Blowing my TT'ed motor and swapping a new one back in

Girald

I set the fuel pressure per tuner's request... Fuel pressure is a moving target since the fuel pressure regulator adjusts pressure via the vacuum pressure. Maintaining a strong fuel system to accommodate the need is always key.. Im running a Walbro450 with a fuel return and a pump speed controller. and sand alone wiring and relays to allow for adequate power. At the time of the incident, the tank was about 85% full, so a starvation condition is out of the realm of speculation

The system has been monitored, logged and video'ed from the gauge in the engine bay, and a ll is solid... so the fuel pressure is not a factor.

When I pulled the motor out, all of my vacuum lines were intact. In reality, you dont stare at all of your gauges when bulleting down a track. You can have warning lights go off, but you arent going to analyze anything until after you stop the car, since the goal is to get down the track safely. I wasnt logging at the time of the incident, so who knows....

As for boost, i hadnt modified the boost from the tune map.It was a fairly agressive tune and I was at redline when she went boom... I chalk it up to : something had to give, and 1 piston simply had enough.....

This car has been open track'ed, drag raced, top ended, run through mountain and canyon passes, autox etc. This car is no pleasure tub. It works for its space in the garage. Its not a daily driver, though i do drive it to work sometimes.

20/20, i prob could have dialed the boost back since I has that option, but I sent it like any self respecting Z owner would

Moving forward, im going to have the tuner fine tune this map to accomodate any variables in the engine swap, to get me going, but, basically the same tune.. Im going to dial back the car in the interum though until I can put the $$$ to build the motor. After that, cleared for take off with motor to spare...

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AAM tt'ed // Soon: Moving back to the East Coast