Toyota GR Yaris Forum banner
Cancel
Create thread New Garage Forums

Top speed limiter

Jump to Latest
41 - 60 of 107 Posts
#41 ·
Mainframe said:
I certainly won't want to be driving such an SWB car over 140mph. I have driven plenty of other cars above that speed, but all had longer wheelbases, and were designed for higher sustained top speed and cruising.

i am not putting the GR in that high speed cruiser bracket in my mind.
Click to expand...
Doesn't the GT3 have a shorter wheelbase than the GRY?
 
#42 ·
kinboshi said:
Doesn't the GT3 have a shorter wheelbase than the GRY?
Click to expand...
No idea, but The GT3, and all the 911s, are developed to go 200+mph on the Mulsanne straight, rather than for the forest stages.

Centre of gravity, steering, Electronic systems, airflows over and under car, all optimised with those speeds in mind.

Clearly this is not the case for the GR, whose brief marches to a different beat. Therein probably lies the reason for the limited top speed of the GR.
 
Discussion starter · #45 ·
odl21 said:
i didn't find the GR felt too good over 230/235km/h. maybe the winter tyres - but more likely just the aero isn't set up for it. i won't be driving mine more that 220 km/h. frankly it just doesn't feel safe. in contrast to my M5 and 911 which both feel like you can read a book and steer with one finger at 270km/h.
Click to expand...
I was still able to drive at 230 with one hand and recording the limiter cutting off speed with my mobile, so I'd say it's stable enough (and I am on winter tires). Propably not as stable as my E92 M3 (but that was 30% more weight than he GR Yaris). I would prefer a bit more heavy steering though at these speeds
 
#53 ·
Mainframe said:
No idea, but The GT3, and all the 911s, are developed to go 200+mph on the Mulsanne straight, rather than for the forest stages.

Centre of gravity, steering, Electronic systems, airflows over and under car, all optimised with those speeds in mind.

Clearly this is not the case for the GR, whose brief marches to a different beat. Therein probably lies the reason for the limited top speed of the GR.
Click to expand...
Exactly this.

GRY is simply not designed at all for sustained >200kph driving and becomes much more nervous and floaty than GTs, Ms, AMGs, RSs and the like, not very safe in case of sudden lane changes or other such circumstances IMO.

What makes it great in tight twisty 30-130kph roads, where it's just about the fastest standard car in all conditions, is exactly what then makes it less than ideal at >200kph.
 
Discussion starter · #55 ·
Can't say i agree! I have been in 4 events the past two months, all of them at >300km away from where I live. Been doing most of the Autobahn sections flat out at 230kph and the car is totally fine and confidence inspiring - if there is such thing at these speeds with any car (maybe the perfect German roads help a lot). The car is not GT for sure in terms of noise but having family sedans overtaking at 240kph is just ridiculous when you know there is at least 20kph of top speed left on the table because of the speed limiter!
 
#56 ·
We drive only max 120km/h in Finland so top speed it is kind of useless unless you do European trips. Given the car's spec and sould ballistic in gear acceleration is more in line than top speed of +230km/h or whatever as it's only marketing talk in practice. If it was perfect world car would be geared so that it reaches it's max speed with 6th Gear. maybe with shorter final drive or thighter gearing from Cusco it could be done. Found little reviews of those, it would be surely be interesting!
 
#57 ·
mattipuh said:
We drive only max 120km/h in Finland so top speed it is kind of useless unless you do European trips. Given the car's spec and sould ballistic in gear acceleration is more in line than top speed of +230km/h or whatever as it's only marketing talk in practice. If it was perfect world car would be geared so that it reaches it's max speed with 6th Gear. maybe with shorter final drive or thighter gearing from Cusco it could be done. Found little reviews of those, it would be surely be interesting!
Click to expand...
Our legal limit here, in most of NZ is 100KPH, get caught at 140+ & you are instantly walking for 28 days, then most likely another 5 months minimum...

So a top speed limiter on all but race tracks is immaterial here
 
#59 ·
We don't have our car yet but I have been reading the manual online (sad I know). Interesting to see that on the list of recommended change up speeds for max acceleration it advises changing up to 6th at 140mph. I thought the speed limit of the car was set by the rev limiter in 6th but doesn't seem then that that is the case. All academic though as this is not a car we will be taking to the autobahn and I would never do these speeds in the UK
 
#60 · (Edited)
axolotl said:
We don't have our car yet but I have been reading the manual online (sad I know). Interesting to see that on the list of recommended change up speeds for max acceleration it advises changing up to 6th at 140mph. I thought the speed limit of the car was set by the rev limiter in 6th but doesn't seem then that that is the case. All academic though as this is not a car we will be taking to the autobahn and I would never do these speeds in the UK
Click to expand...
Completely academic of course but I'd bet that many on this forum would like to know why Toyota decided on 230 KPH / 143 MPH

In 6th gear the car is still accelerating when the speed limit cuts in. From the look of it, well before power output and the forces acting against that reach equilibrium.
Rev limit in 6th is not a factor.
 
Save
Reply Quote Like Like
41 - 60 of 107 Posts
About this Discussion
106 Replies
40 Participants
Last post:
Tralien
Toyota GR Yaris Forum
posts
171K
members
7.3K
Since
2020
A forum community dedicated to Toyota GR Yaris owners and enthusiasts. Come join the discussion about performance, hot hatch modifications, classifieds, troubleshooting, maintenance, and more!
Full Forum Listing
Explore Our Forums
General Discussion Engine / Performance / Exhausts New Members Footwork / Suspension / Chassis Exterior / Body Styling / Aerodynamics