Engine's out, now what
#1
Engine's out, now what
I picked up a 97 m-edition with 141k on it for $700 about a month and a half ago running on 3 cylinders. Compression test verified low compression on cylinder 3 and I'm planning on building this car into an exocet next year. I decided that I'd like to get the mechanics right before going into exocet mode and would like some advice on how to proceed. The reason for the low comp was a cracked exhaust valve that did not damage the cylinder walls at all. I had a lock on a PnP'd '99 head but the shop that pulled it determined it was too warped and would need line bored. So my real question is, what should I be doing while the engine is out and the head is off to set myself up for 50-60k worth of spirited driving and hopefully be in the 150ish N/A power pocket? Budget is about $2k.
#3
Basic stuff:
Engine Mounts - get the MazdaSpeed ones.
Cooling, get it properly routed, though I really have no clue have an Exocet might change this, probably less necessary, but a good proper reroute is still a good idea.
Clutch and Flywheel - I'll be getting the Supermiata setup when the time comes.
Clean the engine, probably does not matter much if you clean the chassis in this case.
If you think there's any chance of going turbo in the future, maybe drill and tap the oil pan for an oil drain now, and just run a plug in it if NA.
????
Engine Mounts - get the MazdaSpeed ones.
Cooling, get it properly routed, though I really have no clue have an Exocet might change this, probably less necessary, but a good proper reroute is still a good idea.
Clutch and Flywheel - I'll be getting the Supermiata setup when the time comes.
Clean the engine, probably does not matter much if you clean the chassis in this case.
If you think there's any chance of going turbo in the future, maybe drill and tap the oil pan for an oil drain now, and just run a plug in it if NA.
????
#10
I guess it depends. In theory if you completely took the heat treating out of it while straightening it, then re-heat treated it before it cooled after straightening it wouldnt want to re-warp because any previous stresses would be gone. But thats probably a multi thousand dollar process I just described.
#11
Well, I got a nice deal on some ACL race bearings but am not sure I want to start throwing money at the bottom end for 150hp. Help me understand what kind of money I'd be looking at to have the +.25 bearings installed correctly. And with that kind of work being done I might as well have the cylinders bored out a little and then I should upgrade the rods and then.. and then.... I am struggling with the slippery slope mentality and want to do what makes sense and not throw $1k in for 3hp.
#12
Cpt. Slow
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Well, I'm going off other's dyno results, not my own.
But as far as I know, 150hp is done with a stock bottom end. I can't think of much that actually makes power down there. As long as you have the 10:1 pistons of course. If you can get the 10.5:1 JDM pistons, that's obviously the best course of action.
Ah, just realized you're probably referring to boring out with larger pistons and/or stroker crank. Yes, I believe close to 150hp has been made with a stock bottom end, the above mentioned mods, and some dyno time.
But as far as I know, 150hp is done with a stock bottom end. I can't think of much that actually makes power down there. As long as you have the 10:1 pistons of course. If you can get the 10.5:1 JDM pistons, that's obviously the best course of action.
Ah, just realized you're probably referring to boring out with larger pistons and/or stroker crank. Yes, I believe close to 150hp has been made with a stock bottom end, the above mentioned mods, and some dyno time.
#13
Well, I'm going off other's dyno results, not my own.
But as far as I know, 150hp is done with a stock bottom end. I can't think of much that actually makes power down there. As long as you have the 10:1 pistons of course. If you can get the 10.5:1 JDM pistons, that's obviously the best course of action.
Ah, just realized you're probably referring to boring out with larger pistons and/or stroker crank. Yes, I believe close to 150hp has been made with a stock bottom end, the above mentioned mods, and some dyno time.
But as far as I know, 150hp is done with a stock bottom end. I can't think of much that actually makes power down there. As long as you have the 10:1 pistons of course. If you can get the 10.5:1 JDM pistons, that's obviously the best course of action.
Ah, just realized you're probably referring to boring out with larger pistons and/or stroker crank. Yes, I believe close to 150hp has been made with a stock bottom end, the above mentioned mods, and some dyno time.
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