Question about HIGH Speeds

[SpeedyYaris]

Hello I have a 2009 yaris 1.5 5speed manual.. I travel a lot between Phoenix and San Diego and I usually drive about 85-90 mph.. I notice the engine is roudy at this speed.. is it ok for the yaris to travel at these speeds or does it stress the engine?

Thanks in Advance!

[dj92]

That's rather slow, I'm used to 100...110, but that's close to the technical limit ;)
I would not worry too much if the oil is not too thin (depending on its specification AND how often you change it).

[SpeedyYaris]

Lol that's fast. :thumbsup: I just feel like this car needs another gear for lower rpm and cruising speed. It would make the engine quieter and offer more mpg at these speeds. It's not near as loud as the 4speed auto. Talk about engine noise...

[enviri]

I also avg 95mph..I'm pretty quiet lol. Just add some sound deadening, cause our car got one!

[SpeedyYaris]

I've noticed the rpms are at about 4k when im traveling this speed... That can't be good for the engine.. thats close to redline.... :cry:

[IllusionX]

Redline is at around 6500rpm. 4000rpm is not even closed to redline.

[fnkngrv]

As someone who pushed the stock engine to the limits I can tell you that you are fine rolling at 4k rpm even over 100 miles. I would avg 90mph for a 120 mile stretch up by me all the time. As previously said you just need to pay attention to the condition of your oil, coolant, and other things just like in all honesty you should if you always drove at 70mph. It could eventually cause additional wear I am sure, but you have to weigh what you are willing to deal with and why you go that fast. And yes, I would go those speeds even before being boosted....it would just take a lot longer to get there :laugh:

[SpeedyYaris]

Considering that it's a 5 hour drive of constant high rpm... No good..

I think it also is the way the engine was built.. Because i've driven a new lexus is250 at 90 mph and the RPM is about 2700.. so that is way less .. it still got 30 mpg too... where as my yaris at 90 is about 32mpg .

[fnkngrv]

it doesn't have to do with the engine. it has to do with the gearing of the transmission. they are designed to still have you in the power band at higher speeds to a point so that you cam keep up/pass. You are only talking 90hp to the wheels stock.

[fnkngrv]

it also depends on the terrain as well. if it is mostly flats or hilly too.

[Flipper_1938]

Considering that it's a 5 hour drive of constant high rpm... No good..

I drove my from Kentucky to Nevada in a straight shot (1750 miles) running 85 where I thought I could, 70 where I wasn't comfortable. Oh yeah, the car had 300,000 miles on it at the time. The motors in our cars is a great little motor!

If I remember correctly I was at highway speeds for about 28-30 hours straight. I only stopped for gas, fast food, and bathroom breaks. I had a case of Mountain Dews and someplace to be.... The Bonneville Salt Flats!

http://i110.photobucket.com/albums/n90/Flipper_1938/2010%20Speed%20Week/IMG_0275.jpg

[SpeedyYaris]

Oh i see... Btw... does the manual make more horsepower to the wheels than the automatic? I've driven both and the automatic feels about the same .... Im sure it is little difference.
Sorry for all the questions, I just recently got the yaris as a hand-me-down and im just so excited haha

[kimona]

Lol that's fast. :thumbsup: I just feel like this car needs another gear for lower rpm and cruising speed. It would make the engine quieter and offer more mpg at these speeds. It's not near as loud as the 4speed auto. Talk about engine noise...

I recall the 4-speed automatic actually having higher final gearing than the 5-speed manual. So, at 60 MPH, for example, the manual runs higher RPM's than the automatic (and may therefore be ever so slightly noisier). There have been a bunch of threads on this issue.

I think the automatic runs reasonably low RPM's at highway speed, and I don't find the engine terribly noisy. Of course, I seldom travel over 70 MPH.

[SpeedyYaris]

That's interesting.. I've driven an auto and ithe engine was a bit louder... But it also had 150k miles on it so that may have been a factor too.

[428CobraJet]

A. If you don't have the rear sway bar...you need it
B. In my 09 i would need ear plugs.

I drive 80-85 alot...but that's chicken feed compared to triple digits.
Craig

[SpeedyYaris]

Does it also improve handling or is just for a quieter ride?

[428CobraJet]

The ear plugs?

It makes it less twitchy and allows me to drive to the coast at 80-85 with one hand.

Its not like a regular sway bar (doesn't fasten to the car...only the suspension) but it really calms car down. I used tge $150 TRD one. There's others also. 10 minute install. No down side.

[SpeedyYaris]

Could you link me the one you got? Thanks :)

[428CobraJet]

Imho...a rear sway bar decreases a car's directional stability (making it more nimble). This one seems to increase the stability. Turn in seems unaffected (well...it leans less...i guess you could say its better).

[428CobraJet]

http://stores.revolutionparts.com/toyotaonlineparts.com/
They were the cheapest i found in April. Liked it so well i bought one for my brother's 09 3dr as well.

http://www.toyotaonlineparts.com/oe-toyota/ptr1152071

Do a search on this forum. There is much info on how big an improvement there is. Great thing about this forum! And looks like the new SE is coming with it (if i read correctly).

[aspro]

I've driven my yaris flat out (182 km/h) many times for quite some time and she ran smooth and sturdy every time I've done it. I also usually have the car on the highway between 130-140 km/h and it seems as if the yaris prefers to run at that speed. I also beat her up at the track ringing the motor out at the top of the power band for hours and it just keeps going. The car actually runs a lot smoother after a day at the track.

For reference, I do really maintain the motor. Always checking oil levels and Always synthetic with OEM Toyota filter and always change it at 5000km's. A bit overkill but I'd rather spend a little money now than a lot of money later on.

[bronsin]

Hello I have a 2009 yaris 1.5 5speed manual.. I travel a lot between Phoenix and San Diego and I usually drive about 85-90 mph.. I notice the engine is roudy at this speed.. is it ok for the yaris to travel at these speeds or does it stress the engine?

Thanks in Advance!


Not a problem. I rode my Honda ST1100 motorcycle for 109,000 miles at those speeds and higher on cross country trips and the rpms were like 5000. The motorcycle has over 200,000 miles on it now under the current owner.

Engine block has never been touched.

At those temperatures and speeds I would NOT be running 0w-20 oil in it stick with the 5w-30. Or 10w-30. Your oil pressure will thank you!

[nookandcrannycar]

Considering that it's a 5 hour drive of constant high rpm... No good..

I've driven the 80 MPH limit section of Interstate 10 that stretches from the El Paso County/Hidalgo County line (about 30 miles East of downtown El Paso) to a bit West of Boerne (along the western edge of the San Antonio Metro) going east and the opposite going west quite a few times (at the limit....or the flow of traffic :biggrin:.Over 5 hours either way IIRC) in my 2007 Yaris....and the engine still seems normal at 294,003 miles.

[Kar98]

Man... I must be getting old. At 92 mph is where I chicken out because then the car becomes too unstable and bounce for my taste. Other cars of similar size, I had no problem going 100, 110. (VW Scirocco and Rabbit GTI)

[nookandcrannycar]

Man... I must be getting old. At 92 mph is where I chicken out because then the car becomes too unstable and bounce for my taste. Other cars of similar size, I had no problem going 100, 110. (VW Scirocco and Rabbit GTI)

I haven't hit 92 in my 2007. My 2014 feels so taut, if it was legal, I'd take it to the maximum speed it could manage. I've taken a Scirocco to the equivalent of 100 and a Rabbit GTI to close to the equivalent of 110 MPH, and another car to the equivalent of 140+ MPH. Not saying which country hosted my driving at those speeds :biggrin:. I share your sentiment above re not driving at 'top speed', but I think it is because I look at life differently, not re a lack of nerve, etc.

P.S. - differently meaning different than I used to (not in relation to anyone else)

[KorJax]

I think it should be fine.

Assuming cars are like video cards, you can run them at near max load (in video card terms: load = temperature) because they are designed to not fall apart until beyond that point. But you just might not get the most efficient results (bad MPG's) if you do it and you might limit the lifespan if your other factors aren't up to par - i.e. if you have problems with cooling, oil, etc it would be extra bad if done at those speeds.

[Kal-El]

Not a problem. This motor is bullet proof.

When it comes to high speeds in the Yaris, the more important thing is to have a wheel and tire upgrade from the puny stock setup. The narrow stock rubber can be a bit unsettling. Wider, lower profile tires make a huge handling difference.

[nookandcrannycar]

This motor is bullet proof.

:thumbsup:

[fnkngrv]

well, not totally bulletproof...lol

[nookandcrannycar]

well, not totally bulletproof...lol

:laugh: Not when it comes to racing or other like pursuits, but you know what he meant :biggrin:.

[SpeedyYaris]

This weekend i did make the trip and no problems Lol i just worry to much is all i guess... I did get it to 115 tho :evil: It felt like it could go faster but I let off.. Now makes me wonder what its top speed really is... The funny thing is it felt stable at 115... Or i was just too tense to think about it and was just trying to focus on the road !

I Noticed one problem though... I hit an area with high crosswinds and lets just say i was miserable for about an hour of the drive lol

[aspro]

Mine topped out at 182 km/h

[nookandcrannycar]

https://autos.yahoo.com/news/speediest-and-slowest-states--where-does-yours-rank-231406153.html

[billyadm1706]

are you sure it's your engine sound? it could be your tire's sound..
as long as your engine does not produce rattling sound, you're good to go

[fnkngrv]

ecu limits the car to 118. at that point you will hit a fuel cutoff which leans the afr out to 18. This is not something that should be played around with as it will cause premature wear on the engine. as for top speed I know that I haven't maxed out the c50 trans yet and I hit 154.5mph officially in a mile and a half. I have hit mid 160s on the dyno. Still making adjustments and would really live to see what the c50 maxes out at before a rebuild. the car at least with my suspension setup feels fine at 150-155.

[brg88tx]

I've had mine on cruise at 82 mph for 5 hours straight several times with no problem.

[428CobraJet]

Brg...what kind of mpg were you knocking down?

[nobodywise]

Mine sounds like it's crying at those speeds too, glad I'm not the only one, then again... I drive a sedan

[SpeedyYaris]

after driving 85-90 i ended up getting 33mpg.. Pretty good if you ask me XD But i was only one in the car and ac was off but still :)

[fnkngrv]

Can't complain about that man. Ask some of these other folks driving other whips and they will envy you getting that type of FE at consistent speeds over 80.

[600RRgoal]

I just came back from a trip.. 18 hours cruising roughly 75 the entire way to destination, and 14.5 hours cruising roughly 75-80 back. No problems and I got over 39 mpg both ways. No stops for anything other than gas

[428CobraJet]

I dont get that good. Maybe its the ethanol. ..or lack of cruise control.

[600RRgoal]

Cruise was a savior for sure! My best tank was just under 44 mpg.

[Jlively]

Not a problem. This motor is bullet proof.

When it comes to high speeds in the Yaris, the more important thing is to have a wheel and tire upgrade from the puny stock setup. The narrow stock rubber can be a bit unsettling. Wider, lower profile tires make a huge handling difference.

My Dodge truck has a true bullet proof motor ha ha.

I have an 09 a/t 5 dr hb and I do prolly 65-70 mph daily np and not really any engine noise, at least not enough to bother me. Ive had it up to 85 on our highway which is risky being our speed limit is 60 most places lol. But even around 85 I didnt experience any major engine noise. Maybe its bc I am used to my carbed 318 dual exhaust at 60-70 mph which is rather loud lol.

[El Kapitan]

lol, this is why i'm always so scared when i buy used cars... but at least you guys take good care of them. a person who drives slower but skips service intervals is worse of course.

[IllusionX]

I took mine (toyota Echo) all the way to 113mph before. I even followed a Mitsubishi Eclipse at 100mph on my way to NYC.

[colj00]

you will not damage the engine at 4000 rpm, they designed it so it can be run at long periods safely at any rpm below the redline. you do far more engine damage driving your car when you first start it up in the morning.

[Echo86]

Only concern at high speed is a strong crosswind. MPG at a buck 20 avg 43 in the winter. Just shy of 50 in the summer.

[IllusionX]

Only concern at high speed is a strong crosswind. MPG at a buck 20 avg 43 in the winter. Just shy of 50 in the summer.


When I had my echo, it was more stable at 120kmh than it is at 80kmh with very strong crosswinds. Strong enough to flip 18 wheelers...

I was also lowered with eibach ProKits.

[Echo86]

[QUOTE=IllusionX;753933]When I had my echo, it was more stable at 120kmh than it is at 80kmh with very strong crosswinds. Strong enough to flip 18 wheelers...

I meant high high speeds. The ones where your check engine light comes on because the car doesn't recognize WARP on the speedometer.