Eaton Swap.....

[TLayson23]

Hey guys, I'm new to the site, I just bought a 03 Mach 1 with a full 03/04 cobra motor and eaton and have a few questions for you guys who have much more experience than i do. First off here's a pic -



I'm running a GT40 supercar fuel pump, which is doing great for the setup i have right now, but from what i've heard if i get into much more power i'm gonna have to go to the cobra dual fuel pump.

I love the car and it's running great, but as you can see the intake isn't so nice looking. So one of my questions is, can i still do small mods (intake, catback) without having to go to the dual fuel pump?

Also, it obviously was dyno tuned after the motor swap and has a SCT chip. Do i have to get a tune after every mod now?

I know these might be stupid questions but like i said, I'm not new to mustangs but i'm VERY new to motor swaps/superchargers. Anything you guys can help me out with is appreciated :THUMBSUP:

[ASH302]

one the small bolt ons like cai and exhaust i would say no, i've been running that stuff for a few years without getting it dyno you will be fine. i changed my CB after i got mine on and no problems.

also you can do dual gt pumps, dual cobra pumps, or dual focus pumps. i would think it would be easier going with just another gt pump for price wise. but i would say if you don't know what the dyno stuff is on it, i would try to get the money togather and go get it dyno just so you know what everything is looking like. i was going to say that is a big big air filter. lol but its all good.

like i said imo you don't need to go get it redyno with everylittle bolt on you do. i would suggest though once you do the dual pumps go get it redyno. also no also on having to put another pump in there for CB and CAI, you will be fine imo

ASh

[TLayson23]

Originally Posted by txmach302

one the small bolt ons like cai and exhaust i would say no, i've been running that stuff for a few years without getting it dyno you will be fine. i changed my CB after i got mine on and no problems.

also you can do dual gt pumps, dual cobra pumps, or dual focus pumps. i would think it would be easier going with just another gt pump for price wise. but i would say if you don't know what the dyno stuff is on it, i would try to get the money togather and go get it dyno just so you know what everything is looking like. i was going to say that is a big big air filter. lol but its all good.

like i said imo you don't need to go get it redyno with everylittle bolt on you do. i would suggest though once you do the dual pumps go get it redyno. also no also on having to put another pump in there for CB and CAI, you will be fine imo

ASh

Alright thanks alot for the help!

[ASH302]

you really should be fine and i like the jlt cai they look good and you can get em to match your paint, i like em and think they look really good on the stangs. but i would for sure redyno just so i know what its running just to make sure, can't go wrong and better to be safe than sorry in the long run. also might want to make sure its got a safe streetable tune on it and not a aggresive one, that will also help the life of the mach and also i would say not beating on it ever chance you get. it wouldn't hurt i say to upgrade to dual pumps, i did dual pumps and BAP just so i wouldn't hit be close to maxing em out when i got it dyno

ASh

[xXAzureMach1Xx]

You will need to get it TUNED if you do CAI and exhaust but maybe not if just one. I had a bone stock mach with the eaton and put a OR H pipe and needed a tune, then put catback and CAI and needed a tune. Buy all the things you want to do to it and put them on at one time then get a tune. ANYTIME you mess with your fuel set up you will atleast want to get the AF check. Like i said before you really should check the AF. Not all cars are the same but i was out of fuel with a GT40 pump with a stock car on the first pull and needed a BAP. You could always get a wideband to make sure the AF is good. To go dual pumps you really need a cobra tank. you can put the dual pump hat in the mach tank but it isnt set up for it so you could run lean at WOT with around a 1/4 tank.

[TLayson23]

Alright thanks guys... what i'll probly end up doing is ordering the CAI and catback and getting them installed and tuned at the same time, and also have the AF checked

[blackgtcp]

Question: I was looking at the cobra that I am swapping parts with. Behind the heat exchanger there is a large (3 footish) coil element type thing. Almost like a heater element. I think it goes with the oil cooler? Is this something we need? First time ive seen/heard of it.
Also where can I find the torque specs for everything?

[xXAzureMach1Xx]

Think that is the PS cooler.

[TLayson23]

Does anyone know if there's a kit that i can buy for the shaker to mount on the eaton?? I've been messing with it but i'm not much of a metal fabricator and i'm havin a little trouble

[Scott McClure]

Originally Posted by TLayson23

Does anyone know if there's a kit that i can buy for the shaker to mount on the eaton??

No. Your on your own.

[TLayson23]

I figure this is the place to ask... but my car is about midways through page 20 so you all can get the idea of what i have. I have a fuse missing that is for the "Intercooler Pump". I didn't know if there should be one there since the motor swap or not.

I have the Cobra factory heat exchanger so i thought this fuse should probably be there. Would it hurt to put one there just in case?

[LowOnFuel]

So I've seen some posts saying the Cobra throttle body is needed and others saying it's not. Can someone clarify? Are they different? Is there a specific one we need to use? Is there an advantage to one over the other?

Thanks

[machgsxr]

Originally Posted by LowOnFuel

So I've seen some posts saying the Cobra throttle body is needed and others saying it's not. Can someone clarify? Are they different? Is there a specific one we need to use? Is there an advantage to one over the other?

Thanks

Ive used the stock one on all my builds. Thats why it is not on the list of needed items. Go by the list and your good.

Now if your talking aftermarket ones, then yes they are different depending on which one you go with.

[LowOnFuel]

Gotcha...thanks!

[Mudd92]

Still loving mine, doing good. Just hating the alternators.

[nickster]

Originally Posted by Mudd92

Still loving mine, doing good. Just hating the alternators.

put a bigger pully on the alt 3 in plus

[blackgtcp]

*question.. I think I read somewhere that only the lfp and stock heat exchanger will fit behind the Mach bumper. Is this true? I'd like to upgrade but have heard horror stories about LFP

[machgsxr]

Originally Posted by blackgtcp

*question.. I think I read somewhere that only the lfp and stock heat exchanger will fit behind the Mach bumper. Is this true? I'd like to upgrade but have heard horror stories about LFP

I run the biggest one there is the afco pro series and it fits, you just have to notch out 2 small pieces on the underside of the bumper other wise the h/e pushes down on it. I cut them out after I had the bumper mounted. IIRC, it was only like a 2" x 2" square I took out.

[Mudd92]

Originally Posted by nickster

put a bigger pully on the alt 3 in plus

Yea I put a 3.2 on the one I put on yesterday but I think the regulator crapped out because I was driving all day yesterday with between 13.8-14.3 like normal and then i came out that night and it was over 16v!! Boiled my battery but i run every acc. and was able to keep it under 15v to get home

** and theyve all been OEM motorcraft!!

[DarkMach1]

Originally Posted by Mudd92

Still loving mine, doing good. Just hating the alternators.

How many alternators have you been thru? Aren't you still on the stock lower?

[Mudd92]

I think about 3 at this point. They go for a while and just crap out at random.

[Scott McClure]

Originally Posted by Mudd92

I think about 3 at this point. They go for a while and just crap out at random.

Then something's not right. Are you buying new Ford alternators or rebuilds? Stock lower? Are they getting wet? Even with a stock lower the alternators tend to get overspun.

[Mudd92]

Stock lower, they are coming from ford but there all remans, even when I ask for new. I put a 3.2 pulley on this one I put on sunday, drove it all day, did great, at WOT above 5k i was for the first timing keeping over 13.5V. but I got in it and fired it up last night to go home from a buddies and it was spiking 16v. I ran every acc. on high and could be easy on the rpm's and keep it below 15 barely. Boiled the battery over some but i made it home without frying anything as far as i could tell.

Im going to double check I got the power wire good n tight but I got another one under warranty. The one that died before this lasted about 6 months.


I dont see what could be going wrong??? I dont think there getting wet, maybe a little moist in the rain but i dont hose it down or anything

[Mudd92]

I would GLADLY take any advice someone could offer if theres just something im not seeing? Because this sucks.

[nickster]

turning mine in reverse,3.2 pully ,still working and i turn it up alot/hope it stays working