Taco's hopes and mostly dreams.

[TheTacoMan]

Superchargers tend to run quite hot at high rpm thus the loss in power in the higher rpm range as well as the parasitic loss. This is the way Denny runs his supercharger and he is seeing his air temps around 90 Degrees F if I remember correctly.

Im looking into My first setup idea right now, this also gives a wicked good explanation on more twin charging and why its setup a certain way. Its long but informative.

http://vimeo.com/12685276#at=0

[e30nub]

Interested to see how you overcome the hurdles of twincharging. Ideal set up would be to have the supercharger over-driven to produce boost at idle. That boosted air should run non-intercooled straight into the intake of the turbo. This allows the turbo to be "pre-spooled" (i.e., limiting "lag"). After the supercharger can no longer push enough air into the turbo (maybe 12psi?), have a valve that opens up to atmosphere allowing the intake of the turbo to breathe freely (and supercharger's air can just dump somewhere else?) and continue producing boost on it's own. Then run your charged air through an intercooler into the intake of the engine.

I probably sound crazy (it's because I am). We have been toying around with the idea at the shop I work at for a while on our shop truck (can you say mid-engined compound cummins turbo diesel '49 ford?) Wait, WHAT?

[squidmaster]

And for 2 why not place the Intercooler between the turbo and SC? The SC itself wont get as hot so it doesn't really need a postcooler. A lot of SC setups use preschoolers because the position of the SC relative to the intake manifold.

Edit: just curious! Always wanting to learn ��

[TheTacoMan]

Sorry only one loaded on my phone.

#3

Yea Im not planning on touching that one, just spit balling on paper. Im sure its been done before as well.

[squidmaster]

Sorry only one loaded on my phone.

#3

[TheTacoMan]

Although the diagram you made is different than most twin charged setups I've seen. Any particular reason?

Which one are you referring to?

This gives a pretty good explanation of what can be done

http://www.torquecars.com/tuning/twincharging.php

Im planning to run them in series where the boost is compounded, where the last diagram is ran inline where ideally you would want the supercharger to stop providing boost once out of its efficiency range.

[squidmaster]

Although the diagram you made is different than most twin charged setups I've seen. Any particular reason?

[squidmaster]

Ah, doing something overly complicated for the sake of doing something overly complicated. I like your style! Life isn't worth living unless you're pushing what you know and can do!

[TheTacoMan]

Its not about peak Hp so to speak. Its about having the best of both worlds and me wanting to be overly complicated.

[wazzu70]

How much hp/tq are you shooting for? A twincharged setup is a lot of complexity and pretty minor gains for the effort. With a decent turbo like an EFR 7163 or an EFR 7064 you will have crazy transient response and much less complexity.

Im sure you have thought about it, but figured I would throw it out there.

[TheTacoMan]

Starting to plan out the twin charged aspect to this build with some of my drawings( Terrible) and diagrams.
Theres a few ways twin charging can be done.


This is the way I am leaning, while the second is how denny's is setup and the third kinda hypothetical idea that Im not planning on using.

1:

I may have to consider throttle body position on this, not sure where exactly quite yet. More research to do.

2. Dennys setup from what I understand.


3. An idea similar to twin turbo setups.

[TheTacoMan]

Quick crappy cell phone picture, this is with et0 in the rear.

[GAbOS]

C5 OE rotor is 325mm/12.8" 4pot. I also looked at VR4 setups and they are 300mm 4 pots. Both are thinner profile calipers and the C5 is just damned cheap with the number of re manufactures(kore3 is a common one).

[TheTacoMan]

You dont say, Ill have to look into that. Sounds like a cheap method to get decent brakes.

[GAbOS]

I'm looking at BBK's as well. Summit (local) has the 4x100 hats for $124 the get the rotor size ya need nad have someone fab you a bracket for say a C5/C6 caliper. :)