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Just Fitted Fmic

ATTN

By ATTN,
in Forced Induction Performance

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ATTN Proficient

ATTN

Posted
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I just fitted a Hybrid FMIC to my Series II Skyline, Now my problem is my car is now running ridiculous amount on boost roughly 15-20psi when I look at my boost gauge, which I know its un-safe for my stock turbo, when I hit 3,500 revs my car spools to boost then my car starts to jerk so I keep my revs down low, I've only got a FMIC, turbo back exhaust, and af, no boost controller. I'm wondering if anyone esle has this similar problem that could shed some light and tell me whats wrong with my car.

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paulr33 Grand Master

paulr33

Posted
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sounds like youve left off the cooler to actuator pressure line off, so the actuator never opens so the wastegate never opens, aka boost keeps climbing for ever. this can be fatal so be careful. check your lines and the air tubes running to the turbo area

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jetskyliner33 Enthusiast

jetskyliner33

Posted
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Hey, Ive also just fitted a hybrid cooler to my R33 with standard turbo, turbo back exhaust, bleeder valve, and mine does the same thing, except i run low boost (9psi), and it still jerks at high revs???? Could this mean I need to get a bigger fuel pump, or Do I need a fuel cut defender fitted. Ive checked for any boost leaks and still cant figure it out. Would a electronic boost controller fix this problem or power fc????

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Munna Rising Star

Munna

Posted
Posted
Hey, Ive also just fitted a hybrid cooler to my R33 with standard turbo, turbo back exhaust, bleeder valve, and mine does the same thing, except i run low boost (9psi), and it still jerks at high revs???? Could this mean I need to get a bigger fuel pump, or Do I need a fuel cut defender fitted. Ive checked for any boost leaks and still cant figure it out. Would a electronic boost controller fix this problem or power fc????

Could be richening up to much in which case you would need a SAFC or Power FC you. Either that or you may have faulty coils.

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LANFOH Experienced

LANFOH

Posted
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G'day,

I think I know what your prob is mate, When you removed the standard piping you cut into the vacuum line running of your standard intercooler pipe but prob did not plug this back into another vac line somewhere so you will have full boost, this is very very bad, dont drive it. T into your inlet manifold somewhere ie BOV so the wastegate can read some boost. This will fix your problem.

Cheers

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LANFOH Experienced

LANFOH

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Im no expert on this sorta stuff? what do i have to do? sorry if im sounding stupid but Im worried about my car.

Did you put the cooler pipes in yourself? There is usually a vacuum hose nipple on the standard cooler pipe which leeds to the wastegate which hangs of the turbo. Because you have changed this pipe you will have to find somewhere where the wastegate can read boost from, Cut your BOV vacuum hose and tee of that into the satandard t piece off the wastegate and hook it up. If this is already hooked up then your problem lies elsewhere.

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pree Rookie

pree

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I had the same problem with my skyline i fitted a front mount intercooler and the car wont rev past 3500 i changed the spark plugs and gapped them to 0.8 once i put them in started the car i could tell that the idle was better when i drove it it went hard, very hard so it solved my problem try that first, Always try the easy stuff first i learnt that the hard way

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al_r33 Rising Star

al_r33

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hey guys! im in the middle of installing my Hybrid if anyone could post pics of where they have connected there line to there BOV then that would be good also if you have any pics showing what the piping and intercooler looks like as an end result.

cheers

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LANFOH Experienced

LANFOH

Posted
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hey guys! im in the middle of installing my Hybrid if anyone could post pics of where they have connected there line to there BOV then that would be good also if you have any pics showing what the piping and intercooler looks like as an end result.

cheers

I went the all cheap kit cost me around $600 and works like magic can feel the power straight away but the car is running rich and is dumping fuel so ill need to tune the air fuel ratios. Just cut the BOV vacuum hose and tee into that it easy. I think you actually get a better reading from the original spot so n the future im gonna weld in a nipple to my piping.

Heres some pics.

post-14246-1125534944.jpg

post-14246-1125534973.jpg

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