FRS stock top speed

[paolo_86]

132mph on the A8 Autobahn in Germany. Plenty of power left, but had to back off due to slower traffic.

[carsebuco]

Originally Posted by Ron B Avery

Coming back from Arizona yesterday down hill a bit. I saw 126 MPH in 6th.
On the way there on a part of the road that was flat. I saw 116 MPH, in 5th.
It took a long time on the flat road and it was just at red line in 5th.

Ron

I red lined 5th at 120mph I think, so I know it's always safe to downshift on the highways. It'd be nice to see how 6th does, though.

[Sapphireho]

Shit, some of you have gone so fast. Here in California I take it to 95 in the middle of the night with no one around. I can't afford a felony. Over 100 is a felony.

I would be so scared to take this car to 140+ without some serious proven real air effects. One bump, tire problem, and you are a statistic.

[paulca]

I call bullshit on anything over 140 in a stock car with stock wheels.

[mrg666]

Originally Posted by paulca

I call bullshit on anything over 140 in a stock car with stock wheels.

So it is bullshit, period.

[-Willis-86touge]

[QUOTE=paulca;2957347]I call bullshit on anything over 140 in a stock car with stock wheels.

Haters going to hate. ! It can ! Do 150 for sure! Any more and it might be grade of terrain helping out. Just because someone can't push past being scared doesn't mean this car and tires aren't capable! Call me a liar all you want but personally hit 155!

[humfrz]

Originally Posted by paulca

I call bullshit on anything over 140 in a stock car with stock wheels.

hmmmm....... was the guy in the video on post #276 bullshitting us ...... ??


humfrz

[nextcar]

Originally Posted by nextcar

Pictures or it didn't happen...

Originally Posted by Sapphireho

Shit, some of you have gone so fast. Here in California I take it to 95 in the middle of the night with no one around. I can't afford a felony. Over 100 is a felony.

I would be so scared to take this car to 140+ without some serious proven real air effects. One bump, tire problem, and you are a statistic.

I was too subtle in my original post. That disembodied FRS instrument cluster was part of the scattered debris when an FRS was going 140 and hit a light pole and split into 3 pieces.

Anyone who does this level of speed on public streets (autobahn excepted) is driving very, very irresponsibly. I don't mind social Darwinism, but you might just take out some innocent bystanders even if you think no one else is nearby.

/lecture

[Ron B Avery]

Originally Posted by carsebuco

I red lined 5th at 120mph I think, so I know it's always safe to downshift on the highways. It'd be nice to see how 6th does, though.

Don't forget I My 2017 has a lower final drive ratio 4.3 as opposed to 4.1
Ron

[Borchert97]

I was up in the mountains on I-90 between Spokane and Seattle, topped the car to 134, it felt like it could've kept crawling up faster but I couldn't get a stretch where I felt safe enough to keep going. The stretch after I was accelerating, got to 120, and I see cop lights about a half mile in front of me. That was the quickest I've ever braked from 120 to 70. I was also out in the heat at high altitude, I feel like on a longer road and in cooler conditions, I could've hit the 140 most people talk about being this car's top speed stock.

[Somerandom18]

Originally Posted by paulca

I call bullshit on anything over 140 in a stock car with stock wheels.

It's pretty easy. At sea level. With ambient temps at 70f or below. I don't see why it's hard to believe. What do wheels have to do with anything?

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[paulca]

Originally Posted by humfrz

hmmmm....... was the guy in the video on post #276 bullshitting us ...... ??


humfrz

Okay, fair point on "indicated" speed. But the stock speedo overreads by around 10%. So his 149 indicated is probably more like 136 actual.

If you don't believe this, look up the mechanical limit of 2nd gear, I believe it is 59.8mph or something similar. Now go and bounce the car off the limiter in 2nd and see what speed it reads, I've seen mine read 65mph. Then check on a GPS.

Wheels/Tyres make a difference, even tyre pressures make a difference. The speedo only counts how many times the wheels go round, via a gearbox sensor and multiply it by the circumference of the tyre. If you put smaller wheels, even by a few mm smaller the speedo will read high. Even worn tyres can add a few percent to your indicated speed. If you changed your wheels and tyres and did not match the sizes exactly to achieve the same total circumference of stock your speedo is now inaccurate. In the UK insurance companies get awful annoyed about this and refuse to pay in some circumstances.

As I worked out on another thread. The difference in horse power between 139 and 160mph is 64bhp! The car needs 264bhp to do 160mph. That is assuming the 139 is it's genuine max actual speed.

You see adding 10mph here or there is not a small thing at top speed. Every mph needs more and more power. The simple rule is, to double the speed you need 4 times the horsepower. Anyone with a basic college education can rearrange that to work out the horse power difference needed to change their vmax by a given amount.

A down hill will not make as much difference as a tailwind would. Air resistance is such a big factor that mechanical drag is all but negligible at top speed.

With that said, in theory with a constant 20 mph tailwind I suppose 150 might be achievable. However finding such a steady wind that would allow the car long enough to accelerate to 150 is going to be very hard to find.

[MurderousPandas]

Originally Posted by Borchert97

I was up in the mountains on I-90 between Spokane and Seattle, topped the car to 134, it felt like it could've kept crawling up faster but I couldn't get a stretch where I felt safe enough to keep going. The stretch after I was accelerating, got to 120, and I see cop lights about a half mile in front of me. That was the quickest I've ever braked from 120 to 70. I was also out in the heat at high altitude, I feel like on a longer road and in cooler conditions, I could've hit the 140 most people talk about being this car's top speed stock.

This. Once you hit 120, the car crawls. I've taken mine when it was stock to about 130, but small hills/bumps were ahead and sketchy. It could have kept going, but not worth. I was about a foot above sea level, 85*f in high humidity. I'd gladly do another run to try and max it, but i'm modified now.

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[Ultramaroon]

Originally Posted by paulca

Okay, fair point on "indicated" speed. But the stock speedo overreads by around 10%. So his 149 indicated is probably more like 136 actual.

I agree with your conclusion regarding your own speedo but disagree with the generalization. By all verifiable techniques, mine is dead on.

I've pulled 112 on the front straight at PIR. That's plenty fast enough for me.