is my engine blown ??

[rotary_rx4]

hey there,,
 
rite guys my rx7 did somethin really strange the other day.. i put my foot down on second gear up to 7k and the it was running on one rotor i think, next day i did the copression test with the mazda digital tester, and the frond rotor showed, 265 rpm . 07.5, 07.6, 07.8 and rear 85 RPM 0.00 0.00 0.00 ( HOW THATS POSIBLE?) any ideas wat mite be? i hope is not the engine.. thanks,,
 
nacho

[R1Dude]

Any other symptoms mate, losing water etc?

[rotary_rx4]

hey mate thanks for the reply,
 
no smoke no water leak, still starts,but sound really diffrend, i m not 100 % but i think its running on 1 rotor, but i cant be sure cuz i never seen another one how is sound wen is on 1 rotor so i cant realy say.

[rotary_rx4]

no loosin water i ment* sorry

[m1tch]

Does it sound like a tractor on idle? with those compression ratings it looks like you have blown a rotor

[rotary_rx4]

yes mate is sound like a tractor,, but how is possible the frond reads 265 rpm and the rear 85? does the rpm change by compression?

[R1Dude]

Rpm will be the same, if you got no compression on all three it sounds to me like more than 1 tip has gone, side seal etc, i,e blown engine, sorry dude

[R1Dude]

Thinking about it I have never used a compression tester so don`t know the characteristics wether it would allow an engine to spin faster with no compression or not

[rotary_rx4]

No worries mate i will build new one with ports gd thing i can do the rebuild my self
btw i only had it mapped on wed from pip and sunday blown up!

[R1Dude]

What mods u got right now?

[rotary_rx4]

I m still on twins but i vgot frond mount inte, apexi filters. I had the atkins seals in the engine , pfc it was canny stantard,but now i will do much more and i hope it last lang

[R1Dude]

Atkins seals, so its already been rebuild?

[rotary_rx4]

Yes 3000 miles ago and wen pip checked me compression on wed was really good,
  So i was suprised that it blown up and i had it on the low setting i never had the channce to try my fast setting

[m1tch]

Perhaps check if its under warentee, what fuel were you running? did you have a decat?

[rotary_rx4]

Yes i forgot to mention that downpipe and de cat pipe aswell emm bout fuel i dont know to be honest i aint got fuel pump. U think i run lean?