Maybe there should be a FAQ sticky. Anyway here goes.

I know the new TRD sc is going to be centrifugal as opposed to their previous offerings that appear to be roots style. I also understand that an intercooler will not be part of the 'stock' configuration. I don't see how it could be for the intended price-point that they are trying to hit. It would be silly for them not to offer one as an upgrade though, as every FATF watching kid is gonna want a huge front-mount with a loud BOV... but I digress. My question is does anybody know wtf the following quote means. It is from the TRD website regarding their sc for the matrix.

Does this mean the ECU upgrade is a piggyback? Supplemental implies a secondary. I think piggybacks are a pretty half-___ way of fixing the fuel and timing curves. The second part about supplemental injectors. Is the 'intercooling effect' that they are talking about simply dumping more fuel into the cylinders? That's kind of what it sounds like. (It does provide a cooling effect, but I would hardly consider it "Intercooling"!) I wonder if the tC is going to require upgraded (or additional?) injectors. I know the aftermarket TURBO kit that everyone is talking about has some sort of fuel solution, but they aren't very forthcoming with the details (which is not a good way to sell turbo kits BTW). Probably injectors and an in-line fuel pump. I'm sure the stock SC will handle a significant amount of boost assuming it is properly cooled and fueled.

Any thoughts?

 

The ECU upgrade is supposed to be a flash upgrade. I was told that that is one of the issues they are working out, which is holding the release. They are working out bugs in the flash version they are using. I am not sure why they would call bigger injectors an "intercooler effect".

From what I have been told by Scion, the SC will provide 5-6 PSI of boost and will include the flash upgrade to the ECU as well as larger injectors. Should be somewhere between $2700 and $3000. That is all I have been told so far. Hope this helps.

 

Well I am asusming that larger injectors will be used, and that our fuel pump is already ready for the s/c. And I wish they offered an intercooler option for the car, but we have that bottom grill with optional fog lights in it that doesnt let much air pass by........... I'll be happy with a nice stock TRD setup

 

Supplemental injectors means there aare added injectors in the intake manifold. This will add more fuel meaning it would not be necessary to get larger injectors (possible) You may still need larger injectors, but that should take away the need for supplemental injectors.. Hope this helps you out a little bit.

 

I thought u cant add a BOV to a SC...

 

you can

 

If thats what they're really saying, I'm disappointed. Piggyback engine management, ghetto "intercooling effect," additional injectors instead of improving whats already there...

Fortunately one of the fliers they handed out at the NAIAS had a picture of the kit, complete with four injectors. I doubt they'd add four to the four already there, so I think it's a safe bet they'll be replacing the stock ones with improved units.

 

intercooling effect is just a stupid way to say they are gonna make the car run rich as hell

 

ajnast4r, that's pretty much what I expected. When I hear "intercooler effect" I was hoping for something cool and hi-tech like water vapor injection, but at the price I, too, figure that "intercooling-effect" meant "dumping a whole ton of extra fuel to keep the cylinders from getting too hot".

I've heard it bandied about that the sc offered is going to be a vortech product. Are the other TRD sc's vortech products?

 

Yes, the tC TRD SC will include a piggyback ECU (instead of the flash that was originally proposed) and will also includ the extra fuel injector. Additional "staged" upgrade may be available in the future, including intercoolers and BOVs.

 

It is the same as the TRD Supercharger ECU for the Corolla and Matrix. It is a new replacement ECU that has different fuel maps to richen up the A/F mixture so you can run higher boost without leaning out. It is not rocket science. The supercharger for the TC doesn't come with a 5th injector like the others it comes with a whole new set of injectors that are bigger.

 

Supawhite, the matrix and corolla supercharger kits come with a "replacment" ECU and not a piggyback ECU? The TRD site says a "supplimental" ECU. To me that implies a piggyback unit.

Whereas a reflash would load completly new fuel/timing maps into the stock ECU, a piggyback unit typlically sits in between the ECU and the sensors and modifies the signals to provide the appropriate changes.

Unichip is an example of a piggyback that works with toyotas, for example.

 

as we have already seen supawhite doesn't know much since hes the one that did the "budget exhaust" on his car oh yeah but its not rocketscience.

 

I'm not doubting your info, just wondering what source you heard it from, as it is almost opposite from what scion told me. I was told that the reason for the delay in release was to work out bugs in the flash download. I also heard that they are replacing all of the injectors. Again, not doubting you, just wondering if you had a better source of info than me. Thanks.

 

i love hearsay. i have some more.

i seem to recall when TRD was at my dealership a few months ago that:

the delay was caused by emissions testings. the initial 40hp increase was changed to 80ish and more testing had to me done. he mentioned the cpu being flashed, due to the fact that this is the first time in toyota history that the engineers in japan have released the engine codes (even to TRD) so that optimum air/fuel curves could be determined. and bigger injectors, not extra ones.

 

Quite true. Toyota Corp. has never released ANY specific engine fuel mapping or other measurement specs for public (or even internal) use UNLESS it's absolutely necessary for repairs (.001% chance of it being needed haha).

I've seen one of the prototype superchargers in person... some guy in Ventura stole it and I went to check it out (buy it!!) and saw hoses cut and stuff... so I contacted TRD before any of the 2AZ supercharger announcements were made and they said "Yes, we have a prototype and WHO THE HELL HAS THAT ONE?!" but this was quite a while ago... I think a year and a half now... (Oct 03ish, pre tC announcement, I have a 2AZ Solara). It is centrifugal for sure (check out the RIPP S/C for the 5S-FE, looks like that)

From what I read in technical articles, the SC specs (quoted exactly as found in the technical article, as of 10/19/2004):

-------------

TRD supercharger (late introduction)
a. power target = 200 Hp @ 5 psi
b. compant, efficient, quiet Vortech scroll compressor
c. pumps up "off the line" torque out put for max driving fun
d. unique packaging and installation, drive by jack-shaft
1) designed for ease of dealer installation
2) warranty = factory engine warranty
e. integrates with factory engine management:
most sophisticated OEM supercharger system developed by TRD
1) includes new fuel injectors
2) "piggy back" ECU
3) previous TRD production systems:
1MZ-FE (Camry/Solara)
3VZ-FE (Tacoma, Tundra, pre-03 4Runner)
2UZ-FE (Tundra, Sequoia, LC-100)

----------

I'll look for any updated articles when I have extra time today.

 

i hope you really can put a bov on a sc because that would be awesome and i would get the sc as soon as i get the money (or as soon as it comes out lol which ever comes 1st)(well if i had the money first that means i would still have to wait lol )

 

whats the point of having a BOV on an sc? besides the sound of pssssshhhh,

 

seriously, it sounds like hes buying the SC for the sound of the BOV, and not the added power.

 

ya but that wouldnt make any sense, y spend about 4g one a sc to get the BOV, when you could get a turbo kit for alot cheaper just run it at like 3 psi, that will prob make more power than the SC,