01-17-2009
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#1
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It was a auto get over it
Join Date: Apr 2006
Location: rochester mn
Drives: something better then you
Posts: 1,987
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4g63 twin turbo.....kinda
Well in reality its compound turbo chargeing. I know not everyone has dsmlink and is on the dsmlink forums but this is something going on over there. What you guys think.
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01-18-2009
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#2
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Pewp Champion
Join Date: Nov 2003
Location: Blaine
Drives: Teh Bean
Posts: 12,309
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Re: 4g63 twin turbo.....kinda
I've been following his build as well. I'm not an expert when it comes to compound setups, so all I can say is I find it interesting and cool what he's doing, and I hope he finishes it so I can hear how it works out for him.
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01-18-2009
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#3
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immune from paybans
Join Date: Oct 2005
Location: West Des Moines
Drives: poorly
Posts: 4,358
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Re: 4g63 twin turbo.....kinda
Do both compressor wheels flow into the intake pipe? So one turbo gives lower rpm boost, and then the big turbo gives high rpm boost?
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01-18-2009
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#4
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Pewp Champion
Join Date: Nov 2003
Location: Blaine
Drives: Teh Bean
Posts: 12,309
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Re: 4g63 twin turbo.....kinda
Pretty sure the smaller turbo's outlet feeds the larger turbos inlet.
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01-18-2009
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#5
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Re: 4g63 twin turbo.....kinda
I thought it was normally done the other way around? Large --> Small --> Motor.
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01-18-2009
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#6
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immune from paybans
Join Date: Oct 2005
Location: West Des Moines
Drives: poorly
Posts: 4,358
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Re: 4g63 twin turbo.....kinda
Quote:
Originally Posted by Halon
Pretty sure the smaller turbo's outlet feeds the larger turbos inlet.
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So there's a 2.25" intake pipe for the whole thing? You would think there would have to be a separate intake pipe for each turbo, then both outlets merge into the fmic at some point.
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01-18-2009
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#7
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Pewp Champion
Join Date: Nov 2003
Location: Blaine
Drives: Teh Bean
Posts: 12,309
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Re: 4g63 twin turbo.....kinda
Yes they do both have inlet pipes. But the smaller turbo usually feeds into the larger turbo's inlet.
Here's a nice shot of another compound setup to better explain
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01-18-2009
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#8
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back in the saddle again
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Re: 4g63 twin turbo.....kinda
Seems like a lot of fucking around.
Big turbo, then install in the trunk
/case.
__________________
My street car runs low 11's and my race car's personal best is a mid 11....
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01-18-2009
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#9
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Re: 4g63 twin turbo.....kinda
Win!
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01-18-2009
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#10
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Join Date: Nov 2005
Location: Cottage Grove
Drives: Silver '02 IS300, Blue '06 Suzuki SV1000
Posts: 5,293
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Re: 4g63 twin turbo.....kinda
Quote:
Originally Posted by niterydr
Seems like a lot of fucking around.
Big turbo, then install in the trunk
/case.
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Hmm, I agree.
__________________
'02 Lexus IS300
'06 Suzuki SV1000: Back on the road and ripping hard as ever!
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01-18-2009
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#11
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flips McGee
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Re: 4g63 twin turbo.....kinda
Not sure I'd call it compound turbocharging so much as a sequential twin-turbocharged setup. AMS killed their project (that pic is from before the 1000hp on 100octane challange) due to time constraints. Would be very interesting to see one in action, but in reality I think it's gonna be a huge PITA and super unreliable. More than double the parts to break, and furthermore, the big turbo will *always* be restricted in the amount it can flow due to the small turbo's turbine wheel always being in the way of exhaust gas flow.
Still, neat. Post updates as they occur!
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01-18-2009
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#12
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Re: 4g63 twin turbo.....kinda
Quote:
Originally Posted by scheides
Not sure I'd call it compound turbocharging so much as a sequential twin-turbocharged setup. AMS killed their project (that pic is from before the 1000hp on 100octane challange) due to time constraints. Would be very interesting to see one in action, but in reality I think it's gonna be a huge PITA and super unreliable. More than double the parts to break, and furthermore, the big turbo will *always* be restricted in the amount it can flow due to the small turbo's turbine wheel always being in the way of exhaust gas flow.
Still, neat. Post updates as they occur!
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Ya was pretty complicated.. if you look at this pic tho it looks like the small turbo would get completely cut out of the loop, so the big turbo wouldnt get restricted. kinda cool, reminds me of that twin charged evo that could never get tuned right tho. Are there any working setups like this?
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01-18-2009
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#13
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flips McGee
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Re: 4g63 twin turbo.....kinda
On the AMS car yes, but this DSM project it would not; check out where the second turbo is fed from
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01-18-2009
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#14
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It was a auto get over it
Join Date: Apr 2006
Location: rochester mn
Drives: something better then you
Posts: 1,987
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Re: 4g63 twin turbo.....kinda
I like it for the fact hes trying something new. If people listen to all the ridecule and never try to make new ideas then the DSM world will die out, its people pioneering new things and ideas that keep us going. You must be a young and stupid DSMr in able to get to be an old and wise DSMr
-I was going to post that AMS picture but i couldnt find it, thanks
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01-18-2009
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#15
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Join Date: Oct 2004
Location: Maple Grove
Posts: 956
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Re: 4g63 twin turbo.....kinda
Mark my words, this is not viable.
the resistance of the TD05 turbine wheel will ruin any HP gain with the larger turbo.
but, as always, I hope I am incorrect.
Good luck fella!
__________________
building a 3000GT AWD Turbo.
Last edited by iceminion; 01-18-2009 at 12:18 PM..
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01-19-2009
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#16
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Join Date: Aug 2006
Location: Mpls
Posts: 290
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Re: 4g63 twin turbo.....kinda
Well Theoretically speaking the boost from the small turbo would make it to the motor before the big one starts doing much right? Or does the small turbo boost get stopped/slowed by the big ones compressor wheel?
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Thaught
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01-19-2009
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#17
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Join Date: Sep 2008
Location: Minni-snowta
Drives: 07 Eclipse GT
Posts: 290
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Re: 4g63 twin turbo.....kinda
I'm wondering about the amount of 'new' weight spung out there so far forward of the front suspension.
__________________
07 Eclipse GTV6 Deep Red Pearl, cosmetic and weight reduction mods in progress, suspension and brakes come in Spring 2009. I want an LSD for the 5 speed auto!!
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01-19-2009
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#18
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flips McGee
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Re: 4g63 twin turbo.....kinda
Quote:
Originally Posted by iceminion
Mark my words, this is not viable.
the resistance of the TD05 turbine wheel will ruin any HP gain with the larger turbo.
but, as always, I hope I am incorrect.
Good luck fella!
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I think you meant to say:
Quote:
Originally Posted by scheides
...the big turbo will *always* be restricted in the amount it can flow due to the small turbo's turbine wheel always being in the way of exhaust gas flow.
Quote:
Originally Posted by iceminion
+1
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So yea...mark MY works please! LOL!
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01-19-2009
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#19
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Join Date: Nov 2003
Location: Duluth
Drives: a pos
Posts: 722
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Re: 4g63 twin turbo.....kinda
I guess I've never really seen much for twin turbo setups... I know these are all compound but, I wouldnt think there would be much benefit to going compound on a small displacement motor unless you have tiny turbos...?? But, if that were going sequential the small turbos compressor would feed into the exhaust side of the larger turbo? Or, am I totally off base on my thinking here?
Last edited by 95tsi; 01-19-2009 at 09:37 AM..
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01-19-2009
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#20
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Join Date: Mar 2007
Location: Minneapolis
Posts: 469
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Re: 4g63 twin turbo.....kinda
Dammmmnn!!
__________________
"Turbo Versus Turbo Is To See Who Wins" - "Non-Turbo Versus Non-Turbo Is To See Who Loses"
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