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#4102512 - 03/22/21 03:50 PM How much HP can I get out of a N/A 4.6?
BrainIsSlow Offline
n00b

Registered: 03/19/21
Posts: 48
Loc: Arizona
I'm new here but I've got a 2011 P7B and I would like to know how much HP I can (realistically) get out of my 4.6 while keeping it N/A. P.S my budget is $2000

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#4102516 - 03/22/21 04:24 PM Re: How much HP can I get out of a N/A 4.6? [Re: BrainIsSlow]
TheCableGuy Offline
Over the Hill

Registered: 04/08/19
Posts: 1044
Loc: Far Northwest AZ
Need deeper pockets than that to make big power but.. here is a list of some stuff to make the car more fun, not totally “more HP”.

Jmod
Tune
Rear gear change.

For big power..

Boost.
Or do I dare say, nitrous.

Other possibilities:

262ah cams
Ported heads.

Or you can swap in a 5.4 2v for more torque.
_________________________
2010 P7B 150K. 11K hours. 3.27, RKE, Cruise, Ported stock plenum, JMod, ADTR sway bar, KYB rear shocks. DIY Headlight harness upgrade, with projector retrofit: Mini H1’s.

Previous rides:
2011 Sierra 1500 155K, too many mods to list. (RIP 01-05-2019)
2001 Durango R/T 5.9. 230K. SOLD 5-1-19

They laugh at me because I’m different. I laugh at them because they’re all the same- Heath Ledger


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#4102524 - 03/22/21 05:45 PM Re: How much HP can I get out of a N/A 4.6? [Re: BrainIsSlow]
WiGe Offline
Rookie

Registered: 10/20/20
Posts: 54
Loc: Portland, Oregon
with that budget, i'd get a Marty tune, 4.10 gears, and exhaust. Won't be a big jump in power but acceleration will be very noticeably improved imo
_________________________
2011 P7B, 140k 3.27 gears
- SCT 93 octane tune, 2nd cat delete, dynomax bullets, fog lights, Towncar seats, push bumper, explorer center console, bumper tuck, side trim removed.

2001 IS300
-Stock with a Slushbox


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#4102566 - 03/22/21 10:51 PM Re: How much HP can I get out of a N/A 4.6? [Re: WiGe]
2004_p71 Offline

no replacement for displacement
Posting Addict

Registered: 09/04/03
Posts: 15777
Loc: Quebec Canada
Originally Posted By WiGe
with that budget, i'd get a Marty tune, 4.10 gears, and exhaust. Won't be a big jump in power but acceleration will be very noticeably improved imo

This x2
_________________________

Best time 13.079 @ 105 1.8 60'
comming back this fall

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#4102716 - 03/23/21 11:20 PM Re: How much HP can I get out of a N/A 4.6? [Re: TheCableGuy]
BrainIsSlow Offline
n00b

Registered: 03/19/21
Posts: 48
Loc: Arizona
Will the 262 cams hinder my low-end performance? How much does it usually cost to have someone install them?

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#4102718 - 03/23/21 11:21 PM Re: How much HP can I get out of a N/A 4.6? [Re: TheCableGuy]
BrainIsSlow Offline
n00b

Registered: 03/19/21
Posts: 48
Loc: Arizona
Will a 5.4 need a new wiring harness or are the electronics interchangeable?

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#4102722 - 03/23/21 11:28 PM Re: How much HP can I get out of a N/A 4.6? [Re: BrainIsSlow]
TheCableGuy Offline
Over the Hill

Registered: 04/08/19
Posts: 1044
Loc: Far Northwest AZ
Installing cams by a shop can get pretty pricy.. even out of your 2K budget. Considering shop labor charge, and they do everything by the book, it can get expensive super quick if you aren’t doing it yourself.

5.4.. judging by all the research I have done, since I considered it for a minute not long ago.. doesn’t seem too bad. There is multiple members here who have done it.

It bolts up the same to my understanding for a 5.4 2v. The only real hurdle will be the intake manifold situation(I believe there is 3 options) for hood clearance and what not.

A tune will have to be done, or shift points will be all out of spec..

I found a very low mileage 5.4 out of an 03 F150 about 2 months back. Junkyard wanted $400 for the entire engine, just had to pull it myself.

I think when I get my own house and garage, I’m going to revisit the idea again.
_________________________
2010 P7B 150K. 11K hours. 3.27, RKE, Cruise, Ported stock plenum, JMod, ADTR sway bar, KYB rear shocks. DIY Headlight harness upgrade, with projector retrofit: Mini H1’s.

Previous rides:
2011 Sierra 1500 155K, too many mods to list. (RIP 01-05-2019)
2001 Durango R/T 5.9. 230K. SOLD 5-1-19

They laugh at me because I’m different. I laugh at them because they’re all the same- Heath Ledger


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#4102738 - 03/24/21 03:03 AM Re: How much HP can I get out of a N/A 4.6? [Re: TheCableGuy]
BrainIsSlow Offline
n00b

Registered: 03/19/21
Posts: 48
Loc: Arizona
I appreciate the input. Is installing cams something a novice can do with the proper instructions? I imagine it's easier considering the cams are up top on the modular.

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#4102740 - 03/24/21 03:08 AM Re: How much HP can I get out of a N/A 4.6? [Re: BrainIsSlow]
BrainIsSlow Offline
n00b

Registered: 03/19/21
Posts: 48
Loc: Arizona
I'm not looking for anything crazy. Just want to know what I would need to get up to gain 20-30hp

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#4102764 - 03/24/21 12:37 PM Re: How much HP can I get out of a N/A 4.6? [Re: BrainIsSlow]
TheCableGuy Offline
Over the Hill

Registered: 04/08/19
Posts: 1044
Loc: Far Northwest AZ
20-30hp? You wouldn’t even feel a difference. Honestly man, torque is where it’s all at in my opinion.

I have heard that a tune, like a 93 octane.. can bump up some numbers, some not much. Other than the small stuff, throttle body, plenum, which don’t really add up to anything except slightly better response, you’re kinda limited.

This isn’t an LS where 500 bucks can increase numbers with ease.

If it was me, I wouldn’t just do cams. You’d preferably would want to do multiple ‘things’ to get the best bang for your buck. Cams, trickflow heads, full cat back to let that crap breathe better. I mean, and that’s just some of it.. list goes on and on.

You could start with some of the small stuff and go from there. It won’t give you numbers but it will make the car a bit more fun to drive.

JMod, higher gears, tune. Some of the other DBW intake mods.
_________________________
2010 P7B 150K. 11K hours. 3.27, RKE, Cruise, Ported stock plenum, JMod, ADTR sway bar, KYB rear shocks. DIY Headlight harness upgrade, with projector retrofit: Mini H1’s.

Previous rides:
2011 Sierra 1500 155K, too many mods to list. (RIP 01-05-2019)
2001 Durango R/T 5.9. 230K. SOLD 5-1-19

They laugh at me because I’m different. I laugh at them because they’re all the same- Heath Ledger


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#4102766 - 03/24/21 12:38 PM Re: How much HP can I get out of a N/A 4.6? [Re: BrainIsSlow]
2004_p71 Offline

no replacement for displacement
Posting Addict

Registered: 09/04/03
Posts: 15777
Loc: Quebec Canada
Originally Posted By BrainIsSlow
Will a 5.4 need a new wiring harness or are the electronics interchangeable?

exactly same wiring harness
_________________________

Best time 13.079 @ 105 1.8 60'
comming back this fall

Top
#4102770 - 03/24/21 12:44 PM Re: How much HP can I get out of a N/A 4.6? [Re: BrainIsSlow]
2004_p71 Offline

no replacement for displacement
Posting Addict

Registered: 09/04/03
Posts: 15777
Loc: Quebec Canada
Originally Posted By BrainIsSlow
I appreciate the input. Is installing cams something a novice can do with the proper instructions? I imagine it's easier considering the cams are up top on the modular.

Just because you are asking it I would be tempted to tell you no but we all have to start at some point .
Usually that cam could be installed as is but preferably degreed and that requires a good amount of fancy tools and experience to do so.
_________________________

Best time 13.079 @ 105 1.8 60'
comming back this fall

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#4103042 - 03/27/21 03:53 AM Re: How much HP can I get out of a N/A 4.6? [Re: TheCableGuy]
BrainIsSlow Offline
n00b

Registered: 03/19/21
Posts: 48
Loc: Arizona
Are those jet performance throttle body any good? And at what do I need to do to avoid a check engine light when swapping my intake parts?

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#4103044 - 03/27/21 03:56 AM Re: How much HP can I get out of a N/A 4.6? [Re: 2004_p71]
BrainIsSlow Offline
n00b

Registered: 03/19/21
Posts: 48
Loc: Arizona
Do I absolutely need to get them degreed? What are the consequences of not doing so?

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#4103046 - 03/27/21 04:13 AM Re: How much HP can I get out of a N/A 4.6? [Re: TheCableGuy]
BrainIsSlow Offline
n00b

Registered: 03/19/21
Posts: 48
Loc: Arizona
If I get the cams before the headers, will I still get an increase or will I lose power? I don't have a problem doing things out of order just so long as they don't send me in the opposite direction.

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