnel ram on that combo?
Those look like realistic numbers to me
 

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a 540,, vac pump,, dry sump,, two dominators,,,, cam isnt too big,, not at all...

if this thing didnt make 900 id take it apart to find out what is wrong,,,

looking at it i said 1000hp,, though its hard to do through std heads,, depends how much work is done to them,,, but 950 all day cam is a lil small though
If everything was dead nuts right and a different cam I'd say maybe 900 or a squeek above, but not 1000 with those heads. At least, not out of the box.
 

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i was just going off a .060 over 427 that i built with 12/1 stock 850 carb on a dart manifold,, ported edelbrock/stock replacement heads,, no vac pump it made 840

so this thing is 100 inches bigger
2 dominators
vac pump
dry sump

it better make 900
never seen a mild 427 like that make that kind of hp...
 

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i was just going off a .060 over 427 that i built with 12/1 stock 850 carb on a dart manifold,, ported edelbrock/stock replacement heads,, no vac pump it made 840

so this thing is 100 inches bigger
2 dominators
vac pump
dry sump

it better make 900
? what dyno play school.
 

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i was just going off a .060 over 427 that i built with 12/1 stock 850 carb on a dart manifold,, ported edelbrock/stock replacement heads,, no vac pump it made 840

so this thing is 100 inches bigger
2 dominators
vac pump
dry sump

it better make 900
:smt103
 

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Discussion Starter #18
If everything was dead nuts right and a different cam I'd say maybe 900 or a squeek above, but not 1000 with those heads. At least, not out of the box.
Thanks for the replies, Scott Foxwell what would you suggest For a different cam? We estimated it should make around 850hp+ with this setup. Would like to hear suggestions.

Cheers
 

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Thanks for the replies, Scott Foxwell what would you suggest For a different cam? We estimated it should make around 850hp+ with this setup. Would like to hear suggestions.

Cheers
Probably something closer to an even split duration for NA (based on advertised flow numbers from AFR), but since you're going with the NOs a little more ex doesn't hurt. Need more info.
 
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