Compression Test Results & Turbo Query - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Titan · 02-02-2003, 04:36 PM

Today I finally got around to performing a compression test on my 89. She has 167,000 km (~105,000 miles) and runs quite well. Question is, is she good for low boost?

Cylinder 1 - 160 psi
Cylinder 2 - 155 psi
Cylinder 3 - 152 psi
Cylinder 4 - 155 psi

I checked the FSM, and the standard is 192 psi, while the minimum is 142 psi. So it seems my motor isn't in as good shape as I thought

I doubt she would be able to run 4-6 psi of boost reliably for very long, what does everyone else think?

Lastly, when I reinstalled the plugs, wires, coil wire, and fuel fuse, and started her; she ran right away, but was clicking. I couldn't find where the hell the clicking was comming from, and it seems it's most noticable at low rpms (idle). Any ideas?

Thanks for any suggestions.

02-02-2003, 04:36 PM	#1
Titan Zilvia Junkie Join Date: Apr 2002 Location: Ontario, Canada Posts: 421 Trader Rating: (0) Feedback Score: 0 reviews	Compression Test Results & Turbo Query Today I finally got around to performing a compression test on my 89. She has 167,000 km (~105,000 miles) and runs quite well. Question is, is she good for low boost? Cylinder 1 - 160 psi Cylinder 2 - 155 psi Cylinder 3 - 152 psi Cylinder 4 - 155 psi I checked the FSM, and the standard is 192 psi, while the minimum is 142 psi. So it seems my motor isn't in as good shape as I thought I doubt she would be able to run 4-6 psi of boost reliably for very long, what does everyone else think? Lastly, when I reinstalled the plugs, wires, coil wire, and fuel fuse, and started her; she ran right away, but was clicking. I couldn't find where the hell the clicking was comming from, and it seems it's most noticable at low rpms (idle). Any ideas? Thanks for any suggestions. __________________ Sleep Doesn't Drink Beer