Conversions & Swaps LSX Engines in Non-LSX Vehicles
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Old Oct 13, 2011 | 11:53 PM
  #181  
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It looks worse than it really is..that and I dont have the space or resources in a way..
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Old Oct 13, 2011 | 11:59 PM
  #182  
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so how did you do on the original plan and doing this for 2500 total?
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Old Oct 14, 2011 | 12:34 AM
  #183  
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I'm glad you mentioned that..

That pretty much was sarcasm to the post about $1500 LS Engine Swap..just to show how mis-informing that is.

I have a documented list of EVERYTHING that has went into this truck, including the gas that I spent driving to get some of the parts. I'm still gathering some things and I have to order Door Seals..that looks to be the last thing I need. Once I'm done I'll post that list.

Keep in mind too that some things werent skimped on.. POSI, 2" Drop, Drag Suspension.. LS1 with a Cam compared to a junkyard 5.3l..

You'll see it in the list. Feel free to take any guesses from what you've seen so far..
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Old Oct 14, 2011 | 11:18 AM
  #184  
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I like the low-buck approach in a great looking platform and simplicity to everything. Wolf in sheep's garb, with a nasty BAHHHHHHHH!
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Old Oct 15, 2011 | 12:16 PM
  #185  
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I'm looking into extending that Exhaust up over the axle and out the back on each side..a friend gave me a used catback off of a Mustang..it's all chrome and 2.5"..so me and the guys at the muffler shop will figure it out.

It's not too terrible loud, but after driving it for a little bit it's got a drone..
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Old Oct 15, 2011 | 05:49 PM
  #186  
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Well after trying to tune it there is some major problems..Injector Duty Cycle is 130% at 6,000 RPM's WOT..

I'll start with checking the Fuel Pressure to see if the pump is going to **** or not supplying adequate pressure..Injectors are stock LS1 F-body 26lb.
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Old Oct 17, 2011 | 06:23 AM
  #187  
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i still have not spent a dime out of pocket... but i do have 3 grand in my engine alone, plus around 500 in other various parts for the swap and a whole lot more to go... about $5k to do the swap
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Old Oct 17, 2011 | 11:50 AM
  #188  
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It adds up..I'm about to order new Door Seals, and get the Exhaust modified..
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Old Oct 17, 2011 | 07:57 PM
  #189  
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Well updated the Tune for the actual flow rate of the Injectors..24lb/hr. It's now at 140% duty cycle at 6k.

No one around here has a Fuel Pressure Gauge so I'm not investing $60 into one for just this one time use.

I'm leaning toward the Injectors being too small and the Pump not putting out pressure uptop. It's a stock used F-body LS1 Pump.

Anyone have any insight on this?

That and the 2-3 Shift makes the Command AFR go from 12.8 to 11.8..and it stays 11.8 all the way through 3rd. I'm thinking that is just the VE Table probably.
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Old Oct 17, 2011 | 08:44 PM
  #190  
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I was running the stock 26's with a stock fuel pump and a 233/239 making 385rwhp and my injectors were only at 85%
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Old Oct 17, 2011 | 09:45 PM
  #191  
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I'm thinking the Fuel Pump..I dont see the double filter reducing pressure that drastically.
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Old Oct 18, 2011 | 02:49 PM
  #192  
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Well I bought a gauge and checked it..

http://www.youtube.com/watch?v=njT_97-6PTE

A Walbro 255 is on the way..
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Old Oct 18, 2011 | 03:15 PM
  #193  
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that sucks, but man that thing sounds good through the exhaust

On the total spend $ - hard to tell with some of aftermarket stuff, I'm going to with 3800-4300 total.
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Old Oct 18, 2011 | 06:22 PM
  #194  
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Haha **** adds up..
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Old Oct 19, 2011 | 06:48 AM
  #195  
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qfmft^^^^ looks/sounds good merv. i wish i had your wiring skills
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Old Oct 19, 2011 | 11:27 AM
  #196  
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Here I'll make it easy..when you strip them down they are all the same color, so just put them all together..


... It's not really that hard when you get in there..
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Old Oct 20, 2011 | 08:45 PM
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yeah i know it cant be that hard... i just dont know what to change on the harness.
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Old Oct 20, 2011 | 11:29 PM
  #198  
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Originally Posted by 97badass
yeah i know it cant be that hard... i just dont know what to change on the harness.
It's super easy, just time consuming and takes a fair amount of room. Look here and LT1Swap.com for additional wiring information. This isn't 1998 or 1999 when these engines were only a year or two old when parts, tools (programming) and information were non-existent, people are reliably swapping them every day AND willing to talk about how they did it.
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Old Oct 21, 2011 | 12:17 PM
  #199  
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Originally Posted by gofastwclass
..people are reliably swapping them every day AND willing to talk about how they did it.
That is well said..when I did my first LS Swap no one wanted to help with ****, so I had to get some all-data diagrams and bust into it..I made a thread about that with a ton of details..pretty much blowin the whole secret about it wide open..

It is time consuming, the best way to learn is to follow the wires in the harness and you will see what they do. My 84 MCSS and 91 S10 had very little wiring in them, it was easy when it was broken down to the essentials..
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Old Oct 21, 2011 | 02:34 PM
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I think the wiring on the motor once you break it down is the easier part. Figuring out where/how you want to integrate into your new chassis is the harder element.

As Merv said, not hard , just a LOT of TIME consumption

The trick I've learned is one at a time, and study the harness you are working on. Like anything, once you break it down into simpler steps it gets easier.
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