HP vs TQ question

[Dwight]

What would it take to move it to 6000 rpm?
Here is what I have

weight 2315 no gas 17 gal fuel cell 185 lb driver
8.8 '89 Mustang rear end with 3:55 gears and BFG G-Force tires ( 25.25" tall)
4 link with adjustable coil overs
54.5% rear weight and 46.3% front
TKO 600 with 2.87 1.89 1.28 1.0 .64 gears
10 1/2" McLeod clutch, 50 oz billel steel flywheel
96 5.0 truck block
Eagle forged 3.47" crank, SIR 540CB forged rods, SRP forged pistons #144995
354 cid 10.67 CR
Romac aluminum 50 oz damper

all rotating assembly balanced by local shop

Comp cam XE274HR-12
Brand: COMP Cams
Product Line: COMP Cams Xtreme Energy Camshafts
Part Type: Camshafts
Cam Style: Hydraulic roller tappet
Basic Operating RPM Range: 2,200-6,200
Intake Duration at 050 inch Lift: 224
Exhaust Duration at 050 inch Lift: 232
Duration at 050 inch Lift: 224 int./232 exh.
Advertised Intake Duration: 274
Advertised Exhaust Duration: 282
Advertised Duration: 274 int./282 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.555 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.565 in.
Valve Lift with Factory Rocker Arm Ratio: 0.555 int./0.565 exh. lift
Lobe Separation (degrees): 112
Intake Valve Lash: 0.000 in.
Exhaust Valve Lash: 0.000 in.
Computer Controlled Compatible: Yes
Grind Number: FW XE274HR-12
1.7 roller rockers
Pro Com aluminum heads: 190cc runners - 60cc combustion camber - raised exh port .25"
int. 2.02" & 1.6" exh valves -- heads will flow approx. 270cfm intake and 200 cfm exh @600 lift

36 lb injectors and a Granatelli 90 mm mass air meter

Mallery multi spark ignition box and a 89 Mustang computer A9L with a
Custom SCT chip to make it all work together. Car dyno'ed with chip.

Melling HV oil pump 65 cold idle & 30 hot psi
Holley SysMax II upper and lower intake
73 mm BBK throttle body
stock 89 Mustang distributor
8.5 mm MSD wires
7 qt Cannon oil pan
3/8" fuel line, stock 89 Mustang fuel rail, holley fuel pump 255 lph #HLL-512-105, adjustable pressure regulator set at 38.5 lb.

March aluminum pulleys, under drive on crank and water pump only

1 5/8" equal length header 40" long dumping into 3 1/2" side pipes

I would like to move the tq & HP up to the 2500-6200 rpm range. I also would like the tq & hp to be close to the same. 375 / 375 rear wheel would be nice. What do you guys think I need to change?
If there is any more info you need just ask. Thanks for the help.

Dwight

[dynoroom]

Originally Posted by Dwight

What would it take to move it to 6000 rpm?

Dwight

More torque.... LOL...
Sorry.
400 lb/ft would be about 450 hp & 450 lb/ft would be close to 515.
The real question is how do you get that torque from the 350 you have now?
There's no magic wand.

[Power Surge]

Something to keep in mind during this discussion..... Torque is the actual force pushing down on the piston, HP is just a calculated number. Improve your torque, and you improve your power. The key is making the torque you need WHERE you need it.

[Dwight]

OK Sal
I need the peak torque at 5800 rpm. How do I get it there? Cam? Which one?
Dwight

[Power Surge]

Originally Posted by Dwight

OK Sal
I need the peak torque at 5800 rpm. How do I get it there? Cam? Which one?
Dwight

Bigger cubes, or a power adder .

[Anthony]

Originally Posted by dynoroom

More torque.... LOL...
Sorry.
400 lb/ft would be about 450 hp & 450 lb/ft would be close to 515.
The real question is how do you get that torque from the 350 you have now?
There's no magic wand.

Originally Posted by Dwight

OK Sal
I need the peak torque at 5800 rpm. How do I get it there? Cam? Which one?
Dwight

The way I see it, any naturally aspirated engine can only take in so much air/fuel per revolution, which directly impacts on the torque generated. If your engine is generating 1.4 ft-lbs / ci (measured at flywheel), I would say that the engine is operating pretty efficiently. Therefore, max torque is limited by engine displacement. The only way to increase it significantly beyond this is with a power adder.

Horsepower is work/time, or the amount of energy delivered over time. As your car accelerates, it accumulates kinetic energy, 1/2mv*2 , derived from the horsepower delivered.

You can make any engine deliver max torque @ 5800 rpm's with the right cam, but if your intake, heads, exhaust are not up to snuff, then even though your max torque may be at 5800 rpm's, it may be a low overall value.

Your question should be - How do I make my engine make a lot of torque, with peak torque at 5800 rpms?

My suggestion would be to go to a local race track, find out the engine builders who build the winning engines, and take your car to them for suggestions.