95 240 gear ratio

[xero1]

whats the top speed of a stock 95 240, and does anyone know whats the max mph in each gear?

[ddgsxr504]

Well stock on a 95 5 Speed is 115mph because of the fuel cut, w/automatic there is no fuel cut so no top speed as far as I know just what ever the car will do! As for top speed in each gear, use the search button on top right of this forum!

[drifter_for_life06]

yea the AT doesnt hve the fuel cut...unless IIRC it has a 5spd ECU?

but the speed for each gear has been discussed before

[xero1]

whats the rpm at 70 mph on an s14(ka24de transmission) in 5th gear?

[vvaffle]

Around 3k or a little more, I think.

[ddgsxr504]

Good Call, 3200rpms to be precise though!

[xero1]

so are gear ratio in a 95-98 240 the same as a 89-94 transmission?

[Tulsa_S-13]

Interesting you brought this up, I just got done figuring out all this last night using different differentials.

This is for a 240sx 5spd with 15inch wheel, 205mm 50 series with the stock 4.08 final drive with a redline of 6500rpm

1st: 32.93mph2nd: 57.49mph3rd: 83.69mph4th: 109.35mph5th: 144.07mph

S13 4.36 final drive (180sx), 205/50/15 tire

1st: 30.81mph2nd: 53.80mph3rd: 78.23mph4th: 102.32mph5th: 134.81mph

S13 3.916 final drive (J30), 205/50/15

1st: 34.30mph2nd: 59.90mph3rd: 87.10mph4th: 113.93mph5th: 150.10mph

Dang, ok well I just realized that when tried to find my radius of my tire I accidentally took 205 and divided it by .50 instead on my actual tire series (.60) so oh well. These should be close enough numbers. BAH!! Now I'm going to ahve to redo this because a 205 60 series would be 123mm whereas a 205 50 would be 102.5... I'll edit this later.

[drifter_for_life06]

those seem about right

now if only i could get up to those speeds...

[ddgsxr504]

I have gotten close in my S14, I have the JWT Cams and Tuned ECU among a bunch of other things. All you have to do is emilinate the fuel cut, man I hate cars that have speedos above what the car is set to do!

[240DRFT]

man, the fastest ive gone was only 106 in my car

[sean8564]

my tach doe not work in My rb25 cause i used th Skyline speedo is stead it stopped my govener I was clocked at 126 at 4K rpm with another 3000 rpm to go just thought i would share. I am useing a open diff now but will go with the 4.09 gear VLSD

[Tulsa_S-13]

For everyone that wants to figure out their theoretical speeds here's how I did it.

Hmmmm..... Ok keep in mind you need to know that Circumference is C=2piRadius And to get your sidewall height its simply your tire width times tire series (Ex. 215mm*60% or .60)

RL:Redline rpm FD:Final DriveTG:Transmission gearingTW:Tire Width<---- millimeters You convert this in the formula using 25.4TS: Tire SeriesR:Rim radius (Ex. 15inch rim, 7.5" radius)<-----Inches WRPM: Wheel Rotations per minute So, RL/FD/TG=WRPM then, WRPM*2pi(((TWxTS)/25.4)+R)=_ _ _ _ _ in/min so to convert that to mph you take your _ _ _ _ _ in/min. x 60 is _ _ _ _ _ _ _ in./hour divided by 12 is _ _ _ _ _ _ ft/hr divided by 5280 converts that to MPH

Hope everyone understands that. Have fun and experiment with different RPMs to see how fast you go at what given RPM, it doesn't have to be redline.

[sean8564]

I wonder is there a program where we can just punch in the numbers and it spit a answer.