Stage 3+ questions RS2?

[AudiI5UrS4]

Hi all I have a couple more performance questions, I have been doing a lot of research but coming up with some conflictions. 1.)My sidemount that I have been having problems with getting VERY heatsoaked but i've read a lot of posts where practically everyone goes to this stage 3 RS2 on the stock smic and keeps the smic...is there something I am missing..but my question is I want to put a fmic on and if anyone has a good way of routing the piping? 2.)All I need to complete the stage 3 RS2 upgrade is the injectors and the tune but I keep finding that they ADU injectors are bigger but then I have found a couple different spread sheets showing the the ANN and ADU @ 3 bar flow the same as below in the spreadsheet: Obviously ANN 0-280-150-984 ADU 0-280-150-951 http://users.erols.com/srweiss/tableifc.htm But then I see this below also? AAN injectors Run at 4.0 bar FPR in S4/S6 Bosch 0 280 150 951 Audi 034 906 031B 280 cc/ min @ 3.0 bar 315 cc/ min @ 3.8 bar 323 cc/ min @ 4.0 bar 361 cc/ min @ 5.0 bar ADU (RS2) Injectors Run at 3.8 bar FPR in RS2 Bosch 0 280 150 984 Audi 034 906 031F Porsche ? 360 cc/ min @ 3.0 bar 405 cc/ min @ 3.8 bar 416 cc/ min @ 4.0 bar 465 cc/ min @ 5.0 bar 3.)I have been trying to repeatedly get a hold of Steve Eiche at Shadetree Software (which I found out with the help of UrS4boy is my tuning company) with no luck. I am thinking I want to end up putting on a 3076 on but want to talk about cost of tuning but for the mean while just to get the stage 3+ tune put on or will the ecu be able to adapt to the new fuel tables or must it be told by the chips? But I wanna gain maximum hp/tq of course so should I just repay for a different company or...? Again thanks for all help, you guys are great!

[UrS4boy]

1. While you can go RS2 with the SMIC, it isn't a good idea. There are lots of FMIC DIYs out there. If you want quality buy the Apikol kit.

2. Injectors are rated by their flow at 3.0 Bar (where 1 Bar = 14.5 psi). So stock AAN (not ANN) injectors at 280 cc/ min @ 3.0 Bar are considerably smaller than the ADU (RS2) injectors at 360 cc/ min @ 3.0 Bar. 034 has some RS2 "replica" injectors that can work (they are actually GM supercharged 3.8L V6 injectors, e.g. a Pontiac SST or the like, if you can find them at an autowreckers).

3. Going to a 3076 will require a larger fuel pump as well as the larger injectors and will likely require a custom, i.e. on a dyno, at $$$/hr. Better to go with one of 034 hybrid turbos and their associated software.

4. You never said (or I forgot), but you should replace the OE exhaust manifold if you go to even the RS2 turbo, let alone something larger. Stay away from welded steel. Go for a cast OE RS2, RS2 clone (not really my recommendation but probably better than the stock EM) or a Wagner Engineering RS2 EVO exhaust manifold (my recommendation.

5. If you don't have a 3.0 Bar MAP sensor in the ECU, you need one or a VMAP from Moreboost.

[scarman]

You appear to have the misconception that upgrading the ECU software is done at no cost by all the tuning companies. Joe Hoppen used to do this for the MTM upgrades he sold, but I know of no others that had this offer.
You might get a price break over the published prices by dealing with the same tuner, but I doubt anyone will do it for free. Each change you make in the software will incur a charge with any I know of.

The ECU chips will not "adapt" for any hardware changes, so you should settle on the hardware first and then have the corresponding chips installed. You might shop various tuners for the availability of off-the-shelf chip sets for a particular hardware setup you plan to use. Otherwise, you may be left to use a chip set designed for a different turbo setup that "should work just fine", or pay for a custom tune on the vehicle.

[AudiI5UrS4]

Again thanks for the great info, I ordered the 034 fmic so thats on its way. That info on the injectors is interesting as well I might go try and find a grand prix or something.

Also UrS4boy I do have a cast RS2 manifold and the 3 bar map sensor with my stage 1 tune from shadetree...and I do know it costs upgrading from my stg 1 to stg 3 but I can't get any support from this shadetree place because I would like to only have to pay the difference on the stg 1 to 3 vs having to pay for a whole new stg 3 from mtm or somebody hopefully I make sense.