Rich fuel symptoms - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

WangonwWarrior · 10-27-2008, 10:16 PM

I know the symptoms of a car when it is running rich, but is this one? I have a problem where it feels like my clutch is slipping. I can floor it in second gear and the rpm's shoot up to redline and the car goes nowhere. However if i lean out the fuel on my safc2 it no longer does this and is still producing plenty of power and the car moves consistently with the rpm and i feel no "slip" I have a KA24DET S14 with aluminum flywheel and new oem clutch. Is my clutch really slipping and when i lean it out it majically stops slipping or is my clutch not slipping at all and my car is just too rich? My friend argues their is no way it has anything to do with fuel delivery he says i just need a better clutch even though im not pushing anywhere near 230hp.

Bad clutch or too rich???? i know its a stupid question but i just want to know for sure. Thanks

eclipse_dsm · 10-27-2008, 10:28 PM

If your rpm shoots up as you floor that's definitely the clutch slipping. Running rich is the opposite your car will just bog.

WangonwWarrior · 10-27-2008, 10:33 PM

Quote:

Originally Posted by eclipse_dsm

If your rpm shoots up as you floor that's definitely the clutch slipping. Running rich is the opposite your car will just bog.

When i lean it out though it no longer does this and it does not bog when i lean it out, it runs much better.

eclipse_dsm · 10-28-2008, 01:08 AM

Ok.. Maybe it's time you take your car to a dyno. This way you'll get better idea with your afr's and also verify clutch slips. GL!

Walperstyle · 10-28-2008, 01:48 AM

and damnit, POST THE ANSWER

I'm doing a KA-T setup here at home and I might come across the same problem, who knows. (sounds just clutch to me)

WangonwWarrior · 10-28-2008, 09:40 AM

Quote:

Originally Posted by Walperstyle

and damnit, POST THE ANSWER

I'm doing a KA-T setup here at home and I might come across the same problem, who knows. (sounds just clutch to me)

Ill let you know, dyno day is coming soon. I know a few pple who have run across this problem i will let you know whats up.

mxsx25 · 10-28-2008, 05:18 PM

time to get a tune... thats real wierd...

LFOabuse · 10-30-2008, 05:28 AM

Was the rear main seal replaced when your new clutch was installed?

Could be oil leaking on the clutch casuing the slip. Either that or you could have glazed the clutch.

If RPM is going up quiclky and you're going nowhere fast the clutch is slipping.

AFR being too rich will cause the car to accelerate slowly in both RPM and Speed.

WangonwWarrior · 11-05-2008, 08:19 PM

Yup the tuner said my clutch is slipping... Stock clutch FTL

10-27-2008, 10:16 PM	#1
WangonwWarrior Zilvia FREAK! Join Date: Jan 2008 Location: Amerika24 alabama: Where if your not first..... your last Posts: 1,163 Trader Rating: (15) Feedback Score: 15 reviews	Rich fuel symptoms I know the symptoms of a car when it is running rich, but is this one? I have a problem where it feels like my clutch is slipping. I can floor it in second gear and the rpm's shoot up to redline and the car goes nowhere. However if i lean out the fuel on my safc2 it no longer does this and is still producing plenty of power and the car moves consistently with the rpm and i feel no "slip" I have a KA24DET S14 with aluminum flywheel and new oem clutch. Is my clutch really slipping and when i lean it out it majically stops slipping or is my clutch not slipping at all and my car is just too rich? My friend argues their is no way it has anything to do with fuel delivery he says i just need a better clutch even though im not pushing anywhere near 230hp. Bad clutch or too rich???? i know its a stupid question but i just want to know for sure. Thanks __________________

10-28-2008, 01:48 AM	#5
Walperstyle Nissanaholic! Join Date: Nov 2004 Location: Alberta, Red Derp Age: 43 Posts: 1,729 Trader Rating: (0) Feedback Score: 0 reviews	and damnit, POST THE ANSWER I'm doing a KA-T setup here at home and I might come across the same problem, who knows. (sounds just clutch to me) __________________ KA-T ORG-Function over Flush

10-28-2008, 05:18 PM	#7
mxsx25 Zilvia Junkie Join Date: Sep 2007 Location: hudson NH Age: 35 Posts: 415 Trader Rating: (0) Feedback Score: 0 reviews	time to get a tune... thats real wierd... __________________

10-30-2008, 05:28 AM	#8
LFOabuse Leaky Injector Join Date: Nov 2006 Location: Los Angeles Posts: 74 Trader Rating: (4) Feedback Score: 4 reviews	Was the rear main seal replaced when your new clutch was installed? Could be oil leaking on the clutch casuing the slip. Either that or you could have glazed the clutch. If RPM is going up quiclky and you're going nowhere fast the clutch is slipping. AFR being too rich will cause the car to accelerate slowly in both RPM and Speed. __________________ ...

11-05-2008, 08:19 PM	#9
WangonwWarrior Zilvia FREAK! Join Date: Jan 2008 Location: Amerika24 alabama: Where if your not first..... your last Posts: 1,163 Trader Rating: (15) Feedback Score: 15 reviews	Yup the tuner said my clutch is slipping... Stock clutch FTL __________________

10-27-2008, 10:28 PM	#2
eclipse_dsm Zilvia Junkie Join Date: Jun 2005 Location: DriftHeaven Posts: 411 Trader Rating: (3) Feedback Score: 3 reviews	If your rpm shoots up as you floor that's definitely the clutch slipping. Running rich is the opposite your car will just bog.

10-28-2008, 01:08 AM	#4
eclipse_dsm Zilvia Junkie Join Date: Jun 2005 Location: DriftHeaven Posts: 411 Trader Rating: (3) Feedback Score: 3 reviews	Ok.. Maybe it's time you take your car to a dyno. This way you'll get better idea with your afr's and also verify clutch slips. GL!