has anyone here taken their 240 above the speed governor (118mph) at 5000rpm? theres still 1250rpm's till redline. what is the actual top speed?

I've officially gone 125mph in mine...w/aid of JWT ECU...I think my friend's said he's got his S14 up to around 135...and another S14 buddy said he got up to 155...

Go and find out! (Be safe)

155 thats impressive. was it worth getting your jwt ecu? where in the cars performance did it help?

well i hit my limiter with ease. but it all depends on when i shift from 4th to 5th gear.

Originally posted by ivan282
155 thats impressive. was it worth getting your jwt ecu? where in the cars performance did it help?

JWT ECU is most def. worth it...if you are going KA turbo, KA or even NOS...it's reprogrammable and really finishes off your bolt ons nicely.

It removes the speed limiter, raises the rev limiter from 6800 to around 7300, leans out the super safe rich setting in the air:fuel ratio, and therefore gives you some more top end