RX7Club.com - Mazda RX7 Forum - 200,000 Mile Reliability

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MakoRacing[FC]

01-11-05 09:21 PM

200,000 Mile Reliability

How healthy is a motor that reads 100 psi on all faces and is in a body with 200,000 miles? Owner says compression numbers suggest a rebuild in its lifetime.

jon88se

01-11-05 09:23 PM

100 psi still has a little left in it. Below 90 and it's on the verge of blowing I believe...

eriksseven

01-11-05 10:19 PM

100 psi on a s4 should be golden. s5... decent-ish.

NSBerkland

01-11-05 10:40 PM

what would be golden for a S5?

luiml73

01-11-05 10:56 PM

120

Icemark

01-11-05 11:32 PM

Figure any rotor face hitting 90 PSI (or lower) and you need to start thinking rebuild.

120-125 is normal and what you want for a very good condition motor.

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