Massive Power Drop

[Woody1]

Hello

1996 SII Nissan Skyline GTS-T Stock Turbo

The problem I was having was my car had a massive power drop felt like I was driving a Mini Moke lol but my turbo was still blowing off spool and reaching 11psi but it felt like it was going nowhere, first and second gear were always good first time the car was started but after that they were all the same and powerless. I was told it maybe spark or the coil packs replaced the spark plugs and test the coils no problem there.

After running the car for awhile when I came to a full stop 2-4 seconds later I would here a click noise but not always.

Anyway I put it on the dyno it ran like crap as you can see below.

Anyway these were the symptoms I was having and it turns out it was the waste gate had worn a grove in the manifold and was catching and staying open then after awhile closing (clicking Noise)

All I did was take it off Die Grind the grove so it was smooth now it runs 100% thought I would share it here on the forum might save someone a lot of money, shame it was too late for me.

Pictures Added

Dyno Result

Edited October 29, 2006 by Woody1

[J_Red33]

Just to alleviate any possible confusion:

That's the turbo dump pipe in the top picture not the exhaust manifold. Exhaust manifold is the exhaust pipe work coming off of the head & in this case is between the head & the turbo.

Good pick up on the fault.

[Woody1]

Thanks heaps took along time to work out what it was, like i mean a long time hahah should have looked there first.