4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

BEST UPGRADES FOR MAXIMUM HP GAIN

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Old 07-22-2009, 09:09 PM
  #41  
2000AZ5.0GT
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BUY BLOWER

/THREAD

there ya go
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Old 07-23-2009, 12:22 AM
  #42  
teej281
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No added power but butt dyno shows millions of HP with gears. And the butt dyno and track numbers are where its at in my opinion. Gotta be able to use what power you have effectively. Buy gears and your car will put the power you got to the ground a whole lot more effectively than with the stock gears. Just like with a supercharger...if you have too low of gears(higher numerically), they you will just spin and not use your power effectively. So you use lower gears to prevent some spin. So buy yourself some 3.73's or 4.10's for your car to use the power better and call it a day. Your car will feel like a different monster when its done. My 4.10's are going in tomorrow...and i cant freakin' wait!!!
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Old 07-23-2009, 01:05 AM
  #43  
Fobra
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Originally Posted by Andy13186
why not? you could just tell LS owners u put the best part of their car in your car (except vettes those are nice) and made a superior frankencar

but yea it is kind of ... traitorous i suppose

still id rather have a 1999-2004 mustang with a ls1 than a 1998-2002 camaro prob

my guess is he doesnt like to lose to other mustangs!
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Old 07-23-2009, 01:10 AM
  #44  
Mustang3GT07
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Originally Posted by Andy13186
why not? you could just tell LS owners u put the best part of their car in your car (except vettes those are nice) and made a superior frankencar

but yea it is kind of ... traitorous i suppose

still id rather have a 1999-2004 mustang with a ls1 than a 1998-2002 camaro prob
IDK I just think the ls1 should stay in the f-bodies.

Originally Posted by Fobra
my guess is he doesnt like to lose to other mustangs!
I haven't been able to pair up with another mustang at the track yet.

Fobra what kinda car are you driving?
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Old 07-23-2009, 04:45 AM
  #45  
jivepepper
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This is a rough list for MAX HP lol.

Turbo set up
Logan intake
TFS heads ported and upgraded valve train
Custom ground cams
Accufab single blade oval Throttle body for cobra
Built tranny
Built rear
Tuning/Fuel, and other support mods
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Old 07-31-2009, 07:21 PM
  #46  
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if i was you i noticed a little from the stock to a 75mm tb and upgraded plenum but not much.
Cams new springs and Gears would add a nice amount
But if you really want some power wait a few months and go with a Blower
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Old 04-15-2020, 11:50 AM
  #47  
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Originally Posted by disposablehero27
well you can always call when you order, theh bigger the better. i haven't dyno'd mine, but it will rip through the rpm's you'll notice, helps with low end torque alot. plenum supposed to give you 20 give or take. a bit more for the TB. its an easy install, depending. i got a single blade accufab from rpmoutlet and had to cut the intake b/c it was built for twin blades. has an awesome sound, a good little whistle when you press the gas. they will have whatever sizes for whever year and size motor you have. the more air your car gets, the better, hince turbo and supercharger.
hope it gives u 20hp but even BBK75mm plenum and tb in one only gives 12 to 15 hp so where people are saying 20 for just the plenum May be wrong? Idk I’m getting one soon but just letting u know the specs? Anything that gives u at 10hp is a good part to gain with, pulleys, lighter drive shaft, different heads or porting stock heads is key as well as a bigger intake, fuel injectors and fuel pump. But it’s gonna drink more gas too? Downside the new stangs are pushing out 460hp with 20 mpg so?
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Old 04-15-2020, 11:53 AM
  #48  
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Originally Posted by disposablehero27
well you can always call when you order, theh bigger the better. i haven't dyno'd mine, but it will rip through the rpm's you'll notice, helps with low end torque alot. plenum supposed to give you 20 give or take. a bit more for the TB. its an easy install, depending. i got a single blade accufab from rpmoutlet and had to cut the intake b/c it was built for twin blades. has an awesome sound, a good little whistle when you press the gas. they will have whatever sizes for whever year and size motor you have. the more air your car gets, the better, hince turbo and supercharger.
hope it gives u 20hp but even BBK75mm plenum and tb in one only gives 12 to 15 hp so where people are saying 20 for just the plenum May be wrong? Idk I’m getting one soon but just letting u know the specs? Anything that gives u at Least 10hp is a good part to gain with, pulleys, lighter drive shaft, different heads or porting stock heads is key as well as a bigger intake, fuel injectors and fuel pump. But it’s gonna drink more gas too? Downside the new stangs are pushing out 460hp with 20 mpg so?
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Old 04-15-2020, 05:43 PM
  #49  
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Originally Posted by Steve Parlier
hope it gives u 20hp but even BBK75mm plenum and tb in one only gives 12 to 15 hp so where people are saying 20 for just the plenum May be wrong? Idk I’m getting one soon but just letting u know the specs? Anything that gives u at 10hp is a good part to gain with, pulleys, lighter drive shaft, different heads or porting stock heads is key as well as a bigger intake, fuel injectors and fuel pump. But it’s gonna drink more gas too? Downside the new stangs are pushing out 460hp with 20 mpg so?
this is an 11yr old thread, and take petty bolt on power gains with a grain of salt
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