View Full Version : 4g63 twin turbo.....kinda
scheides
01-18-2009, 10:18 AM
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!
merkzu
01-18-2009, 10:55 AM
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!
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?
http://amsteam.net/files/2/amstopshop_10%20copy.jpg
scheides
01-18-2009, 11:19 AM
On the AMS car yes, but this DSM project it would not; check out where the second turbo is fed from :)
twack
01-18-2009, 11:48 AM
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
iceminion
01-18-2009, 12:01 PM
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!
HKSenilyks
01-19-2009, 03:54 AM
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?
SnoEclipse
01-19-2009, 07:45 AM
I'm wondering about the amount of 'new' weight spung out there so far forward of the front suspension.
scheides
01-19-2009, 08:34 AM
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!
I think you meant to say:
...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.
+1
So yea...mark MY works please! LOL!
95tsi
01-19-2009, 09:34 AM
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?
TjXiong
01-19-2009, 09:36 AM
Dammmmnn!!
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