Just a quick question.
On a stock scion tc, what mph does 3rd gear top out at?
For some reason I think after I put on my exhaust i have a higher mph but I dont remeber or recall ever checking the mph when it was stock.
I would think that it would not change due to the gear ratios but for some reason I feel it has.
Thanks
-Squish

 

77 MPH from what I recall...80mph if your good, you can wind it out a little more then 6200rpms before rev limiter..

Gear, Ratio, Mph/1000 rpm, Max test speed
1st, 3.54, 4.7, 29 mph (6200 rpm)
2nd, 2.05, 8.2, 51 mph (6200 rpm)
3rd, 1.33, 12.6, 78 mph (6200 rpm)
4th, 0.97, 17.2, 107 mph (6200 rpm)
5th, 0.78, 21.6, 127 mph (5900 rpm)

Unless you changed your rev limit, or gearing..not much is gonna change.

 

as said above, unless you change around the gearing or the computer (to change the rev limiter), you're not going to see a difference in how fast each gear can go up to no matter how many power mods you do :D

 

Yea,

Last tym i was driving pretty fast and the rev limiter kicked in and i felt a slight pull backwards and it felt like i lost alot of power!!

 

Shift faster...

 

yeah thats what I thought. Its limited to the gearing.
OK thanks. My friend thought it was since I put the exhaust on it let me go higher in 3rd but I was sure thats not possible.

 

51 for second gear??? I can take mine to about 58 and around 82 in third, but it might be because of the supercharger.

 

well w/ the supercharger u got a reflash for the ecu, which might have changed the rev limiter a little? I have no idea.

 

They wouldnt have changed the rev limiter for the SC, if they did I would really be wondering why.

Only two ways to go faster in a given gear, higher gearing or higher rev limiter.

 

yeah I wouldnt think they would raise the rev limiter but I really didnt know.

 

Ok, so with the Given Gearing/Ratios without the gov, what would the tC theoretically top out at? 13Xmph?

 

according to the gear specs that zero posted, for an additional 300 rpm in 5th gear (move the max rpm from 5900 to 6200), you would be able to go 6.48 mph faster. This would max the car out (gear/spead wise) to just over 134 mph.

 

They may have raised the rev limit with the S/C reflash since the S/C shifted the entire powerband to the right by quite a bit. If you look at a SC dyno, you should see that it starts to level off at the end but definitely has room for a few more HP before it levels off completely.

 

Just a FYI I pulled that information from Car and Drivers review way back in August 2004..

http://www.caranddriver.com/roadtest...-tc-page4.html

 

As far as whether they would have rasied the rev limit, it depends on the safe limits for the engine. Right now the redline puts the piston speed at about 20 m/s. I am guessing this engine probably has a max safe engine speed (for any duration more than just a quick over rev) of somewhere in the range of 22 m/s, which puts it up around 7000 rpm. But that would probably be pushing the limits of the stock design, which makes me think that they would not raise it much if any at all.

As long as you can keep the intake system up to the task, and the oiling system (which could possibly be another barrier), you could find some lighter pistons and rods, and do the math to figure out how to raise that safe operating limit.

 

zero have you noticed any of this other kids posts....he just doesnt know how to drive...screw shifting faster...learn when and how to shift.... im not trying to attack you....and you should send me a pm or something because you need to learn how to drive, or all the money your spending or planning on spending will be used for replacement parts, i know i cant show you anything, but what your saying is making it obvious that you should learn how to drive...before you go around driving fast...getting hurt or in trouble...and ruining it for the rest of us who have been doing this for a while

 

hmmm i def dont disagree....i just have to wonder why hes going faster then....i imagine that it had to be the reflash....i mean the car is one giant cpu(theres like 8 of them or something)...but i bet they are playing it real safe from the get go on this motor like seriously de-tuned....it just doesnt make sense the power the motor makes stock is too low for a 2.4L vvt-i.....toyota always plays it so safe anymore, u'd think with all the f1 technology we'd get a serious head in this car ( has anyone bench flowed it yet, im sure they have, to see the afms? and how that compares...that motor by yamaha in the celica gt-s is a dead breed for toyota..oh well .. thank god for lotus...haha

 

I dont think he is going faster at all than stock per gear

 

I say BS on the 82 in 3rd gear.

 

im about 79-80 MAX in third, if your more than that its cause you have slightly bigger wheel/tires giving you a slightly bigger final drive