can anybody tell me whats the top speed of a stock 89 240sx? my speedo dosent work , i know that on the 5th gear at 4000rpm the motor shuts down , and starts back at 3000rpm

1st question : how can i repair my electronic speedo?

2nd question : how hard is a dual guage conversion( saw one on the fast abck vesion)

3rd question : how can i '' easily'' unlock my top speed?

my car is completely stock! but it sucks to have a very low top speed !

 

speed cut is set at 115mph, Im hearing that you can just unplug your 4th and 5th gear sensors off your tranny to lose the speed cut. For some reason it didnt work on my car.

 

If ur doin it that way u also need to install a switch to cut the speedo signal. A switch cause when u kill it u lose the speedo display.

 

On my stock 92 I have burried the speedo past 180km/h while still accelerating....it never cut out, do all the cars have a limiter?

 

auto's don't have the limiter.

Search around, i think there is even a sticky about this.

 

There is a reason there is a limiter at 115. The car is not meant to handle higher speeds in stock form. I wouldn't recommend taking off the limiter without brake upgrades/suspension work. Just seems dumb to me. How are you gonna stop while doing 140?

 

for some reason , cutting the 4th and 5th gear sensor didnt work for me too , and for some other reason cutting the yelow green striped wire didnt work either.... my speedo dosent work so i dont know how fast im going when it cuts off. any ways tel me how hard would it be to remove the electronic speedo and put on the 2 gage speedo.

 

did you search?

 

That would be a no....especially because he was olivious to the fact that there is a sticky in the General Forum

 

is there some years or models they have it and some that dont? i have a 95 se 5 speed and it dont kill at 115. i have got it up to 125 (just to see if it would) and it never cut off and would have done some more. but it would have taken alot more road to get more cause there wasnt alot of power left and some where between 1000 to 1300 rpms left. just alittle confused..

 

it's 115 with the cut. dohc tops out at 145 without.

i don't know about sohc.

do a search on "green wire"

 

I got 130 haha