I am purchasing a T04S and I would like to know what you guys think I will need to do to make the car safely drivable.

I have:
To4S, Downpipe, petit HF cat, stock exhaust, Power FC w/Commander (set to base Mod), stock injectors, Apexi FMIC, Fluidyne Radiator, I will be running 12 psi until I can get to a shop to tune.

Any Ideas?

Thanks

 

It would help if you let us know what your goals are for the car. With that in mind it will make it easier to give you direction.

 

I am no expert here but I can tell you that you will need to get atleast some upgraded secondary injectors and if that turbo is oil cooled an upgraded oil cooler or 2, unless you have an r1 model. You say stock exhaust but your sig says different,if it is a stock catback get a new catback cause the stocker will kill your spool. Boost controler of some kind.

That what I can think of off the top of my head, anyone else?

 

I agree he'll have to tackle his fuel system, but it'll help once we know hp goals and such.

 

fuel system, exhaust. i wouldent worry too much about the oil coolers. what are you doing for wastegate and bov,s airpump removal.

also a clutch is a good idea if your gonna make alot of power

 

I am looking for 350 - 400hp I do have the stock exhaust I purchased a Nurspec but hated the sound. I am looking at a Apexi N1 dual. I will be upgrading my fuel pump any suggestions? I have removed my air pump. I will be running a 40mm wastegate and a Blitz BOV.

If I keep the boost at about 12psi and upgrade the fuel pump can I run on the stock injectors?

I will be upgrading everything but only when the mighty dollar allows.

Your ideas are very helpful.

Thanks

 

You'll need to calculate your fuel usage.... use max cooper's site for that to determine if you can get away with stockers....
www.maxcooper.com
If you hated the sound of the nurspec you probably won't like the apexi duals... you could use a racing beat dual if you want a deeper sound, and with what you're looking for it shouldn't cost you too much power.
As for what fuel pump; you'd probably be safe with the supra tt pump.
-Nic

 

I want a deeper sound then the Nurspec. I will look into the RB

 

The to4s will flow alot more air at the same boost level as the stockers. Look for some people running a similar engine/turbo setup and see what kind of injector duties they see at 12 psi and see what size injectors they have. That should also give ya a good idea of where ya need to go.

Bob

 

One issue will be that the standard t04s turbo is not in its efficiency range at 12 psi. It likes to be at 14 to 20, but as has been said already you will run out of fuel before then, and your pump gas should only go to 15 lbs if your in CA, 16 lbs in any other state (91 super in CA, 93 almost everywhere else), and finally race gas over 17 lbs.

Also have to agree on clutch. I just installed an ACT XT (replaced a ACT street/strip) and even new it slips during hard drop launches (15 lbs of boost). I'm going to need the Exedy Twin Disk as was recommended to me after I bought the ACT.

Also have to agree on boost control - not certain if the stock solenoids can handle the spool of the t04s. However, you do have a cat (albeit HF vs. stock). However, you said you removed your air pump. Obviously you don't want to run your cat with no pump, so you'll need a mp. The Petitt resonated unit might give you the tone you are looking for with those aftermarket cat-backs, but you reallly will need good boost control since you'll have a good flowing setup with the Apexi FMIC.

Basically agree with everything that has been suggested. It's tough to do the single upgrade in stages....it requires a big jump of supporting equipment. Speed costs money - how fast do you want to go?

Beast

 

I have decided to upgrade the injectors (650cc-p and 1600cc-S), fuel pump (Walbro???) and get a boost controller either manual or electronic???. I might as well do it right the first time.

What about tuning will I need to get it tuned right after I install it or can I use the Power FC maps to make it work until I can get it tuned. Where I live I will have to drive 12 hours to get it tuned.

Any ideas?

Thanks again for all your suggestions......

 

Well, it's good that you're committed to doing it right. Now the only thing you need is a wideband - did we forget to mention that? Hell, it's only money. However, if you're not used to tuning, after investing all that money, what's another 400 clams and a day off? If the 12 hour drive is to a reputable tuner, then do it. No sense spending $5K+ and then skimping.

I have gone through one or two motors learning how to tune - expensive way to learn. I think I finally got it right after 3 tries.

Go electronic with your boost control. If I could do it all over again I'd get a profec B (probably will in the future). The old Pettit unit I have works well, but it's a pain to adjust (turning screws with a little screwdriver). I also think the solenoid on it is a bit slow - I get a tiny 1 lb spike before my boost stabilizes. The profec B has the biggest solenoid I know of.

Beast