Hey guys does anyone know the top speed in an Nsx? Is it gear limited in a turbo car? Or drag limited? I'm just wondering I have had my car going 155 with what felt like lots left in her but I ran out of road ( and balls). I have 468 whp on a 93 5 spd with short gears. Anyone have something like me and gone how fast? Real experience replies pls and thanks!
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Max speed in nsx
- Thread starter kevgk
- Start date
I've easily geared-out all of my NSX' in the past. 187mph on the datalogs with 315/30/18 tires. Realistically, was somewhere closer to 200mph with the tire height. 4.44 FD was somewhere in the 170mph range, also gear limited.
Had to give up at 145. My drivers side window must need adjustment. Seemed to be lots left though.
There was a lot left in it, but ran out of road...er, track and cajones. But yes, as Cody pointed out, we are gear limited.
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Greenberet has a video on Youtube of him on the Autobahn doing 300kph (186mph). IIRC, his car is NA with cams.
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Yes, before I got mine tweaked I couldn't really go above 120 without insane noise. Well worth it.
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It would start getting noisy around 80-90 which got really annoying for daily use. Now it's dead quiet until 120 and then you start to get a lot of wind noise.
Lucky for me i don't get any wind noise. I guess I'll take her to the "track" in spring and see what happens. Pretty impressive speeds guys thanks for posting!
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This one didn't even get into 6th gear yet 
was still pulling decent for what little power it made. Yes wind noise from the targa gets pretty bad at that speed.
http://www.youtube.com/watch?v=JkQCobW4krg
was still pulling decent for what little power it made. Yes wind noise from the targa gets pretty bad at that speed.http://www.youtube.com/watch?v=JkQCobW4krg
shawn110975
Suspended
I got my stock 92 over a bridge ran out of road at 171 mph with TCS off.
car is lowered
2001 rims
02+ rear trunk
and wind noise got louder and louder as the air was getting sucked out of the car.
I also read greenbret thread and was tring to see if I could get it close with TCS off.
this was all a dream incase they use this against me one day
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I noticed the faster you go the car sinks into the pavement and actually handles better. I mean I had my hands off the wheel for a few seconds and it was straight and true even at those speeds
the car feels safe.
my heartbeat doesn't even rise anymore when doing this is kinda boring now.
car is lowered
2001 rims
02+ rear trunk
and wind noise got louder and louder as the air was getting sucked out of the car.
I also read greenbret thread and was tring to see if I could get it close with TCS off.
this was all a dream incase they use this against me one day
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I noticed the faster you go the car sinks into the pavement and actually handles better. I mean I had my hands off the wheel for a few seconds and it was straight and true even at those speeds
the car feels safe.
my heartbeat doesn't even rise anymore when doing this is kinda boring now.
the famous 1000 hp NSX could probably hit well over 250 mph if geared properly, provided appropriate tires
What does tcs have to do with top speed? Mine does not work anyways due to the ems2.
The window noise is one of my biggest complaints. Both my former 92 and my 2000 T are horrible. Too bad a company didn't make a re-window kit which made the windows go up and down with authority and maybe do the BMW slide done when opening and closing to tighten up the process.
You guys need to get your freaking windows fixed! I have NEVER had a problem with that, and have been in the 160 - 170 mph range with my NSXs multiple times. The only thing I ran out of was power, as my cars are all NA. Oh....and if you pass a police officer at that speed, you better be ready to keep going...just sayin.
You are motivating me now...
Hey the_king did you just go try that today? Awesome.
If you know the top speed of a car and the horsepower that make it to the road at that speed, it’s pretty easy to calculate the approximate wheel horsepower you need to get to other speeds. The increase in horsepower needed to overcome wind resistance goes up as the cube of the speed increase.
Stock NA1s top out at 168 mph according to Honda and according to many dynos, put about 235 horsepower to the wheels at that speed. With the stock fifth gear, final drive ratio, and tire diameter they would reach about 186 mph at redline (see here: http://nsxprime.com/wiki/Gear_Ratios). That’s about 11% over the stock top speed and to go 11% faster, a car needs to put about 1.11^3 = 37% more horsepower to the wheels. So 323 rwhp at 8000 rpm should let a five-speed pop-up headlight NSX with stock gearing reach redline in top gear.
If your car has stock aerodynamics, you can calculate about how many rwhp you’d need to reach various speeds. Based on your actual gearing and tire sizes, you can calculate how many rpm your engine would be spinning at those speeds. And if you have a dyno chart showing your wheel horsepower at various rpm, you can compare the aerodynamic drag at various rpm to the wheel horsepower available to see what you’re likely to run out of first – rpm or rwhp.
Non-stock aerodynamics throw a wrench into the equation, however. See this thread by Prime member Yankee about how a big rear wing killed his top speed: http://www.nsxprime.com/forum/showthread.php/107139. And dynos are often woefully inaccurate so in reality, there’s no substitute for real-world testing.
Regarding the TCS: if I leave it on in my 1991 NSX, it prevents my engine from spinning more than 7550 rpm in top gear. If it turn it off, the engine can spin faster and the TCS failure light comes on instead. So the TCS, perhaps unintentionally, acts as a speed limiter.
Stock NA1s top out at 168 mph according to Honda and according to many dynos, put about 235 horsepower to the wheels at that speed. With the stock fifth gear, final drive ratio, and tire diameter they would reach about 186 mph at redline (see here: http://nsxprime.com/wiki/Gear_Ratios). That’s about 11% over the stock top speed and to go 11% faster, a car needs to put about 1.11^3 = 37% more horsepower to the wheels. So 323 rwhp at 8000 rpm should let a five-speed pop-up headlight NSX with stock gearing reach redline in top gear.
If your car has stock aerodynamics, you can calculate about how many rwhp you’d need to reach various speeds. Based on your actual gearing and tire sizes, you can calculate how many rpm your engine would be spinning at those speeds. And if you have a dyno chart showing your wheel horsepower at various rpm, you can compare the aerodynamic drag at various rpm to the wheel horsepower available to see what you’re likely to run out of first – rpm or rwhp.
Non-stock aerodynamics throw a wrench into the equation, however. See this thread by Prime member Yankee about how a big rear wing killed his top speed: http://www.nsxprime.com/forum/showthread.php/107139. And dynos are often woefully inaccurate so in reality, there’s no substitute for real-world testing.
Regarding the TCS: if I leave it on in my 1991 NSX, it prevents my engine from spinning more than 7550 rpm in top gear. If it turn it off, the engine can spin faster and the TCS failure light comes on instead. So the TCS, perhaps unintentionally, acts as a speed limiter.
greenberet, this is your picture, isn't it?
It's one of my favorite NSX pics ever.
It's one of my favorite NSX pics ever.
Yeah, that is my picture. I like it, too! A colleague took a series of pictures (slides back then) with my analog camera in 1999 during a really fun drive. Here's a link to a bigger digitization of one of the pictures:
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shawn110975
Suspended
but my stock 92 with 16 front 17 rear 2001 rims I got it to 171 just 1 mark over the halfway point in your pic greenberet but ran out of road so I don't know if I was at my limit or not if I had another 5 miles the engine may have cut off till the speed reduced a little then kick back in.
I will prob never do that again so getting a pic prob will never happen so I can back my story up lol.
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this was when I had a 5-speed in the car, I now have a 6-speed installed so I wonder if I can go faster than than given enough road
I will prob never do that again so getting a pic prob will never happen so I can back my story up lol.
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this was when I had a 5-speed in the car, I now have a 6-speed installed so I wonder if I can go faster than than given enough road
No kevgk, our roads this time of year leave alot to be desired. Our climate is slightly different than yours in the winter. And of course this never happened on public roads!
There is a possibility that you were going downhill, had tailwind or both. In order for your top speed to count you would have to drive down the same road in both directions and calculate the average top speed.
^ Nice, do you have a video?
Wow, your gauges look like they're indicating about 340-345 km/h (211-214 mph) at almost 9000 rpm. Judging by the flash in the picture, it might well have been night-time in which case your headlights were probably up. To push a pop-up headlight NSX with its headlights up to 211-214 mph will take over 600 hp, I'd guess. Have you done something to your engine recently to allow it to produce over 600 hp at 9000 rpm? Your dyno sheet from nine months ago (see here) shows your engine producing that kind of peak power at about 6600 rpm but that power falls off beyond that. If you can now maintain over 600 hp out to 9000 rpm, that's fantastic.
Also, I'd fix those oil pressure and coolant temperature gauges if I were you. When revving the engine to 9000 rpm I wouldn't want to see that it's only generating 4 bar of oil pressure and isn't even warmed up yet!
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