Boost, but no power...WTF......

[Obsession]

WTF, ok , so I FINALY got my car back...Now I am happy, motor smooth and everything sounds nice….


BUT!!!!!!

I had a Nissan 35v3 turbo put on the car (got it from Barry..), the one with the ceramic compressor wheel( the one u cannot boost over a bar). Only mods to make it fit was change the flange on the manifold to a t3 flange, and downpipe had to be made…

No my problem is, the car feels dead, actuator on, it boosts 0.5bar, but it is like there is a dead spot at bout 3500rpm, it spools low, but it spools till .5 bar, and still not pulling, then all of a sudden at 4000rpm-5000rpm there is a surge of power…but not allot…..Hel, the car even struggles to go sideways….

Now even with the actuator pipe pulled of I get to 0.8bar, but same thing is happening, massive turbo spool, but no power…Even on the higway, I need to down gear to 5 on uphill, it will sit on full boost, but still no power…..

I checked all boost and vacuum pipes, and everything is secure….

Any help and or advise????

Could the car be going into limp mode from the extra “volume “ of air???

[Draco]

I'd say your actuator is stuffed...depending on that you are sure there is no boost leak....might also be a crack in the echaust housing where the wastegate flap closes on to..

[Draco]

With limp mode your car won't rev over a certain point, no matter what you do.

[Obsession]

Yep, checked all the boost pipes.....Everything secure....

Checked the turbo thoroughly before installing, no cracks anywhere....

[NIZAN-R]

did you close the vacume pipe of the wast gate when you took it off?
sounds like vacume leak

cable tie the basturds in place

[Obsession]

did you close the vacume pipe of the wast gate when you took it off?
sounds like vacume leak

cable tie the basturds in place

Nope, it is completely open....

It is on the Nipples REALY twite!!!!!

[BigKriss]

Have the engine running with the bonnet open.
Rev her up without any load. I want to know if the turbo can be heard spooling and how soon.
If it spools up rather vigorously watch the exhaust piping and collector. Let me know if it gets red hot just by revving the engine and holding it there..

What your`e describing sounds like retarded timing..

[Gary57]

Agreed with Barry...

[Obsession]

Thanx Barry, see u at the shop this afternoon.....

[SonOfAnarchy ZA]

my car had a similar problem, check your timing