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Brettus turbo 111 (the ultimate Renesis turbo ?)

     
Old 02-10-2016, 11:44 PM
  #826  
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You should call the new one....

Muffy the Backpressure Slayer...

In case it didn't reach down unda here's the reference:

https://en.m.wikipedia.org/wiki/Buff..._Slayer_(film)

Nice work
Last edited by slash128; 02-11-2016 at 12:07 AM.
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Old 02-11-2016, 12:04 AM
  #827  
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Originally Posted by slash128
You should call the new one....

Muffy the Backpressure Slayer...

Nice work



Was wondering how long it would be before some picked up on that .
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Old 02-11-2016, 02:46 PM
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Went for a drive last night via all the underpasses in town ...hehe
Loving the sound !
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Old 02-11-2016, 02:48 PM
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Well,

Now all you have to do is make a replica of your manifold, a more in depth description/picture etc of the sleeve mod, and ship it all to me.

Travis
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Old 02-11-2016, 10:31 PM
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That's not going to happen ...... unless of course you pay me ................

https://www.bing.com/videos/search?q...AF&FORM=VRDGAR
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Old 02-12-2016, 02:57 PM
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Dyno is booked .................. E50 or pump gas ?
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Old 02-12-2016, 04:14 PM
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Originally Posted by Brettus
Dyno is booked .................. E50 or pump gas ?
I say go for what you are tuned for now. If you change you'll likely need to spend some time dialing it in. I have found it's not just scale the injectors and go but there is a bit to be gained playing with leaner AFR and timing...
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Old 02-12-2016, 07:26 PM
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Both 2 dyno days
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Old 02-12-2016, 11:28 PM
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Bee tee dubs love the hashtags!

#Allhailtherenesis
#Longlivetherenesis
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Old 02-12-2016, 11:43 PM
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Originally Posted by slash128
Bee tee dubs love the hashtags!

#Allhailtherenesis
#Longlivetherenesis
: huh
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Old 02-13-2016, 01:36 AM
  #836  
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^ Bee tee dubs= By the Way

He's referring to Brett's sig
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Old 02-13-2016, 05:46 PM
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Originally Posted by slash128
I say go for what you are tuned for now. If you change you'll likely need to spend some time dialing it in. I have found it's not just scale the injectors and go but there is a bit to be gained playing with leaner AFR and timing...
It's 3 weeks away so have plenty of time to dial in an E50 tune . I was just thinking about what is relevant to the forum . Perhaps stick to pump gas for now then look into E50 dyno another time.
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Old 02-13-2016, 05:59 PM
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Sounds like a plan... Doing both will give you a good comparison

Once I get my clutch sorted I plan on another dyno on E50...
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Old 02-13-2016, 10:02 PM
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New muffler vs 1st attempt . Getting rid of the tight rad. has paid dividends :
New:



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Old 02-13-2016, 10:11 PM
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Nice man, it looks very functional.
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Old 02-15-2016, 02:22 AM
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Originally Posted by Brettus
It's 3 weeks away so have plenty of time to dial in an E50 tune . I was just thinking about what is relevant to the forum . Perhaps stick to pump gas for now then look into E50 dyno another time.
For the forum, I agree. Fantastic sharing, Brett!
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Old 02-18-2016, 03:18 PM
  #842  
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Finally brought it up to 16psi (on E15)
Torque hovering at 300lb/ft
Rear scroll backpressure is up to 27.5psi @ 8000rpm


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Old 02-18-2016, 04:19 PM
  #843  
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Looking real good!!! Can't wait to see official dyno
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Old 02-18-2016, 05:36 PM
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I have been hovering this thread for a while and I am so excited to see the results of this! It looks so promising!
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Old 02-19-2016, 02:05 AM
  #845  
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Swapped the pressure guage over to front scroll today .................



Original exhaust @12.5psi

.................Front scroll ..........rear scroll..........
3000..................5........................4.. ...........
4000.................11.......................9... ............
5000.................14......................13... ...........
6000.................18......................17... ..........
7000.................24......................22... ..........
8000.................30......................27... ................

New exhaust @16psi

3000.................4.........................4
4000.................11.......................9
5000.................16......................15
6000.................19......................18.5
7000.................24......................23.5
8000.................29......................27.5

Looks like the difference between scrolls is less at higher flows as i had hoped.
Last edited by Brettus; 02-19-2016 at 02:27 AM.
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Old 02-19-2016, 08:02 AM
  #846  
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Must say I'm surprised by how high back pressure are. I dont know why, but I had guessed it would have been lower. Kind of makes sense with quite a lot pressure when 40-60Hp is required to drive the compressor.
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Old 02-19-2016, 01:29 PM
  #847  
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Originally Posted by AAaF
Must say I'm surprised by how high back pressure are. I dont know why, but I had guessed it would have been lower. Kind of makes sense with quite a lot pressure when 40-60Hp is required to drive the compressor.
Yeah , it's given me more understanding of why it's so difficult to make much power on these engines . I hate to think how much there was in my old Greddy setup while pushing similar boost ..... probably over 50psi.

Corky Bell has this to say about it :

It is this writer's opinion that a good street turbo system will show the ratio of TIP to IMP t.o be approximntely 2. If a ratio of greater than 2 exists, the turbo is too small and is choking the system down and not permitting much power gain. If the ratio is less than 2, often the boost theshold will be higher than desireable for commuter Car use. This situation is offset by t.he fact that as the ratio comes down power goes up.
As my setup has a ratio of less than 2 (and good response) it would seem it's quite acceptable for a street setup.
Last edited by Brettus; 02-19-2016 at 01:50 PM.
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Old 02-19-2016, 06:47 PM
  #848  
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Forgive my lack of knowledge here, but to clarify "TIP to IMP" = Turbo Inlet Pressure/Intake Manifold Pressure or ...?
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Old 02-19-2016, 06:59 PM
  #849  
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Originally Posted by slash128
Forgive my lack of knowledge here, but to clarify "TIP to IMP" = Turbo Inlet Pressure/Intake Manifold Pressure or ...?
TIP=turbine inlet pressure
IMP= Intake manifold pressure

TIP is not just telling if turbo is right size but also if your entire system is ok .This is why I've been comparing mine against the matchbot numbers . Even though mine is not a BW turbine , I've been able to match it up with one on their chaarts and see where the other weaknesses are on my setup. Would be great if you could look at yours for comparison
Last edited by Brettus; 02-19-2016 at 07:03 PM.
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Old 02-19-2016, 07:01 PM
  #850  
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Originally Posted by Brettus
TIP=turbine inlet pressure
IMP= Intake manifold pressure
turbo/turbine same dif

Kidding, thanks for clarifying
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