cruser

Alright, this may be a little long.

Current mods:

Streetport
1200cc secondaries
fuel pump
T04s
smic
dp
mp
exhaust
HKS Twin Power
Power FC

I have now have about 2k miles on the engine since the rebuild. That entire time I was just running off of the base maps of the Power FC so I NEVER got into the boost. I have had the engine up to about 4k rpm just a couple of times. Was always too afraid to go any higher with the base maps. I finally sent my ecu to XS to be reprogrammed and will be getting in back in the next couple of days. Of course I now want to see what the whole single turbo buzz is about, but honestly I am a little afraid to. I know how much $$$$ I have put into this car in the past few months and don't want to go out in a blaze of smoke. If anyone could please give me advice on the correct and safe way to ease my engine into the upper rpm range and the boost I would greatly appreciate it. It is going to be so hard not to just go WOT immediately.

On a seperate note.....I have an AVC-R, but it is not fully installed yet. When I do spool the turbo up, will it just start spooling and the boost keep on going up and up or how will it work?? XS is setting my ecu up for 1 bar, but I don't believe the Power FC will be able to control it. I am correct or is this just a stupid question?

TIA,

Ryan

Silver93T

Get it dyno tuned with a wideband 02 sensor. Every car is different, and it is the only way to know you are truly safe. Not to knock XS, but my friend send his fc to them for programing. When he got it back it seamed to run ok. He then took it to KDR for some tuning with the new Datalogit, and Dave found the timing maps to be way to advanced, enough that the motor could blow. 2k miles is plenty for break in. Change the oil and filter, get it tuned, and have fun with it. Not sure about the avcr question, but if its like any other boost controller than it should limit boost to whatever you set it at. The power FC can read up to 2 bar with the stock sensor. I run 16 psi on mine.

cruser

Silver93TT- thanks for the info. I would love to get it dyno tuned, but the nearest place is hours away. Maybe I will just wait a little.....I don't know it will be rough.

On the AVC-R question, I understand that it will control my boost, but it isn't fully installed yet, i.e. I currently have no boost controller. And was wondering if I need to keep an eye on the turbo gauge due to it just keep boosting and boosting to sky is the limit. I am not wording this right at all. My thoughts aren't turning into words well.

Thanks again for your and any other advice that may follow.

Ryan

AJatx

iTrader: (1)

Definitely agree with Silver on getting it tuned with a wideband sensor. A dyno is a safer place than the street, but nonetheless, make sure there is a way to datalog your run with a wideband O2 sensor.

If you don't have the boost controller fully on-line, most likely your wastegate will release pressure at the pre-determined spring pressure. So, if your wastegate has a 10psi spring in it, it will release the exhaust energy at 10psi if the boost controller is OFF.

The boost controller ONLY keeps the wastegate shut and modulates the spring when it reaches the desired boost.

XS probably programmed their generic fuel/ignition maps to support 1 bar of boost. However, I would (again) tune it on a wideband to make sure.

Good luck!

J

cruser

That is exactly the answer I needed for the turbo, thank you!!

I agree I need to get the thing on a dyno, damn I wanna get my foot in that ******!!

Ryan

twokrx7

iTrader: (1)

Until you get your boost controller fully installed, make sure you have a pressure line going from the outlet of the turbo to the lower/side tap on your wastegate. The wg top tap should be open to atmosphere. This will result in your boost being limited to spring pressure. If you have an HKS wg, the spring setting may be stamped on the top of the wg in bar.

AJatx

iTrader: (1)

thanks for adding that twokrx7.

Need to make sure the top tap is breathing to the atmosphere.

You should still keep an eye on the boost gauge. I'm not sure what wastegate you have, but (depending on environmental conditions) you may see boost creep.

J

cruser

Its the HKS racing wg that came with the T04s kit. I am not sure what the spring is. I will probably just wait to really get into until I have the AVC-R installed.