The turbo itself is not a constraint. They are good for about 800hp. The constraint is the engine internals, timing, and fuel. Your question is really too general to answer.

On stock internals, SkiDazzle is running 10psi and putting down 454whp. Realistically, even with proper tuning, that is probably close to the limit in terms of longevity and reliability of the motor. he runs 8.5psi as the everyday setting.

With forged internals, sleeved block, significantly upgraded fuel and engine management, I figure 600-800wrhp is achievable.

 

I was just asking the max turbo output because of the stroker kit that came up a few days ago. From pictures of TT installs that I've seen, it didn't look like much more room for a bigger turbo if internals were upgraded. Thanks for the answer.

 

The twin turbo is capable of good 600hp - 700hp which is most likely more than what your stock internals will handle. Keep in mind this turbo is efficient around 15 - 20 psi, and with our low boost setting of 5.6psi we are barely scratching the efficient area of this turbo. There are plenty of room for growth with this unit.

In terms of timing control, i've been getting mixed feedback. If possible, I would like to use the timing control off the e-manage but according to Greddy this does not work yet. (Ignition coils getting fried) However Ultimate Racing has figured out how to work the timing control via the Greddy ignition harness. I'm still searching for more info and will enjoy my 5.6psi for now until the itch for more boost comes back. hehe

There are a couple of things you can do for timing.

1. Try to find out if the Greddy ignition harness will work. I'm hoping to use this method since I already have the e-manage.

2. J&S Safeguard (an additional piggyback unit that controls timing and read knock from the knock sensor)

3. Re-flashed with Technosquare. There are a couple of Greddy TT that ditch the e-manage all together and went with a re-flash.

4. A full stand alone. There is a member here working with the HKS F-Con and hopefully they can address timing.

Hey GQ, based on my understanding, the profec e-01 can hold additional map (up to 3 I think) and once you set the boost controller to higher boost it will send that new map to the e-manage. I might be wrong though.

 

There are alway going to be issues after a big install like that. Worst case scenario is you could install it . start it check it for leaks. take it for a short drive, then tow it and have it tuned.

 

So what is the best way to increase boost without hurting my engine and having all the timing and fuel amounts correct? Would it be just to get the Greddy Profec e-01? Or is there other instruments that I must have? I want to run around 8-9 psi.

 

thawk408 look for timing solution first before boosting higher amount.

 

That is kinda what I was asking. With the Greddy Profec e-01 take care of the timing solution? Or do I have to take it to a shop to have it tuned?

 

im new to FIs, i understand the theory under lowering the compression ratios, AF curve and stuff like that, but still sketchy about timing issues. how does timing place a significant role on FI? sorry for the newb question, but its interesting to me. thanks

 

You will still need it tuned. Greddy Profec might be able to take timing control but this is something you will not want to tune yourself unless you are familiar with programming the Profec e-01.

 

Everyone....repeat after me.....THE GREDDY KIT IS SAFE TO DRIVE AT 5.6PSI RIGHT OUT OF THE BOX....TUNING IS NOT NEEDED IF YOU LEAVE THE BOOST WHERE IT IS. The base fuel map is very rich and safe....relax.


350Now summarizedthe timing options. 8-10psi is very achievable on stock internals, but ONLY after you address the timing issue. The Profec can hold additional maps in the memory card included with the Profec. Potentially, you could have a couple of different fuel maps for different boost levels. But for now, the eManage isn't address timing until this problem with the wiring harness and the fried coils is resolved.

In practice, you could use just one fuel map, and then when you increase the boost with the Profec, it will see the higher boost level and adjust fuel accordingly.

My plan, is to wait for Greddy to figure out the timing with the eManage, and then use the eManage and Profec to control boost, timing, and fuel. Until that happens, I'm happy with 5-6psi safely.

 

I'm with you gq_model_626, hoping to use my e-manage for timing as well. I'm happy with 5.6 for now, but will up the boost later when timing solution is implemented.

 

This is kinda off the subject, but it is an important question to me related the TT kit. What will this kit do to the resale value of our cars? I would guess it would drop it pretty good, but I just wanted you guy's thoughts on this.

 

I think it would drop it.