[Z06] Z06 motor disaster averted
01-18-2016, 09:44 PM
#21
Supporting Vendor
Member Since: Sep 2013
Location: Harbor City California
Posts: 2,815
Received 1,012 Likes
on
533 Posts
An injector being stuck open is an unusual thing and not something most people have experienced as vehicle owners. Most of the time the result of a injector stuck open (or being commanded to be open by the pcm or by accidental grounding of circuit) is a bent rod and or broken piston.
Fuel washing down the walls is never a good thing and can ruin the ring sealing ability. We ran a leak down test on the cylinder in questions before taking the heads off and the cylinder passed as a good cylinder.
Someone above commented about all the LS7 injectors being bad and this is absolutely not the case. In fact we are not 100% sure the injector itself is bad. We have the injectors out at our local injector rebuilding shop at the moment and will know if that injector was or was not bad when we pick up the rebuilt injectors. If the injector is not bad then it means there is a circuit fault (grounding of wire, pcm grounding ect...) that commanded the injector to stay open.
http://www.americanheritageperformance.com/
Fuel washing down the walls is never a good thing and can ruin the ring sealing ability. We ran a leak down test on the cylinder in questions before taking the heads off and the cylinder passed as a good cylinder.
Someone above commented about all the LS7 injectors being bad and this is absolutely not the case. In fact we are not 100% sure the injector itself is bad. We have the injectors out at our local injector rebuilding shop at the moment and will know if that injector was or was not bad when we pick up the rebuilt injectors. If the injector is not bad then it means there is a circuit fault (grounding of wire, pcm grounding ect...) that commanded the injector to stay open.
http://www.americanheritageperformance.com/
Last edited by American Heritage; 01-18-2016 at 09:47 PM.
The following users liked this post:
jwebsta32 (02-13-2016)
01-18-2016, 09:44 PM
#22
Melting Slicks
The computer would shut it down as fast as it does when the motor drops a valve, which is way too late. In addition I would say the human hearing the racket steps in and shuts things down before the computer does.
They say there are no ignorant questions, but my experience the last twenty years or so would have me believe hat there are many ignorant answers.
They say there are no ignorant questions, but my experience the last twenty years or so would have me believe hat there are many ignorant answers.
02-10-2016, 06:46 PM
#23
Drifting
Thread Starter
Well, got the Z06 back today from American Heritage Performance. Did the stage 4 package on the motor. This thing now runs like a real beast. Kohle at AHP does a spectacular job on the head and cam package.
Now for some seat time in So. California to enjoy the car!
Now for some seat time in So. California to enjoy the car!
02-10-2016, 06:59 PM
#25
Drifting
They are the best in my opinion, congrats on getting it done!!
02-10-2016, 07:57 PM
#26
What cam did you go with? I'm waiting for my heads from Kohle . I can't wait see the work he does. He's been great to work with so far. I'm going with a BTR stage 2 cam .
02-12-2016, 05:03 AM
#27
Supporting Vendor
Member Since: Sep 2013
Location: Harbor City California
Posts: 2,815
Received 1,012 Likes
on
533 Posts
Enjoy driving your Z the way it was meant to be driven!!!
Thank you again for your business!
http://www.americanheritageperformance.com/
02-12-2016, 07:12 PM
#28
Drifting
Thread Starter
I used the cam he recommended for using stock exhaust and manifolds. It sounds great and has great drivability.
