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

Tictakman · 08-02-2003, 07:48 PM

Well this is how it went down...

t3 turbo
35mm tial wastegate w 8lbs spring
safc II with -27 across the map- throttle low is 0 throttle high is 50.
370cc injectors

the start up was fine, no stumbling at all. ran it down the road at about 1/4 throttle turned around drove down my street again(1/4 throttle) once again i turned around and gave it about 3/4 gas and let off completely. she stalled, no stumbling or anything just a flat out stall after i let off the gas. after that it wouldnt fire at all.

my buddy out side of the car said he saw a good amount of blue smoke(too rich?).

the engine turns over fine just doesnt seem to fire.

ive checked the spark on the spark plugs- good
checked the injectors- seem to be fine
turned over engine with just stock piping and had great vacuum.

i think im too rich, anyone else?

any help would be awesome!

Zak

rps13kid · 08-02-2003, 07:59 PM

blue smoke is not rich that is oil black smoke is rich

Tictakman · 08-03-2003, 07:51 AM

well i checked my oil level and it looked like it wsa the same. ill do some more testing today.

Zak

PAnut240 · 08-03-2003, 10:33 AM

Hey, what did your spark pluggs look like when you pulled them out. And was the engine running before you put on the SAFC or is it all new. I'm just trying to get a mental picture of everything.
Jim

Tictakman · 08-03-2003, 01:06 PM

the spark plugs looked ok. they had a little gas on them. i had the safc on for a week without any other mods, ran fine. then i put on the larger injectors and drove that for a day, higher idle...then later that day i installed the turbo.

Zak

turboex · 08-03-2003, 03:45 PM

Mine did the same thing, come to find out I blew of a intercooler pipe, car would not start for hours untill i found the leak damn maf's

RacNgi · 08-03-2003, 10:03 PM

do you have a BOV on your set up? and if you do is it blowing out into the engine bay? Cus if it is thats your problem with the stalling. you need to have bov valve blow the air back into the pipes before the airsensor

mbmbmb23 · 08-04-2003, 02:54 PM

Could the plugs be gapped incorrectly?

-m

Tictakman · 08-04-2003, 02:57 PM

well, i took it to nissan and had my buddy work on it and he did a compression test and has concluded that it is the head gasket. so ill be replacing that this week. does anyone know where i can get a metal one for a ka24de?

Zak

RedSuns · 08-04-2003, 03:31 PM

Quote:

Originally posted by RacNgi
do you have a BOV on your set up? and if you do is it blowing out into the engine bay? Cus if it is thats your problem with the stalling. you need to have bov valve blow the air back into the pipes before the airsensor

you are kinda right...

If you are running a open-atmosphere BOV you have to make sure th BOV is closed at idle or else you will get the stumble. If you vented the air in before the air sensor the car would run horribly rich between shifts. The air has to be vented in after the air sensor.

Muzzy · 08-05-2003, 10:25 AM

y do u have to recirculate the BOV??
would u have ot do this even if u have the BOV closed at idle like u said?

RedSuns · 08-05-2003, 11:01 AM

you don't "HAVE" to recirculate the BOV but by doing this it will prevent the engine from running rich between shifts.

Muzzy · 08-05-2003, 01:52 PM

ah ha ok..but it will run rich for that split second??

RedSuns · 08-05-2003, 03:58 PM

s13silady · 08-05-2003, 04:33 PM

www.backyardproductions.com makes a metal HG for the KA24DE...

even if he had the atmospheric BOV, the SAFC II will regulate that with the right tuning...

after the HG i suggest dishing out 100 bux for the Safc dyno tune..

EDIT: hhmm website doesnt work... try this info:

Backyard Productions
468 Northeast 191st Street, Miami, FL 33179
(305) 249-4979

DuffMan · 08-05-2003, 07:21 PM

Wow, thats got to be the shortest lived KA turbo EVER

Tictakman · 08-05-2003, 09:16 PM

ya tell me about it duff.

i didnt have a recirculating bov it was atmospherical.

i think i know what went wrong. i had the pressure line from the valve cover put into the intake( like the stock set up). i think it created too much pressure for something in there and it messed up the gasket. ideas?

i took off the head today and im gonna have a buddy from nissan come over and tell me what he thinks. the gasket looks ok to me but i dont know what to look for.

i have pics for anyone that would like me to send them to ya. just let me know. input on what might have happened would be great. i also have pics of the piston heads and gasket etc.

Zak

08-02-2003, 07:48 PM	#1
Tictakman Zilvia Junkie Join Date: Oct 2002 Posts: 321 Trader Rating: (0) Feedback Score: 0 reviews	massive turbo help needed! Well this is how it went down... t3 turbo 35mm tial wastegate w 8lbs spring safc II with -27 across the map- throttle low is 0 throttle high is 50. 370cc injectors the start up was fine, no stumbling at all. ran it down the road at about 1/4 throttle turned around drove down my street again(1/4 throttle) once again i turned around and gave it about 3/4 gas and let off completely. she stalled, no stumbling or anything just a flat out stall after i let off the gas. after that it wouldnt fire at all. my buddy out side of the car said he saw a good amount of blue smoke(too rich?). the engine turns over fine just doesnt seem to fire. ive checked the spark on the spark plugs- good checked the injectors- seem to be fine turned over engine with just stock piping and had great vacuum. i think im too rich, anyone else? any help would be awesome! Zak

08-02-2003, 07:59 PM	#2
rps13kid Zilvia Junkie Join Date: Feb 2003 Location: GrEeN BaY WI Age: 41 Posts: 415 Trader Rating: (0) Feedback Score: 0 reviews	blue smoke is not rich that is oil black smoke is rich __________________

08-03-2003, 10:33 AM	#4
PAnut240 Leaky Injector Join Date: Nov 2002 Location: Marysville,CA Age: 43 Posts: 142 Trader Rating: (0) Feedback Score: 0 reviews	Hey, what did your spark pluggs look like when you pulled them out. And was the engine running before you put on the SAFC or is it all new. I'm just trying to get a mental picture of everything. Jim __________________ '89 Fastback  SR20det; Greddy Profec B II boost controller. HKS 262 CAMS. Greddy Radiator,pulleys,oilfilter relocation kit,boost gauge, rockerarm stoppers,intake manifold. Nismo Fuel Press Reg. Ferra duel Valvesprings, ti retainers. East Bear headlight conversion. Type X tail lights. Tien Suspension, Tanabe race exhaust.  GT 16" rims, Walbro high Pressure fuel Pump,  7pt rollcage. HKS BOV. Mandril Exhaust Man. GTR FMIC. BeeR Valve cover. JE Pistons and Eagle Rods.

08-03-2003, 03:45 PM	#6
turboex Zilvia Member Join Date: Oct 2002 Location: minot ND Posts: 252 Trader Rating: (0) Feedback Score: 0 reviews	Mine did the same thing, come to find out I blew of a intercooler pipe, car would not start for hours untill i found the leak damn maf's __________________ 1992 240sx SE s13 silvia frontend conversion SR20DET, custom top mount turbo manifold, Precision SC61 turbo, blitz bov, HKS intercooler, Tial 38mm wastegate, tenzo-r shu-4's, ton of other shit. with clean new paint!

08-05-2003, 10:25 AM	#11
Muzzy Zilvia FREAK! Join Date: Jan 2003 Location: TX Posts: 1,555 Trader Rating: (0) Feedback Score: 0 reviews	y do u have to recirculate the BOV?? would u have ot do this even if u have the BOV closed at idle like u said? __________________ lemme have a dollar

08-03-2003, 07:51 AM	#3
Tictakman Zilvia Junkie Join Date: Oct 2002 Posts: 321 Trader Rating: (0) Feedback Score: 0 reviews	well i checked my oil level and it looked like it wsa the same. ill do some more testing today. Zak

08-03-2003, 01:06 PM	#5
Tictakman Zilvia Junkie Join Date: Oct 2002 Posts: 321 Trader Rating: (0) Feedback Score: 0 reviews	the spark plugs looked ok. they had a little gas on them. i had the safc on for a week without any other mods, ran fine. then i put on the larger injectors and drove that for a day, higher idle...then later that day i installed the turbo. Zak

08-03-2003, 10:03 PM	#7
RacNgi Leaky Injector Join Date: Jul 2001 Posts: 54 Trader Rating: (0) Feedback Score: 0 reviews	do you have a BOV on your set up? and if you do is it blowing out into the engine bay? Cus if it is thats your problem with the stalling. you need to have bov valve blow the air back into the pipes before the airsensor

08-04-2003, 02:54 PM	#8
mbmbmb23 Zilvia Contributor Join Date: Oct 2001 Location: Charlotte, NC. Posts: 1,776 Trader Rating: (1) Rides Gallery: mbmbmb23 Feedback Score: 1 reviews	Could the plugs be gapped incorrectly? -m

08-04-2003, 02:57 PM	#9
Tictakman Zilvia Junkie Join Date: Oct 2002 Posts: 321 Trader Rating: (0) Feedback Score: 0 reviews	well, i took it to nissan and had my buddy work on it and he did a compression test and has concluded that it is the head gasket. so ill be replacing that this week. does anyone know where i can get a metal one for a ka24de? Zak

08-05-2003, 11:01 AM	#12
RedSuns Nissanaholic! Join Date: Jan 2002 Location: Northern VA Age: 43 Posts: 1,865 Trader Rating: (1) Feedback Score: 1 reviews	you don't "HAVE" to recirculate the BOV but by doing this it will prevent the engine from running rich between shifts. __________________ Johnathan 2005 Titan 1996 240SX 1991 240SX 1974 260Z 1996 Honda CBR 600 F3

08-05-2003, 01:52 PM	#13
Muzzy Zilvia FREAK! Join Date: Jan 2003 Location: TX Posts: 1,555 Trader Rating: (0) Feedback Score: 0 reviews	ah ha ok..but it will run rich for that split second?? __________________ lemme have a dollar

08-05-2003, 03:58 PM	#14
RedSuns Nissanaholic! Join Date: Jan 2002 Location: Northern VA Age: 43 Posts: 1,865 Trader Rating: (1) Feedback Score: 1 reviews	yup __________________ Johnathan 2005 Titan 1996 240SX 1991 240SX 1974 260Z 1996 Honda CBR 600 F3

08-05-2003, 04:33 PM	#15
s13silady Nissanaholic! Join Date: May 2002 Location: Bay Area, San Jose Posts: 1,804 Trader Rating: (0) Feedback Score: 0 reviews	www.backyardproductions.com makes a metal HG for the KA24DE... even if he had the atmospheric BOV, the SAFC II will regulate that with the right tuning... after the HG i suggest dishing out 100 bux for the Safc dyno tune.. EDIT: hhmm website doesnt work... try this info: Backyard Productions 468 Northeast 191st Street, Miami, FL 33179 (305) 249-4979 __________________ Last edited by s13silady; 08-05-2003 at 04:39 PM..

08-05-2003, 07:21 PM	#16
DuffMan Post Whore! Join Date: Oct 2001 Location: in a cardboard box Posts: 2,517 Trader Rating: (0) Feedback Score: 0 reviews	Wow, thats got to be the shortest lived KA turbo EVER

08-05-2003, 09:16 PM	#17
Tictakman Zilvia Junkie Join Date: Oct 2002 Posts: 321 Trader Rating: (0) Feedback Score: 0 reviews	ya tell me about it duff. i didnt have a recirculating bov it was atmospherical. i think i know what went wrong. i had the pressure line from the valve cover put into the intake( like the stock set up). i think it created too much pressure for something in there and it messed up the gasket. ideas? i took off the head today and im gonna have a buddy from nissan come over and tell me what he thinks. the gasket looks ok to me but i dont know what to look for. i have pics for anyone that would like me to send them to ya. just let me know. input on what might have happened would be great. i also have pics of the piston heads and gasket etc. Zak