car help!! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

hitman · 06-26-2008, 11:17 PM

so it doesnt sound like the wastegate opens till about 5-6k (no tach), ( i have my wastegate hooked up side port on tial-mbc-hotpipe and the top one is open) and the car is way to slow for 3071 at 6psi. the fire ring thing is in
but, it builds 6psi way earlier and holds it to high rpm
the idle is super up and down, but the up parts are still low and it almost stalls. i sprayed starter fluid everywhere and the idle didnt raise so im not sure if its a vacuum leak. but my vaccuum at idle is 16ish when i first start then a few secs later fluxuates between 10-15 depending on what part of its bumpyness its on.
i can kinda hear a fshhhh sound when its boosting, but i am not getting a serious cut out like you do when you boost with a vacuum leak ( i have no cut out whatsoever)
also it smells like the car is running real rich
its not an individual cylinder because when i unplug injector or spark plug in a cylinder it gets worse.
tommys dad redid cam timing no help.
my setup is s15 injectors (reddish/brown), rb20 maf, jim wolf ecu.
any help would be really appreciated

*downshift_sideways* · 06-26-2008, 11:19 PM

wow...I would like to help you..

but I got lost in your post.

can you cliff note it? lol.

or be a little more specific.

BlckBeautyVTEC · 06-26-2008, 11:21 PM

i dont like to see this

hitman · 06-26-2008, 11:28 PM

idle sucks and it feels like boost isnt hitting but my guage reads 6psi cliff notes but i think you need all the info

*downshift_sideways* · 06-26-2008, 11:32 PM

Quote:

Originally Posted by hitman

idle sucks and it feels like boost isnt hitting but my guage reads 6psi cliff notes but i think you need all the info

With that qoute.

I'd say check for boost leaks.

What does your boost gauge idle at when the car is on and in neutral?

hitman · 06-26-2008, 11:33 PM

it fluxates, 10-15, but i checked and sprayed starter fluid seriously everywhere, and my car doesnt cut out like when you hit boost with a vaccuum leak

SDS13COUPE · 06-26-2008, 11:36 PM

Check your couplers, clamps, IC piping, also you should try to comp. test it. Did you spray around all vac. lines. Charcoal can, tb, intake mani. Just some suggestions. GL.

*downshift_sideways* · 06-26-2008, 11:37 PM

Boost leak then.

10-15 vacuum during idle is bad. (should be around 18-22psi)

Your leaking air somewhere.

Maybe a line where your not shooting carb cleaner at.

Try doing a boost leak test.

SDS13COUPE · 06-26-2008, 11:40 PM

^Bingo. Glad you got your car back.

*downshift_sideways* · 06-26-2008, 11:41 PM

sho mang.

Thanks.

hitman · 06-27-2008, 12:22 AM

also, i tried to adjust the idle with the screw and it had no effect whatsoever on the idle

06-26-2008, 11:17 PM	#1
hitman Zilvia FREAK! Join Date: Mar 2006 Location: late 19th century prussia Age: 37 Posts: 1,057 Trader Rating: (3) Feedback Score: 3 reviews	car help!! so it doesnt sound like the wastegate opens till about 5-6k (no tach), ( i have my wastegate hooked up side port on tial-mbc-hotpipe and the top one is open) and the car is way to slow for 3071 at 6psi. the fire ring thing is in but, it builds 6psi way earlier and holds it to high rpm the idle is super up and down, but the up parts are still low and it almost stalls. i sprayed starter fluid everywhere and the idle didnt raise so im not sure if its a vacuum leak. but my vaccuum at idle is 16ish when i first start then a few secs later fluxuates between 10-15 depending on what part of its bumpyness its on. i can kinda hear a fshhhh sound when its boosting, but i am not getting a serious cut out like you do when you boost with a vacuum leak ( i have no cut out whatsoever) also it smells like the car is running real rich its not an individual cylinder because when i unplug injector or spark plug in a cylinder it gets worse. tommys dad redid cam timing no help. my setup is s15 injectors (reddish/brown), rb20 maf, jim wolf ecu. any help would be really appreciated __________________ driftparty.com

06-26-2008, 11:19 PM	#2
downshift_sideways No Limit Soldier. Join Date: Jan 2006 Location: Hayward CA, San Gabriel CA Age: 38 Posts: 5,550 Trader Rating: (0) Rides Gallery: downshift_sideways Feedback Score: 0 reviews	wow...I would like to help you.. but I got lost in your post. can you cliff note it? lol. or be a little more specific. __________________ allntrlundrgrnd: "you never really appreciate your parents fridge until you look into your own and its full of condiments only"

06-26-2008, 11:21 PM	#3
BlckBeautyVTEC Zilvia Addict Join Date: Feb 2005 Location: San Diego Age: 39 Posts: 678 Trader Rating: (3) Feedback Score: 3 reviews	i dont like to see this __________________ poop mama...

06-26-2008, 11:28 PM	#4
hitman Zilvia FREAK! Join Date: Mar 2006 Location: late 19th century prussia Age: 37 Posts: 1,057 Trader Rating: (3) Feedback Score: 3 reviews	idle sucks and it feels like boost isnt hitting but my guage reads 6psi cliff notes but i think you need all the info __________________ driftparty.com

06-26-2008, 11:33 PM	#6
hitman Zilvia FREAK! Join Date: Mar 2006 Location: late 19th century prussia Age: 37 Posts: 1,057 Trader Rating: (3) Feedback Score: 3 reviews	it fluxates, 10-15, but i checked and sprayed starter fluid seriously everywhere, and my car doesnt cut out like when you hit boost with a vaccuum leak __________________ driftparty.com

06-26-2008, 11:36 PM	#7
SDS13COUPE Zilvia FREAK! Join Date: May 2006 Location: San Diego Age: 39 Posts: 1,403 Trader Rating: (19) Feedback Score: 19 reviews	Check your couplers, clamps, IC piping, also you should try to comp. test it. Did you spray around all vac. lines. Charcoal can, tb, intake mani. Just some suggestions. GL.

06-26-2008, 11:37 PM	#8
downshift_sideways No Limit Soldier. Join Date: Jan 2006 Location: Hayward CA, San Gabriel CA Age: 38 Posts: 5,550 Trader Rating: (0) Rides Gallery: downshift_sideways Feedback Score: 0 reviews	Boost leak then. 10-15 vacuum during idle is bad. (should be around 18-22psi) Your leaking air somewhere. Maybe a line where your not shooting carb cleaner at. Try doing a boost leak test. __________________ allntrlundrgrnd: "you never really appreciate your parents fridge until you look into your own and its full of condiments only"

06-26-2008, 11:40 PM	#9
SDS13COUPE Zilvia FREAK! Join Date: May 2006 Location: San Diego Age: 39 Posts: 1,403 Trader Rating: (19) Feedback Score: 19 reviews	^Bingo. Glad you got your car back.

06-26-2008, 11:41 PM	#10
downshift_sideways No Limit Soldier. Join Date: Jan 2006 Location: Hayward CA, San Gabriel CA Age: 38 Posts: 5,550 Trader Rating: (0) Rides Gallery: downshift_sideways Feedback Score: 0 reviews	sho mang. Thanks. __________________ allntrlundrgrnd: "you never really appreciate your parents fridge until you look into your own and its full of condiments only"

06-27-2008, 12:22 AM	#11
hitman Zilvia FREAK! Join Date: Mar 2006 Location: late 19th century prussia Age: 37 Posts: 1,057 Trader Rating: (3) Feedback Score: 3 reviews	also, i tried to adjust the idle with the screw and it had no effect whatsoever on the idle __________________ driftparty.com