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So it begins 94

Old 01-10-19, 01:36 PM
  #151  
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If you are upgrading the diff you can get the RX-8 diff (with 4.44 ring and pinion) dirt cheap used on Ebay, I've see the whole diff go for about $100 or so.

Also, many single turbo guys are looking for the 3.90's so you should be able to sell those on to recoup some costs.

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Old 01-11-19, 08:21 PM
  #152  
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I am hunting so I will definitely check it out Dale. I am sure 1st gear goes really quick with a 4.44
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Old 01-19-19, 03:24 PM
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Well, unfortunately I must update my build thread with a teardown. I have blown an apex seal on the front rotor. It is unfortunate also that I fall into the realm of midpipe disasters as this is what I was playing with when she went. Why? I have no idea yet. AFRs were in the 10s at almost 14psi. I turned the boost controller all the way down so it was running off the spring basically. She would creep up to around 13 close to redline. I was on a back road, It was pretty warm, and towards the end of a 2nd gear pull 7200rpm .89 (12.9psi) I went slightly airborne from a dip in the road and right as the car settled back down she popped. Sounded like electrical discharges, or like a buzzer at the end of a basketball game. Lol, the I lose buzzer I guess.
injector duty was at 76%, I had new plugs, new coils, new fuel pump, etc, etc. We will see how the motor looks inside soon enough.
I will post some positive outlooks for the future soon.
One thing that is 100% sure. Water/meth. Vented Hood probably seibon KS

Not sure on
BNR stage 3 or single
Haltech with some protection or stay PFC
Brand new mazda motor or new housings with port and cooling mods.



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Old 01-19-19, 03:52 PM
  #154  
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Damn that sucks. Who built the engine?
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Old 01-19-19, 03:57 PM
  #155  
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Originally Posted by spintriangles View Post
Damn that sucks. Who built the engine?
It was a Pettit engine. It supposedly only had 3500 miles on it. That was the word of Cam. We will see when I crack it open.
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Old 01-19-19, 05:59 PM
  #156  
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Cam is usually very good. I use Kilo for engine, single turbos and tuning. I use Cam for cooling,suspension and brakes. Everything else I do myself.
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Old 01-23-19, 10:12 AM
  #157  
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Well the map in the ecu seemed ok by a couple different people. I never doubted RP as the afrs all seemed good. The timing was relatively
conservative according to a few. Only semi questionable thing was the pri/sec transition % was set to 65. Questionable by a couple guys opinions. I do not know enough knkedge to comment. Some are saying it should be around 40.

My engine harness isnt bad at all, but I may end up ordering a brand new one from Mazda. I still need to check the harness from the fuel pump. I never did the fuel pump wire mod, but again we are not talking 14psi when this thing blew. It wasnt even 13psi according to the commander display. I may end up replacing that as well and doing the mod. I will probably buy new bosch 2200id injectors.
The alternator will be rebuilt and upgraded to higher amp even though it works without flaw right now.

That's all the update for now. I am really leaning towards BNR stage 3 right now, but I want to know if anyone has lower ait than the stock twins. I may make a thread asking as I have not seen any thread related. I am also thinking to have an engine built with ALS super seals knowing that it may chew up housings a bit early. I will start rebuilding another on the side or by a new mazda created motor to put in storage. Thats about all for now.

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Old 01-23-19, 10:23 AM
  #158  
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Top is the front leading plug, bottom is rear leading.
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Old 01-23-19, 10:38 AM
  #159  
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How much fuel in the tank? These cars tend to have bad lean outs from starvation when fuel levels get just under half a tank. Iíve seen motors let go from it.
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Old 01-23-19, 10:51 AM
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3/4 at least of 96 octane, premix. I just topped it off before midpipe install. Maybe 30 miles after that max.
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Old 01-23-19, 09:26 PM
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I vote for bnr and new OEM harness I bought new harness and charge harness and glad I did. The car only had 75k miles or so and the harness looked ok but it was a good feeling knowing the harness is new.
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