Ls3 C5Z swap
Thread Starter
Instructor
Joined: Oct 2011
Posts: 218
Likes: 3
It's alive! I will try and post an idle video tonight...
I found a LS7 injector file on the HP Tuners forum, and everything els was pretty straight forward...
There was an issue with the cam sensor wires that needed to be flipped and the MAP sensor had a bad connection...
I did some idle tuning last night and got her to idle at a solid 850rpm with crisp of idle throttle response!
I found a LS7 injector file on the HP Tuners forum, and everything els was pretty straight forward...
There was an issue with the cam sensor wires that needed to be flipped and the MAP sensor had a bad connection...
I did some idle tuning last night and got her to idle at a solid 850rpm with crisp of idle throttle response!
Thread Starter
Instructor
Joined: Oct 2011
Posts: 218
Likes: 3
470 wheel
The -4cc valve relieve in the pistons was probably to blame for the low dyno numbers originally. I pulled the heads and shaved .030 , ported the intake and throttle body and retuned it.
She feels a little stronger now, hope to get back on the dyno again before next season.
Drifting
Joined: Sep 2007
Posts: 1,649
Likes: 50
From: Goldsboro NC
470 wheel
The -4cc valve relieve in the pistons was probably to blame for the low dyno numbers originally. I pulled the heads and shaved .030 , ported the intake and throttle body and retuned it.
She feels a little stronger now, hope to get back on the dyno again before next season.
The -4cc valve relieve in the pistons was probably to blame for the low dyno numbers originally. I pulled the heads and shaved .030 , ported the intake and throttle body and retuned it.
She feels a little stronger now, hope to get back on the dyno again before next season.
Pro
Joined: Jan 2012
Posts: 638
Likes: 10
From: Santa Barbara California
Thread Starter
Instructor
Joined: Oct 2011
Posts: 218
Likes: 3
Pro
Joined: Jan 2012
Posts: 638
Likes: 10
From: Santa Barbara California
Any other words of advice for someone who has done it successfully?
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Advanced
Joined: Dec 2004
Posts: 96
Likes: 4
From: Casselberry FL
I tried sending a PM but your Inbox is full. Did the drain lines solve the pooling issue? Can you give details on the specific parts used to connect the heads to the oil pan? Who did the machine work on the heads/pan to connect the lines?
Racer
Joined: Mar 2015
Posts: 336
Likes: 40
From: Longview WA
Is this LS3 stock displacement? I must have missed where you stated if it was bored/stroked or not o.o
Do you know if putting the LS1 knock sensors in the valley will still work? I see you went with the side mount. I am wondering which my shop is going to go with.
I have my LS3 being put into my car right now, very excited/
Do you know if putting the LS1 knock sensors in the valley will still work? I see you went with the side mount. I am wondering which my shop is going to go with.
I have my LS3 being put into my car right now, very excited/
