hey guy so i just purchased an ap1 greddy bolt on turbo kit but i have an 05 ap2 . reason i purchased the ap1 kit was i got it at a great price brand new in the box . so i need help converting the kit to ap2 . so far i converted the harness already using the greddy thread but i cant figure out how to upload the ap2 basemap to the emanage . greddy emailed me the ap2 basemap , now what do i do ? also how will the car run with just the basemap and not tuned . cuz i wanna ride un tuned for a while to save some money to get it tuned . also i heard the emanage sux from a local tuner , they told me that the oem ecu starts the learn the emanage after a while n the car starts to run bad and that i have to get it tuned often n that a standalone is the best option . what you guys think is that true ? i called greddy n they said they never heard of such a thing . this is my first time boosting a car , and my s2k is completely stock , help me out guys. can i run the kit with just a test pipe and no catback ? also do i need to change head gasket or anything ? i aint gonna be pushing to much power . i dont want anymore than 350whp. so what you guys think . please help me out .

thanks, chris

 

The longer you run un-tuned, the longer you risk damaging your engine. I ran a Greddy for 8 months on the base map. It drove fine, but the tops of my pistons are now pitted.

Some people love the E-manage. Many people don't. The ECU can "learn" over time, so you might need to go back for a re-tune to make sure it hasn't wandered away from the initial tune. A standalone like AEM replaces the OEM ECU, so you wouldn't have this problem. Also, not all tuners are good at tuning the E-manage.

Regardless of ECU, you should get a wideband O2 sensor and monitor it to see what your AFR's do. With the E-manage, it'll also allow you to notice if/when the ECU makes adjustments that aren't what your tuner intended.

Greddy kits are known to boost creep if you don't have the stock exhaust. A test pipe will likely cause this. If you boost creep, then the turbo is functioning differently than Greddy had planned for in their base map tune, which means you're already operating outside the intended tune.

I would:
- Drive it no more than a couple weeks on the base map, and try not to boost much.
- Leave the exhaust stock until you're ready to get tuned.
- Swap in the test pipe just before your tune appointment.
- Install a wideband because you'll need that for tuning, and to monitor your AFR's.
- Make sure the battery has been connected for 2 weeks prior to your tuning appointment, so the ECU can learn fuel trims.

Of course, I myself did exactly none of those things... But you asked.

 

thanks so much torque . but u said i do have to re tune once in a while cuz it will learn. how often do i have to retune ? i am gonna be switching to stand alone . i just want it running for now already lol

 

You'd only have to re-tune if you were using the E-manage and if you noticed your AFR's getting out of whack. This might not happen, and if it did happen, it should only happen once. Some tuners are willing to spend extra time on the first tune to set it up well enough that this doesn't happen, but most will just do a few WOT pulls on the dyno and call it done. There are some other threads in this forum that talk about this, sorry I'm not sure if I have links to them...

To upload the AP2 map to the EMU, you'll need the cable that connects to your laptop and you'll need the software (which I think you can download from Greddy's site). You could run the AP1 base map if you're just driving to your tuner and staying out of boost, but I wouldn't try driving around like that for more than a short distance.