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Old Jul 31, 2009 | 05:30 PM
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Default made 400hp..

just had the car tuned it made 400 at 6300rpm 360ft@5200 things done so far h/c/ LT and an LS6 intake.. is there any where i can improve that will net a noticable difference......maybe rocker arms port the heads a bit i would like to see 450 to the wheels, thanks for any input
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Old Jul 31, 2009 | 06:12 PM
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Spray it
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Old Jul 31, 2009 | 06:13 PM
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What heads?What cam?
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Old Jul 31, 2009 | 10:53 PM
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5.3L heads 232 234 i wanted to stay away from the bottle
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Old Aug 1, 2009 | 09:45 AM
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Originally Posted by stangslayer98
just had the car tuned it made 400 at 6300rpm 360ft@5200 things done so far h/c/ LT and an LS6 intake.. is there any where i can improve that will net a noticable difference......maybe rocker arms port the heads a bit i would like to see 450 to the wheels, thanks for any input
Auto or stick? If thats an auto your doing VERY well for the mods noted.
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Old Aug 1, 2009 | 01:57 PM
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Originally Posted by stangslayer98
just had the car tuned it made 400 at 6300rpm 360ft@5200 things done so far h/c/ LT and an LS6 intake.. is there any where i can improve that will net a noticable difference......maybe rocker arms port the heads a bit i would like to see 450 to the wheels, thanks for any input
Almost exactly like mine, wanna race?
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Old Aug 1, 2009 | 02:07 PM
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250 shot and close your eyes
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Old Aug 1, 2009 | 11:18 PM
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could i get 50whp with aftermarket catback bigger TB and porting the heads a bit......the car is a manual
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Old Aug 1, 2009 | 11:49 PM
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Originally Posted by stangslayer98
could i get 50whp with aftermarket catback bigger TB and porting the heads a bit......the car is a manual
Doubtful. I make mid to upper 400 RW #'s, it takes more than a few odds and ends to pick up 50 RWHP. What is done to your heads? Any flow sheets? Or are they basically stock 5.3L heads?

IMO, you're going to need every last little bolt on, a cut out, a set of heads that flow around 300cfm - yet retain good mid lift flow, and a cam that matches.

Remember - peak #'s aren't everything. Power under the curve is where it's at.
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Old Aug 2, 2009 | 01:21 AM
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the heads are the 2.5 prc's i was thinking maybe they can be worked a bit, along with nice cool weather and a prayer illl get the 450 mark
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Old Aug 2, 2009 | 09:42 AM
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Originally Posted by troopercar
Almost exactly like mine, wanna race?
Not many cars with your mods as quick as yours Troopercar....looking for victims?
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Old Aug 2, 2009 | 11:59 PM
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Nice numbers. Are you getting all of what you could have so far to the ground with the suspension you currently have?
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Old Aug 3, 2009 | 06:37 AM
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Originally Posted by TLewis4095
Not many cars with your mods as quick as yours Troopercar....looking for victims?
always
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Old Aug 3, 2009 | 12:55 PM
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Look into a fast intake and a cutout those 2 alone should boost your hp #'s decently
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Old Aug 3, 2009 | 01:23 PM
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Originally Posted by stangslayer98
5.3L heads 232 234 i wanted to stay away from the bottle
Nice what LSA? got any sound clips/vids?
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Old Aug 3, 2009 | 02:03 PM
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I made 400 HP with a 6 speed on stock 241s with a 232/234 cam....
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Old Aug 3, 2009 | 05:48 PM
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rich was that on a mustang dyno? how high did you spin the motor..i might need to get a better intake along with a TB and a better catback or cutout like crimini said.....not sure what LSA the cam has......doc probably not i have no suspension mods aside from lowering springs

Last edited by stangslayer98; Aug 3, 2009 at 06:36 PM.
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Old Aug 3, 2009 | 07:12 PM
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Supercharger. You will not regret it.
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Old Aug 4, 2009 | 10:15 AM
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Get the power to the ground. A lot of potential untapped at the level of power your car already has with the basic stock suspension.
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Old Aug 11, 2009 | 07:12 PM
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As mentioned:

#1 - a complete power curve rather than the peak is what you should be looking at.

#2 - if you can't put down the power you have now, why worry about more? I'd take a look at suspension upgrades first.

Derek
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