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2011+ Mustang GT Tech Forum

2011+ Talk | 2011+ GT | 2011+ V6 | 2005-2010 Talk | 2005-2010 GT | 2005-2010 V6 | Shelby GT500 | Mustang Tech 
 

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Unread 08-20-2013   #1 (permalink)
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Default Power mods once again.

Hi,

Once a gain I need the help of my Mustang fanatics.

I'm looking to make a little more power with my engine without going with a turbo or supercharger. Yes I want to stay N/A.

What should I look for in the next part to take my car up a little bit in hp or torque?

You can check my signature on what I have.

I've been thinking to change my heads for boss heads but it's expensive and not an easy job to do. Maybe supporting mods to better put the power to the ground? Right now I don't have that big of a problem with traction.

What I should look for... Let me know what your suggestions are.
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Unread 08-20-2013   #2 (permalink)
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I would say maybe a better tune and gears if you stay NA i would say 3.73s. Sorry i jumped on the supercharger wagon and got my bump lol

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Unread 08-20-2013   #3 (permalink)
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How much do those 20" wheels weigh? Losing some rotating mass will help your power numbers. Heavy wheels=drivetrain losses.

Valve job or head port job I would say are your next steps.
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Unread 08-21-2013   #4 (permalink)
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My wheels as per Enkei website are the same weight as was my stock 19 inch wheels. So they are not more heavy than the stock.

For the gears I already have 4.10 gears.

What else I can look for?
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Unread 08-21-2013   #5 (permalink)
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Yup look for some lightweight wheels, something 18", something <20lbs. That will give you a nice butt dyno gain, and remove a lot of drivetrain loss.
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Unread 08-21-2013   #6 (permalink)
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Ok but for parts, what I should go for? It's a good advice for the wheels and I will change tires as well for a better tire.

But for power what can I add? Better tune is always a good thing also.
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Unread 08-21-2013   #7 (permalink)
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Have you looked into the Ford Racing Cobra-Jet intake? People seem to be getting decent gains over the Boss intake. It wont be cheap as you will also need to replace your TB and CAI. I agree on valve job/porting is also an option. Also the Cobra-Jet ignition pulse ring to get a little more rpm. I think you are already beyond any easy or cheap hp or tq gains.
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Unread 08-21-2013   #8 (permalink)
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47# fuel injectors and e85.
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Unread 08-21-2013   #9 (permalink)
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If you want more power than you have now NA is not the route I would go. You're going to start giving up driveability and reliability if you try to make more on muscle. I bet the reason you have no traction problems is the cams, they don't make much in the lower rpms, and just about anything you would do to add more NA power is going to bump the power up higher. It sounds like fun to drive a killer NA motor on the street, but in reality it takes a lot of the fun out of the car, the power is in rpm's that are pretty useless for the street.
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Unread 08-21-2013   #10 (permalink)
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Some better tires would help a lot. The Falkens are...not that great.

You are approaching the realm of "track car" NA. Only fun on the right side of the tach.
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Unread 08-21-2013   #11 (permalink)
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New tires are on my list you can be sure about that. It will probably be Continental, Michelien Super pilot sport or Yokohama Advan or something like that.

Well if I do a job on the head of the motor, can it give me a little more hp?

You are probably right for the cams, they did change my power on the higher rpms and for that I don't have traction problems.

So what I don't have a lot of options.

Maybe go with supporting mods for the motor, better heads, what else.

And also thank you for taking the time to put an answer to my question, it's always appreciated by me.
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Unread 08-21-2013   #12 (permalink)
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Quote:
Originally Posted by manolith View Post
47# fuel injectors and e85.
I would say this..... You seem to have every bolt on available..... maybe cams if you have the $$
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Unread 08-21-2013   #13 (permalink)
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I already have Comp Cams stage 2 cams and E85 is not widely available up here.
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Unread 08-22-2013   #14 (permalink)
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What are you current #'s? WHP/WTQ?

At this point I think you are going to get little return for your money but, I'd definitely look into the CJ Intake Manifold and ported/polished GT or Boss heads.

Mike
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Unread 08-22-2013   #15 (permalink)
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Quote:
Originally Posted by Smarties View Post
I already have Comp Cams stage 2 cams and E85 is not widely available up here.
just saw that now.... lol.... I think they may have to invent more bolt-on's for you.... Do you have the BBR 160 degree thermostat?

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