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What 4.2 turbo to do direct replacement with no mods
I have not been able to find an answer to my question - Is my turbo bad? I just bought a 1996 GQ 4.2 turbo. It is super slow, 15-22 seconds 0-60mph. I hold up traffic every time I travel. Top speed is only 63mph. Runs smooth and has a decent pull at low rpm's. Low speeds runs great, and runs great if you go slow and accelerate slowly. very slowly.
I am assuming at this point the turbo is bad. I am a lifelong petrol and marine mechanic, but not a turbo guy and only slightly a diesel guy.
I would like to find an affordable turbo to swap out to see if this is the issue. If I can increase performance a little without additional mods that would be great.
Any advice?
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