I've seen around 95mph in 3rd at redline on mine.

Funny 1st, 2nd and 3rd gears on my Z, peak out (mph) at the same as my 4 banger Nissan truck.

meaning that...

1st around 40 mph.

2nd around 65 mph

3rd around 95 mph.

I think I may have hit redline once in the Z in forth but don't recall the speed.

I was within a couple hundred rpm's from hitting redline in 5th in the Z and it read 150mph.

 

Really? i'm pretty sure my speedometer exagerates a little bit. I set the cruise control to 75 and then reset my mpg/avg speed idicator. A minute later it calculated my average speed at 73.8. My speed did not change the whole time. I'm guessing the average speed was closer to the truth since it's presumably using distance versus time to calculate speed rather than just reading a sensor.

To the OP...I assume you checked if you're still hitting the same RPMs? I know for a fact my car can do an indicated 95+mph in 3rd.

 

never even tried it

 

Anyone have any suggestions? Im on stock tires with plenty of tread. When i first got the car about 2 months ago it hit 97 mph at the top of third. now it wont go past 92 mph but I know it is pulling harder than it was stock. The clutch feels fine.

 

There is proabaly more than a few factors that could cause a few MPH difference.

Tire PSI.
overal tire diamter due to tire wear.
Outside air temp.
wind.
gas.
up hill vs flat, vs downhill.

 

Hi Guys,

Assuming stock conditions, here is the drive ratio and top speed at redline for a REVUP engine. Breather mods won't affect this table in any way.

Only different gears and tire diameters can change these values.

 

thank you, I went out tonight and did hit 94. I remember it hitting 97 though. wierd.

 

Our tackometers arent necessarily the most accurate guages. They can easily be off that much.

 

Lol

They just don't get it do they ! aha

To the others, the speedometer get's it's signal from the VDC/ABS system. That system has no clue of what the tire size or what exhaust you run...