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Borgwarner Twin Scroll 7670 With Dyno Graph

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Old Oct 28, 2011 | 01:00 PM
  #301  
David Buschur's Avatar
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OK more stuff.

Doing the math from page 1 in this thread, the 30 psi graphs on the Dynapak. If we take 13% off those numbers (which is what we subtract for Dynojet correction) the car should have made 554 whp and 511 ft lbs. What was actually made was 539 whp/480 torque at 27.8 psi.

I'd say the Dynojet calculation I made was pretty close

I am also running some very aggressive knock control on the car, when it got here the knock control was on but had 0 fuel correction and a max of 5.98 degrees of timing could be pulled, it would have been impossible for the engine to stay together as the table was set up to allow the car to see 4.2 volts of knock at 8,000 rpm. I am allowing 3.2 volts at 8,000 rpm and just touching that.
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Old Oct 28, 2011 | 01:16 PM
  #302  
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Do you mind posting a graph overlaying the results from this dyno run with the HTA3076 @35psi on the other thread? It looks like they performed very similarly.
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Old Oct 28, 2011 | 01:21 PM
  #303  
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WOW! Great team you have Dave!


Is there anything that can be done to the OEM oil pump to make it stronger or to perform better?
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Old Oct 28, 2011 | 01:25 PM
  #304  
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What size turbine did he get with this turbo? Internal or external wastegate? I didn't see that listed but most likely I just missed it.
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Old Oct 28, 2011 | 01:26 PM
  #305  
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This is the dyno sheet from 28 psi. This is how the car is leaving and is a fourth gear pull.

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Old Oct 28, 2011 | 01:27 PM
  #306  
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Originally Posted by JARVEVO8
WOW! Great team you have Dave!


Is there anything that can be done to the OEM oil pump to make it stronger or to perform better?
I saw this the first time you asked. I'm sorry but if we aren't building the engine we don't give engine advise. Dick move, maybe, but it keep us in the engine building business.
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Old Oct 28, 2011 | 01:28 PM
  #307  
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I do not know the exact details on the turbo, I think they are in the first post.

The turbine housing is a twin scroll T4, twin Tial external wastegates on a Full Race Twin scroll T4 header. Tial BOV, the BOV on the turbo is blocked off with the plate from BW.
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Old Oct 28, 2011 | 01:32 PM
  #308  
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Originally Posted by David Buschur
I do not know the exact details on the turbo, I think they are in the first post.

The turbine housing is a twin scroll T4, twin Tial external wastegates on a Full Race Twin scroll T4 header. Tial BOV, the BOV on the turbo is blocked off with the plate from BW.
If external gated T4 then it is most likely the 1.05ar housing, here are the specs for the turbo if you want to check it out: http://www.full-race.com/store/turbo...670-turbo.html

Thanks for the dyno!
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Old Oct 28, 2011 | 01:38 PM
  #309  
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looking at cbre's 2.3/green graph: https://www.evolutionm.net/forums/ev...27-ft-lbs.html. leetevo should just switch back to a green or red for better response and same power up-top

Last edited by dtrackstar; Oct 28, 2011 at 01:42 PM.
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Old Oct 28, 2011 | 01:41 PM
  #310  
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Two pictures for you guys. This is a BRAND new engine, put it together, strapped it on the dyno ran 17 dyno runs from 2500-8000 rpm and up to 35 psi of boost. Below is the oil filter after being taken off along with the bottom of the filter container, as you can see both are spotless. The water bottle catch can they have on the valve cover, you can also see, perfectly clean. That's how you build an engine.


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Old Oct 28, 2011 | 01:41 PM
  #311  
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Originally Posted by David Buschur
I saw this the first time you asked. I'm sorry but if we aren't building the engine we don't give engine advise. Dick move, maybe, but it keep us in the engine building business.

No worries, I understand...
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Old Oct 28, 2011 | 01:43 PM
  #312  
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Originally Posted by Texas_Ace
If external gated T4 then it is most likely the 1.05ar housing, here are the specs for the turbo if you want to check it out: http://www.full-race.com/store/turbo...670-turbo.html

Thanks for the dyno!
Yes, that is the turbo.
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Old Oct 28, 2011 | 01:45 PM
  #313  
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Originally Posted by dtrackstar
looking at cbre's 2.3/green graph: https://www.evolutionm.net/forums/ev...27-ft-lbs.html. leetevo should just switch back to a green or red for better response and same power up-top
haha no thanks man. I don't feel like running 39.7 psi of boost at the track lol. I can't express how excited I'm going to be to track the car. Dave and his shop have been SUPER helpful, great to deal with... and quick to fix and find solutions. I couldn't ask for better.

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Old Oct 28, 2011 | 02:06 PM
  #314  
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what a great turn out...!!!
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Old Oct 28, 2011 | 02:21 PM
  #315  
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Very nice.
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