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2.4L LE5 Performance Tech 16 valve 171 hp EcoTec with 163 lb-ft of torque

[Build Thread- Twincharged LE5] Brand new engine has milky gunk inside

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Old 07-09-2017, 12:51 PM
  #126  
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Originally Posted by Snail_SS
Vids of car running or it didn't happen
I second this!
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Old 07-09-2017, 01:31 PM
  #127  
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Haha i will soon
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Old 07-09-2017, 06:50 PM
  #128  
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Come one man you're slacking it
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Old 07-09-2017, 07:11 PM
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Away from my car during the week now
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Old 07-24-2017, 12:46 PM
  #130  
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Well, so far, so good. Engine has over 1000 miles now and made a trip to chicago and back for CED. Got third place in AutoX out of our group and ran 13.9 at 113 at Great Lakes dragway.
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Old 07-25-2017, 11:57 AM
  #131  
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Originally Posted by Slowbalt2000
Well, so far, so good. Engine has over 1000 miles now and made a trip to chicago and back for CED. Got third place in AutoX out of our group and ran 13.9 at 113 at Great Lakes dragway.

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Old 07-27-2017, 02:26 PM
  #132  
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Originally Posted by Slowbalt2000
The sc isnt restrictive, its basically an airflow multiplier. It creates more exhaust gasses down low to help spool the turbo and after that its just along for the ride basically. At no point is it a restriction though.
Confirmed by an engineer running a twincharged engine in the dyno. If I understood correctly: He said with the TC after the SC, the SC will become a restriction. With the TC before the SC, the SC will just increase the mass air flow rate. Also suggested the turbo turbine be large enough otherwise that will become the restriction. He wasn't the twincharge expert but knows a few things. He is studying efficiency with this setup, not peak power stuff.
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Old 07-27-2017, 02:46 PM
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Originally Posted by Slowbalt2000
Well, so far, so good. Engine has over 1000 miles now and made a trip to chicago and back for CED. Got third place in AutoX out of our group and ran 13.9 at 113 at Great Lakes dragway.
​​​​​​​on drag radials? I always wanted to do a twincharge setup but im scared of tuning it. I feel its not easy to do, i could be wrong though. Sounds like the car is running great and reliable. Great build!
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Old 07-27-2017, 03:33 PM
  #134  
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No that was on my z2 star specs and a ***** launch, didnt want to break anything. Tuning it really isnt hard if youve tuned a cobalt before. If the maf housing is staying the same then really you dont need to change much in the tune.
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Old 07-27-2017, 05:27 PM
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Thats understandable. I wouldnt want to break anything launching hard either. I have only tuned a friends LNF, my 2.4 g5, and my supercharged 2.2. But i have done many cam setups on LS engines. Thats where i started learning on. I had just heard before about the difficulty of tuning twincharged cobalts and really never found much info on them.
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Old 07-27-2017, 05:30 PM
  #136  
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Im maf only right now with the maf before the turbo, zero issues tuning it. Its just like tuning any other forced induction setup.
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Old 07-27-2017, 05:32 PM
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When do we get to see some videos of this beast?
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Old 07-27-2017, 05:34 PM
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On motor number 7
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Old 07-27-2017, 05:44 PM
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Originally Posted by Slowbalt2000
Im maf only right now with the maf before the turbo, zero issues tuning it. Its just like tuning any other forced induction setup.
​​​​​​​i was about to ask where you had placed your MAF. Do you have a recirculating BOV? Or another reason why putting the MAF before the turbo? I would think it go after turbo to avoid a rich condition after BOV releases pressure.
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Old 07-27-2017, 07:14 PM
  #140  
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Look at my sig pic, its a recirc bov Tial Qr
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Old 07-27-2017, 07:14 PM
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Originally Posted by jdbaugh1
When do we get to see some videos of this beast?
Torque steer is too much to record and drive lol
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Old 07-27-2017, 07:18 PM
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Originally Posted by Slowbalt2000
Look at my sig pic, its a recirc bov Tial Qr
Your sig just says Base Model Specialist
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Old 07-27-2017, 07:20 PM
  #143  
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Originally Posted by ECaulk
Your sig just says Base Model Specialist
Wut. I can see the pic lol
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Old 07-27-2017, 07:20 PM
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I see his picture. its a black Tial Q recirculate
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Old 07-27-2017, 07:33 PM
  #145  
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Originally Posted by Slowbalt2000
Wut. I can see the pic lol
Not everyone can ID a bov from your little picture
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Old 07-27-2017, 07:40 PM
  #146  
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Wow almost 20 days and still no view of said car running
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Old 07-27-2017, 07:47 PM
  #147  
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Originally Posted by Snail_SS
Wow almost 20 days and still no view of said car running
Its not real Just more fake news
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Old 07-27-2017, 08:06 PM
  #148  
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Only video i have


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Old 07-27-2017, 09:02 PM
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the **** is wrong with your speedometer?
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Old 07-27-2017, 09:29 PM
  #150  
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Its fixed now
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