CapitanCombo

Today coming to the office i could not pass 160 Kmh in 5th (more or less 100mph)
i floored it but no chance
i downshifted in 4th and there where no problems up to the redline
so i tried again but ... bump no more than 160
i kept it floored a little while and then it hiccupped a bit 'til 180 but then stopped again, really like a rev limiter
i tried no more and slowed down

what could it be????

Mr rx-7 tt

iTrader: (5)

That's only the top of third gear...

particleeffect

jdm car? jdm speed limiter 99% sure. might be able to chip it, but an aftermarket ecu will fix it also.

CapitanCombo

Yes completely stock
but rev limiter is not supposed to work at these revs

skunks

speed governer... no revlimiter on a fd dude

CapitanCombo

That's it
so why it switches on at this speed?

BTW how does it works, i mean how can it control speed? changing advance? hope not

TwinTurbo93

I don't know about the european version FD's but our version (USA) with stock ECU will shut off @ 159MPH,
the speed governer will not allow you go over that mileage no matter which gear you are!

CapitanCombo

I always had been able to go over
but today, no hope!

TwinTurbo93

Than you must have another problem somewhere.
Try discribing little more how your car acts in idle and acceleration when shifting gears.
Do you feel a difference from before?

teamstealth

USA cars have speed govenors?! weird...i didnt think they did. Ive never had the chance to test it out, tho as ive had boost problems and/or court supervision for a ticket until now

luneytune

FD's do not have speed governors or other limiters. It has fuel cut at greater than "X" psi but thats it.

My bet would be pssible fuel filter clogged or bad plugs, do you have normal boost in 3rd and 4th?

T88NosRx7

iTrader: (1)

so you can go over that in 4th, but not in 5th?

911GT2

You were at redline in 4th gear? Whats that like ~140mph? Thats scary fast on public roads.

DjRannyKan

my toyota solora is governed at 118mph
-does it fell like you let off the gas??

Kento

He's in Italia, where they have the autostradas that are like the autobahns in Germany. If there's no traffic, many of them are fine at that speed, believe or not.

Larz

Lives in Italy and has better spelling than most americans on this forum.

Kento

Heh...gotta agree there, Larz.

911GT2

Yeah, I'm a little slow. Thanks for pointing that out.

Kento

No worries. I just wish the average drivers over here were half as good as the majority of drivers over there. Over there, the fast lane is just that; it's reserved for the traffic that is able to cruise at the faster speed than most. So when people see you coming up behind them (yes, they actually know how to use their mirrors over there), they immediately move over to let you by. Basic highway traffic etiquette-- what a concept. They don't doddle along at 55 mph, oblivious to the fact that they're holding up a line of 15 cars in the fast lane.

rynberg

Some of these responses are astounding. Do you people know anything about your own fricking cars?

USA FDs do not have a speed limiter of any kind. There is a fuel cut at overboost and there is also a rev limiter that kicks in at 8300 rpm.

I don't know about European market FDs but it sounds like something else is effecting your car. Is your car completely stock? What is happening to your boost levels when the cut happens?

TwinTurbo93

I know I read it somewhere, a while back though, but I can't remember where in the hell it was.
I'm not making it up, it was a magazine of either Motor Trend or Car and Driver or some other car mag.

rynberg

You misunderstood. The car mags reported a top speed that was DRAG LIMITED. There is no speed limiter on the FD. Period.

Tom93R1

iTrader: (2)

US FD's have a speed limiter, it is called a "my car doesnt have the power to go any faster than 159 mph" limiter. The limiter is adjustable, add more power and the limit goes up.

rynberg

TwinTurbo93

I guess I must off misanderstood, thanks for clearing it out for me.