Another successful 24x swap.
Thread Starter
TECH Apprentice
Joined: Dec 2008
Posts: 372
Likes: 1
From: Kinston North Carolina
Another successful 24x swap. Finally got around to installing my 24x system. Had I known it was going to be as trouble free as the swap was I would have repined it long ago. I've had the kit for over a year and I let dreading the wiring keep me from getting it done. Car runs awesome now. Its nice to know that a opti spark will no longer make me wanna push my car off a cliff. Now i just have to get it tuned. Has anyone ever just used an existing ls1 tune that has similar build characteristics As a baseline?
Thread Starter
TECH Apprentice
Joined: Dec 2008
Posts: 372
Likes: 1
From: Kinston North Carolina
Motor is a all forged 355 with a cam that advanced inductions cut for me. The heads are stock castings that I ported a set of runners like I wanted and had my boss set them up on the cnc and digitize them and let the cnc do most of the rest for me. I converted them to 8mm valve stems and am running the valve train out of a set of afr competition heads. Heads are 182 CC runner and flowed 280 cfm at .600. I put it on our engine dyno at work just to break it in and make sure it was leak free. I had a out of the box victor junior and a 750 Holley on it and 34 deg of timing it made 495 HP at 6600 and 455 ft lbs at 4800 on 93 octane with 11.3:1 compression. That should be a decent run down of what its made of.
Motor is a all forged 355 with a cam that advanced inductions cut for me. The heads are stock castings that I ported a set of runners like I wanted and had my boss set them up on the cnc and digitize them and let the cnc do most of the rest for me. I converted them to 8mm valve stems and am running the valve train out of a set of afr competition heads. Heads are 182 CC runner and flowed 280 cfm at .600. I put it on our engine dyno at work just to break it in and make sure it was leak free. I had a out of the box victor junior and a 750 Holley on it and 34 deg of timing it made 495 HP at 6600 and 455 ft lbs at 4800 on 93 octane with 11.3:1 compression. That should be a decent run down of what its made of.
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Thread Starter
TECH Apprentice
Joined: Dec 2008
Posts: 372
Likes: 1
From: Kinston North Carolina
Yea they are a bit more loveable without a opti. I'm in the process now of driving it with the wideband trying to get my cruise and tip in up to around 2/3 throttle dailed in. Anything below 35 MPH with half throttle or more just wants to incinerate my tires with this stall and 4.11s.
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11 Second Club
Joined: Jan 2010
Posts: 1,707
Likes: 13
From: New Orleans, LA
Motor is a all forged 355 with a cam that advanced inductions cut for me. The heads are stock castings that I ported a set of runners like I wanted and had my boss set them up on the cnc and digitize them and let the cnc do most of the rest for me. I converted them to 8mm valve stems and am running the valve train out of a set of afr competition heads. Heads are 182 CC runner and flowed 280 cfm at .600. I put it on our engine dyno at work just to break it in and make sure it was leak free. I had a out of the box victor junior and a 750 Holley on it and 34 deg of timing it made 495 HP at 6600 and 455 ft lbs at 4800 on 93 octane with 11.3:1 compression. That should be a decent run down of what its made of.
Thread Starter
TECH Apprentice
Joined: Dec 2008
Posts: 372
Likes: 1
From: Kinston North Carolina
Carb was just a 750 HP holley that belonged on a customers engine that was in for a freshen up at the time i had mine on the dyno. I didnt take the bowls off and change jets, just adjusted idle. It was fairly close on on air fuel numbers so i didnt bother his jetting. I only put 5 pulls on it to get the rings sealed up and check overall fitness of the engine. I wish i had a ported intake. The Vic junior was terrible small in box stock form. I believe with tuning and a ported intake the combo would have easily made 520 hp. However on my LT1 intake i cut the top off of it in the bandsaw where i could really shape the runner entrances like i wanted them and ported the whole intake and welded the top back on. I dont know if its the characteristics of the short runner intake but the motor acts like it wants to be turned well over 7K which is where i have it limited at the moment. It just acts like a freak combo considering how small the heads and cam are. I dont know if AI would like me giving out exact cam specs but its around 22X/23X at .050 with a .613 lift.
Thread Starter
TECH Apprentice
Joined: Dec 2008
Posts: 372
Likes: 1
From: Kinston North Carolina
Thats about what mine cost at first but after i sold off my working delco opti, coil, icm, wires, pcm, and harness i was in the area of 5-600 which you cant go wrong with if you source your parts and build your own harness.
Thread Starter
TECH Apprentice
Joined: Dec 2008
Posts: 372
Likes: 1
From: Kinston North Carolina
Yea I'm going to have a msd opti forsale before to long. Just have to send it back to msd for repairs. I got my coils off of eBay for 150 bucks and the rest came from efi.
24x was worth every penny in my opinion. I had the diy harness at first but had some probs with it so i ended up buying the efi connection harness... problem free ever since.
