Hey everyone. I'm new to Scion life...looks like a good forum. I've been building my tC for some time now. I have the TRD supercharger, intercooled pulling between 315-335whp depending on my fuel setup. I'm using the AEM fuel ignition controller, which is pretty easy to use, and i must say it's better than eManage. I encountered a lot of problems with the piggy back system initially. After multiple trial and error session, dyno runs and street tuning, i discovered that the TRD flash conflicts with piggy back systems. It doesn't allow the car to come out of closed loop, keeping fuel lean at 14.7 (3.27V) after 3K on the RPM band. It runs fine under vacum, but once you're in boost, and pass 3K, the car shuts down and stays in closed loop while in boost, which sucks. What sucks even more, and stupid really, is that once you flash your stock ECU with TRD, you cannot go back. I had to buy another ECU ($175) from a junk yard. And now the system works great.

Just letting everyone now, be sure you are intending on just running the TRD charger the way it is and not modifying it, cause once you do, you can't go back to the stock calibration of your ECU, otherwise you have to replace your ECU to start modifying.

If anyone has any question, or if opinioins differ, i have talked with toyota and TRD directly, and they are in agreement with me. If anyone needs help tuning AEM, let me know, i'm very familiar with it now.

I work @ Obsession Motrosports in rockville MD. www.obsessionmotorsports.com. Let me know if you have anyother questions on modyfying your tC. I've done everything you could possibly do, except body kit and paint (coming soon though).

 

definetly dont have 300+WHP but thanks for the info

 

i'll post my dyno results, don't have a PDF convertor on my Mac

 

the ECU can be flashed back FYI

 

Your making 300+whp on 9.5psi? I find that hard to believe, but i wont say your lieing. Can you post pics of your setup and arent you losing psi the the fmic too?

 

Post pics of said FMIC> You dont have 300whp though noob cakes. If you really do have a FMIC then your running around 7-7.5 psi. Maybe 220-230 at most. And thats a really big maybe.

 

i'll post the pics. The stock ECU cannot be flashed back, i don't know who said you can. Got that info directly from toyota and TRD. Not to mention every toyota scion technician who knows there stuff.

I did lose around 1.5 psi, so i have around 10.5lbs of boost, which makes well over 300whp. I'll have my dyno proof once i get it from my shop shortly. and I'll post pics of my setup. I made an error on my description for my pulley, it's 12lb pulley from NST. I don't know how to go back and make correction to my signature.

 

Its been posted on here quite a few times about that. As for your 300whp I still call BS. At 10-10.5 psi your not sitting near 300. SRY.

 

hey im in germantown, i may have to stop by and check out obsession, ive never heard of it nor seen your shop!!! i wanna check this tc out!

 

yup reflash back to stock is not new and has been done.. there's like 1 or 2 that hit 300 mark on s/c and thats with heavy mods not just the tune and IC.. you asked trd/toyota and thats what they say

 

x2

 

why is every one so quick to hate? give him a chance bashing him wont make your pp bigger

 

I beg to differ. Mine just grew 2 inches.


Its only bashing because its so freaking unrealistic.

 

a sc could get there on 10 pounds with some water meth to and some good tuning its not unrealistic when i post my dyno graphs people wont trust it either lol i was on 7.5 pounds posting some rather large numbers

 

Im not doubting its doable, but with the mods he claims he has he isn't going to be hitting those numbers. he doesnt say anything about meth, but im sure he will chime in in a second talking about how he has it and forgot to add it to his signature. We will see though. Post up the dyno chart and let the numbers do the talking.

 

I am not gonna call BS but with those mods only its hard to believe. Please post the dynos and all your engine/power mods. You gotta have more done like meth or cams to get to that whp on our superchargers.

 

tsk tsk

 

meth injection i don't have. i can understand everyone's skepticism, but the charts you will see. they'll be from a superflow dyno (the best and most realistic dynamometer) with the shop logo so you don't have to second guess. I'm not trying to step on any toes, but horse power on this motor is very easy to find in little places. first of all, colder air = more power. So the numbers i'm suggesting, and have tested are very doable. there's a guy on youtube with a s/c setup doing 311whp with just a good tune probably and a good amount of boost. why is it so unbelievable to have a s/c make this much power? boost is boost isn't it, turbo or s/c. I'll have pics up soon along with dyno runs.

 

wow a local. I have a TRD S/C whos car did u work on ?

 

Um no. The guy on youtube has a cam and meth. It is and it isn't. Its the way it builds boost. E-mail me the dyno charts and Ill post them. Some-how though your response of I dont have a PDF converter on my mac seems like a cop out answer. I have a mac too, and guess what Its got a PDF converter built in. Sooooo yeah....