Im really curious about what the top speed you guys have gone in your miata.
I also would like to know the top speed on the stock miata NA 1.8l and the 99-00 NB models as well. And of course turbo'd and just upgraded cars in general.

thanks

 

until the ecu stopped me like where 115? top speed doesn't tickle my pickle

 

ive done ~125mph on my miata w/ megasquirt and turbo.
overall i topped 145mph (fuel cutoff limited) in mercedes i had ~4 years ago

 

550 mph (loaded in an airplane, and i was sitting in it)

Wanna bridge? Gotta unload one cheap

 

I wasn't aware that the Miata had an ecu top speed cutoff. I always thought stock miatas were just too underpowered to reach the top of 5th/6th.

 

i've hit the top of 5th in both my miata and 240, both stopped around 120 with some left

 

I made 130mph or so at 170rwhp.

 

I went 95 in a prius....

did you know there's a button to change the speedo from mph to kph? confusing for a few minutes in a rental car.

 

Approx 110mph before the limiter cut in.
Car is a Jap import & limited to 180kph (easy to fix that, just can't be bothered tbh)
I read a similar thread recently & with the gearing we have 120-130mph is about the limit. generally.

 

There was never a limit put on anymiata speedo ever that i have ever known off most 1.6's and 1.8's top out in the 110-123 mph range lightly modified or unmodded. Turboed i can snap on 140 or so pretty easy when i have high boost going. But i don't have roads to handle that kinda speed here so i generally stay aroun 120 or so if i wanna wind it out.

 

hm, then maybe my little miata was chuggin along at its fastest

 

ive been around 130 in my turbo miata. i was racing my friend in his BMW and smoked him at a 80mph roll i shifted into 4th and he didn't even come close to my car after that lol i beat him by a good half a football feild away

 

havent really gone too fast in a miata... but hows 167mph in a B5 S4... before his stage 3 K04 upgrade..

(not me driving)

 

145 on the long straight at Moroso road course in a 2006 Z06. Same straight in my car with the JRSC@180 rwhp, 110-112

 

went 180km/h in my miata only have an intake and borlacat back, and high-flow cat everything else stock
edit: opps forgot the headers

 

only done about 100 in the miata, but it was still pulling hard. did and indicated 175 on my 02 zx9r, and indicated 167 on my 06 gixxer 600, both were also still slowly pulling

 

probably around 110-120, i rarely get on the highway so i usually keep my speeds under 80mph on regular roads

 

about 130, a little under was still pulling a little(almost redlined though).. blew off a charge pipe. I went 118 stock motor topping out my 1.6 just about.

 

i just did 120 in 4th on the dyno.

on the road i've had the car up to 140ish

if you wanna know what models will do what max speed in each gear use this page http://www.fatboyraceworks.com/gears/

you have to full in tire size, gearings, and your diff ratio(final drive)

you can get gearing info at http://members.aol.com/solomiata/Drivetrain.html

final drive ratios:
90-93 - 4.30
94-97 - 4.10
99+ 5 speed - 4.30
99+ 6 speed - 3.90
MSM - 3.90

(i think)

before you wanna question my 120mph in 4th on the dyno:
5 speed with 3.90, 215/45/15.

 

with fresh oil change i hit 135 6th gear at around 6600 rpm in my 03 stock miata there was no cutoff switch it just wouldn't go anywere and there was no more highway space