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ZL1 Colorado: take 2

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Old Jun 26, 2020 | 05:16 PM
  #151  
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The show goes on... Ended up buying a press-in adapter from LSX Concepts and it was too small for the port. Or the pump port was too big for the fitting. Either way, I ordered a pump from Tuff Stuff that has AN fittings on it to get rid of this problem completely. Won't be here for at least another week. Maybe it'll be boost weather again before I get this thing on the road This is easily the most difficult time I've had getting ahold of bone stock parts.
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Old Nov 25, 2020 | 05:19 PM
  #152  
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It's boost season again....and it's almost on the road. Got some additional work to do with the water pump placement, trying to get air bubbles out and such. But otherwise its technically drivable. Be a little bit before its really making any steam though.

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Old Nov 26, 2020 | 03:21 AM
  #153  
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I can hear the headgaskets crying from here
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Old Nov 26, 2020 | 01:58 PM
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Originally Posted by Atomic
I can hear the headgaskets crying from here
Jarrett was betting the crank would get pushed out the bottom first. We'll see which is the weakest link...
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Old Nov 26, 2020 | 06:35 PM
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Sounds like a a challange to me! Boost her to the moon!
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Old Nov 28, 2020 | 11:10 PM
  #156  
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Originally Posted by smokeshow
Jarrett was betting the crank would get pushed out the bottom first. We'll see which is the weakest link...
25PSI on the last motor and some soiled shorts trying to figure out why the boost controller Wasn't working...

It's not the crank.... Even after bending 2 Gen 4 Rods, the bearings looked perfect.
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Old Nov 29, 2020 | 12:18 PM
  #157  
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Originally Posted by 1FastBrick
25PSI on the last motor and some soiled shorts trying to figure out why the boost controller Wasn't working...

It's not the crank.... Even after bending 2 Gen 4 Rods, the bearings looked perfect.
Elementary school mistake, that one lol. Was that because I hadn't put the 4 port solenoid on yet? You swapped to the new solenoid and lines were backwards?
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Old Nov 29, 2020 | 12:30 PM
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Originally Posted by smokeshow
Elementary school mistake, that one lol. Was that because I hadn't put the 4 port solenoid on yet? You swapped to the new solenoid and lines were backwards?
It's because I tried to follow the directions not knowing the gates work in reverse on those turbos... and the boost goes up to about 7-8psi and skyrockets instantly to about 20psi before you can lift.
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Old Dec 5, 2020 | 09:07 PM
  #159  
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Some day I'll drive it. But for now I'm taking idling without overheating as a big win This is a video from the latest endeavor to control coolant temp without a thermostat because I didn't want the rats nest of plumbing that comes with GM's coolant loop method and not using a stock water pump. Seems to be working in the garage...gotta get it on the road and see how it does.

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Old Dec 6, 2020 | 11:05 PM
  #160  
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Hide your kids, hide your wives...this freakshow ride is on the road. Drove it to a nearby christmas tree lot for its first time out since before COVID was a thing.






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