2nd Generation Specific 1986-1992 Discussion

safe boost?

Old 12-22-2006, 11:45 AM
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i got this cheapo boost controller from ebay and its supposed to adjust in small incriments. but one click and its either 5psi or 14psi. soooooo......can the stock motor handle this, or should i look into getting a SAFC2? i got a walbro 255LPH fuel pump and a fuel pressure regulator. i turned the fuel up to 38-39 psi for now. any sugestions?
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Old 12-22-2006, 01:30 PM
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leave it alone, its gonna pop.... anything over 8-9psi you're gonna be engine shopping
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Old 12-22-2006, 01:45 PM
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Originally Posted by j9fd3s' post='849931' date='Dec 22 2006, 11:30 AM

leave it alone, its gonna pop.... anything over 8-9psi you're gonna be engine shopping




Ditto-



You need more than just an SAFC. The turbo becomes a hot heater blower at high psi and with the stock IC just doesn't cut it for anything above stock and stock levels.



Leave it alone or do the proper upgrades.
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Old 12-25-2006, 06:41 PM
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i wouldnt really run more then 8 psi on the stock fuel system...





a SAFC wont help, the problem with the stock ecu is it maxes the stock injectors out anyway( ecu limits duty cycle to like 65% or some bs)so u need more fuel.



if you get some say 750cc secondary injectors then u have enough fuel to run more boost ( be careful tuning it though)



OR



if your lucky and have a S4 t2, you can get a rtek 1.7 and 720cc injectors and it is tuned to run higher boost levels gets rid of fuel cut, keeps timing retard, and some other good features.
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Old 12-25-2006, 08:39 PM
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FCD, exhaust, intake, and 10-12psi.
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Old 12-26-2006, 12:05 AM
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Originally Posted by Dramon_Killer' post='850260' date='Dec 25 2006, 07:39 PM

FCD, exhaust, intake, and 10-12psi.




what do you mean? if i have intake, exhaust, and a fuel cut defender then im safe at 10-12 psi?
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Old 12-26-2006, 12:27 AM
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Originally Posted by KompressorLOgic' post='850245' date='Dec 25 2006, 05:41 PM

if your lucky and have a S4 t2, you can get a rtek 1.7 and 720cc injectors and it is tuned to run higher boost levels gets rid of fuel cut, keeps timing retard, and some other good features.


there use to be an rtek link on here. i cant find it. you know the web site???
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Old 12-26-2006, 12:37 AM
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never mind. i finally found there site. but they dont make a TII S5 one
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Old 12-26-2006, 02:33 AM
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Originally Posted by sen2two' post='850295' date='Dec 26 2006, 12:05 AM

what do you mean? if i have intake, exhaust, and a fuel cut defender then im safe at 10-12 psi?


Yeah but you wont really make much power past 10.
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Old 12-26-2006, 10:16 AM
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i dont know. i have intake, downpipe, exhaust, FCD, Fuel Pressure Reg. and a fuel pump.the car feels kinda weak before 10psi and it feels REALLY good around 14psi. my boost contorller sucks though. i have a new one on the way so i can adjust it to 10psi. thats what i wanted anyway.
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