why does my SR20det run 10psi when should 7psi stock - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

RedTopDrifter01 · 10-05-2009, 01:28 PM

hello i have a 91 s13 silvia and its totally stock except hks intake and hks exhaust, but it runs 10psi instead of 7psi which is stock amount what could be wrong? it dosent have a boost controler just boost gauge and the gauges vaccum source is the right place. Anyone know why it does this? the car also has hesitation when giving it gas quickly istead of graduatly even though it spools up quick when stepping on it still hesitates.

WISH ONE · 10-05-2009, 02:25 PM

check all your vacuum lines for any obstructions, sometimes people put restrictors in the vac lines to increase boost.

*Om1kron* · 10-05-2009, 02:32 PM

who put the turbo on? check your gate on the turbo... make sure there are no (extra) washers where the bulk of it bolts up. It's a ghetto boost adjustment most people do to get 3 more psi out of their turbo.

That's how mine is, I boost 10lbs.

lazysk8er2 · 10-05-2009, 02:42 PM

i thought oem boost is 11psi factory...the wastegate is set for 7psi spring

hailandkill · 10-05-2009, 06:43 PM

Quote:

Originally Posted by Om1kron

who put the turbo on? check your gate on the turbo... make sure there are no (extra) washers where the bulk of it bolts up. It's a ghetto boost adjustment most people do to get 3 more psi out of their turbo.

That's how mine is, I boost 10lbs.

OT but do you have a pic of this?

*ILoveMyRHS13* · 10-05-2009, 11:18 PM

They run 12lbs from the factory, FYI. Most people don't have the BOOST SOLENOID, which causes them to run 7lbs.

*Team DET* · 10-06-2009, 01:05 AM

Quote:

Originally Posted by hailandkill

OT but do you have a pic of this?

i second that

*JVD* · 10-06-2009, 10:10 AM

Quote:

Originally Posted by ILoveMyRHS13

They run 12lbs from the factory, FYI. Most people don't have the BOOST SOLENOID, which causes them to run 7lbs.

This is correct... except I believe stock is 11lbs.

Could be wrong.

lazysk8er2 · 10-06-2009, 11:05 AM

Quote:

Originally Posted by ILoveMyRHS13

They run 12lbs from the factory, FYI. Most people don't have the BOOST SOLENOID, which causes them to run 7lbs.

Well pretty sure its set at 11lbs and he is ALSO from Canada and says it is a silvia which in turn COULD MEAN he has a rhd imported s13. Which COULD MEAN he didnt do any swap so it came with the sr20 which in turn WOULD most likely have the factory BOOST SOLENOID.

BUT he didnt specify so cant really tell ya.

just read this:
Whats stock boost for S13 S14 SR20DET

Check your routing something is fudged.

RedTopDrifter01 · 10-06-2009, 11:58 AM

Yes exacly I'm from Canada and it is a end with factory motor and the solinoid it should run 7like to of my other friends silvias and they are stock to just the same as me

*JVD* · 10-06-2009, 12:15 PM

Quote:

Originally Posted by RedTopDrifter01

Yes exacly I'm from Canada and it is a end with factory motor and the solinoid it should run 7like to of my other friends silvias and they are stock to just the same as me

NO.

If you have the factory solenoid you will run 11psi.

If you run straight off the wastegate you'll only get 7psi.

PS. Try to punctuate. Your shit makes no sense.

10-05-2009, 01:28 PM	#1
RedTopDrifter01 Join Date: Sep 2009 Location: medicine hat AB, Canada Age: 18 Posts: 15 Trader Rating: (0)	why does my SR20det run 10psi when should 7psi stock hello i have a 91 s13 silvia and its totally stock except hks intake and hks exhaust, but it runs 10psi instead of 7psi which is stock amount what could be wrong? it dosent have a boost controler just boost gauge and the gauges vaccum source is the right place. Anyone know why it does this? the car also has hesitation when giving it gas quickly istead of graduatly even though it spools up quick when stepping on it still hesitates.

10-05-2009, 02:32 PM	#3
Om1kron Violent Running Asshole Join Date: Sep 2004 Location: fontana, ca Age: 29 Posts: 3,364 Trader Rating: (9) Rides Gallery: Om1kron	who put the turbo on? check your gate on the turbo... make sure there are no (extra) washers where the bulk of it bolts up. It's a ghetto boost adjustment most people do to get 3 more psi out of their turbo. That's how mine is, I boost 10lbs. __________________ Wayne T. Edwards Violent Running Tribe News Blog <---Peep This

10-05-2009, 02:42 PM	#4
lazysk8er2 Zilvia Junkie Join Date: Jul 2008 Location: new york Age: 24 Posts: 520 Trader Rating: (5)	i thought oem boost is 11psi factory...the wastegate is set for 7psi spring __________________ Yea sure its a stock turbo...

10-05-2009, 11:18 PM	#6
ILoveMyRHS13 I LIEK DRIFT CAR Join Date: Sep 2007 Location: Lancaster, PA Posts: 1,323 Trader Rating: (5)	They run 12lbs from the factory, FYI. Most people don't have the BOOST SOLENOID, which causes them to run 7lbs. __________________

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10-05-2009, 02:25 PM	#2
WISH ONE In time-out for misbehaving. Join Date: Aug 2006 Location: orange county ca Age: 22 Posts: 1,175 Trader Rating: (2)	check all your vacuum lines for any obstructions, sometimes people put restrictors in the vac lines to increase boost.

10-06-2009, 11:58 AM	#10
RedTopDrifter01 Join Date: Sep 2009 Location: medicine hat AB, Canada Age: 18 Posts: 15 Trader Rating: (0)	Yes exacly I'm from Canada and it is a end with factory motor and the solinoid it should run 7like to of my other friends silvias and they are stock to just the same as me

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