Turbo Boost and model

[scottbmxer]

Only getting max boost around 16/17 psi with the wastegate arm on last 2 turns and running max fuel! Also any ideas on which turbo I have??

306 dturbo s xud 1998 S-reg

Scott

[4WayDiablo]

Could be a worn wastegate being pushed open or a boost leak
Don't know what turbo it is though. Being a later model I'd think ko3 or similar

[Jenkosowls]

turbo seems rather leaky

[scottbmxer]

Ive noticed in first or second before the the boost has just dumped at around like 3500 4000 revs causing the car to slow down massively like I put the brakes on!

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going down motorway and stuff it will stay at a constant boost no problem

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Btw when I mean max fuel i mean 45degree's or slightly more on lucas pump!

[strictly_perv]

The manifold looks different to my old T2 and k14 so i'm guessing it's a GT15

[ash23]

That's a k03 should got more out of it than that mines boosting 1.4bar .

[4WayDiablo]

What you mean before "the boost has just dumped"

[scottbmxer]

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What you mean before "the boost has just dumped"

sometimes the boost just dumps around those revs in first and maybe second! I just loose all pressure and it slows the car down massively like I have put on the brakes.

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That's a k03 should got more out of it than that mines boosting 1.4bar .

how much did you tune your lucas to get that 1.4 bar?? and is your waste-gate arm really short like mine? like on the last few threads

[David]

have you checked all your piping?

[scottbmxer]

have you checked all your piping?

seems fine to me but im not great with cars lol

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this is a video of it running a few months back at stock - http://www.youtube.com/watch?v=vDkf-WcYe...ature=plcp

[4WayDiablo]

Make sure there are no leaks. And fit a MBC to adjust boost easier

[ginge191]

That's a k03 should got more out of it than that mines boosting 1.4bar .

28psi here (1.9 bar) on a K03 here!

But sounds like a busted turbo; I shouldn't cut off, at higher rpm, the turbo will start to loose boost..

[David]

if it is a busted turbo then drive it normally but i say its bigger turbo time

[scottbmxer]

Was going to upgrade to a T2 what do you think??

[samass]

go big, or go home. td04 or the like

not that i know anything about dervs, but from what i know, the t2 is the 'best' standard turbo they put on. might as well get a big un on it for more gains and whatnot

[4WayDiablo]

Pretty much what amass says.:-)