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Old 08-21-2013, 08:24 PM   #41
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Someone tell me if post 13 is wrong or not.

Im like 97% sure I have the right idea and lots of people are confused, but it could be me.

Dann
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Old 08-21-2013, 10:52 PM   #42
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Seems legit dude. You got fixed volume of air and the sc takes a gulp of it each time. Not sure what hte pressure ratio would be though as rpms increase.
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Old 08-22-2013, 08:27 AM   #43
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You need to read this paper: TVSŪ V-Series Supercharger Development for Single and Compound Boosted Engines


I have a copy on the PC at home.

The results of the study I believe showed sequential turbo charging with a small quick spool turbo and complex exhaust and intake valving and control system to be the most efficient option. This gave the largest area under the torque speed curve.
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Old 08-22-2013, 08:29 AM   #44
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Can you upload it as a torrent or email me please?

Thanks,
Dann
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Old 10-20-2013, 08:11 AM   #45
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And OP delivers.


















Dann
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Old 11-06-2013, 09:42 AM   #46
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Here is a bunch more photos.

Sandblasted and ready to cut back down and weld the runners.






















Ready for IC piping and we are done for now, off to the dyno for a low boost tune and run in and then sort out the blower and go twincharged.

Dann
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Old 11-10-2013, 04:40 PM   #47
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Dang.
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Old 11-10-2013, 05:33 PM   #48
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Aw snap
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Old 11-10-2013, 06:14 PM   #49
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Inb4 hate train.
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Old 11-10-2013, 08:58 PM   #50
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Manifold looks lovely.
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Old 11-10-2013, 10:41 PM   #51
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Intercooler piping mostly done. New supercharger brackets on the way.

Dann
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Old 11-11-2013, 04:58 AM   #52
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Im confused. Is that IC piping temporary while you wait on the supercharger bracket?
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Old 11-11-2013, 05:08 AM   #53
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Well, it's complicated, the owner wants to feed the turbo with the blower with some odd valving system using high speed actuators and some separate logic based on boost pressure, pressure differential and rpm.

When he arrived I said that I kept the piping simple because it would be temporary, and the then pulled some actuators out and said "well....".

So at this point I don't really understand his exact plans, I will keep everyone updated.

Dann
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Old 11-11-2013, 01:15 PM   #54
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That doesnt sound good. He needs to feed the supercharger with the turbo.
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Old 11-11-2013, 01:16 PM   #55
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Quote:
Originally Posted by Full_Tilt_Boogie View Post
That doesnt sound good. He needs to feed the supercharger with the turbo.
The customer is always right.
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Old 11-13-2013, 05:48 AM   #56
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Quote:
Originally Posted by Full_Tilt_Boogie View Post
That doesnt sound good. He needs to feed the supercharger with the turbo.
What makes you say that?
In a sequential twin charged configuration without compound boost, Stage-1 Supercharger and Stage-2 Turbocharger is a perfectly viable method. It has been used by several automotive manufacturers and is the preferred configuration in the aeromotive industry.

Take for example, the Volkswagen TSI twincharge engine. The video below is well worth a watch.


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Old 11-13-2013, 06:06 AM   #57
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Curious to see how it works out for you. Keep up the good work. Usually I don't even read these twin charge threads. But with you going for 500hp. I'm intrested.
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Old 11-13-2013, 09:13 AM   #58
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Quote:
Originally Posted by Leafy View Post
The customer is always right.
And a pattern emerges in Dann's builds...
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Old 11-13-2013, 10:18 AM   #59
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That is him 2 posts before you, have at him brain. Or.. or, just relax and let it take it's course.

Dann
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Old 11-13-2013, 10:22 AM   #60
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Quote:
Originally Posted by Mark-o View Post
What makes you say that?
In a sequential twin charged configuration without compound boost, Stage-1 Supercharger and Stage-2 Turbocharger is a perfectly viable method. It has been used by several automotive manufacturers and is the preferred configuration in the aeromotive industry.

Take for example, the Volkswagen TSI twincharge engine. The video below is well worth a watch.

1.4 TSI Dual-charging de la VW - YouTube

Its not wrong, its just kind of silly in now that the EFR turbos are out, especially the 7163 that will hit your power goal without you giving up too much low end compared to this setup. Doing with compound charging with the turbo feeding the blower could theoretically get you a whole lot more power.
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