2011 IS F (updated, official news and pics) Suspension Revised
08-06-10, 05:01 PM
#228
Pole Position
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Here's a better comparison. DCT e92 M3 barely hitting 300.
Look at digital speedo it took a long time to reach it and it didn't hit 300. More like stuck at 298 lol.
http://www.youtube.com/watch?v=8_RPi...eature=related
Look at digital speedo it took a long time to reach it and it didn't hit 300. More like stuck at 298 lol.
http://www.youtube.com/watch?v=8_RPi...eature=related
08-06-10, 05:33 PM
#232
When I retire in a year or two I most likely will be heading back to the Vettes, 3200 lb, is significantly easier to control than 3800. Just have to see what improvements GM has in mind with the C7, and as mentioned I really miss the HUD.
Gary
08-06-10, 07:17 PM
#233
Driver School Candidate
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I agree. Max speedometer 200 is just dumb. Only a child or idiot will think cars go as fast as the max speedometer. I think I've seen cars with max speed 105, but the speedometer when to 140. C'mon now.
I also wished they started at 15mph, not zero. But that's another story.
I also wished they started at 15mph, not zero. But that's another story.
08-06-10, 07:29 PM
#234
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Gotcha - Ok I guess I took your chart at face value... 
So basically the engine output would max out around 180 mph and we would hold that speed & rpm around 5,600 ..
.. with No additional speed after, even with the gas pedal floored.
So what happens at around the True top speed, with out any limiters kicking in ??
Joe Z
So basically the engine output would max out around 180 mph and we would hold that speed & rpm around 5,600 ..
.. with No additional speed after, even with the gas pedal floored.
So what happens at around the True top speed, with out any limiters kicking in ??
Joe Z
Gearing is another big factor, and don't trust the speedo's either, they could easily be off by 10MPH at that speed.
08-07-10, 07:08 AM
#235
Lexus Test Driver
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Keep in mind that wind resistance increases at the square of speed, so your resistance as you approach 200MPH is twice that of 140 MPH. Meaning, you'd need roughly twice the horsepower for 200MPH than you would for 140. A 600 HP Viper can't even hit 200 MPH (due in part to bad gearing).
Gearing is another big factor, and don't trust the speedo's either, they could easily be off by 10MPH at that speed.
Gearing is another big factor, and don't trust the speedo's either, they could easily be off by 10MPH at that speed.
08-07-10, 07:52 AM
#236
Tech Info Resource
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By what measure? Your speedo? It's got a 6% tolerance from the factory and it can't account for tire slippage.
You need GPS, radar, or ideally a trap speed measurement to know how fast you're really going once you break 150 mph. I seriously doubt you hit 190 in an Evo with only 430 hp at the wheels.
You need GPS, radar, or ideally a trap speed measurement to know how fast you're really going once you break 150 mph. I seriously doubt you hit 190 in an Evo with only 430 hp at the wheels.
08-07-10, 08:19 AM
#237
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By what measure? Your speedo? It's got a 6% tolerance from the factory and it can't account for tire slippage.
You need GPS, radar, or ideally a trap speed measurement to know how fast you're really going once you break 150 mph. I seriously doubt you hit 190 in an Evo with only 430 hp at the wheels.
You need GPS, radar, or ideally a trap speed measurement to know how fast you're really going once you break 150 mph. I seriously doubt you hit 190 in an Evo with only 430 hp at the wheels.
My rev limit was set to 9000 rpm in my AEM EMS. I hit the rev limited in 5th gear, which was my top gear. I had OEM wheels and tires on the car, so all I needed to do was find the gear ratio chart. Stock trans, Stock gearing, Stock wheels/tires. Unless the AEM is off by a significant amount on my rpm's, it shut me down at 9k in 5th gear. My tach said 9k too. I wish I had a pic of the speedo buried past 170 and the tach at 9k but there was no way I was doing anything other then drive straight when this happened.
I had hit 150mph so fast (after just getting tuned) and I came over this small crest in the rd and I could see so far ahead of me. It was pin straight, no cars anywhere, no exits, no side roads. So I just stayed on it.
Like I said, the 430whp is all relative because on a dynojet, people making around that # usually make around 500-520 so take the whp with a grain of salt. I'm not making this up either, I was really amazed it got to that speed as fast as it did. I mean it wasnt jumping 5mph per second or anything, but it wasn't a crawl either. The mirrors (I assume) were screaming too. Like an air horn almost.
08-07-10, 06:37 PM
#239
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i was at work today ( i work at a $tealer$hip ) looking at the IS F 2011 new car features and there are no external changes only the head and taillights.. no mention of anny suspension shanges.. but here is some more info on the new combo meter..
i like the new features like digital speedo and shift light system, but not a fan of the look looks like a round peg in a square hole..
i like the new features like digital speedo and shift light system, but not a fan of the look looks like a round peg in a square hole..
Last edited by D2M; 08-07-10 at 08:48 PM.
08-07-10, 08:29 PM
#240
^^^^Did you happen to read Page 12 of this thread
This one:
https://www.clublexus.com/forums/is-...evised-12.html
Lou
This one:
https://www.clublexus.com/forums/is-...evised-12.html
Lou