BRZ top speed
 

Well I found out last night the car is limited to 138 MPH according to the digital speedo. I still have to verify this with GPS. Now the question is how do I get the limiter removed?

Where in CT did you get up to that speed?

Note: I'm in CT as well.

An undisclosed ractrack of course. So the people that will no doubt want to say its stupid and dangerous and all other kinds of high horse talk will know it was on an undisclosed racetrack. :thumbsup:

Isn't it aerodynamically limited? Also if you start the route recorder on the gps it will keep track of your top speed.

You're probably just aero limited, 138mph is a pretty weird speed to set for an electronic limiter.

Very close to the 143mph I see reported.

There was a dyno run on these forums showing the car tops out at 170 something. Not sure where that link is...

Dead on 220km/h so I wouldn't think so.

This guy got it up to 235km/h (146mph)


[ame="http://www.youtube.com/watch?v=67jvKyqDIPY"]http://www.youtube.com/watch?v=67jvKyqDIPY[/ame]

Here's a link to the 170 mph dyno run.http://clubsciontc.com/forums/anythi...p-speed-47861/

Cliffs: Zee Germans.

That's without wind drag though, won't happen real world on a stock 86.

No air resistance = that top speed.

Exactly... 200 hp isn't nearly enough for any modern production car to come anywhere close to 170 mph, because aerodynamics at higher speeds plays a significant role, hence why a car like the 2013 GT500 with 662 hp have a claimed 200 mph top speed while struggling to hit it in third-party tests (as Motor Trend tried to do it but only managed 196 mph). It contrasts to less powerful but more aerodynamic cars not being far behind, like the Z06, which manages 199 mph with 505 hp. Even the original 480 hp GT-R managed 195 mph when tested by Motor Trend.

With the rev limiter bouncing in neutral on (assumed) a cold engine and runs up to 146mph how long do you give that brz till it needs an overhaul.

Point is though, that it's not "electronically" limited at 138mph. That OP thinks it's electronically limited to that mph, otherwise he wouldn't ask about removing the limiter.

It goes to 170mph, but not at 200hp with wind resistance.




If it were a cold engine, you would see water coming out of the tail pipes.

You learn new things all the time!

any performance mods to get it that fast? i see the exhaust is not stock.

^ there's a good chance that car is stock including the pipes..remember it's only north America that gets shafted with the downgraded exhaust tips.

Your lucky if you can get it up to 110mph on a race track before you have to turn.

dear god I was holding my shirt watching that....just waiting for a BOOM! sound lol from what it looked like in the video the MPH needle was just about to hit the RPM side haha

Depends on the type of track. How about some NASCAR track? Since this is completely hypothetical lets say it was on Volkswagen’s super-secret test facility in Germany, Ehra-Lessien.

On da moon doe?

Let's see if anyone here gets that reference. ;)

i will tell you when i can put this car on the german autobahn in september

I'm assuming you're going to head to the Ring at some point?

I rented a car from rent4ring.com in March and had a blast, since getting my BRZ I keep thinking about how I can get it on the Ring. :P

Doubt it's aero limited. This car is more Aerodynamic than my 07 350Z, and that car tops out at 155-160mph. Magazines said limited to 155, but many bone stock 07-08 Z's have surpassed the mark to about 160. I bet that the BRZ is limited to 138mph because that is the maximum speed that the stock Michelin Primacy HP tires can withold. They are JDM sport Prius tires afterall. This car is capable of a higher speed, Im sure of it. Maybe 145-150mph.

*Note. The 2011-2013 Mustang V6's w/ 305hp are limited to 117mph because of the speed rating that the stock tires can withold. I know that a 305hp car with a 6 speed transmission can go faster than that. So I think this is a similar case for the BRZ. Run a performance tire with a better speed rating, and the cars capabilities will be pushed closer to what physics and the engine allow the car to do.

I'll have to bust out my FRS on GT5 and take a top speed run. I am betting with a tail wind 134mph.

:bs:

Don't believe me? Check the speed rating on the tires and tell me Im wrong. I don't know the speed rating personally, but Im sure it's pretty low. Anybody have any info on what the speed rating is for the stock tires of the FR-S and BRZ?

The driveshafts are also not balanced for that speed. There have also been reports of owners bypassing the limiter and having thier driveshafts grenade and having thier warranties voided because of it.

I said since month that the official top speed is much too low!
The good aerodynamics and 200hp just does not fit to the top speed value.

My BMW 323ti has a drag coefficient of 0.34 and a quite similar frontal area to the Toyobaru.
The Toyoabura has an drag coefficient of 0.27.

Frontal area x drag coefficient = aerodynamic drag:
0,67 for BMW 323ti
0,5158 for Toyobaru

My BMW runs 230 km/h (143 mph) with just 170 hp and 240 km/h (149 mph) after tuning with 208 hp / 216 hp (official in documents / results from the dynamometer).

So why should I expect the Toyobaru to go only 230 km/h (143 mph) - with 200 hp???

They're 87W's, which means 168mph.

I'll try and go out tonight and mount my gopro to show.

Verified on my FR-S as well.

"Chauntalei" beat me to it because I had to go get a flashlight to read the number in the garage. Doggone old age can't read in the dark anymore...

Yeah, I've read up on that as well. Totally bizarre.

Really? Damn, that's pretty impressive for being a JDM model sport Prius tire! I have no idea what could cause such an unusual top speed then. Wonder when we can find an answer? Quite a few performance cars been around lately with weird top speeds. I remember when the G8 GT came out it had a top speed somewhere in the 130mph range. Pretty weird for a 6.0L LS2 V8 granted it's a 4 door sedan. Gotta be some explaination.

Not really? I think a lot of luxury cars use it, and they typically have enough power to hit 150-160 just fine.

It's the gears probably, 5th tops out at 130something while 6th runs out of breath. 6th might be able to push a little higher but maybe not, so they say it's 138. 6th will top out in the high 160s, which may or may not be possible.

Eh, when you consider the fact that the tires are $200+ each, I expect that kind of performance out of them.

Interesting, could it be due to the low torque maybe? I'm just speculating off the cuff, I haven't looked up the 323's torque rating so I'm probably way off the mark.

They're supposed to be comfortable, quiet, and sort of grippy, that's what summer touring means right?

Torque doesn't matter, it's where the next gear lands you in the powerband.