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RCSB LQ4/80E swap... Take two

Old Sep 24, 2016 | 09:45 AM
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Good to hear... Hope the trans works out...
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Old Sep 25, 2016 | 07:59 AM
  #92  
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Me too, there is no way I can afford a transmission rebuild right now. It shifted great in my other truck.

It literally feels like it goes 1st to 3rd. It bucks, and surges after the shift like a manual transmission car when it has a huge cam and needs a lower gear. I tried tow haul, better shift points - but violent shifts even at light throttle. I am going to baby it to the shop tomorrow morning.
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Old Sep 25, 2016 | 09:00 AM
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Just got back from filling it up with gas. It has all gears, locks the converter, etc. It just tries to shift 1-2-D, then lick the converter about 15 feet out of the driveway. If I manually shift it, it's much better.

I am already putting it to work, going to move my dad's C10 so we can get it on the lift and finish it.
Attached Thumbnails RCSB LQ4/80E swap... Take two-img_20160925_095107288_hdr.jpg  
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Old Sep 29, 2016 | 02:37 PM
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The truck is back together after the chassis dyno mishap with the driveshaft. I am going to post pictures of the yoke and universal joint that used in hopes that it helps someone else in the future. The yoke in my truck got destroyed, I happened to have a spare out of a 99' 3500 van with a 4L80E.
Attached Thumbnails RCSB LQ4/80E swap... Take two-img_20160929_140325849.jpg   RCSB LQ4/80E swap... Take two-img_20160929_140315519.jpg  
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Old Oct 4, 2016 | 04:05 PM
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It would seem that the Walbro pump **** the bed. Damn thing left me stranded this morning. I am ready to burn this thing to the ground.
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Old Oct 16, 2016 | 12:47 PM
  #96  
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I have been driving it daily. The tune still isn't 100%, but works for now. I am going to leave it as is while my bank account recovers.

I would like to do a set of cylinder heads next year. For right now, I am eyeing a tru cool 40K as the next "mod."
Attached Thumbnails RCSB LQ4/80E swap... Take two-img_20161012_052011844.jpg   RCSB LQ4/80E swap... Take two-img_20161012_071231807.jpg  
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Old Nov 3, 2016 | 07:13 AM
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Tru Cool 40K ordered... now trying to plan out my next mods. I am considering switching to 1.875" headers from my current 1.75" headers. Thinking a set of ported heads. And possibly a different TQ converter.

I still want to keep the truck drivable, and not hurt the ability to tow a car trailer. I want to keep the mods focused on low end grunt and power under the curve vs. peak numbers.
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Old Nov 14, 2016 | 06:12 AM
  #98  
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Tru Cool showed up Saturday, still waiting on the brackets. Looking at diff covers, and finally going to buy an upgraded drive shaft - it's looking like I am going for a Denny's 3.5" HD driveshaft.
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Old Nov 24, 2016 | 02:55 PM
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The truck is currently tuned for 87 octane... any thoughts on if it's worth having it tuned for 93 or E85? I am on a base tune currently. It runs and drives OK, but really needs a final tune to get it 100%.

Also, I attached a picture of what came out of the catch can after 1K miles.
Attached Thumbnails RCSB LQ4/80E swap... Take two-img_20161124_154005942.jpg  
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Old Nov 25, 2016 | 07:58 AM
  #100  
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Originally Posted by 86 IROC
Tru Cool showed up Saturday, still waiting on the brackets. Looking at diff covers, and finally going to buy an upgraded drive shaft - it's looking like I am going for a Denny's 3.5" HD driveshaft.
I'm running a Denny's 3.5 in my '04 GMC RCSB StepSide - very pleased with it. Even more so when I recently swapped in the 80e and didn't have to alter it.
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