whats wrong?

[mix78]

where did my power go? slowly my acceleration has depleted, no tourqe any more, no boost curve, just seems really flat, a vl crapadore beat me for god sake!! . i run 15psi boost, 450mm fmic, exhaust ect, is it just tired? is the the advance timing thingy suposed to see positive boost? whats wrong? :(

[enthuzed]

Welcome to the forum, mix78. You've probably killed your turbo at a guess.

[mix78]

thanx for your input mate, i was thinking the same, though it seems to spool up ok, a little smoke at ildle, but thats it, fuel pump maybe?

[Alspos]

Howdy.
What have you checked/adjusted etc. Timing? Blocked or crushed exhaust, blocked cooler pipes? Wastegate actuator jammed open?

[mix78]

gday yhere, man, ive checkd everything, timing,@10 btdc, balance shaft timing is spot on, the only thing im yet to do is check the fuel pressure, this is driving me nuts,

[Alspos]

Vacuum advance unit inside the dizzy working?

[OLD FART]

Blocked fuel filter???
Had a similar problem many moons ago and after many $$$$$ it was a fuel filter that was ok on lo boost but as soon as 7+ went into it all sorts of farting and spluttering arrived

[mix78]

buying a new fuel filter tday, should the vac advance see positive boost , or jusy vac???? howd that bonnet go old fart? :)

[Entaran]

Might sound stupid but have you got a collapsed Cat or collapsed muffler?

That would easily cause all those problems.

[Adriano]

Is it actually making boost?

[mix78]

the boost gauge says 14psi, as does the factory gauge, but it feels more like 7psi,really flat in power, and the exaust is fine,

[mix78]

found it i hope, big crack in manifold, and 2 broken studs, odd, it didnt sound like it was leaking, heres hoping