I usually go 5th gear for around or above 120km/h, often 4th too, rpm usually 4,5k, you think is healthy? Constant Cruising speed of course.

 

Cruising at 55 mph or higher I'm in 6th. RPM depends on how much higher.

Ken

 

80mph in 6th is 4k on my car

 

how? i am running at about 6k at 60mph

 

what gear? s1 8? my car is a 6port m/t s1 and 80mph is 4k rpm

 

mine is an s1 and i am running that in 6th gear....

 

Mine is right in line with 200 but i try to keep it over 5k

 

**** i wish i could do 80mph at only 4k rpm in 6th!

 

did you swap the trans or rear?

 

no... maybe it might have been closer to 5k but it still wouldnt make sense.

 

Just checked, 80 in 6th at exactly 4k...

 

Mine hits 80mph in 6th gear at 4k as well, although it's not exactly in the center of the 4k marker but more like in the upper half of it yet not passing it.

 

i will have to double check min but 80 in 6th gear i swear it was at or around 5k

 

Are your tires the exact same diameter as stock?

 

they are 225/45ZR18

 

That's the stock tire size. Sounds like you were in 5th rather than 6th.

Rpm vs gear vs speed is pretty tidy on the manual transmission 8. At 3000 rpm, the speed in gears 2,3,4,5,6 is 20,30,40,50,60 mph.

Ken

 

Tire size is not going to matter if you use the speedo on the car.

Engine is connected to trans, trans is connected to rear end, speed comes off the ABS sensors on the rear end. It should match no matter what the ken^^ post.

At track, I have 225/45 17s, it matches. On street I have 225/50/18s.

the rpm to mph stays the same. 6K at 60 sounds like 4th gear, not 6th.

 

4.5k at 130km/h

 

Ahh op probably has jdm 5 speed not us 6 speed.

 

4k 120km/h, 4.5 130km/h if I remember correctly.

 

3500rpm in 5th sounds healthy (less engine heat) and better gas mileage?

 

Dooh, sorry..

75 mph, or 120 kph, is right about 4,500 for 5th gear. sorry, I read too many posts at the same time, thx logal.

 

6th gear

 

Unless you are like me, in which case 90 mph = 3,000 RPM = ~24 mpg's.

 

isnt your car an autotragic waiting?