FD3S Compression test JDM vs USDM values
I'm looking for used FD3S's in Japan but what i can't find is what the correct compression should be. People on this site talk about 90/125 but on the Japanese tests i see value's like 0.88KG/CM RX-7 ???R ????8.3 ???? ???(??)?????? | ????????????net?
|
US test is obviously on PSI while the JDM is in Metric.
You'll have to convert to whatever you are used to. =The Mazda Rx7 Tester numbers like 8.3..not sure about that though. I bought a TR-01 Rotary Engine Compression Tester engine compression tester which measures in PSI. |
|
I figured it out compression is very good if its between 8.0 and 9.0. But sadly only like 10% of the dealers show the compression test when selling the car.
|
Originally Posted by STJ
(Post 11654364)
I figured it out compression is very good if its between 8.0 and 9.0. But sadly only like 10% of the dealers show the compression test when selling the car.
If you factor that in,9 would be 126PSI...sounds about right. |
Originally Posted by misterstyx69
(Post 11654410)
My understanding is that every 1.0 on the Mazda tester is like 14psi.
If you factor that in,9 would be 126PSI...sounds about right. |
Ya 9 is real good.
I went to a rotary meet about the first year or so after getting my car and a guy had an actual Mazda tester.He did free Comp checks for anyone wanting one. I said "for sure!!!". My engine was hitting 8.4's and people were in awe!..why?.because the car looked like shit..lol! Does the term: looks like shit" translate in Amsterdam?..also means looked liked poop,crap,Garbage,junk,rickety,beaten up,..plain old jalopy!...(Sorry I have to amuse myself somehow!) |
Originally Posted by misterstyx69
(Post 11654645)
Ya 9 is real good.
I went to a rotary meet about the first year or so after getting my car and a guy had an actual Mazda tester.He did free Comp checks for anyone wanting one. I said "for sure!!!". My engine was hitting 8.4's and people were in awe!..why?.because the car looked like shit..lol! Does the term: looks like shit" translate in Amsterdam?..also means looked liked poop,crap,Garbage,junk,rickety,beaten up,..plain old jalopy!...(Sorry I have to amuse myself somehow!) |
Not to get off the beaten track of the topic but it was an FC..and N/A at that.
It would be nice for dealers to have a documented Compression test of the engine but half of them done;t even know what that thing IS or does under the hood.! (looks like a Keg of Beer there,Leroy...where do ya tap it to get the suds?) |
All times are GMT -5. The time now is 05:47 AM. |
© 2024 MH Sub I, LLC dba Internet Brands