8years

I have a JDM 2000+ series 8 FD3s. does anyone know which pin in the ecu is the speed limiter? got a device for removing the speed limiter but the manual doesnt say where it is, and also all the rx7 manuals i have downloaded is for the series 6 FDs

FD3S2005

iTrader: (11)

do fd's even have a speed limiter??

8years

yep

cuts off the engine at 180km/h, well the jdm speedo only goes up to 180km/h, where as the local ones have 300km/h speedo

FD3S2005

iTrader: (11)

180 km/g thats only 111 mph that cant be right i 140 was my max (afraid to go any further)

JDawG707

i've gone 165 but PFC FTW lol

FD3S2005

iTrader: (11)

i hate when ppl say FTW i really do...

8years

sorry to sound like a noob, wat does FTW mean?

and yes, its definately 180km/h max.. i've maxed it out and it stops the engine going any further, on a track of course... no hooning around the public roads for me.

so does anyone know where the speed limiter wire is located on the ecu?

rexhvn

I don't know what FTW is as well lol. On the ECU, in the passanger side, there should be a green and white wire I beleive... cut that and your free.

FuseKazuki

ftw = for the win

ITR

iTrader: (1)

You need a top speed delimiter :

http://www.thor-racing.co.uk/Top_Speed_Delimiter-48.asp

CareBear

Can I control this with FC-Datalogit and PFC? 180 km/h limit is annoying, but I've never reached it (I have JDM import).

8years

i got an apexi rsm, its got a function that allows u to increase the top speed to more than 180km/h. and also shows speed and rpm... pretty useless, but its the cheapest device i can find that gets rid of the speed limit.

but i just gotta find the wire to cut and connect onto the rsm.

rexhvn

I just cut the limiter wire off the ECU...

Mahjik

iTrader: (1)

Euro models do.


https://www.rx7club.com/3rd-generation-specific-1993-2002-16/taking-speedo-dash-out-delimit-j-spec-fd-584497/

seanfd3s

I have the same things and couldnt get it to work so I just Cut the green/red line or pink on the apexi rev limiter that ran to the ecu from it, and it will go untill it runs out of power I had to do the same a few years back though I cant remember which thread it was but ill keep looking.
Sean

seanfd3s

Eureka https://www.rx7club.com/showthread.p...hlight=jdm+ecu

RX729

Just cut the speed limiter wire off...

BADSVN2000

Hey guys, well I dont mean to flog a dead horse by re-visiting this issue/thread but I have a JDM 1992 FD. I took her out and tested the top speed and it seemed to top out at 180kph. I have searched the forum and found there is a wire that I can cut by the ecu. There is also the option of having a plug in ecu, I have a PFC (i had this same PFC in my last FD, no speed cut) but I was wondering if the ecu should automatically disarm the 180 cut or if you have to tell it to. I can just cut the wire but wanted to know peoples thoughts on this sensitive issue. I dont want to go cutting wires if I do not need to.

RLaoFD

iTrader: (6)

FTW = for the win.

i didnt know that the euro models had speed limiters on them i thought all were drag limited depending on the power of the car.

you learn something new every day

Zebb

No they dont, only JDM.

Just cut the wire.

BADSVN2000

Ok I will cut the wire. I guess I was just wondering if the pfc would eliminate the need to cut it even with the stock settings.

street_racer_271

is it bad for the engine or stock turbo's to exseed 180k's? i wouldn't think so since mine's the middle of 4th gear, it just gets to 180 way to fast to top out at that. Also would the needle on my cluster keep going past the 180 mark an break once it gets to the resting pin at 0?

BADSVN2000

no and no. Unless you are doing it every 5 minutes! the speedo just stops at 180 but the car keeps going. I had my last FD wound almost to redline in fifth gear,dunno how fast that was but it was DAMN fast!!!

seanfd3s

Well no worse then any other car as long as it is in ok operating order , dont know on fds because i have a MPH gauge but my jeep i had maxed at 80 mph gauge and when i went faster just went on the black side of the gauge.
Get a Apexi rev/speed gauge you can up the speed cut w/o cutting the wire and at the least you can get a accurate digital reading of your speed or tach.

MuRCieLaGo

iTrader: (14)

I cut the wire but the engine won't start !!! I ned to plug it back together to repair the problem ! But I saw that I need to cut THIS wire, is it true?

https://www.rx7club.com/attachment.p...6&d=1122286149