Friend/Customer of mine just bought a 04 Cobra
He's a little older, and doesn't have any on hand experience
on Moding a S/C Vehicle.

He's had it a month or so, he's only driven it limited times due to this absolute B/S weather we're STILLL HAVING (20's tonight)
But he's putting some miles on it during the nice weekend days and long trips out east to the end of LI.
(he bought a Yellow Convertible (converts the only way to go)

He says his Boost guage hardly moves at all.
He's new to all this, especailly S/C's, but he tells me he has to really really get into it to see any movement at all, and then it's very limited. I've asked him to try a few things out like get on a parkway short shift 1 2 3 and then firmly go WOT and tell me what it reads.

here's the Questions:
What does the Factory Boost Guage go up to ???
How much Boost should he have stock (8 ?)
How far into the throttle til he shows Boost ? and how much ?


Next series of Questions: (you know I talked to him @ modding it)
Whats the best Filter System for it
Will he notice a diff in power + Boost
Does it pay for him to get a Predator
And what HP can a Predator add to a Stock Cobra ?

Thanks All........

 

Ported Eaton
6-8# lower
chip
UPR airkit
Magnaflow exhaust


A friend of mine has the one of the two top horsepower stock Eaton snakes in the country with this combo

 

Dragon, that sounds like an awesome set up,
and like something I would run,
but not for this guy, BELIEVE ME.

He's a Wrrnty Kind of Guy, so I was thinking a good Filter System,
Maybe a Predator STOCK tune, and good thinking I like the thought of the Magnaflow. I may have him check with the Dealer, most offer a Performance Package for the Cobra's. I hate to have him throw a few Mods on (or Preadator Tune), and loose his wrrnty. I will explain that to him fully before making any sugestions.

But What is this UPR airkit ??? never heard of it, I think ?

 

http://www.uprproducts.com/shopping/...cts.asp?id=107

 

Rob:

Perhaps his boost actuator needs an adjustment. My best guess. I could maliciously mis-adjust an actuator and get the type of non-performance he's describing.

Properly adjusted, his boost should hit exactly like a Lightning with a proper adjustment, which is to say...

No boost at a steady cruise (at any sort of speed below 80 or so...), but instantaneous maximum boost as soon as the pedal is stabbed anything beyond that.

That's about as greedy as you can get and still be properly bypassing when not under load.

 

I read somewhere that they dump boost until the car reaches 500 miles. Not sure if its true or not.

 

It takes a little more throttle to get boost out of a stock cobra. The Lightning seems to make boost with less effort. I think it's related to the 6spd and the nature of the 4 cammer. They turn into animals with just a cold air intake and catback. You should see about 8psi stock and close to 10psi with a filter kit.

 

Hey Rob,

While I was at the dyno last week, the SVT tech had a new Cobra there as well. The dealership was modding it out slowly and datalogging the results to show what the car could do...ANYWAY, the Cobra had a predator tune ad catbacks....thats it. It put down a 450RWHP. Not too shabby. (I may be a little off on the #'s but very close. The mechanic, Wayne(he is on here sometimes as BrownBroPerf) was telling me the best mod is exhaust first...something which I don't think will affect your warrenty.....My L got towed in there today(again!) and will see him tomorrow aand will get more info for you...

 

Since I own 1/2 a Cobra , I will give you 1/2 an answer. Air Intake, Cat-back and maybe L upper pulley. That is all he really needs.

Good air in , out and more power, but nothing to wild.

BTW- You could have just waited for me to call to ask , (Because your too damn CHEAP to call me. )



VINNIE

 

Awesome Info already THANKS GUYS

I thought of the boost actuator immediatly myself, I wonder ???
Thanks Silver. As for dumping Boost, that brings up a great question, CAN YOU DO A BOOST BY-PASS MOD on a Cobra,
is it as simply as disconnecting the Wire like ours ?

I have the instructions on adjusting the Actuator, but I'd make
Ford do it for him, if it's that. (he may not be staying into it, or going WOT and taking notice of the guage)
I'll have him bring it buy work and we'll take it for ride so I can see what it's doing.

Nice Air System Dragon, THANKS for the link,
I'll show him that one, looks very simular to the one I had in my 96 Cobra AMOF.

 

The boost actuator should be fine, there isn't much play with them. He can do the boost bypass mod with the vacuum lines, unplug it, or turn it off in a tune.

By the way, with the few mods Vinnie mentioned will cause a Cobra to run mid to high 11's.

 

I have a JDM flip chip, 2.8 upper , cold air intake and ported eaton on my cobra and i couldnt see a need for any more power in a street car

 

Wow how slow is this place tonight, I post an answer and by the time it goes through, like a hundred other people already posted.

hey V FU your never home, how can I call ?

WOW more great info, Thanks Everyone
Great Dyno Info quickcanuck , the Exhuast, and Filter seem to be a great Bang for the buck, good boost info 99, thanks all.

Face it V, Teri DOES NOT let you drive HER Cobra,
just wait til She leaves yo a$$, AND TAKES EVERYTHING INCLUDING YOUR BEAST money, and retirement
Call me tommorrow you hump.........

 

He should be around 400 to the wheels with the predator and the filter. Ask Chris (SUPERFORDS) He had a couple of buddies with 03 cobras dyno saturday, when he dynoed his L. I am not exactly sure what they had done, but one had a filter and pully, and dynoed like 420, and the other one had exhaust, intake, tb, predator, and he did like 430.

later
brian

 

With a Steeda CAI, bassani-x/with catts, bassani Catt back i hit 420 rwhp with a baseline run of 367rwhp. The pred actually ddint get me much gain untill we pullied it. I dont reccomend doing ANY pulley upgrades without dyno and program for it. All it takes is a bad tank of gas and you can do damage. Alot of people have no idea of what detonation is and will stay in the throttle. Also, not every car is the same, some will melt pistons even wit a 2# pulley and no tune, depends on fuel , temp , and altitude.
Have fun with that ride
Wayne