I am trying to find a definitive answer. - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

weshole · 06-07-2009, 11:46 PM

I have an SR swapped S13. It is equipped with a #63 ecu and no tuning software at all over and above this. The issue I really have is in 5th gear and that gear only, it has a rev limit of 5300 rpm. I have spent countless hours reading on this and have not come up with any answers as to why this is. Read all the transmission sensor threads only to realize that the SR trannies dont have all the sensors attached to it that the Ka trans does. Does znyone have an answer as to why this is happening?

R@ddy · 06-07-2009, 11:55 PM

it's a stock speed limiter from nissan

I LUV MY S13 · 06-08-2009, 12:24 AM

dosconnect 5th gear sensor harness

weshole · 06-08-2009, 12:29 AM

Quote:

Originally Posted by I LUV MY S13

dosconnect 5th gear sensor harness

There is no 5th gear sensor on my trans. only vss, neutral safety switch, and reverse light switch.

I LUV MY S13 · 06-08-2009, 12:33 AM

wat codes does ur ecu throw out?

weshole · 06-08-2009, 01:52 AM

No codes. Everything operates in tip top shape. I am nearly as fast in 4th as I am in 5th gear is all.

Sileighty_85 · 06-08-2009, 02:04 AM

are you hitting 120mph? If so then you are hitting the speed cut

weshole · 06-08-2009, 02:29 AM

Well, the speedo only goes up to 110mph and I am by far, surpassing that. With the J30 gearset/diff, I am assuming its a tad over 120mph. probably by a few mph.

DataXUnknown · 06-08-2009, 03:09 AM

thats the stock governor

i forget how to get rid of it...with a KA i know you just switch to a auto ECU and your good to go, but with SR I think you have to get a tune or some kinda chip.

weshole · 06-08-2009, 07:19 AM

That's what I was coming up with as well. I was looking for reinforcement on that.

murda-c · 06-08-2009, 07:40 AM

looks like somebody's getting a power fc

dori_sil8t · 06-08-2009, 07:42 AM

HKS USA FCD (Fuel Cut Defencer)

weshole · 06-08-2009, 11:38 AM

Quote:

Originally Posted by murda-c

looks like somebody's getting a power fc

Thats's one option that has crossed my mind.

Quote:

Originally Posted by dori_sil8t

HKS USA FCD (Fuel Cut Defencer)

Don't think that will help my cause.

weshole · 06-08-2009, 10:39 PM

So what is giving the signal to the ecu that im in 5th gear when there's no 5th gear sensor? That makes absolutely no sense. It doesnt rev limit in any other gear. unless it does sense off the speed sensor itself. I havent gone that fast in 4th gear to eliminate that from the eqation. I didnt feel the need to rev the engine THAT high.

06-07-2009, 11:46 PM	#1
weshole Zilvia Member Join Date: Apr 2007 Location: Minnesota Age: 53 Posts: 188 Trader Rating: (2) Feedback Score: 2 reviews	I am trying to find a definitive answer. I have an SR swapped S13. It is equipped with a #63 ecu and no tuning software at all over and above this. The issue I really have is in 5th gear and that gear only, it has a rev limit of 5300 rpm. I have spent countless hours reading on this and have not come up with any answers as to why this is. Read all the transmission sensor threads only to realize that the SR trannies dont have all the sensors attached to it that the Ka trans does. Does znyone have an answer as to why this is happening? __________________

06-08-2009, 12:24 AM	#3
I LUV MY S13 Post Whore! Join Date: Dec 2008 Location: Norwalk, Los Angeles Age: 35 Posts: 3,349 Trader Rating: (35) Rides Gallery: I LUV MY S13 Feedback Score: 35 reviews	dosconnect 5th gear sensor harness __________________ -Jorge

06-08-2009, 12:33 AM	#5
I LUV MY S13 Post Whore! Join Date: Dec 2008 Location: Norwalk, Los Angeles Age: 35 Posts: 3,349 Trader Rating: (35) Rides Gallery: I LUV MY S13 Feedback Score: 35 reviews	wat codes does ur ecu throw out? __________________ -Jorge

06-08-2009, 02:04 AM	#7
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	are you hitting 120mph? If so then you are hitting the speed cut __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

06-08-2009, 02:29 AM	#8
weshole Zilvia Member Join Date: Apr 2007 Location: Minnesota Age: 53 Posts: 188 Trader Rating: (2) Feedback Score: 2 reviews	Well, the speedo only goes up to 110mph and I am by far, surpassing that. With the J30 gearset/diff, I am assuming its a tad over 120mph. probably by a few mph. __________________

06-07-2009, 11:55 PM	#2
R@ddy Nissanaholic! Join Date: Jul 2008 Location: SoCal Age: 35 Posts: 1,632 Trader Rating: (32) Feedback Score: 32 reviews	it's a stock speed limiter from nissan

06-08-2009, 01:52 AM	#6
weshole Zilvia Member Join Date: Apr 2007 Location: Minnesota Age: 53 Posts: 188 Trader Rating: (2) Feedback Score: 2 reviews	No codes. Everything operates in tip top shape. I am nearly as fast in 4th as I am in 5th gear is all. __________________

06-08-2009, 03:09 AM	#9
DataXUnknown Post Whore! Join Date: Sep 2006 Location: Mission Viejo, CA Age: 35 Posts: 2,934 Trader Rating: (30) Rides Gallery: DataXUnknown Feedback Score: 30 reviews	thats the stock governor i forget how to get rid of it...with a KA i know you just switch to a auto ECU and your good to go, but with SR I think you have to get a tune or some kinda chip.

06-08-2009, 07:19 AM	#10
weshole Zilvia Member Join Date: Apr 2007 Location: Minnesota Age: 53 Posts: 188 Trader Rating: (2) Feedback Score: 2 reviews	That's what I was coming up with as well. I was looking for reinforcement on that. __________________

06-08-2009, 07:40 AM	#11
murda-c Post Whore! Join Date: Jan 2007 Location: Montgomery County, MD Age: 36 Posts: 3,198 Trader Rating: (1) Feedback Score: 1 reviews	looks like somebody's getting a power fc __________________

06-08-2009, 07:42 AM	#12
dori_sil8t Zilvia Junkie Join Date: Sep 2007 Location: Ontario Age: 42 Posts: 385 Trader Rating: (0) Feedback Score: 0 reviews	HKS USA FCD (Fuel Cut Defencer) __________________ unionautoclub.com

06-08-2009, 10:39 PM	#14
weshole Zilvia Member Join Date: Apr 2007 Location: Minnesota Age: 53 Posts: 188 Trader Rating: (2) Feedback Score: 2 reviews	So what is giving the signal to the ecu that im in 5th gear when there's no 5th gear sensor? That makes absolutely no sense. It doesnt rev limit in any other gear. unless it does sense off the speed sensor itself. I havent gone that fast in 4th gear to eliminate that from the eqation. I didnt feel the need to rev the engine THAT high. __________________

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