Just routine maintenance... 3 years ago when I bought it I did the timing belt, pcv, fuel filter, all other maintenance stuff... plugs and wires aren't too old on it, front and rear tranny mounts are new... intercooler hoses are flexible, TB boot is fairly new... I have new injector seals, rear upper shock mounts (I swapped over the shocks from the parts car so I don't really need those anymore), and coolant temp sensor sitting in the back.
Last time I compression tested it (cold) the variation between the highest and lowest was 15psi I think. It was over a year ago and I don't remember the exact numbers.
The power steering line leaks, which is part of the whole power steering issue... the belt for the pump is off and I've just been wrestling it around. It used to have a coolant leak but I'm pretty sure that stopped when I put OEM clamps back on the hoses... I have to top off the oil every once in a while (mobile 1 since I've owned it)... Haven't checked the tranny fluid since I last filled it after throwing in the new 5th gear shift arm... brake and clutch lines don't leak... water leaks in through the hatch and or the sunroof and or the rear tails and fills up the spare tire area. I just left a drain plug open in the bottom and forgot about it.
The zombie chip claims to remap fuel and timing curves and eliminates fuel cut. I dyno'd it before the new head and it did this:
Blue is completely stock, Red is with just the chip, and Green is the chip and a boost controller set to 15psi. Stock numbers were about 143whp/190wtq and at 15psi it is 174whp/243wtq.
The engine feels exactly the same after the new head, so my but dyno claims the same numbers now
The reason the head was replaced was that the original one fired a spark plug out of cylinder #3 and stripped the threads. Rather than helicoil it, I just replaced it with a used one out of a probe gt with about 90k miles on it.
Only engine performance mods are chip, MBC, and a K&N drop in (after the dyno)
Tires still have good tread. They're fuzion zri 205/55.
Suspension has an 18mm probe rear sway bar and poly bushings and end links all around... and I have a 24mm probe front bar sitting in my garage. RSTB out of the mx6 as well.
Haha, sorry if I said some of that before... I don't remember everything I wrote in the first post.
Also, feel free to check out
mazdaturbo's photos and albums on webshots for more pictures and descriptions of a bunch of things I did to it.
And of course, feel free to ask some more questions.