safc setting help?

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slipnslide240sx
Posts: 78
Joined: Sat Dec 09, 2006 3:19 pm
Car: 240sx

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hey i need some help with the safc setting the car is sitting in the garrage now and i just put the kit on. all i need to do now is get a dump pipe welded. and my oil drain line weld to the oil pan. but i need some help with the safc when i get this done. my set up is

t3/t4 turbo 255 walbrostock injectors for now.fmicwastegate set at 8 psie60 maf

i think thats it. the poeples setting on the great info sticky were al running t25 so thats no help can i get some one with a setup like mine? i need the hi and low settings, throttle possitions, and all that good stuff. and

i also need help about my wastegate. i have a external wastegate and i'm suppose to leave the top vacum line unconnected unless i use a boost controller and the bottum connected to what? i looked up online and some poeple connect it to the intank mani. but on my topmount mani thers a nipple for something? should i use this instead?


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480sx
Posts: 4085
Joined: Sun Nov 12, 2006 5:27 pm
Car: 1996 Pearl White 240sx

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Your probably going to blow your motor. 8 PSI is the absolute limit for stock injectors, and thats if the conditions are perfect. On a cold day, or if you have any kind of a boost spike issue at all you will pop it.

Get a lighter wastegate spring, and an 8:1 FMU till you get a set of SR injectors or your going to be spending a LOT more cash on your car for a new motor. Its always cheaper to do things right the first time.

That nipple on your manifold just needs to be plugged, its useless. Was intended for the EGR tube..

Your supposed to hook up the wastegate source right before the throttle plate, on your IC piping. However the easiest/safest way to do it is to hook it up to the turbo outlet.

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Zippy69
Posts: 486
Joined: Sun Aug 19, 2007 2:58 pm
Car: 1993 240sx coupe

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A set of sr injectors will run about $100. Why risk your engine for that?Do it right, or wait till you can. You will spend a lot more that that on a rebuild.

Florida240sx
Posts: 11114
Joined: Thu Jul 01, 2004 7:17 am
Car: 1993 Nissan 240SX Hatch 5spd
2012 Nissan Altima S coupe 2.5
Location: DeLand FL

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at 5.8psi I was lean with stock injectors with my t3/t4. Get some sr injectors real. If you don't boost you'll be fine. but you need some sr injectors or get some bigger. I controlled my 555 with my safc no problems. Perfect idle.

slipnslide240sx
Posts: 78
Joined: Sat Dec 09, 2006 3:19 pm
Car: 240sx

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yeah i already have sr injectors. but when i put the injectors on the car wouldn't start i think it was becuase i flooded the motor with fuel. becuase after i put the stock ones on it still wouldn't start. after a day i tried it and it started i wanted to see if the car would start on the stock one first before i put the sr injectors in. i'm deffinitely not going to drive it i only want to see if it's going to start.then i would put the sr one on and see if the injectors are broken or still working. and i have a weapon r fuel pressure regulator already so i should be fine.

slipnslide240sx
Posts: 78
Joined: Sat Dec 09, 2006 3:19 pm
Car: 240sx

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seriusly could we get back on topic though i need setting any help? thanks

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480sx
Posts: 4085
Joined: Sun Nov 12, 2006 5:27 pm
Car: 1996 Pearl White 240sx

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Use the settings for the t25 with 370's. They will get your car running, just dont boost up.

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Tx-Sx-FS
Posts: 982
Joined: Tue Mar 16, 2004 6:55 am
Car: S13 KA-T
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do low throttle -27% all across High 0% all across if your running 8psi. throttle % low 20 High 50 NE Points should be 1000, 2000, 2500,3000,3500,4000,4500,5000,6000,7000 or to ur liking. decel settings (depends if open bov or recirc)(if not recirc) Throttle: ur volts at 1000rpm when warm, NE1: same NE2: volts at 2000rpm. car: 4 cyl arrow up right corner, 5in5out.

slipnslide240sx
Posts: 78
Joined: Sat Dec 09, 2006 3:19 pm
Car: 240sx

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Tx-Sx-FS wrote:do low throttle -27% all across High 0% all across if your running 8psi. throttle % low 20 High 50 NE Points should be 1000, 2000, 2500,3000,3500,4000,4500,5000,6000,7000 or to ur liking. decel settings (depends if open bov or recirc)(if not recirc) Throttle: ur volts at 1000rpm when warm, NE1: same NE2: volts at 2000rpm. car: 4 cyl arrow up right corner, 5in5out.
thanks man thats what i needed


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