sweet99

I would not bother to mod a GT unless it was with a SC. Not much potential. My mods are in the sig and cost me $3K+ with wheels and tires to gain .5 and 5mph. I needed an automatic and it's a convertible so I bought it otherweise I would have passed. I did not know about the Mach 1 and Cobra's until I had the GT but with the prices of the Mach's and Cobra's I probably would not have afforded one as I will not make payments.
I would get the Mach or Cobra. Much more to start with and more responsive to mods.
By the way my 4 cylinder ricer had closer to 500crank HP at 30 psi of boost. I would rather have my GT with a SC at 6psi though, much more reliable. mark

SVTBill

Id rather be working with 8 cylinders too, much more potential and more reliable...I just got back from looking at some Gts, looks like its going to be a while before i find that special someone...haha. How much did you guys pay for yours, if you dont mind me asking? How is it that the 4.6 v8 can only stand 8psi safely when the stupid little 4 cyls can run @ like 20 and still be fine...? They do it and they dont care its not safe or something? Thanks.

Fryguy22

for 19k you can easily good a GT with pretty low mileage and a blower.

SVTBill

Thats what im hoping....hopefully ill find one in the next few weeks or so

Fryguy22

it may be possible to find an 03/04 cobra form 20-25. however your insurance will be incredibly high and its a 6-speed. However, it has forged internals and it is a pulley swap and a set of DR's away from being an incredibly quick car.

2000GT4.6

If your going to put a blower on it, both cars basically run out of potential around 440~ or so RWHP.

The only difference is the 4v will be easier to get to that point. You are going to need more aftermarket parts (exhaust, and cams or an intercooler) to make maximum potential with 8-10 PSI on a GT, compared to a 4v car.

SVTBill

Thanks for that clearifaction 2000GT4.6 my next question was going to be where does the potential end...which is cheaper to get there though do you know? im hopin to get it around 350 or so then ill be out of money most likely.

mylongvictor

A GT with gears and 75 to 100 Go baby Go juice will outrun a Mach 1

SVTBill

How safe is the juice? I herd it's not all that expencive for a ls1 but, I don't know about for a stang.

sweet99

I can't answer for the v8's but the 4 cylinders I have had with turbo's can indeed take 20psi in most cases. The Chrysler Conquests of the late 80's had a motor that was actually a fork lift motor and had a bullit proof bottom end. The Talons can take the boost also and are amazingly quick as they have heads with runners much larger than a 4.6 has. Ported they can flow 300cfm easily. Even though they are not forged from the factory they are designed for boost so I would think they are beefed some.
Remember that a bar is 14.7 psi. A NA motor relies on the vacuum the motor creates when the piston drops down, along with the 14.7 lbs. of pressure that is outside.
Roughly each 4psi adds 25% to the existing power. So at 20psi power is increased by over 125%. On a stock 4.6 that would add 325HP, crank HP of course. A 4 cylinder Talon would be brought to 400crank at best with the supporting mods.
The most important thing to remember is to have enough fuel available and most motors are safe if the rods are strong enough.
With a well set up Talon a wideband o2 meter and EGT gauges along with a knock sensor and o2 voltage gauge among others are used to minitor the goings on in the motor. mark