I'm doing some initial research how to safely and efficiently get my 996TT X50 to ~600AWHP. The car will be driven regularly and will spend plenty of time on the street and some roll racing amongst friends from time to time.

Currently the cars has a flash, 5 Bar FPR, exhaust, K&N filter...in other words fairly basic. Although I haven't personally verified I'm told the car is reading ~420AWHP on a mustang dyno (local shop that is known to run on the lower side)

What mods do you guys suggest and in what order to reach my goal? I'd assume bigger injectors would have to accompany what ever is on the top of the list. Also, is it unrealistic this think I can safely achieve this without touching the motor?

 

First pick your fuel.

For 93octane -- k24/18g (or billet whatevers) will get you mid/upper 500s running strong.

You will also need a clutch. (and injectors (switch back to 3.8 fpr), a fuel pump, intercoolers, boost controller).

On racegas the same equipment on a good day with no leaks could bring you over 600whp.

Not sure if you already have a tuner but I'm a big fan of Markski at 911tuning.com -- he will get you there with minimal parts and no BS.

 

I'd be running on 93 (for now at least). It does seem like the consensus is to go back to 3.8 FPR if running larger injectors, for my own knowledge why is that?

I have lots of respect for Markski and the information he shares on here. Everyone seems to have great things to say. I'm fortunate to live close to a local tuner (Undercover Performance) that I've used in the past and will be working with them on any tuning/installs.

 

Running the 5bar raises fuel line pressure from 3.8 to 5. That forces your injectors to flow more fuel than the stock rate. It's not as "precise" as using the proper sized injectors for the power goal you have in mind, and if you're tuning for a certain horsepower goal, you want to make sure that your fuel system is able to deliver the amount needed at the set boost level without worry.

 

5 ba fpr is like a bandaid fix, your pushing more pressure then normal through the system. instead of getting properly sized injectors and running the same pressure the system was designed for.

k24/18xt wheels aka billet will get you enough turbo
you'll want to upgrade the clutch, intercoolers, inlet pipes is a nice addition if you dont go fenderwell intakes.

if you need a set of intercoolers or a clutch i have some i just took off that would work well for you.

 

garth at undercover!!! say no more. your in great hands. sit down with him and tell him your goals. make a detailed plan ( parts, timeline and cost) and give him your car.

he will be tuning my proefi setup in the next month or so and the knowledge, advice and parts i have gotten from him speak volumes. he will get you the power you want safely!

 

Awesome, thanks guys. I always like understanding the 'why' behind suggestions to learn more about the platform and tuning in general.

 

HI,I have went thru my X-50 since it was stock step by step with all the supporting mods,,as my signature shows,, did many dyno tests of parts and I paid 2 different tuners to tune in my combo on the dyno..Talked to many,picked others brains and hung out at the dyno shops ,,,
With 93 pump gas , no race gas or no Meth, I am pretty sure you will not make 600 AWD hp with K24/18g set-up. My set-up runs great even though its not there...
So you would have to run race gas or Meth with them OR a bigger turbo..
Good Luck..

 

I have K24/18g with an Aquamist 50/50 system, upgraded injectors, an EPL tune, Europipe S2 quiet and it puts down 563 AWHP on a Mustang Dyno. With my tune I run 93, but can run 91 in a pinch.

I am on my 4th year with the car with this tune, track it 10-15 days a year and it is running strong. I just had an oil analysis and a leakdown test and my results were very consistent and strong.

 

I am at 550hp/600tq with 93 octane on a Mustang AWD dyno.
I have all the supporting mods,as my signature shows, and run an additional 044 fuel pump also..

 

600awhp is hard on a mustang... you may pull it off with a bigger 20 billet wheel in the K24 housing with meth and race gas... big intercoolers, injectors, intake to turbos, possibly another pump as well as a 3" open exhaust at 1.5 bar on stock motor...
But Im guessing you might need a Alpha 30r turbo with the above to do that....
A lot of odd dyno numbers fly around and or some show unexpected figures and then we look at them and expect it to be the norm... I disagree... a k16 billet dies at upper 500s... a k24 billet dies roughly at 600ahwp... a Alpha 30r produces another 50awhp with all things being equal lets say at 1.5 bar... there is no magic... you see, you can peak a number you want with a small turbo but will get destroyed on the street with a bigger turbo that produces the same peak number with less stress and heat and better area under the curve...
good luck,
markski

 

On a mustang dyno at EPL. My setup at the time was:

18G's
Fabspeed Exhaust
AWE Intercoolers
Aquamist Ethanol Kit
Upgraded Plenum
Upgraded boost tubing
Upgrade DV's
1 Bar Wastegates AMS
72lb injectors
5bar
1.3-1.4 Bar


The car made around 585whp but made 610wtq......

 

If added Meth that would increase my 93 oct. 550 AWD hp but I would like to make 600 AWD hp also on 93 oct. only.
So I have always been torn, as many know on here from my past threads/posts, on if its worth going to a 3071 or before it was going to a K24/20 billet..
Hmm.Maybe the new style bigger A28 wheel type then? LOL..

 

I would get the tial bolt ons 3071 and all supporting mods. 600awhp is not a easy as you think. Might happen with those turbos and pump but will be pretty laggy. I like idea of k24/Billet 550awhp pump and disastrous torque still 630awtq range.

S

 

Actually the 3071 will spool quicker then 18gs..