i was just wondering what the top speed of a 86 na would be i have gotten mine up to 120 but i don't get that many oppertunities for that

 

I got my old stock gxl to 120 in 4th and 5th just bogged down, not enough HP to pull it. I bet I could hit 135 in my gutted 87 base with header

 

before i got my t2 i had an 88 se and got it up to 133

 

got mine up to 140 once but mines an s5

 

This ain't an N/A, but its a production car

 

Where can I sign up to buy one?

 

had my 88 se up to alittle over 140 several times. just intake,exhuast,timing.

 

The stock '86-'88 n/a's were rated from the factory at a top speed of 127 mph. I had mine up to 135 once but it took a while to get there. My friend had his S5 up to 140 before it would go no more.

 

the car in that picture flipped on one of the high speed runs and was then upside down, spinning, at 200MPH... that'd be a scary ride!


I don't trust my speedometer (or any stock speedo, for that matter) but I've had my car to 6300RPM in 5th gear... what's that work out to?

 

That wasn't the one, it was the 3rd gen one...

My 91 NA with full exhaust did a close to 140MPH, once and only once...

 

I got mine up to 70MPH on two wheels! When I was towing it home...

 

lol. i think alot of us have done average road speed on two wheels if we think about it!!

 

Does anybody know the speed limiter on s4 and s5 cars?

 

I'm not aware of any limiter on these cars.

 

Just the answer I was looking for!

 

I was able to get past 140 in my na

 

its rated at 135 mph i think and the turbo's are rated at 149 mph!!

 

in an na fc the top speed in 5th gear at 7000 rpms with a 4.1 rear end is 189 mph. Look for a gear speed calculator online. It will tell all.

 

Not quite. A gear calc will tell you the gear-limited top speed, but won't tell you if you have the power to pull to the top of your gearing. In the case of a stock NA FC, it should be around 130-135. That tall 5th gear is for better mileage, BTW.

 

how much of a difference will smaller or larger wheels and/or tires affect mph and top speed?

 

Check it on a tire size calculator. miata.net has one. It might cause the top speed to go up or down with smaller diameter, as it depends on the rpm/hp at the top speed you're trying to achieve.

 

i have done 150+ in the middle of the night of course. very scary. wouldnt do it again

 

got my 88 na 142mph with 3 other people in mine. one sitting shot gun and 2 others stuffed in the back, but i was going down hill and it took awhile.

 

wow long downhill, where were ya?

 

Don't want to burst some bubbles here, but RX7 speedo's are notoriously inaccurate above 110 MPH usually off bye -5 to -10 MPH. So those who say they hit a 140MPH probably were only doing between 130 to 135 MPH.