JET86. The Australian self built, twin charged build. - Page 2 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

charged86 · 08-23-2013, 12:16 AM

Quote:

Originally Posted by tahoward

Doesn't the supercharger have a bypass valve that is open during idle to equalize pressure? I'd imagine that can be opened up once the turbo is spooled up. Don't know about cfm rating on the supercharger with the valve open, it could still be a potential restriction on performance...

As long as that valve is open and the supercharger is free spinning heat soak should not be an issue since it is not doing any work at that point.

how does it separate the belt shaft from the twin blades inside

DarkCard · 08-23-2013, 12:35 AM

My head hurts thinking about this logic.

nix · 08-23-2013, 01:23 AM

Showing MRT how it's done!

Have you started on the new engine yet and any list of plans for it?

djdnz · 08-23-2013, 10:45 AM

So the legal issues must not be due to the turbo then since you're keeping it? Interested to see your numbers, hope you have better luck after the changes.

jet86 · 08-23-2013, 06:03 PM

Better pic

jet86 · 08-23-2013, 06:07 PM

Guys. The way this is setup both the supercharger and the turbocharger are running at 100% duty. It's why it's compounding the boost. The turbo charger feeds already compressed air into the supercharger and the supercharger compresses it further. It's multiplying the boost not just adding it. There is an formulae that I made but it's really long and will bore you all but I've worked it out that if the sc runs at 10psi max and the turbo feeds it 7psi then the manifold pressure will be 20psi.

Sent from my GT-I9505 using Tapatalk 4

jet86 · 08-23-2013, 06:09 PM

This will be running within the next week

tahoward · 08-23-2013, 09:06 PM

Quote:

Originally Posted by charged86

how does it separate the belt shaft from the twin blades inside

It doesn't. When the bypass valve opens pressure equalizes on both the intake and outlet sides of the supercharger. There's still work being done to spin the screws but it's a lot less work than compressing the incoming air.

charged86 · 08-23-2013, 09:14 PM

Quote:

Originally Posted by jet86

Guys. The way this is setup both the supercharger and the turbocharger are running at 100% duty. It's why it's compounding the boost. The turbo charger feeds already compressed air into the supercharger and the supercharger compresses it further. It's multiplying the boost not just adding it. There is an formulae that I made but it's really long and will bore you all but I've worked it out that if the sc runs at 10psi max and the turbo feeds it 7psi then the manifold pressure will be 20psi.

Sent from my GT-I9505 using Tapatalk 4

OICU812 · 08-23-2013, 09:19 PM

Double boost = double jizz!!

hamdan · 08-24-2013, 12:26 AM

Supercharger or Turbocharger.........

Why not fucking both!
Cant wait to see how this turns out, Aussie Power!

Overland'n'5thGEN · 08-24-2013, 02:00 AM

reminds me of the famous lotus...

[ame]http://youtu.be/HmscSzFurwg[/ame]

will we see a GT86 next...

jet86 · 08-24-2013, 05:22 AM

[ame="https://www.youtube.com/watch?v=JQXTPcMbAqc&feature=youtube_gdata_player"]Twin charged gt86. Fully custom built by me. - YouTube[/ame]

Quick teaser

Sent from my GT-I9505 using Tapatalk 4

nix · 08-24-2013, 05:29 AM

Hahaha take that, cops.

08-23-2013, 12:35 AM	#16
DarkCard Senior Member Join Date: Oct 2012 Drives: Asphalt Scion Frs 6MT Location: New York Posts: 1,044 Thanks: 101 Thanked 564 Times in 286 Posts Mentioned: 14 Post(s) Tagged: 0 Thread(s)	My head hurts thinking about this logic. __________________ DarkCard Photography

08-24-2013, 02:00 AM	#26
Overland'n'5thGEN Senior Member Join Date: Feb 2013 Drives: 5th Gen Toyota 4Runner Location: SF Bay Area Posts: 397 Thanks: 82 Thanked 129 Times in 98 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	reminds me of the famous lotus... [ame]http://youtu.be/HmscSzFurwg[/ame] will we see a GT86 next... __________________ Build thread for Amber Last edited by Overland'n'5thGEN; 08-24-2013 at 02:15 AM.

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08-23-2013, 10:45 AM	#18
djdnz 1337 Join Date: Oct 2011 Drives: 2013 BRZ WRB S/C Location: San Jose, CA / Waterloo, ON Posts: 1,134 Thanks: 776 Thanked 482 Times in 269 Posts Mentioned: 7 Post(s) Tagged: 2 Thread(s)	So the legal issues must not be due to the turbo then since you're keeping it? Interested to see your numbers, hope you have better luck after the changes.

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