Late slow spool help !!

[Danz_ep95]

Hi guys basically a friend of mine has a gt running a stock engine on a rebuilt billet ct9 hybrid turbo he is running a custom mild steel internally gated manifold front mount stock ecu fed... And a hks actuator .... Cut along story short it's running .9 and its takes a bit to get going it doesn't seem to pull hard as a ct9 hybrid should ... Any help guys we have done all usual checks such as boost leaks removed the blow off thinking it was this cheers in advance

[aleximport25]

Is it on an electric or a manual boot controller ?

[Danz_ep95]

Just hks not an ebc

[richardc9052]

Does nothing and then comes on hard at about 5k? If so I know of Another GT with the same problem

[starletezy]

What revs does it kick in at?

[Matthewep91v]

This happened to mine but I run an external system and my internal wastgate blew it's welds

Bad times

[Danz_ep95]

Does nothing and then comes on hard at about 5k? If so I know of Another GT with the same problem

It's a case of it coming on boost around 3500rpm which is pretty late for a ct9 hybrid and it's not pulling hard

Does nothing and then comes on hard at about 5k? If so I know of Another GT with the same problem

It's a case of it coming on boost around 3500rpm which is pretty late for a ct9 hybrid and it's not pulling hard

What revs does it kick in at?

3500rpm

This happened to mine but I run an external system and my internal wastgate blew it's welds

Bad times

Yh mate tell me about it

[wickedep]

check the seating area around your waste gate penny mate (i an assuming your using actuator)..it may have cracks on it..if so..it can contribute to lazy boost.

[Stu]

^this, and check that how much static pressure there is holding the wastegate flap closed. If the flap is open a touch then it will take much longer to come on boost.