Just a question for the tC's out there who got a turbo with the auto tranny.

1. How'd you like the outcome?

2. Any problems?

3. Was it worth it?


I'm thinkin about trading my auto 06 for an 07 manual. Not REALLY sold on shifting again, but I'm thinkin b/c of how much tuning and modifying I want to do, it would be a better decision.

I'll let you guys have the floor.

 

there is a sticky for this, but i'd like to see these questions answered as well, so mods, please dont lock this!!!

 

^^I second that

 

turboing a auto, who does that pshhhh





I kid, I LOVE MY AUTO TURBO

 

autos are for losers


actually i hate launching against autos at the track

 

An auto never has to worry about missing a gear or mishifting like a manual does... No drivers error to worry about, only leaves it all up to the engine and tranny.. So if they are fully built..see yeahhhhhh......

 

pssshhhh.... I have NEVER missed a shift..............

 

1. How'd you like the outcome? I LOVE IT

2. Any problems? After the install and tune, it's been running good. I have about 5k miles since the turbo has been installed, it's my daily driver, plus I took it on a 2000 mile road trip.

3. Was it worth it? Absolutely

The thing is... make sure you do it right. Get gauges to monitor what is going on with your car. Get the tranny cooler. Tune the car. No matter if it's auto or manual, you will have to be prepared to take good care of your car and pay attention to what is going on with it.

Personally, I don't want to deal with the shifting in my 80 miles of daily commuting in the So Cal traffic, so I went auto. But the power gain is noticeable with the turbo, and man is it fun.

 

P.S. just so everyone knows i'm kidding around about the autos, they definitely have their perks

 

Auto's with boost are FUN!

I installed the BOV a couple of weeks ago. Latter had some issues with apparent power loss and loading inbetween gears -but that was traced to the snap-ring on the BOV that was not fully seated. Basically I had a small boost leak. After fixing the boost leak. I took the car on a quick road trip and it was a total blast! The Auto's longer gearing gives the car has a nice punch on the highway cause the boost comes on instantly zero lag.

The bad news is that after the ECU adjusted for the BOV w/ no boost leak. It's leaning out in part-throttle before I go into open loop. It has been very difficult to address this with emanage-blue. I'm working all the angles even using the acceleration map to see if I can add fuel consistently as the car transitions from closed-loop to open-loop (This is roughly 3500 RPM).

I will continue to work on this -I will not give up.

 

Even with nitrous my auto is a blast! I could imagine its a whole lot better with turbo. I plan on eventually running some boost.

 

Thanks for the feedback. I know they had this topic asa sticky, but it kinda went left and everybody got off topic. I've heard autos performed a lil better b/c of how long they stay in the powerband. I guess that's why he hates racing them

 

I was being very very sarcastic Hence the face aftwerwards, and hence me clarifying with everyone telling them I'm just kidding, hence me admitting they have their advantages at the track and hence me saying AND I QUOTE "autos definitely have their perks"!

So why don't you get over yourself and learn to read???

 

It was a joke too.


Sorry if you took offense.

 

now i feel like the **** lol... you're gonna make me go back and edit it lol

 

Definitely keep us posted Eric. I am very interested in what you find out to help control the close loop transition. As I am going to try and learn to do some tuning after I install my kit this weekend. Eric are you using a pressure sensor with your emanage?

 

thanks for that, i have an auto and i am looking into getting a turbo. yea tell us if anything else is going on with it

 

I'm not using a pressure sensor I already have a map sensor I can wire it to emanage when ever I want. But it won't make any difference. I already know at what RPM's and MAF voltages look like under boost -So I have no problem "seeing" where the boost is when looking at my fuel maps. The issues is the ZPI turbine kicks into over-drive so fast that the car is boosting in closed-loop mode. This makes tunning the transition very tricky cause the ECU just adjusts the injector duty cycle to eliminate my adjustments -It's kicking my butt in a major way! I got no issues when I stomp on the throttle A/F are under my control. It's the partial throttle that's got me scratching my head. Curves looked fine last week and even on my road-trip this weekend car ran great. The maps have been acting up lattetly

I'm going to open the can of whoop ___ on the tC ECU -What a pain in the ___ it has been to tune the car!!! I've already lost track of how many tweaks I've made probably on my 30th tune right now.

I pulled the negative terminal on the battery to reset the ECU and the learnt fuel curves -and I'm going back to my base map before the BOV was installed. You know every time I ease up on the throttle the BOV vents and the A/F go stupid rich, then they lean out to air. This must be confussing the ECU in some way. I need to do more data-logging to figure out what the hell it's doing.

 

I remember either Dezod or Zpi mention on a post that tuning with a pressure sensor is supposed to help tune partial throttle. So that the emanage will +/- fuel base on boost instead of tps/rpm.

 

It's really the same thing instead of reading maf votage you read pressure voltage . The way it works is you cannot achieve certain MAF voltages at certain RPM's if you are not pushing air into the engine. When you add fuel you really match the fuel to the amount of air going into the engine which is what the MAF is reading (mass flow of air going into the engine corrected for temperature and altitude)

At 3500 RPM's I can get 6 PSI of boost at 30% throttle or at 100% throttle If I tune off boost pressure I will not be able to make any clear distinction between the two. If you read the MAF voltage then you will know exactly how much more fuel you need to add.

If you up the boost past 8PSI then you maxx out the MAF sensor this means you will no longer be able to measure the increased mass flow of air going into the engine. This is when tuning off boost pressure comes into play.