also, when you reflash with the trd thing, isn't true that you can't go back to stock settings, if you decide to take off the s/c.....it happened to several of my friends, where they took their s/c off, and tried to reset th ecu overnight.....nothing happened, car sputtered, couldn't hold idle, didn't seem like it was getting the right amount fuel.....the remedy was having to buy a whole new ecm, which was easily over $700....

 

wow, you learn something new everyday. i didn't know that

 

Disconnecting your battery resets the ecu to its base programed state. If you have an s/c your base state is the TRD software. In order to get it back to the non-s/c setting it has to actually be reflashed/reprogramed with the Toyota software module otherwise everytime you disconnected your battery or it died you would have to completely reflash the ecu with the TRD module.
(btw, the TRD software module is in that small box they tell you to keep with your car at all times incase of major servicing)

Your boy got screwed if they told him he had to buy an new ecu.

 

well one of our friends in our car club works at a toyota dealer, and he said for an auto trd s/c reflash, there's no way of going back.....they tried reflashing back to stock settings, but the car still sputtered, and you'd have to hold the rpms at 3k for a while....this has happened to a few friends of mine, and nobody, not even 3 dealers had a resolution for it

 

well thanks you guys for all the comments. i think i'ma just spend it somewere else. i didn't want really anything to blow me away just a lil boost but it seems it would be more problem down the line

 

Really!? That doesn't seem right imo. The ecu is just a computer with installed software.


Then the s/c is perfect for you. ...there shouldn't be any problems down the line.

 

you need to do some research because that statement shows that dont know what you are talking about. A few people in this forum have gotten the SC TC to go 14.7 in the 1/4 stock, and very few cobalt owners get their stock ss to go 14.1, mostly do mid- high 14s with practice. Secondly, the SS makes about 215whp compared to the 185-190whp of the SC TC, it also has a better motor, better tranny, and better supercharger boosting 12psi compared to 7psi of the tc and it the SS comes with an optional LSD. Comparing them both I dont think we are doing too bad but i do agree that for the money I paid I feel I deserved a little more.

To whoever started this thread, do not waste your time with the SC, you are gonna want more power eventually, might as well go turbo from the start.

 

Well, good, now I know! As for the 215 hp, it is 205, idk where the 215 comes from, maybe from the packages that chevy offers to add hp on top of the s/c...."2.0 L supercharged Ecotec engine rated at 205 bhp (153kW)"...http://en.wikipedia.org/wiki/Chevrolet_Cobalt...
and this from the actual chevy site....205-hp 2.0L Supercharged engine.....

but yeah, i gu4ess the boost does make a difference, could you increase it somehow, I am a noob to cars, I used to never understand the bond, but now I do, forgive me if Im wrong.

What i meant about us having a better engine was that its a chevy, lol. Ours will last longer!

 

Whats this flash of the ecu, what does it do?

 

flashing the ecu is when you install the trd s/c, you need to flash the ecu with the trd reflash tool so it will run correctly with the S/C. and no IMO i think the S/C right now is worth it with the crazy drop in price. and remember its perfect for the DD that wants a little extra push with reliability

 

its called underrrating, a lot of automakers are doing this these days in order for the insurance companies to charge less. Cars normally have a 15% drivetrain loss, meaning that if an engine puts out 160hp you only get about 135 at the wheels. If you go to the cobalt forums you will read about stock cobalt ss putting out 215hp at the wheels which in more or less 260 at the motor. the SC TC is advertised to have 200 hp but is really putting out between 185-190 at the wheels, which is about 210-215 at the motor. Theres a lot more cars to which this is done to like the civic si and svt cobras, just to name a few.

 

Wow, so the tc's ratings are accurate. Thats insane, idk, i might get it, what are the limitation for adding on to a s/c, cuase i know the injen intake pumps 159 to the wheels on top of a stock tC, i was thinkning about gettin that, on top of s/c. And you said 135 whp, others say 143, Ima use 143 just cause its higher, but 143, 159 w/injen, plus s pipe, headers, have an exhaust and then a s/c, whats a good estimate of the max power if i get all the best equipment, this will be over time, my Dad is **** about the car he doesnt want me doing anything to it, but once im an architect, ima put a v6 in there, or a v8, wont fit, but ill extend the body if need to, lol.

So whats your 1/4 time, I see the 1/8 but im not used to seeing those times.

I am a daily driver, turbo's to me arre an ez way to obtain what I really want, but the s/c gives enough, and has warranty, im torn between the 2, cause a stage 0 zpi, 230whp is only 2195 and a s/c is 2130! So idk, but i dont have the mula to spend 2-3k on tuning and making sure my engine doesnt blow!

 

^^ hey you wont jump from 143 to 159 with an intake

 

yeah i re-read it and it said it had headers!!!! Bummer! heres the link though to see the results....157 not 159! my mistake

https://www.scionlife.com/forums/viewtopic.php?t=92108

 

first of all, its seems like you got the "speed" bug which everyone gets sooner or later.....my advice is that its seems like you want speed/power but have no idea about any of the machanics of it, etc. Why would you drop a v6 in this car, its just not suited for this, nor would it be an easy task...also, you don't spend 2-3k on tuning, that in fact is about $200....now if you're talking all about the accessories, then thats another story. also when you do go forced induction, you never do it with a light wallet, always need more money, regardless if you go s/c or turbo.....since you're only17, i would say enjoy the tC as a starter car, and wait till you're a little older, and get a better car with all that you want....thats why i got a 350Z

 

The big difference is that the boost from an s/c comes on progressively so it's not the kick in the pants that a turbo has. Example: A car having a 6k redline and 6psi boost will see results similar to 1k rpm=1psi, 2k rpm=2psi ... 6k=6psi since max boost isn't reached untill redline. Which is why a 9.5lb pulley can be used with the TRD AF map. You're really only adding 2.5lbs in very small incriments across the entire power band and very rarely ever hitting max boost. I was under whelmed with my s/c until I ran against my buddies Porsche Boxster (~225hp) and I hung pretty close to him for the most part.

 

The boost actually comes on slightly exponential (comes on stronger towards the top)... Those of you who aren't running boost gauges can verify this with sport compacts issure when they plotted the boost on a graph along with a couple dyno runs with the pulley, exhaust, header swap they did a while back.

Bottom line, the s/c lacks midrange with the centripetal style blower. Still a great deal for $2k.... You get a full kit with that money down to the littlest things like a lower thermostat and stuff to move around the battery ect. You're getting a lot more than a stage 0 turbo kit which lacks injectors, intercooler, computer ect... Please don't get me wrong, I'm in no way bashing a stage 0 kit... I'm just trying to point out the differences that some are over looking. When it comes to power, I bet a stage 0 will still pull on a 9.5psi s/c... Much better power curve, just my opinion

 

Yeah thats pretty much it, i want power and speed, but I dont want to give up my tC, amybe for the altima coupe but I just hate that the tC is a gorgeous car and has very little power! Compared to others in its range, I just wish the tC was the next supra. But yeah I do want speed and power, and nope Im new to this so I know very little bout this whole thing, but you gotta satrt somewhere lol.

 

yeah, i know what you mean, i wanted the tC to be a sports car, but in the end it just too much money to make it fast, reliable and handle like a sports car.....for a starter car, the tC offers great things for the price....but thats just it, you get what you pay for....to me, the tC was cheaply made, and always felt that way to me....the tC will never become the new supra for that price, honestly....you have to fork over the dollars if you want rwd, and a 6 cylinder 2 seater car, lol

 

Guys, you’re comparing $30k+ cars to a $17k tC….. Yeah, you can buy a true sports car in an STI for $35k or stick $10-15k into a tC make it way faster and just as reliable as a stock factory sports car. Not to mention how much more it will cost to mod a true sports car...... The tC will always be a sport couple no matter what you put into it.