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Laggy Gtr

Minko

By Minko,
in Engines & Forced Induction

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Minko Collaborator

Minko

Posted
Posted

Have a GTR with hks 2530's & Tomei cams(unsure of specs) & bleed valve.

Doesnt come on full boost until about 6KRPM which isnt too bad pritty useable but had a look what other pple get with the same turbo's & seems 5KRPM is where they are hitting full boost?

Now i know the bleed valve is going to make it laggier but by how much? surely not 5-1000RPM?

Have checked all my vac lines etc there are lots of extra crap i need to cut-out but there are no leaks, is there anything else i should check?

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djr81 Grand Master

djr81

Posted
Posted

Like you say a bleed valve doesn't help, but it shouldn't make that much difference.

First suspect is the extra crap on the vacuum lines. Plug it/pinch it off and or remove it - then have another check.

Other things are:

Your ignition timing.

Your fuelling.

That the waste gates are closing properly.

Cam timing.

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1400r Veteran

1400r

Posted
Posted

turbos got adjustable actuators on them too?

probably not done up tight enough

I had the same problem with my 2530 on my rb20

wind in the bleed valve and adjust boost via the actuators you should need vice grips and two hands to put

the rod back on to the flap section

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Minko Collaborator

Minko

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Engine is fine, just been built & makes good power.

Cheers for that ill check a few things out, allready buggered around with two ebc's so will be leaving the bleed'r in there for another month or so until i buy a brand newy...its not really that bad just everyone talking about their responsive 2530's & im missing out! :sorcerer: . Good point on the actulators ill suss them out :happy:

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