Quote:
Originally Posted by zr1man@yahoo.ca
I JUST ORDERED THE ACCEL COILS - ACC-140017 $41.00 EACH @jEGS AND ACC-150821 SECONDARY INJECTORS FROM SUMMIT RACING FOR $293 FOR SET OF 8.
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Until 93 MY the injectors were susceptible to alcohol. I would recommend purchasing 8 MORE of those same Accel (150821) injectors and replace them ALL
now - prolly save you some grief again down the road. Once you have those injectors in, you B good. (You do know about the tabs being off-set on (I believe) the secondary injector, right? You'll have to grind or file off that plastic key on 8 of the Accel injectors before the connector will snap in place - took me about 10 minutes with a Dremel to do all 8.)
While you have the plenum off, one other thing you might consider is cleaning up the (solenoid) contact ring and perhaps the contact posts on the starter. They tend to get pitted and one day you'll have the dreaded "LT5 no-startums"...
and another plenum pull. I bought a kit off of Ebay, but
discovered the actuator shaft on the replacement was about 5mm SHORTER
than the one being replaced. So, I used the new contact posts, but reused the actuator.
With an emery board I was able to easily remove the pitting on the surface of the contact ring and thus restore and retain the actuator "good as new". Start to finish it took about an hour - easily done.
Far as the secondary throttles go, if there is one item that pops up on this board consistently - especially among new Z owners - it is fixing the 16-21 year old vacuum circuit. Although parts to restore the system are available, many (most?) of the FBI gang and others too have pulled the secondary throttle plates, actuators, the whole shee-bang and are much happier for it! It requires the chip to be modified to run on all 16 injectors full time, but drivability, IMO, is enhanced. Once the injectors are changed, the secondaries eliminated, and the starter serviced, and the coils replaced...That is about IT for overhauling the stuff that rings up maybe 90% of the problems that pop up (on the board)! The argument for keeping the secondaries seems to center around passing emissions tests; having the secondary throttle plates in place increases the swirling effect in the chamber. Theoretically, this may help emissions testing, but I have not seen anything written here to suggest passing emissions tests is not possible or even inhibited by their (secondary throttle plates) removal. Just a thought.
Quote:
Originally Posted by zr1man@yahoo.ca
YOU GUYS ARE GREAT AND ITS NICE TO ASK TECHNICAL QUESTIONS TO PEOPLE WHO UNDERSTAND THE CAR AND KNOW WHAT THEY ARE TALKING ABOUT...AS OPPOSED TO A LOCAL GM DEALER WHO DOESNT KNOW THE DIFFERENCE FROM A LT1 AND A LT5...I DIDNT FEEL TOO COMFORTABLE LEAVING THEM THE CAR TO TRY AND FIGURE OUT AT $85/HR.
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Amen!
Welcome to the Brotherhood!
P.