Conversions & Swaps LSX Engines in Non-LSX Vehicles
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4.8 LSx turbo swap into 1991 300zx Z32

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Old 01-28-2013, 09:57 AM
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Yes Sir! Gotta make these things fast and reliable somehow!

Yea I wanted to have the engine as far back and low as I could reasonably get it. I think it turned out decent.
Old 01-28-2013, 09:59 AM
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You lost all heat/AC and air didnt you tho? I still have all that on mine with enough room for a single turbo still.
Old 01-28-2013, 10:46 AM
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Yea, this isn't my DD, it's more of a project / race car. I literally rewired this this thing from head to toe, ditched the ABS and anything else that was taking up space and adding weight. I could have retained everything but wasn't concerned about it.
Old 01-28-2013, 03:29 PM
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Make a build thread over on www.300zxclub.com and introduce yourself/car if you havent already! I have a build thread over there myself! Us LSx Z32s gotta stick together haha There cant be many more than 5-10 of us as far as I can tell from the research ive done!
Old 01-28-2013, 07:32 PM
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Originally Posted by vettewreck
Make a build thread over on www.300zxclub.com and introduce yourself/car if you havent already! I have a build thread over there myself! Us LSx Z32s gotta stick together haha There cant be many more than 5-10 of us as far as I can tell from the research ive done!
That number seems to be rapidly growing.
Old 01-29-2013, 06:22 AM
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Originally Posted by INSANEREINDEER
That number seems to be rapidly growing.
Ha yeah I'm sure. People are realizing with a little work they can make it happen pretty easily. I had my first v8 swap in this car back in 2003 and I only knew of 3 others then. People weren't making build threads as much as they are today so I'd imagine there are a lot more of them then we realize.
Old 01-29-2013, 06:22 AM
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Originally Posted by vettewreck
Make a build thread over on www.300zxclub.com and introduce yourself/car if you havent already! I have a build thread over there myself! Us LSx Z32s gotta stick together haha There cant be many more than 5-10 of us as far as I can tell from the research ive done!
Will do.
Old 01-29-2013, 10:58 AM
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Well IMO theres a difference in throwing in a V8 (which can be done in a wknd if its a LT1 or Carb'd) than a LSx/T56. The extreme version being the LSx/T56. Its relatively easy with a TH350/400 or even a 4-speed auto. But regardless theres probably less than 10 LSx swapped 300s out there and only 3 that ive seen with the T56 6-speed. Either way its awesome!
Old 01-29-2013, 09:16 PM
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There is also a difference in a clean install and something just slapped together. Worse thing I have found doing this is rewiring a truck harness to allow the ecu to sit under the passengers feet still. I am trying to keep my car completely stock looking all the way around until the hood is opened. No crazy aftermarket gauges, keep A/C and heat, and have everything work as normal.
Old 01-30-2013, 08:49 AM
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Oh I agree as well! Not to toot my horn but from all the ones ive seen, Id consider mine to be one of if not the most cleanest one done. IMO, mine looks like the LS1 was supposed to be there. But thats just me.
Old 01-30-2013, 07:46 PM
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Yours is BY FAR the cleanest I've seen. I'm going for a weekend car build, so no A/C, I do plan on adding power steering. Actually I have question, what did you do about the variable assist motor on the rack? Do you use the factory P/S computer? ... currently running 225's up front and would like to get the P/S done before I do
Old 02-08-2013, 05:06 PM
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Ok a little more progress. Down pipe made and contour fans fitted to radiator.dum


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Fans are a little big but after I seal them off they should work great.

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Old 02-08-2013, 10:17 PM
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Looking good.
Old 02-11-2013, 06:45 AM
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Here are a few more shots with the radiator and fans in.

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Old 02-11-2013, 07:38 AM
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The radiator and fans look like a perfect fit from the pics.

I cant even imagine what this swap would be like if you had a ls1 and t56. It would be so "extreme".
Old 02-11-2013, 09:24 AM
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How far are your motor mounts offset from the stock mounting location of the ls1?
Old 02-11-2013, 09:49 AM
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Originally Posted by snyousef
How far are your motor mounts offset from the stock mounting location of the ls1?
From the center line of the stock to the center line of the trans-dapt mounts is roughly 1.5 - 2". I'll double check tonight.
Old 02-11-2013, 07:44 PM
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That would be great thanks.
Old 02-12-2013, 05:30 PM
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Originally Posted by snyousef
That would be great thanks.
Drivers side is roughly 2" back centerline to centerline and the passenger side is about 2.5" back centerline to centerline.
Old 02-13-2013, 04:57 PM
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She is coming along well man! Love these build threads, they are very addictive to read.


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