i have NO top speed and NO limiter why? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

sil80forme · 05-23-2005, 08:19 PM

ok just curious to why my speedo didnt top out at 118 mph, ok i was being stupid and was racing my buddy in his integra and that new smaller lotus, when i relized that the lotus couldnt pass i looked at my speedo, it was pointing at the "U" in fuel under the speedo on my s13, this is my setup, 91 auto ecu W/ manual trans, 91 wire harness, 96 ka motor, 91 distributer and reverse harness on trans is cut, i rewired my stock HUD cluster harness to work with a 91 analog, speedo works obviously, and tach works, sooo why did i not top out, any ideas, i was thinking that maybe because i had the auto ecu but i had the same setup on my 91 motor and when i got it dynoed it topped out at 118 then i put the 96 motor in and speedo just keeps on goin i had to been doin bout at least 135mph

dct223 · 05-23-2005, 08:24 PM

u have a auto ECU on a 5speed tranny..... next time search, this has been covered a bunch of times...

sil80forme · 05-23-2005, 08:27 PM

But I Had The Same Setup But With A 91 Ka And When I Got It Dynoed It Topped Out At 118, And Now With The 96 It Doesnt?

s13silady · 05-23-2005, 09:07 PM

itsz the ECU... the auto's dont have fuel cuts or rev limiters.. and since you are using an auto ECU with a manual tranny, a fuel cut and you have no rev limiter... i found this out when my friend wanted to get rid of his fuel cut, and i just told him to use an auto ecu which he had already and joila.. no fuel cut...
fuel cuts suck... id rather have an ignition cut.. like the Bee*R one.

Rezlo · 05-24-2005, 01:07 AM

Thank the lord my 97 SR ecu has non of that BS, pretty easy to top over 240kph, got some vid of it while I was chasing down a Opel Turbo but i still need to get it off the Vid camera, i think i toped about 250 neering 6800rpm in 5th

05-23-2005, 08:19 PM	#1
sil80forme Zilvia Junkie Join Date: Jan 2005 Location: philadelphia, pa Age: 40 Posts: 487 Trader Rating: (0) Feedback Score: 0 reviews	i have NO top speed and NO limiter why? ok just curious to why my speedo didnt top out at 118 mph, ok i was being stupid and was racing my buddy in his integra and that new smaller lotus, when i relized that the lotus couldnt pass i looked at my speedo, it was pointing at the "U" in fuel under the speedo on my s13, this is my setup, 91 auto ecu W/ manual trans, 91 wire harness, 96 ka motor, 91 distributer and reverse harness on trans is cut, i rewired my stock HUD cluster harness to work with a 91 analog, speedo works obviously, and tach works, sooo why did i not top out, any ideas, i was thinking that maybe because i had the auto ecu but i had the same setup on my 91 motor and when i got it dynoed it topped out at 118 then i put the 96 motor in and speedo just keeps on goin i had to been doin bout at least 135mph

05-23-2005, 08:24 PM	#2
dct223 Nissanaholic! Join Date: Nov 2003 Location: hella NORCAL! Age: 36 Posts: 1,662 Trader Rating: (4) Feedback Score: 4 reviews	u have a auto ECU on a 5speed tranny..... next time search, this has been covered a bunch of times... __________________ Sfourteen

05-23-2005, 09:07 PM	#4
s13silady Nissanaholic! Join Date: May 2002 Location: Bay Area, San Jose Posts: 1,804 Trader Rating: (0) Feedback Score: 0 reviews	itsz the ECU... the auto's dont have fuel cuts or rev limiters.. and since you are using an auto ECU with a manual tranny, a fuel cut and you have no rev limiter... i found this out when my friend wanted to get rid of his fuel cut, and i just told him to use an auto ecu which he had already and joila.. no fuel cut... fuel cuts suck... id rather have an ignition cut.. like the Bee*R one. __________________

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05-23-2005, 08:27 PM	#3
sil80forme Zilvia Junkie Join Date: Jan 2005 Location: philadelphia, pa Age: 40 Posts: 487 Trader Rating: (0) Feedback Score: 0 reviews	But I Had The Same Setup But With A 91 Ka And When I Got It Dynoed It Topped Out At 118, And Now With The 96 It Doesnt?

05-24-2005, 01:07 AM	#5
Rezlo Zilvia Member Join Date: Jan 2005 Location: Chicago&South Africa Posts: 292 Trader Rating: (0) Feedback Score: 0 reviews	Thank the lord my 97 SR ecu has non of that BS, pretty easy to top over 240kph, got some vid of it while I was chasing down a Opel Turbo but i still need to get it off the Vid camera, i think i toped about 250 neering 6800rpm in 5th