When I almost hit the redline in 2nd, the speed is just a little over 60 mph. I heard it's supposed to be something like 70 mph, is there anything wrong with my FD?

 

Could it be the speedometer? my mechanic said it's not really accurate

 

I could barely hit 60 in second. I'd say it's normal. You should be lucky to have such low speed gears. Makes you accelerate quicker

 

Accelerate quicker? It's hard to understand

 

anyone know?

 

Well, in gearing a car can be very weird...

Depending what you want your car to do is how you gear it..

If you want it to get up to speed fast you gear it low. But doing that you make your over all speed lower...
You can gear your car for over all speed but the time it takes to get up to that speed is longer since it makes the car work more.

 

What rpm are you swifting at?
Have you changed your tire size in the back?

C

 

I was shifting at approximately 7000 rpm. As for the tires, I guess they're the same size (stock size?).

 

maybe its automatic..
or maybe a slipping clutch///

BUt its probably normal!

 

Well, in gearing a car can be very weird...

Depending what you want your car to do is how you gear it..

If you want it to get up to speed fast you gear it low. But doing that you make your over all speed lower...
You can gear your car for over all speed but the time it takes to get up to that speed is longer since it makes the car work more.

 

are you dragging you car or something?

in any case ill post my little list at the end of the post again so that you can see the gear to mph. the guys that are hitting 70 mph may be running different types of tire/rim combos. i know for a fact that my brothers fd with has 275/40/17 on a 17 inch rim are about 5-8 mph faster then my stocker with has stock tires and rims.

also your speedometer might be off a little, when I drove my dads merc and my brothers drove his fd, it showed that his speedometer was a little off. (im assuming a 50 grand merc would have a little more accurate speedometer then a 30 grand rx-7 but I could be wrong.)


225/50 16" = 24.86" diameter

RPM Speed in 1st gear.
200 1.04
400 2.07
600 3.11
800 4.14
1000 5.18
1200 6.22
1400 7.25
1600 8.29
1800 9.33
2000 10.36
2200 11.40
2400 12.43
2600 13.47
2800 14.51
3000 15.54
3200 16.58
3400 17.61
3600 18.65
3800 19.69
4000 20.72
4200 21.76
4400 22.80
4600 23.83
4800 24.87
5000 25.90
5200 26.94
5400 27.98
5600 29.01
5800 30.05
6000 31.08
6200 32.12
6400 33.16
6600 34.19
6800 35.23
7000 36.27
7200 37.30
7400 38.34
7600 39.37
7800 40.41
8000 41.45
8200 42.48



225/50 16" = 24.86" diameter

RPM Speed in 2nd gear.
200 1.79
400 3.58
600 5.37
800 7.16
1000 8.96
1200 10.75
1400 12.54
1600 14.33
1800 16.12
2000 17.91
2200 19.70
2400 21.49
2600 23.28
2800 25.07
3000 26.87
3200 28.66
3400 30.45
3600 32.24
3800 34.03
4000 35.82
4200 37.61
4400 39.40
4600 41.19
4800 42.98
5000 44.78
5200 46.57
5400 48.36
5600 50.15
5800 51.94
6000 53.73
6200 55.52
6400 57.31
6600 59.10
6800 60.89
7000 62.69
7200 64.48
7400 66.27
7600 68.06
7800 69.85
8000 71.64
8200 73.43



225/50 16" = 24.86" diameter

RPM Speed in 3rd gear.
200 2.59
400 5.19
600 7.78
800 10.38
1000 12.97
1200 15.57
1400 18.16
1600 20.76
1800 23.35
2000 25.94
2200 28.54
2400 31.13
2600 33.73
2800 36.32
3000 38.92
3200 41.51
3400 44.11
3600 46.70
3800 49.30
4000 51.89
4200 54.48
4400 57.08
4600 59.67
4800 62.27
5000 64.86
5200 67.46
5400 70.05
5600 72.65
5800 75.24
6000 77.83
6200 80.43
6400 83.02
6600 85.62
6800 88.21
7000 90.81
7200 93.40
7400 96.00
7600 98.59
7800 101.18
8000 103.78
8200 106.37



225/50 16" = 24.86" diameter

RPM Speed in 4th gear.
200 3.61
400 7.22
600 10.83
800 14.44
1000 18.04
1200 21.65
1400 25.26
1600 28.87
1800 32.48
2000 36.09
2200 39.70
2400 43.31
2600 46.92
2800 50.52
3000 54.13
3200 57.74
3400 61.35
3600 64.96
3800 68.57
4000 72.18
4200 75.79
4400 79.40
4600 83.01
4800 86.61
5000 90.22
5200 93.83
5400 97.44
5600 101.05
5800 104.66
6000 108.27
6200 111.88
6400 115.49
6600 119.09
6800 122.70
7000 126.31
7200 129.92
7400 133.53
7600 137.14
7800 140.75
8000 144.36
8200 147.97



225/50 16" = 24.86" diameter

RPM Speed in 5th gear.
200 5.02
400 10.04
600 15.06
800 20.08
1000 25.10
1200 30.12
1400 35.14
1600 40.15
1800 45.17
2000 50.19
2200 55.21
2400 60.23
2600 65.25
2800 70.27
3000 75.29
3200 80.31
3400 85.33
3600 90.35
3800 95.37
4000 100.39
4200 105.41
4400 110.43
4600 115.45
4800 120.46
5000 125.48
5200 130.50
5400 135.52
5600 140.54
5800 145.56
6000 150.58
6200 155.60
6400 160.62
6600 165.64
6800 170.66
7000 175.68
7200 180.70
7400 185.72
7600 190.74
7800 195.76
8000 200.77
8200 205.79

 

7000 is not near the redline the redline is 8000 I think the buzzer comes on at 7500
but I don't feel any fuel cut until after 8000.
Also in the post which list rpms and gear to speed 72 mph is right at 8000 so almost at redline would be 70. Guess what nothing wrong with your 2nd gear speed.