S14 SR20DET Cuts @ 100MPH & Above

DToYsMK3

Member
I was w/ my boy in his S14 last night and @ about 100 MPH or so the car sounded to me like it fuel cutted, but i dont know fuel cut being so high in the MPH range...I pinned the speedo b4 and it never cut or anything of that sort...I'm a little confused on how it happend now and not b4...It's an S14 SR VTC/T-28 @ stock boost 8PSI/Stock Injectors/FMIC & exhaust upgrade & a walbro pump. I thought it might be a speed cut but it didnt do it when i pinned the speedo. Can anybody shed some light on this plz?
 
i heard there are 2 speed cuts, 1 is the speed sensor in the tranny that cuts it at 110-116mph or so, and i heard there's another 5th gear sensor. I don't have the speed sensor hooked up, but in 5th gear at 6krpm i get a fuel cut. I have s13 SR, it definitely has more to go but it cuts at 6krpm and when it drops back down to 5800rpm i can accelerate again...:ugh:I think thats around 135-140mph or so. haven't done the gear ratio/speed calculator.
 
i heard there are 2 speed cuts, 1 is the speed sensor in the tranny that cuts it at 110-116mph or so, and i heard there's another 5th gear sensor. I don't have the speed sensor hooked up, but in 5th gear at 6krpm i get a fuel cut. I have s13 SR, it definitely has more to go but it cuts at 6krpm and when it drops back down to 5800rpm i can accelerate again...:ugh:I think thats around 135-140mph or so. haven't done the gear ratio/speed calculator.

Oh realllyyy (scratching chin) Thats exactly like what we experienced...Where do you think the secondary cut comes from...I've heard there is a pink wire going to the ECU thats the vehicle speed sensor(dont quote me on this MIGHT be wrong) Can the tuned get rid of this secondary cut and/or a fuel cut defencer?
 
Thanks dude...He plans on getting a nistune in the near future, the nistune is mapped to rid the speed cut right?

Yeah, there's a speed limit adjustment in the functions table in the nistune software. If you are interested in getting some tuning done, LMK
 
The fuck were you doing going 100mph anyway? I'm hoping it was @ the track and not the streets, if not you're lucky you didn't get pulled over. My boy just got a $300 ticket for just 20mph over the speed limit.. going 100mph I'm sure you get worse punishments + a fine.
 
Yeah, there's a speed limit adjustment in the functions table in the nistune software. If you are interested in getting some tuning done, LMK

When you buy the nistune it comes with all the needed software right? Lemme get this str8 it comes pretuned for a certain setting & you can also hook it up on the laptop and adjust other things such as speed limit adjustment ETC ETC...Thanks ill definatley let you know i think hes gonna be getting it in a month or so.

The fuck were you doing going 100mph anyway? I'm hoping it was @ the track and not the streets, if not you're lucky you didn't get pulled over. My boy just got a $300 ticket for just 20mph over the speed limit.. going 100mph I'm sure you get worse punishments + a fine.

Lol us 27 man...Got new tires/ empty road for about 2 miles ahead...Thats a good combo to squeeze!!!
 
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When you buy the nistune it comes with all the needed software right? Lemme get this str8 it comes pretuned for a certain setting & you can also hook it up on the laptop and adjust other things such as speed limit adjustment ETC ETC...Thanks ill definatley let you know i think hes gonna be getting it in a month or so.

no, you would have to socket the ecu and get a sister board, then a datalink cable to a laptop. The software comes with templates for most nissan applications and you pretty much have to tune it from scratch (this is where i come in). I can prolly get the ecu socketed for you too. Well, that's one way of doing it at least. the other way to do this is to socket the ecu and get an eprom chip and an ostrich 2.0 chip burner.
 
no, you would have to socket the ecu and get a sister board, then a datalink cable to a laptop. The software comes with templates for most nissan applications and you pretty much have to tune it from scratch (this is where i come in). I can prolly get the ecu socketed for you too. Well, that's one way of doing it at least. the other way to do this is to socket the ecu and get an eprom chip and an ostrich 2.0 chip burner.

When you say socketed you mean chipped right?
 
Lol us 27 man...Got new tires/ empty road for about 2 miles ahead...Thats a good combo to squeeze!!!

careful roadwarrior... there are a bunch of undercover troopers running around 27 late nights.. during the day you are safe.
 
careful roadwarrior... there are a bunch of undercover troopers running around 27 late nights.. during the day you are safe.

Lol thanks yea i know, me & a friend of mine got roped like 2 years back on 27 in his supra, well he got roped i was just an innocent passenger lol.

nope, i mean socketed, lol

meaning you have to solder in a type of j-port that you can plug and unplug chips from

ohh okay...I'll definatley let u know when he gets it maybe we can organize a time to meet up somewhere or whatever.
 
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Lol thanks yea i know, me & a friend of mine got roped like 2 years back on 27 in his supra, well he got roped i was just an innocent passenger lol.

silver charger, drk green jag, dark red jag, yellow m3, black firebird they are all undercovers i drive 27 all the time cause thats where i live and i get pulled by them all the time most of them are cool but the guy in the m3 is a dick
 
silver charger, drk green jag, dark red jag, yellow m3, black firebird they are all undercovers i drive 27 all the time cause thats where i live and i get pulled by them all the time most of them are cool but the guy in the m3 is a dick

Oh damn it was the silver charger that pulled us that time...Never saw the rest of them but ill def keep my eyes peeled for the others
 
The fuck were you doing going 100mph anyway? I'm hoping it was @ the track and not the streets, if not you're lucky you didn't get pulled over. My boy just got a $300 ticket for just 20mph over the speed limit.. going 100mph I'm sure you get worse punishments + a fine.

i got a 149 in a 65 impounded car went to jail lost my lisance for two years shits no joke since then i dont speed at all
 
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