370Z maximum speed specification

KillerBee370 · 07-12-2010, 09:43 AM

It's got a limiter. When Technosquare tuned my ECU they removed the top speed limiter which obviously means there was a map in the ECU for such a thing to begin with.

The end.

mrcardio · 07-12-2010, 08:20 PM

If the car is "drag limited" that means there is either a deficiency in aerodynamics and or horse power. And aerodynamics goes farther than just the drag cof but I’m not going to go into that. If the car is “electronically limited” at 155mph I don’t doubt that it could reach higher speeds but the real question is how staple / safe is the car at those speeds. You have to ask yourself why the car was “electronically limited” at 155mph and the answer is probably because the car isn’t very safe beyond that speed due to aerodynamics. My MS3 is also “electronically limited” at 155mph and has a drag cof of .31 (pretty decent) It feels plenty staple at 155mph but I wouldn’t trust it much beyond that nor would I want to. Imagine getting clocked at 155+, I doubt you'll see your car again lol!

jhh343 · 07-21-2010, 10:57 PM

I am pretty sure that the car is computer limited to 155 because it is sold with W rated tires. I think their safety rating is right around 155 because they can't dissipate as much heat as a Z rated tire.

carvalho360 · 07-22-2010, 01:18 PM

not saying i was driving or anything :P ...but if i could hit 152 in my 04z i think the 370z could easily break 160 (if it wasnt for a limiter)

BrianMSmith · 07-22-2010, 02:02 PM

Quote:

Originally Posted by shumby

what does limited by drag mean.

When drag = thrust, the car can go no faster. Thrust is the reaction force of the wheel torque at the road surface. At slow speeds this force is much higher than the aerodynamic drag, so the car can accelerate. As velocity increases, the drag increases by the velocity squared.

fullmonty · 07-22-2010, 02:03 PM

Quote:

Originally Posted by carvalho360

not saying i was driving or anything :P ...but if i could hit 152 in my 04z i think the 370z could easily break 160 (if it wasnt for a limiter)

It must of been an 04.5, as those cars are F-L-A-W-L-E-S-S

Push370zzz · 07-22-2010, 03:12 PM

Quote:

Originally Posted by mrcardio

If the car is "drag limited" that means there is either a deficiency in aerodynamics and or horse power. And aerodynamics goes farther than just the drag cof but I’m not going to go into that. If the car is “electronically limited” at 155mph I don’t doubt that it could reach higher speeds but the real question is how staple / safe is the car at those speeds. You have to ask yourself why the car was “electronically limited” at 155mph and the answer is probably because the car isn’t very safe beyond that speed due to aerodynamics. My MS3 is also “electronically limited” at 155mph and has a drag cof of .31 (pretty decent) It feels plenty staple at 155mph but I wouldn’t trust it much beyond that nor would I want to. Imagine getting clocked at 155+, I doubt you'll see your car again lol!

While I'd love to believe that your mazda feels stable at 155mph, the electronic limitation is more related to what tires they put on the vehicle. I believe the tires on the Z are "W" rated, so they limit it electronically to a few mph less than the rating to make sure it will handle the speed okay. Y rated tires (which you would need if removing the limiter) are a lot less common, and I'm going to assume more expensive. Not to mention no need for the average owner to take this thing beyond 160+

spearfish25 · 07-22-2010, 06:38 PM

The sport package Bridgestones are Y rated, fwiw. Not only are Y rated tires common, they're available at very good prices. Hankook Ventus V12s are Y rated and about $220 a tire.

I have to agree that top speed worries are a bit stupid unless you're building a racecar for specific, long-straight tracks.

carvalho360 · 07-23-2010, 09:30 AM

Quote:

Originally Posted by fullmonty

It must of been an 04.5, as those cars are F-L-A-W-L-E-S-S

May be a dumb question but what's an 04.5? Lol. I was talkin bout my 04 350 enthusiast ( <3 )

stacy001 · 07-23-2010, 04:29 PM

Governor limited at 155

ProfessorDave · 07-23-2010, 06:19 PM

I'm just gonna trust you guys that the Z will go 155 (or more without the limiter). At my age, things go by pretty quickly at half that speed.

LunaZ · 07-23-2010, 08:16 PM

Quote:

Originally Posted by mrcardio

If the car is “electronically limited” at 155mph I don’t doubt that it could reach higher speeds but the real question is how staple / safe is the car at those speeds. You have to ask yourself why the car was “electronically limited” at 155mph and the answer is probably because the car isn’t very safe beyond that speed due to aerodynamics. My MS3 is also “electronically limited” at 155mph and has a drag cof of .31 (pretty decent) It feels plenty staple at 155mph

Really? My MS3 felt downright nervous and darty at 140+ mph.
I've driven a lot of fast cars, and my MS3 was not one of the more staple... err, I mean stable, of them at high speeds.

ProfessorDave · 07-23-2010, 09:10 PM

RX8 felt like it was going to go airborne at high speeds. Probably due to the lightweight wankel.

MrHooke · 05-02-2011, 11:51 AM

Great info as always loved the discussion topic. Its always a constant argument between me and my crew.

Hooked!

Blue370tt · 05-02-2011, 12:24 PM

Ok.....the car IS/WAS limited to 155mph and this limit CAN BE removed with a tune. The car IS NOT drag limited to 160........I KNOW THIS FOR A FACT! I have exceeded 160 and run closer to 170 with no problem. My guess is that the car will go over 180 but I couldnt get there as i ran out of track.

I know my car is not the norm on this forum but, I doubt the "drag limited" figure of 160 even without the TT kit.

07-12-2010, 08:20 PM	#32 (permalink)
mrcardio Base Member Join Date: May 2010 Location: Central Florida Posts: 219 Drives: 08 MS3 Rep Power: 14	If the car is "drag limited" that means there is either a deficiency in aerodynamics and or horse power. And aerodynamics goes farther than just the drag cof but I’m not going to go into that. If the car is “electronically limited” at 155mph I don’t doubt that it could reach higher speeds but the real question is how staple / safe is the car at those speeds. You have to ask yourself why the car was “electronically limited” at 155mph and the answer is probably because the car isn’t very safe beyond that speed due to aerodynamics. My MS3 is also “electronically limited” at 155mph and has a drag cof of .31 (pretty decent) It feels plenty staple at 155mph but I wouldn’t trust it much beyond that nor would I want to. Imagine getting clocked at 155+, I doubt you'll see your car again lol! __________________ ‹^› ‹(•¿•)› ‹^›

07-22-2010, 06:38 PM	#38 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1856	The sport package Bridgestones are Y rated, fwiw. Not only are Y rated tires common, they're available at very good prices. Hankook Ventus V12s are Y rated and about $220 a tire. I have to agree that top speed worries are a bit stupid unless you're building a racecar for specific, long-straight tracks. __________________ 2013 Cadillac V-Wagon, RIP Z Last edited by spearfish25; 07-22-2010 at 06:41 PM.

07-23-2010, 06:19 PM	#41 (permalink)
ProfessorDave A True Z Fanatic Join Date: Jul 2010 Location: Scranton, PA Posts: 1,580 Drives: In the fairway Rep Power: 18	I'm just gonna trust you guys that the Z will go 155 (or more without the limiter). At my age, things go by pretty quickly at half that speed. __________________ Rain, snow, sleet, hail: 2009 Mazda 3 sGT HB Everything else: 2009 370z, PW Touring 6MT

07-23-2010, 09:10 PM	#43 (permalink)
ProfessorDave A True Z Fanatic Join Date: Jul 2010 Location: Scranton, PA Posts: 1,580 Drives: In the fairway Rep Power: 18	RX8 felt like it was going to go airborne at high speeds. Probably due to the lightweight wankel. __________________ Rain, snow, sleet, hail: 2009 Mazda 3 sGT HB Everything else: 2009 370z, PW Touring 6MT

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07-12-2010, 09:43 AM	#31 (permalink)
KillerBee370 A True Z Fanatic Join Date: Mar 2009 Location: So Cal baby! Age: 51 Posts: 5,964 Drives: with passion Rep Power: 321	It's got a limiter. When Technosquare tuned my ECU they removed the top speed limiter which obviously means there was a map in the ECU for such a thing to begin with. The end.

07-21-2010, 10:57 PM	#33 (permalink)
jhh343 Base Member Join Date: May 2010 Location: Austin Posts: 25 Drives: '10 370Z 6MT Rep Power: 14	I am pretty sure that the car is computer limited to 155 because it is sold with W rated tires. I think their safety rating is right around 155 because they can't dissipate as much heat as a Z rated tire.

07-22-2010, 01:18 PM	#34 (permalink)
carvalho360 Base Member Join Date: Jul 2010 Location: Philadelphia Posts: 114 Drives: 09 370z black Rep Power: 14	not saying i was driving or anything :P ...but if i could hit 152 in my 04z i think the 370z could easily break 160 (if it wasnt for a limiter)

07-23-2010, 04:29 PM	#40 (permalink)
stacy001 Base Member Join Date: Jun 2010 Location: Las Vegas Posts: 73 Drives: 2010 370z 40th 6MT Rep Power: 14	Governor limited at 155

05-02-2011, 11:51 AM	#44 (permalink)
MrHooke Base Member Join Date: Apr 2011 Location: Plantation, FL Posts: 11 Drives: 11 Nissan 370z Red M Rep Power: 14	Great info as always loved the discussion topic. Its always a constant argument between me and my crew. Hooked!

05-02-2011, 12:24 PM	#45 (permalink)
Blue370tt Enthusiast Member Join Date: Dec 2010 Location: Chattanooga TN Posts: 279 Drives: Nissan Juke Rep Power: 14	Ok.....the car IS/WAS limited to 155mph and this limit CAN BE removed with a tune. The car IS NOT drag limited to 160........I KNOW THIS FOR A FACT! I have exceeded 160 and run closer to 170 with no problem. My guess is that the car will go over 180 but I couldnt get there as i ran out of track. I know my car is not the norm on this forum but, I doubt the "drag limited" figure of 160 even without the TT kit.