I've done 155 under moonlight with no headlights, true story never doing it again.

how hard were you afterwards though?..........


:wtf2:



:yum:

I have a video of me riding on the stock speed limiter, which was indicated as like 156ish according to the needle. Back from when my car was mostly stock, just test pipes/wheels/suspension, or maybe I had the exhaust on too.

But, it was on public roads and I am passing cars... so I cannot post it because I do not want to get banned!

:yum:

Phunk, but it was when you were on the autobahn... Lol

I might have a video of my GPS speed as I max out a particular gear. lol its amazing how far off your speedo becomes.

im interested :tup:

Ill throw it on my google drive when I think about it. I had it on youtube for awhile but pulled it down.

well we dont need the video evidence. i am more curious as to how off it is and at what speeds etc... just the info. nothing wityh incriminating evidence lol

Id have to look at it again, but the speedo was reading (80+km/hr) and I believe the gps was in the ballpark of 60km/hr.

:)

thats a big gap......kinda concerning lol

i'll have to test that soon myself.

Thats on 305s as well, so not 100% stock in terms of tire height

yes ive noticed differences in mine vs highway radar signs by construction with my 305s

Yeah at slower speeds its not enough to be concerned about. But when you take that percentage your out, the difference between your actual and indicated speeds grow as you get faster.

I also used a radar detector gps which doesn't update as fast as you would like, but when holding a constant speed its right on the money.

Thought I was going to have a heart attack. As a side note the factory brakes can only stop her 3 times from that speed before they go full fade.

Just from switching from the stock Sport setup to 275/35 on 18s, I get a ~5-7 mph difference between GPS and the speedometer in the ~80-130-ish mph range (speedo reads high). I'm surprised UpRev hasn't offered a correction for rear end ratio and tire circumference like many programmers do on other cars. Perhaps there's some limitation in the stock ECU itself that's difficult to work around?

UpRev makes no money on licenses and doesn't give a damn about us.
That's the real truth

LOL, I take pics near that speed...on the Autobahn also...lol

It's not that they don't make any money on licenses they just don't make as much as other platforms so we are the last to get development allocated towards our extra complicated ecu. If our cars were as easy to decode and as plentiful as say the puke's motor then we would have more stuff by now. Uprev apparently has also had issues over the last half decade of their main programmers going elsewhere.

just to clarify that he is saying 160mph or 258kph just to avoid metric confusion.

YOU know what a license costs, lol
I bet they barely made their R&D money back. Retailers make money on UpRev

Yeah but the software is downloaded so they are probally looking at what, 10-20 bucks for a cable and the box? They probably make $300-400 from every schmuck that buys a cable for their half done software.

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There really isnt a good solution for our cars, brz edit is like $150 and had 3 times the options uprev does the day it was released and is easier to use.

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So........the new term is now......."Autobahning". :driving:
I went "Autobahning today and hit 257kpm. :driving:

155 on a closed road in Mexico.

Well obviously the car hits ~155/160, there's no point posting those. That's where the stock ECU speed limiter kicks in. The question is mapping out drag limit vs available torque (a function of both engine and gearing) beyond that. I think the 175-ish numbers seem reasonable for a bolt-on N/A, I can't imagine much higher than that without boost.

Then again who cares really, it's just a meaningless game of immaterial numbers? Pretty much a non-issue on road-courses that I know of; I can't imagine hitting the drag limit on one. I could hit maybe 150 on a perfect day at the most ideal track setting around here I can think of, for a split second before slamming on the brakes again.

Getting up into drag-limit territory on the road is... risky at best without at least some cleared traffic and a radio spotter? Conscious visual reaction times are on the order of ~250ms+ (some researchers say significantly more since it's a Choice-level reaction on driver inputs), and in that time at ~170mph, you've moved almost 10 car lengths. That's assuming you even see the problem before you hit it (like a small rock in the road, or a rabbit jumping out). At least at the track you have relatively-predictable conditions and corner workers with flags.

Well it seems interesting to a few of us here about the possibility of hitting 200 mph since this thread is 5 pages long. It's just another challenge like any other speed contest that is out there right now. Yes it's obvious that our Z's limit at 155 but can they do more and do you have the balls to do it?

Yeah, see pic...lol

Do you have the balls to play Russian Roulette with another guy's head lined up next to yours? Does he get a say in the matter? The number of people interested in this topic that will actually only do it at an airstrip or the Texas Mile or something is a pretty small percentage.

As mentioned earlier in the thread, the math isn't hard. You're gonna drag limit around 170-something without boost, and higher with, and either way it's pretty damned unsafe without spotters and a closed course and medical staff on hand :p There's no responsible use of those speeds outside of specialized environments.

I think I once had it over 170 on a dyno... I could be mistaken.

Hey now some of is used to live in the middle of nowhere...next to the autobahn

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I think this went off topic just a tad. No one should be trying this on the streets. A world record is set on a closed course in a safe controlled environment, just sayin.

Yep, on the Autobahn. :driving:



Just kidding. Agree 100%. On track only. TOOOOO many things can happen on the street.

Nice try Janet Jackson.

LMAO :bowrofl: You should of never said anything about nipples. Now somebody will bust your balls over it every now and then. :owned: :bowrofl: