I have a 90 240SX and I was racing a Civic on the freeway and I had passed him and was going about 115mph in 5th gear when the revs suddenly dropped and he passed me. Any way to get rid of the rev limited or speed governor? Will a Apexi S-AFC solve the prob?

 

the apex rev/speed will
so will unclipping the VSS comming off the tranny

 

thanx for the help

 

but dont 4get if u cut that off, your cruise control is gone, and also your speedometer gauge?

 

first things first-DISCONNECT_ it
don't cut anything.
i you plan on runnin that day then UNCLIP IT
plug it back in later.

 

yes disconnecting it is the cheap way of doing it but not the best or safest.....i would just go out and buy a new ecu....i recommend the one from apexi....i have it and i like it alot



snake

 

Which ecu do u have from apexi? the commander fc?

 

Hey, here's a bit of advice.

Located on the Stock ECU is a yellow wire with a green stripe (about 8 wires in). If you cut this wire you get rid of the speed governor. Then you are able to go to 120-125 before the rev limiter kicks in. To get rid of that, you unplug the signal sender from the back of the tranny so the engine cannot read RPM's and you can go about 150

 

If u cut the wire to the tranny then the tach wont work right? I dont think a 240 can get up to 150mph.

 

as far as the 240's top speed goes.....It is built with the same characteristics as the Skyline and SR20DET combined into one. Most stock Skyline tranny/differential combos can run about 155-160mph, SR20DET's do about the same for top end. The 240SX has similar tranny gears and almost actually, slightly higher differential gearing than the Skyline GTR which would put it close to its mark. Just my 2 cents....

Night

 

Whats it cost for a new ecu? one that doesnt have a speed limiter.. also with this ecu how fast can you go (like without being past redline).. and where can you get the new ecu?
Sorry for the newb questions, i dont know much about 240s and i want to know as much as possible before i buy one
Alex

 

i think as far as US dealers go people say they like Jim Wolfs stuff. i also hear that JW will have you waiting for months to get stuff.
i guess i would go with the Apex'i Rev/Speed
it will eliminate(sp) the rev and speed meter and allow for cool speed readbacks on the "pretty" screen..as my girl would say........

there are static chips you can use i guess also , but i don't use a rev remover anyway at the moment.
i'll save my KA for later use and "try" to keep it healthy.........

just check around at a few sites and see what will suit you budget and cars purpose


rude

 

If you get just a replacement ecu will it still kill your speedometer and your tach? and is there just a replacement ecu instead of just that apexi thing for 250$ ?
alex

 

yeah... there are always other op[tions (almost) when it comes to tuning....
uhhh lets see if this works

www.jimwolftechnology.com
and www.stillen.com

you can get the complete ecu. and have it perform according to the mods you have IE: wheel size and ****.\

what about that place
www.superchips.com ?

 

a "Stock" 240 may not have the hp to reach those speeds but with a few extra hp it will. especially the S13 with it's ultra low Cd