Can you guys tell me what hp and tq you think I am pushin with the mods that I have now. Also, what do you think it would be after i get my longtubes and a o/r x pipe. Thats my next mod. Just curious, Thanks

 

I'd say in the 240-250 range.

After the LT's and mid pipe maybe 270 rwhp.

 

I think 270 might be just a bit high for it but not totally unreasonable wtih the other mods.

I'm betting 235-255 current and 245-265 after the LT's and mid-pipe. 02-04 5sp GT's usually put out around 225-235 bone stock around here (sea level) and maybe 240-270 with bolt-on's and a tune. Don't believe the numbers bolt-on manufacturers claim. They're always unreaslistic for the average Joe.

I'd consider getting a custom dyno tune done. Predators have been hit and miss with all the guys I know in getting a good tune.

 

I want to get a custom dyno tune but i havent found any dynos around here. Thats why I havent gotten any Nitrous yet, because i want the tune done with it.

 

and its hard to believe that I am only making that much HP, im sure thats what it is but it just feels like it has so much more than that.

 

You probably already know this, but keep in mind that that's 270RWHP. At the engine you'd have about 320.

 

but isint the rwhp all that matters

 

to tell you the truth i reall dont know why its different

 

RWHP = Rear Wheel Horse Power

When Ford says your car has 260HP, that's 260HP that the engine has by iteself, out of the car. Once it is connected to the tranmission, it losses about 15% of it's power because of the mass of the flywheel, gears, driveshaft, differential, axle and wheels. So when the car is dynoed, and the power is measured at the wheels and not the engine, a stock Mustang will show 221HP at the wheels, even though the engine by itself is capable of making 260HP. So if/when you get your car dynoed, divide the RWHP number by .85 to find out how much power (roughly) your engine is making.

 

Remember too, there are 4 ways that you can make your car perform better:

1 - Allow your motor to make more power (ie exhaust, nitrous, TB's etc...)

2 - Allow your car to me more efficient by freeing up available power so that you make the same at the motor, but put more down to th etires (ie ac elim, UDP's, better fluid etc...

3 - All your car to transfer the power better (ie control arms, gears, subframes etc...)

4 - Loose weight.

Also, adding gears such as 4.10's will show a drop in hp at a dyno.

 

isnt crazy horse racing near you?

 

That "divide the RWHP number by .85 to find out how much power (roughly) your engine is making" statement is good to know.

Using your math..i have. 289HP at the Crank. And I had my car dynoed and it has 246 at the rear wheels...but this is BEFORE i had the pullies installed ..so it might be a couple HP more now..

 

Yeah, .85 for 5 speeds and .8 for automatics (because the automatic's torque convertor looses another 5%).

 

so dos having control arms actually add rwhp?

 

nope. It helps you use it better.

 

Zaff, you have 4.10's in it which is acting to multiply the torque you produce a heck of a lot more than stock 3.27's. more torque gives you that shove in the back that feels like you're going fast and cuts your 60' times if you can plant the power on the ground.

Suspension improvements like upgraded control arms and shocks and springs can be the best investment you make toward your performance goals. Usually the problem with performing to your engines potential is more a matter of getting the power and control to the ground than adding power.

 

what control arms and shocks would you reccommend?

 

You'll get tons of answers from everyone but the one name that makes everyone's list is Maximum Motorsports. They have control arms and custom valved Bilsteins that you'll be very happy with for a long time to come. They also sell adjustable Koni's.

Call up Maximum Motorsports and ask them what you should get. They'll interview you on what you want to do with the car, how you want it to ride and all kinds of other stuff and come up with a parts list that will get you there.

 

i think that will be my next mod after i get my headers and x pipe. Thanks for the info