Roushcharged mustang gt
 

Hey guys new car just got it I was wondering do you have any idea what my 2007 mustang gt m90 roushcharged mustang with off road x pipe and flow master 44s would have?

Do you have a boost guage? I believe the normal peak boost is about 9-10 psi for the m90. It's dangerous to stare at your guage when going WOT with a blower, but 3rd gear shouldnt be too bad since I don't even spin my tires in 3rd when they're warmed up.

If yours is about 9psi, then i'd guestimate 400-450whp, depending on boost and health of motor.

Oh, and post pics.

No boost gauge would it be wise to buy one

I believe the most important one is A/F guage since that determines if your motor goes ka-boom, then a boost guage just so you know about how much hp you're putting down, then a fuel pressure guage. Then last but not least, a knock guage would be more insurance (never seen these but someone made a topic about them yesterday)

Guages and pods can be expensive but it's not only safety but also can look cool.


No pics? Imaginary car?

No m90 is making 9-10 psi......I wish. 5 psi is normal. Depending on your other mods you should be putting down around 375 ish rwhp if stock. Adding a cai, longtubes, smaller pulley and cams will improve it. All of those of course would need a new tune.

No need for gauges on the M90....you're not making enough boost to be concerned, just enjoy it!

Oh, and try punctuation...doesn't this read easier?

Not really. :)

Thanks a lot guys ill post a picture tonight! Oh and yes I have a tuner as well! Would long tube headers be a wise investment?

Agree with 808muscle, 5 psi boost with a Roushcharged M90 and stock pulley. Horsepower numbers maybe slightly lower at @355-365.
Long tube headers, pulley and tune will help horsepower numbers. A one piece driveshaft will help with torque.
Put it on a dyno for the real data.

How much added horsepower would headers give you?