my friend told me about this thing called a "sprintbooster" made by some Germany company that modifies the signals from the accelerator and gives the throttle the altered signal so it can respond faster. here is the link I found on another forum
http://www.crossfireforum.org/forum/...ad.php?t=11277

there's a link inside to the company. From a google search, I see that they make them for toyota: http://www.sprintbooster.it/doc/spri..._07_07_eng.pdf

just don't have Scion TC on there. but IF AND ONLY IF... one of those toyota's on the list uses the same parts as the one on the TC, we might just be able to make this work

 

well 99.999999999% of the "Delay" is due to high rotational mass. Ask those with a light flywheel and they will tell you that the "Delay" is gone.

And I would LOVE to see how that works. The only delay (if it existed) between the pedal and throttle would be processing delay. Now, you tell me how that little box reads you mind and tells the ECU to respond before you press the pedal and I will be all for it Because that would be what would have to happen. The ECU's programming would have to be optimized to reduce delay or the ECU would have to be clocked faster.

 

^^^hey man that 00.000000001% of delay needs to go too.

no joke. i feel it. at the stop light ftw.

haha. this sounds like a joke. if throttle delay was a real problem wouldn't toyota have fixed it already?

i mean they are engineers for a reason.. i dunno. i personally think they are a bit more educated than you and me but thats my opinion...

 

Partly disagree with you b/c a/t are that 0.000000001% that don't have a delay from the rotational mass. Say if I'm cruising and stomp on the pedal til its on the floor the car takes, literally, like a second before it decides to downshift 1-2gears and bring the motor up to full potential. You manual guys can dump the clutch and your delay would be the mass. Now the computing delay...no way around that. There's a thread on here about putting some sticky-backed felt on the bumpstop for the gas pedal so the electric peizometer or w/e the hell he said it was, would register it as being more than zero and the delay disappear but after a few cycles the ECU "learned" what had happened and re-zeroed that meter so the delay came back. Why must Toyo put so much AI in our cars? Its not like it should be a robot really.

 

d@mn it AEN stop following me

 

stop saying the same thing as me .\

what hte hell.

and i posted before you too!
gahh!.

 

The shifting delay is an automatic transmission curse some are better than others, but that is not really what he is aiming at from what I read above. I agree, the auto tC takes its precious time downshifting as do most automatic cars do. If you want to get really frustrated about it do as I did. I got a Mazda 6 as a rental for a week long business trip. Had the bump shift for the auto so I figured it would at least be somewhat fun. Wind it up... bump the shifter... eat a sandwhich, drink a beer and maybe take a nap and it may decide to shift Basically still a plain old auto with a different shifter. Not quite what you would find on a supercar or anything :D

 

sounds like the best way to eliminate the throttle delay in the automatics is to swap to a manual. lol.

but throttle delay is a characteristic of auto's isn't it? you hit the gas, and after a delay, it engages the appropriate gear and starts moving?

 

from what i read the stock signal it sends to the ECU is a voltage that rises exponentially. so it starts out slow in the beginning to give you a smoother acceleration for people with a heavy foot. the sprintbooster turns this signal into a linear rise in voltage.

this issue has been a major complaint with many other cars of different makers, not just toyota. obviously if this many customers complain, it is a problem. just because they made a car a certain way doesnt mean it was meant to be or for the better. so are you gonna compile and agree with everything BUSH saids because's he's the president of the US? i don't think so, and same goes for car manufacturers.

 

The device sounds interesting but I think there is another avenue to explore first. If you want to do some real research, find out why the throttle response on an 04 Rav4 is so much better than on the tC with the same engine.

 

no tek, I am basing my info off of every person I have ever talked to with a lightweight flywheel on the tC, plus the fact that if there is a "delay" in the ECU's response, nothing you do to input voltage will make one iota of difference (That is based off my background in electronics engineering).

It is also my understanding, from someone who dug into it a long time ago (dont ask me which user.. it has been 2 years or so I think) that they used a standard set of potentiometers which are fairly linear to begin with, so this would do nothing in that case. And if it were designed as you say, I would have to question that operation, the "fix" and reasoning why any engineer would do it that way to begin with. The abosolute simplest and most reliable way is to do all the "delay" or buffering inside the ECU, which from what I hear about hondas is exactly the case. I dont see why anyone in their right mind would try to buffer the throttle response using a passive device. And if you did design it that way, it would not cause a delay like people are describing in this case without added interruption by the ecu.

We do know that the flywheel is heavy, and that means that the engine will not rev up as quickly as you may expect if you come from an engine with a lighter flywheel

I am not saying that the drive by wire sytem is the best. I beleive in simplicity over all, so personally if I were designing it I would go with a cable. But, I do question how some of the "solutions" fix anything. I believe in being skeptical first and analyzing before just buying a new gadget, since 99% of them dont deliver as promised these days.


But obviously you want to hear "wow, this will fix everything!" anyway, so just go buy it and dont ask for peoples opinions.

 

And reading up on this a bit more myself... I would never buy it. It basically just creates a jumpy pedal response for cars that have a slow response zone at the bottom of the band. So in a short geared car like the tC (or any car really.. just worse with short gears) you will make parking and slow driving a pain, and dangerous for those not used to it and learning to drive a stick shift. You are tricking the ECU into thinking it is going from zero throttle to a higher value all at once, giving it a "quick" feeling.

If it makes the car feel more responsive, that is great, but I would have to know a LOT more before I would waste money on one. And I would still expect slow revving, because that cannot be fixed with anything short of reducing rotating mass.

 

sure, he isn't the greatest president. and he sure is a dumbass
btu for some reason unbeknown'st to me im still alive in america
something must be going right
and last time i checked

toyota is doing pretty well.

we know that engineers leave room for error and we know that consumers complain

every.

single.

time.

they see potential for something to be easily fixed, yet we as consumers don't look at the consequences.

maybe they know something we don't know

I DUNNO kajbsdkajsd

maybe. -shrug.

or maybe they are a bunch of dumbasses that by pure blind luck managed to stay in hte bussiness for 63 years.

thats three of me

and a three year old.

cuz im twenty right now


tell me this. do you think, a company as smart as toyota, to have manufactured as many awsome vehicles as them..consumer, sporty, and whatever...hell even nascar. do you think they would hear

"throttle response on our car is teh ___!!" and ignore it?

they have a reason. and if they dont'. then they have an external factor they can't fix it.

 

Interesting that this came up today... Check out this article on Winding Road: Drive-by-Wire Gone DIY: The Sprint Booster

 

didnt say anything about them testing it though
they are just informing the public after visiting the website

 

Right but I would consider Winding Road a pretty reputable source and if they thought that there is no way it would work I don't think they would want to perpetuate bad information.