HOW MUCH HP AND TQ CAN I EXPECT WITH MY COMBO? - 460 Ford Forum
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post #1 of 8 (permalink) Old 05-02-2007, 10:33 PM Thread Starter
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HOW MUCH HP AND TQ CAN I EXPECT WITH MY COMBO?

Hello, my Drag Car is a Mustang Mach 1 1973, My combo is a 545 cid
Features:
1.- Scat 900 steel crankshaft 4.5
2.- Scat H beam roads 6.7
3.- J&E flap top pistons-C/R 13.9 :1
4.- Edelbrock RPM CJ fully ported 75 cc combustion chambers
5.- Tunel Ram Weiand fully ported and matched with the heads
6.- Two Carburators (I am locking for it? size, tune and brand)
7.- C6 Tranny ( I am locking for Torque convertor, size and stall)
8.- Cam Comp Cams 272/280 @.0500 solid roller.

Is my first Drag Car Race and I would to know How much HP and TQ can I expect with this combo?

MUSTANG FOX DRAG CAR 604 CID
FORD ROADSTER 1927 DRAG CAR 545 CID
MUSTANG 99 SUPERCHARGED STREET CAR
4.6 LTS 12 PSI BOOST
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post #2 of 8 (permalink) Old 05-10-2007, 04:04 PM
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what CFM do the heads flow,thats where all the power is made
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post #3 of 8 (permalink) Old 05-10-2007, 07:03 PM Thread Starter
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HEADS FLOW

My Heads Flow is: INT 365 cfm/ 248 cfm EXH at 700 lift.

MUSTANG FOX DRAG CAR 604 CID
FORD ROADSTER 1927 DRAG CAR 545 CID
MUSTANG 99 SUPERCHARGED STREET CAR
4.6 LTS 12 PSI BOOST
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post #4 of 8 (permalink) Old 05-26-2007, 04:03 PM
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A couple more questions:

Bore and stroke?

Header tube diam?
Mufflers [what type and size?] or open headers?

Weight of car?
Trans converter?
Rear?
Tires?

I will try to compute it with this info!
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post #5 of 8 (permalink) Old 05-26-2007, 10:39 PM Thread Starter
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SPECS

STROKE.- 4.5
BORE.- 4.39
COMPRESION RATIO.- 13.9:1
TRANSMISSION.- Powerglide with transbrake and 5000 stall
REAR.- Ford 9" with Spool and 4.3 gears
WEIGHT CAR.- 2850 lbs
SLICKS.- Goodyear 14x33x15 with Centerline Rims
HEADERS.- Open headers tube 2.25" with colectors 4"

THANKS

MUSTANG FOX DRAG CAR 604 CID
FORD ROADSTER 1927 DRAG CAR 545 CID
MUSTANG 99 SUPERCHARGED STREET CAR
4.6 LTS 12 PSI BOOST
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post #6 of 8 (permalink) Old 05-26-2007, 10:44 PM Thread Starter
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TRANNY

Sorry, First I was thinking to run my car with a C6 transmission but actually I am looking for a Powerglide 2 speeds.
THANKS

MUSTANG FOX DRAG CAR 604 CID
FORD ROADSTER 1927 DRAG CAR 545 CID
MUSTANG 99 SUPERCHARGED STREET CAR
4.6 LTS 12 PSI BOOST
Mauricio Navarro G is offline  
post #7 of 8 (permalink) Old 05-27-2007, 12:45 PM
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That's Fast! Prediction - post time slip when you get one

Mauricio,
Sometimes predictions like this one posted in advance can be valuable -
If you dyno the engine or when you race the car can you post results?

Anyway here is what I computed:
Torq 736 at 4900. wow.
Power 804 at 6400. :twisted:

Shifting at 6800 the computer car ran:
1.56
6.31 at 115.5
9.73 at 145.9 :twisted:

Using a 4500 stall made it .04 slower
Using 2-1/8 headers made it .03 slower and lost 14hp.
(That is pretty detailed though, not sure how much to trust small changes like that!)

See if the engine / car is anywhere close to these numbers.

Will you race it up in the USA ever?
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post #8 of 8 (permalink) Old 05-27-2007, 09:06 PM Thread Starter
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THANKS

Hello, Werbyford, I apreciate a lot your information, the HP and Torque numbers are very good, if I obtain 700 HP and 600 lb Torque I am going to be the happyer man of the world.
When I ride my car in the Dyno IŽll tell you the results, my proyect is almost finish, just looking for a powerglide and a pair of carbs for my tunel ram.
THANKS

MUSTANG FOX DRAG CAR 604 CID
FORD ROADSTER 1927 DRAG CAR 545 CID
MUSTANG 99 SUPERCHARGED STREET CAR
4.6 LTS 12 PSI BOOST
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