Go back to previous topic
Forum nameTurbo/Nitrous Tech
Topic subjectExhaust Pressure
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i8&topic_id=28427
28427, Exhaust Pressure
Posted by tacoman123, Aug-07-02 10:20 AM
Would 2 of the exhaust lines be as powerful as all 4? Considering that when the 4 comes together, some of the pressure might get cancelled?

Do you think 1 (one) of the exhaust lines maybe as powerful as all four (maybe not), but what about 2 exhaust lines?

..........-------.........
..........| | | |.........
..........| \ | /.........
....Turbo ..| .........

Thanks

~Tacoman
28428, RE: Exhaust Pressure
Posted by HiOnPSI, Aug-07-02 10:21 AM
more exhaust gas = more pressure = more boost = more smiles.




Jon

1997 Eclipse RS

14.49@99mph 7/27/02

MODS: 8.8:1 JE Pistons / Eagle rods / Stage 1 Hahn turbocharger / Melling Oil Pump / Autometer 5" tach / 2 JL 12" W0 subwoofers / JL Audio 500/1 amp / Clarion 230w amp / short shifter mod / GReddy EVO exhaust / custom 2 1/2" downpipe / no cat con / CM Stage 1 / 30lb Mustang injectors / TurboXS MBC / 1G SMIC
28429, RE: Exhaust Pressure
Posted by tacoman123, Aug-07-02 10:30 AM
Seriously, could I run the turbo off of one of the exhuast lines, because this turbo spools at around 1750 rpm..

Thanks
28430, RE: Exhaust Pressure
Posted by HiOnPSI, Aug-07-02 10:32 AM
i'm dead serious. but why would you want to? I don't know if there'd be enough pressure period out of one cylinder to spin a turbine. Not only that you'd have a varying backpressure out of the other 3 that wouldn't match the turbo'd cylinder, which would cause your car to run like shit.



Jon

1997 Eclipse RS

14.49@99mph 7/27/02

MODS: 8.8:1 JE Pistons / Eagle rods / Stage 1 Hahn turbocharger / Melling Oil Pump / Autometer 5" tach / 2 JL 12" W0 subwoofers / JL Audio 500/1 amp / Clarion 230w amp / short shifter mod / GReddy EVO exhaust / custom 2 1/2" downpipe / no cat con / CM Stage 1 / 30lb Mustang injectors / TurboXS MBC / 1G SMIC
28431, RE: Exhaust Pressure
Posted by tacoman123, Aug-07-02 11:32 AM
Because I was thinking of running a TT setup (no stupid comments and jokes about that please :-) )..

I was thinking of having this very very small turbo run off one cylinder, and have the big turbo run off the rest (the 3)..

Would this even work?

Do you think it would be better to have it "equal" and have 2 lines go to each turbo?

Thanks
28432, RE: Exhaust Pressure
Posted by EvuLFleA, Aug-07-02 11:39 AM
No. That idea is just :rolleyes

Maybe if your name was SickLife TT you could do it but....

www.hahnracecraft.com
www.turbogs.com
28433, RE: Exhaust Pressure
Posted by tacoman123, Aug-07-02 11:43 AM
Did anyone really did the TT setup?

Is there someone really by the name SickLife TT? :-)

Thanks
28434, RE: Exhaust Pressure
Posted by HiOnPSI, Aug-07-02 12:16 PM
looks like a whole bunch of money and swearing to me.



Jon

1997 Eclipse RS

14.49@99mph 7/27/02

MODS: 8.8:1 JE Pistons / Eagle rods / Stage 1 Hahn turbocharger / Melling Oil Pump / Autometer 5" tach / 2 JL 12" W0 subwoofers / JL Audio 500/1 amp / Clarion 230w amp / short shifter mod / GReddy EVO exhaust / custom 2 1/2" downpipe / no cat con / CM Stage 1 / 30lb Mustang injectors / TurboXS MBC / 1G SMIC
28435, RE: Exhaust Pressure
Posted by tacoman123, Aug-07-02 12:45 PM
This setup seems pretty easy IMO, sure it would cost more than a Single Turbo, but it would produce alot of boost in the sequential setup.

~Tacoman
28436, RE: Exhaust Pressure
Posted by alain95i4, Aug-07-02 12:49 PM
>Did anyone really did the TT setup?
>
>Is there someone really by the name SickLife TT? :-)
>
>Thanks

Yes he's an ASOG member he owns 2 Avenger, and one of them is a V-6 with an experimental twin-turbo setup that should be completed before the end of the summer

My friend Marc and I made the manifolds of his car

>Seriously, could I run the turbo off of one of the exhuast lines, >because this turbo spools at around 1750 rpm..

this could cause a serious unbalance on your engine also remember that with only one cylinder you will only have 1 pulse of 500 CC every 2 rpm, the small turbo could spool at much higher level

>Which turbo spools between 4000-6000 rpm?

A fat garrett T-4 from a Nissan 280Z turbo

Alain
28437, RE: Exhaust Pressure
Posted by tacoman123, Aug-07-02 03:56 PM
So how should I split the lines?

Have 2 lines goto turbo1 and the other 2 lines goto turbo2?

Which cylinders should be together (ie 1 and 2 or 1 and 3), because you gotta think about firing order don't ya?

Thanks
28438, RE: Exhaust Pressure
Posted by tacoman123, Aug-09-02 02:21 PM
Anyone know?