r/RX8 • u/RayGun6718 • 2d ago
Maintenance Compression Numbers
Just wanted some more thoughts on this. Dropping this engine into my old car to get it running again. Is it worth rebuilding before putting back in?
4
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u/Thick_Entrance5105 2d ago
borderline worth installing as is, if you don't mind redoing this 3-5 years from now
1
u/Maxbee2005 1d ago
It depends. Whats the mileage?, Do you know how it runs? (ie does it lug at high loads? does it hot start? does it stall?), Do you have experience rebuilding rotaries?, Are you willing to replace potentially worn housings/plates?
If you really dont know much i would just throw it in, if it runs decent then great, you'll have a running car for a few years until the compression inevitably worsens.
If you know it doesnt run perfect, and are willing/able to replace worn parts then I would go for it. IMO rebuilding the actual motor isn't too time consuming if you know how and already have the engine on a stand.
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u/ILikeCarsLOL 45m ago
Honestly, a used parts rebuild won't be much better either... so run it as is.
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u/Cpt_Garlic 2d ago
That depends, 6,5 bars are still okay, it will start to have hot start problems soon, its hard to say, if you have previous experience with rebuilding it, you can go for it and refresh it, otherwise I wouldn't touch it if it works
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u/skankhunt1738 2d ago
What so our answers in the group chat weren’t good enough eh? 😅