i c, im just curious as to why some do and some don't.

 

well... having 6 short gears is just a bad idea...
the tC would sooner have its gear ratios changed before adding another gear.
But i think most of us would complain that the gear ratios were too long, instead of being too short, and would also compare it to the acceleration of an auto[which isnt a good thing]

So even though the 5speed does have some short gears, it benefits us when we are driving within the speed limit opposed to just cruising with traffic.

and on another hand.... the Si's last long gear would have been perfect... but then a whole new transmission would have to be built, and why would we want to replace something that has proven itself over time?

 

What are you talking about? Road racing has nothing to do with anything. I wish the RPM's were lower when I'm cruising on the highway. A 6th gear, even if it was "short" like the rest of them would be an improvement and a tall 6th like in the Civic would be perfect.

But given that most people refuse to pay the 650$ bucks for side airbags I can see why Toyota went with the 5 speed we have.

 

One word: Monospec

 

That has to be the dumbest thing Ive ever read. It has nothing to do with racing. It has to do with better mileage on the highway. How have a Corolla, Civic, and Sentra earned a 6th gear just by being around longer?

 

testing and development over the years. they desided to try somethin new. the tc isnt ment to be like those because of the focus group in mind. scion doesnt feel that the youngins need a 6th. its more like be happy u can afford this much car. it probably sounded dumb to u cuz your a auto technical person. calm down bruh. i'm not on here to go through everything i say with a fine tooth comb. u sound like u miss low_bux_racer. i'm not the 1 u have to get on. let killerxramances know what time it is. i was expressing a racer opinion not a civil daily driver 1 internet conversations can and will always b confusing.

 

wth???

 

is our engine built for a 6th?

 

well... i suppose it could be built for a 6th... it really depends on the transmission and the ECU.

 

I've got no problem with the tC tranny being a 5-speed -- I just think Scion needs to revise the gear ratios. The low gearing we've got would be great for a peaky, low-torque, smaller-displacement inline-4, but with our 2.4-liter engine that makes more torque than horsepower and has plenty of low/mid-range grunt, I'd prefer higher gearing. IMO first should be about halfway in between our first and second, and fifth should rev around 3000rpm at 75mph.

BTW, I think what Flint is getting at is that transmission choice will depend a lot on engine power/torque curves, redline, etc. There's not as much point using a 6-speed in the tC because the engine has a broad power band and the top speed is electronically limited to a little under 130. A 6-speed becomes much more useful if the engine has a narrow power band (such as many of the smaller-displacement I-4s that make all their power at high revs, therefore you want a greater number of closely-spaced gears to keep the engine in the powerband for maximum acceleration), or if the car is designed for a high top speed.

--mark

 

That makes more sense. With the high final drive the engine does turn a lot of RPMs on the highway. This isnt good for mileage but it is good for passing. You could redo the gearing and get better mileage but it would cost you a little preformance or you could add a 6th gear and have to downshift to pass. Many sports cars have 6 speeds for mileage. They can hit top speed or close to it in 5th gear though. They just dont have enough power to overcome the drag to go any faster in the top gear.

 

thanx mark

 

Yea seriously. The only reason the XRS has a Sixth gear is becuase it borrows its drivetrain from the Celica GT-S.

 

your late! we already deaded and cleared up my arguement. plus i stated opinion, not fact.

 

nothing wrong with adding more to the discussion : /.

 

 

I was not trying to add to the arguement. I was simply stating the Difference, the Corolla only comes with a 6speed becase it shares the Celica GT-S drivetrain. <<< Not Opinion Just Fact

 

Anyways i was more or less replying to what "emiller" was expressing, and not your comment. Sorry next time i shall edit my response to be more specific to what i was responding to.