well i was driving and realized that there isn't much difference between half and full thorttle. why is this? is this cuz our comparission is so low? just wondering

 

1-we never actually reach "full/wide open throttle". toyota makes the motor/throttle body so that "full throttle" on the pedal is actually only opening the butterfly valve 75-85%.

2. pretty sure our dbw system has at least a low and hi throttle (possibly even a partial/half) setting. it uses this reading to determine the valve timing (vvti) among other things. it could be that when you are in what you think is "half throttle" it may actually be "full throttle" according the the ecu, therefore when you floor it the rest of the way, there wouldn't be that much of a change in the throttle body butterfly valve opening.

3-not sure what u mean by "our comparison is so low".

do you have an aftermarket intake or stock? if stock, the system is pretty restrictive, this could also account for the lack of a big difference.

 

Or it could be that the tC has only 160 HP.... Just my guess.

 

thats always been what i thought.

 

i got a solution for u. S/c or turbo it.

 

Not sure what you mean, there is plenty of difference in half and full throttle, but if you cruising along and stomp it to the floor, it isnt just going to pull like hell. It is a 160HP car. That isnt too bad for what it is, but not enough to pin you in your seat when going from mid rpm to full throttle. Not enough tq in the lower part of the band for that.

And the stock intake isnt that restrictive. A CAI does absolutely nothing on this car.

 

^^Ehh, it sounds cool.

 

Yea turbo it and you will feel what you want. Mine throws you in the seat who wants a ride.

 

one thing i can easily say is the tc's throttle response is NOWHERE near "Crisp". In fact i would call it rather sluggish.

its a very indirect correlation between when you blip the throttle and when the revs actually jump. and even when they do rise, its a very labored/slow move. not a high strung rev like i would imagine the Si is. very....Camry-ish. haha.

 

Its called a heavy flywheel. Swap it to a fidanza if you want to improve throttle response.

 

so how much $$$ do you and lo bux racer (aka. lance) get from Fidanza for the gratitous advertising/marketing???

but seriously, i've heard that over and over again. i don't have the resources/abililty to just go drop the motor and put a new flywheel in. when/if i replace my clutch, i'd probably do the fidanza too.

but thats irrelevant. I paid $17K for a car. I shouldn't have to pay an additional 400+ to get a properly matched flywheel in there. The fact that the car stock, as is, has terrible throttle response is my gripe.

 

It doesnt have a badly matched flywheel. They went with a heavier unit to make taking off easier (they marketed this to young drivers... aka less experienced drivers on a 5 spd) not for racing it. People see to forget this is in no way a sports car. But even considering that, it really isnt bad. I can rev match, heel toe, etc just fine on this car. A quicker response would be nice for heel toe IMO, but it is not anywhere near unmanagable.

And I menion fidanza becuase they are a good name in the field. I am running a stock flywheel. You could go with any lightweight flywheel, but just make sure you get it from a good company.

 

Fidanza I have it love. I wouldnt recomend any other but fidanza.

 

How often do you go full-throttle anywayz for it to be such a bother? I dont ever go to it myself, so i wouldnt know..

 

Its not just that its only 160hp, but its over 2900 lbs. Its all about the hp/weight ratio. My ZO6 is less than 3100lbs and has 600hp......

 

OHOHOH I WANT A RIDE.

 

IMO it does. if everyone who has a fidanza says it makes such a huge difference, and gets the throttle response to feel closer to what you would expect it to be, then i would say that yes, the flywheel is/was poorly chosen by the factory.

1) so, did you ask Scion this?? or are you just assuming based on your limitless knowledge of all things automotive?
2) so they made the flywheel heavier to make it easier to "take off", but not for racing...hmmm, this seems to be a bit of a contradictory statement to me. idk. and i still have trouble starting off in first as it is (despite nearly 3 years of driving the tc and 8+ years of driving manual transmissions)!


i am well aware that the tc is not a sports car. having driven an s2k, evo, supra, dsms, sti, etc... i am quite satisfied that the tc is not in the same category.

 

Again you sound a little sarcastic ("limitless knowledge, blah blah), which I will ignore and give you normal answer. I simply post from what I know or what I can figure out from what I already know. If you have supporting info the other direction, then feel free to discuss rather than being sarcastic about it. That just turns this into an argument and we all get sarcastic.

I was making an assumption on the flyhweel given the fact that launch/takeoff is one of the big reasons to run a heavier flywheel. Revs do not drop as fast with a heavier flywheel, thus launching is easier. I dont know why you have trouble taking off in the tC. But that really is beside the point. I find it easier than most cars if I really pay attention to it. For drag racing, the heavier flywheel benefits you. But when I say racing, I mean more than just running fast in a straight line. For road racing I would rather have a lighter flywheel to allow me to rev match and heel toe better coming into the corners. For drag racing (which I care little about) I would rather have a slightly heavier (than a fidanza) in order to hold rpm and transfer stored energy on launch.

But, for whatever reason, they chose the flywheel we have to suit the purposes they built the car for to begin with. I dont find it any different than what I would expect. I expect it to be built for easier takeoff and normal street driving. Again, if you have issues taking off, I think you would have more issue if you went with a lighter flywheel considering you lose momentum and have to use more throttle with one. I would guess your takeoff issue lies somewhere else. Not saying it isnt something about the car that is different from the other cars you have driven, but I dont see it being the flywheel.

 

That makes no sense. If everything was perfect from the factory, then aftermarket tuners wouldnt exist. And you wouldnt be able to afford the car.

It was perfectly choosen from the factory, FOR THE CAR IT IS.

This isnt a ferrari, its a 17,000 economy ride.

With your rationale, they did a horrible job choosing wheels ( alot of people change them), they did a horrible job with the intake, the exhuast, header, struts, springs, seats, system, dash lights, body, internals, suspension.......