TwinTurbo.NET: Nissan 300ZX forum - DamonZ Rebuild+ Sport 500s+ Kyle/SGP Tune= Awesome
People Seeking Info
 
   


     
Subject DamonZ Rebuild+ Sport 500s+ Kyle/SGP Tune= Awesome
     
Posted by neurozurgeon on October 20, 2004 at 9:16 AM
  This message has been viewed 946 times.
     
     
Message So now that my car is finally running great, I thought I would throw together this post.

Breifly, last November my timing belt slipped 3 teeth due to a faulty tensioner install by the dealer that resulted in a busted ringland in #6 secondary to detonation. This May/June Damon Z pulled the engine for me. The block itself looked great, fortunately, so we only had to hone the cylinders. Here is a "before" picture of the engine:

Here is the engine in Damon's garage:

Here is a pic of #2/4/6:

Here is the busted ringland and small crack in #6:

So the block went to Competition Machine of Plano for re-assembly, honing, and drilling of the water passages to remove the flashing. Damon and I added a few upgrades before dropping the engine back in, including Stillen SMICs, UD pulley, Sport 500s, Inconel manifolds, etc:

The engine bay looks much better now:

After the rebuild, the car drove great for the 1K mile break-in period. Shortly thereafter, it was time to tune.

On the initial tuning session, the car started running extremely rich suddenly due to a massive boost leak at the carbon canister. After removing the CC, another tuning session was disrupted secondary to a large exhaust leak that developed at the downpipes:

My divorced flange DPs are literally "divorced" from their "flanges"!

The third issue was a cam timing problem, which leads me into Kyle at SGP. I dropped the car off in Houston for a week, and this is what I get after I pick it up:

470 rwhp and 540 ft/lbs torque at 24 psi on 104 octane. Not too bad for sport 500s.

Here is the beautiful A/F curve:

And at higher boost:

The car is very responsive now with minimal lag. You basically cannot go wrong with DamonZ and Kyle at SGP! Now I get to finally enjoy the car at MSR.

     
Follow Ups  
     
Post a
Followup

You cannot reply to this message because you are not logged in.