How much power am i out?

The Nissan 300ZX (Z32) general community discussion forum
Ill give u a head start
Posts: 256
Joined: Wed Oct 18, 2006 2:49 pm
Car: 1993 Nissan 300zx Twin Turbo

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well it seems like its gonna be about another month before i get the rest of the money for my new motor. SO just out of curiosity how much HP u think my TT is runnin right now?Ive noticed a big decrease in power since the rod knock occured in cylinder 6. Ive been driving it around as i was before taking it to school and what not. Any of u think thats a bad idea? also when the time comes to do the swap is there anything i should have my mechanic check on? My dad said to be sure to check the clutch. anything else


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evildky
Posts: 14225
Joined: Sat Jan 31, 2004 9:23 pm
Car: 71 Datsun 240ZT
87 Nissan 300ZX N/A-T
06 Nissan 350Z GT
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if you have an actual rod knock it's only a matter of time till it makes an exit through the side of the block and if you reve the engine or put it under much load it'll be even sooner! as for itesm to handle at the time if the swap, plan on a clutchjob, and plan on doing the imingbelt and associated hardware, wateroump and thermostat and those little hoses while you got it out and can get to it

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gpelite
Posts: 365
Joined: Tue Aug 09, 2005 2:22 pm
Car: 1990 300zx TT

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The most important thing with a swap is making sure the breaking in of the new engine is smooth and that everything is sealed and well lubricated. Some engines sit around more than others. If you do not have a history of service on the engine, which most don't come with, make sure you due things similar to the mileage on the engine example:60k tune up. Your father has a point in checking the transmission and clutch while you are tearing the car apart basically. Now may be the time to upgrade several other components like turbos, boost controller system, Innercoolers like SMIC to FMIC, plan out what you can afford.

Don't drive the car around now, I mean a knock is not going to get better but it can get worse as evildky said. You will only be adding miles and pushing a dead engine. If you want to resell old parts like injectors, turbos (assuming your new engine comes with them), etc you might want to stop driving it. If the rod tears out parts of the block where is it gonna exit? chunks may fly through your exhaust manifold and K.O. a turbo or mess it up at least and ppl pay decent cash for used TT turbos in nice shape. If you need the turbos or other parts again... then yea just stop driving it


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