Mustranger

What he said ^^

dave_bought_another_black_stang

This car is going to need those 18 inch rims to stay grounded with only slight mods.

Greywolf

Can't do it cheap you need software and knowledge and preferablly a dyno

grrr428

what he said

jm3

real quick

Tune: maybe some hp, especially with cam timing, but most cars run fat after 30 -40 seconds anyway to prevent problems. Still good afr at anything less than a dyno pull or a high speed run.

Pulleys: Gonna be tough on this car, it can be done, but the crank pulley is huge, and the other pulleys can only physically get so big.

X pipe: The factory 2.5 inch exhaust has an"H" connector only about 4 inches long. you're going to have to be a pretty big believer in x-pipes to notice a difference.

The hp is gonna come from the intake, and it is going to need to be MUCH more clever than just a cone filter and some Taiwan Tubing.

jay

JZInternet

When they put these cars on the dyno, how consistant are they with each other. For example if you tested 100 new 2005 mustangs would they all be the same hp give or take 1 or 2 horses or does each car vary more than that?

Jason

Evil_Capri

Jason-

Well 2003-2004 Mach's vary from 260's to low-mid 280's hp and there could be as much as a 20lb torque variance as well from ~280's to low 300's.

Mine dyno'd at ~273hp, and ~293 tq. A good SCT flash could gain me as much as ~15-30 hp/tq to the wheels (as stated by Modular Depot), depending on numerous variables including turning "off" my Knock Sensors.

EDIT: I also wanted to add that the variances in Mach numbers is also due to different environmental conditions (Where, Temp, Humid., etc.) just to clarify.

Dan

Now, if I were to buy an aftermarket intake, would that void my warranty? Or would they look the other way?

I would like to keep my car almost stock except for:

- exhaust
- rims/tires
- possibly intake

I purchased the 7yr, full milage warranty. I know rims/tires and exhaust are not a big deal, and that reflash will void the warranty, but the intake?

conv_stang

im sure the intake will void the warranty. supposedly just the intake elbow and T/B change on the 99-04 GT's ford will try to void your warranty. if you are in good with the dealr and GM and have all the work done there. you might get them to hold up on the warranty

JZInternet

Jason-

Well 2003-2004 Mach's vary from 260's to low-mid 280's hp and there could be as much as a 20lb torque variance as well from ~280's to low 300's.

Mine dyno'd at ~273hp, and ~293 tq. A good SCT flash could gain me as much as ~15-30 hp/tq to the wheels (as stated by Modular Depot), depending on numerous variables including turning "off" my Knock Sensors.

EDIT: I also wanted to add that the variances in Mach numbers is also due to different environmental conditions (Where, Temp, Humid., etc.) just to clarify. [/b][/quote]
Wow that's a huge difference. What causes such a wide range of HP? Also did you mean that the mach1 varies more than a stock gt, or do they vary quite a bit too?

Thanks, Jason

00StangGT

alot depends on how much the engine is broken in and how it's been run.....

if it's been ragged on then it might lose some power and vice versa

Galaxie

Dan, I think it works like this,

with the oiled cotton & gauze filters like the K&N, there is a chance if the filter has some extra oil residue that coats the filament on the MAF sensor wire. If that sensor fails because of the intake, they will not honor the warranty on that claim.

I believe there is an aftermarket intake/filter out there that is not oiled, not sure myself.

AFBLUE

It was peformed on a dynojet.

Part of it is due to the fact there are different types of dynos. Mustang, dynojet are the two most popular.

But even if you took the same car to two different dynojets or two different mustang dynos, you will still get some variations.

The key is to compare apples to apples, i.e. compare two cars that have been dynoed on the same system.

Also it is important to use the same dyno when you are modifying your car so that you can precisely measure the changes.

bob

Heh, heh... with 1 less valve too. Wonder what this motor is really capable of? I bet they could've gotten 300 hp out of the 2v SOHC if they had wanted too.

If chevy can get 400 hp from a 6.0 liter.....

I really hope Ford does an SE 3v 4.6 with at least 50 more HP myself.

BillP

If Chevy can get 400HP from a 6 liter, then we should be getting 306HP from a 4.6L.

Oh, we are.

;-)

bob

I know the 3v 4.6 is putting out the same hp/liter, however I was refering to a 300 hp 2v engine (hindsight I know in light of the 3v 4.6), but the jist of my post is; Ford please ring this 3v 4.6 for all its worth before you start resorting to more valves, more cams, increased displacement, ect. (well not that I'm against NO REPLACEMENT FOR DISPLACEMENT) Its just that I'd dearly love to see these guys optimize this engine configuration before taking the easy way out.

Fazm

As far as ford tuning their new mustang to run a little on the rich side, engines have a tendency to last a little bit longer on the rich side, compared to lean. Lean cars will produce more power, but do not last as long. For example, when you install nitrous on a newer gt (not an 05) it is already running on the rich side, and there are companies that will gaurantee upwards of 150 shot of NOS. This is only possible because the car is already rich. If you take a car that is running lean (say an acura rsx type s) anything over a 50 shot of NOS will significantly shorten the engine life.

P.S. Lopers told me they would garuantee 100 shot of nitrous on my 01 gt, only heard of someplaces that will do 150 (complete NOSzle system from edelbrock).

hatsharpener

An engine that is running lean is more likely to detonate and cause serious engine damage (i.e. send a piston out the side of the block). Detonation can also occur if you accidentally get a tank of bad gas that isn't of the proper octane rating. If they make the mixture a little more fat (rich) from the factory, they won't have to worry about premature engine damage due to detonation.

hatsharpener

The number you get from the factory is essentially the bare minimum that you would expect. You may get more, but generally speaking, you shouldn't get less.

RARE 5.0 NOTCH

I have a 2004 gto auto and bone stock it put down 304rwhp 326.9tq