logged turbo back presure at 32 psi boost!
Thread Starter
Joined: Sep 2005
Posts: 76
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From: sydney, nsw, australia
logged turbo back presure at 32 psi boost!
was out testing last weekend, i run a b16a, stock head,cams,and valves, t3 60-1 turbo charger, tial 38mm waste gate, and at 32psi boost its making close to 60psi presure in the exhaust manifold!
the back presures not bad until it goes over 7500rpm then it just climbs!
the turbocharger runs a 0.63 a/r turbine and a stg3 t3 turbine wheel....
any suggestion on how to reduce back pressure with out effecting my power band!
rev limiter is set at 9300rpm.
the back presures not bad until it goes over 7500rpm then it just climbs!
the turbocharger runs a 0.63 a/r turbine and a stg3 t3 turbine wheel....
any suggestion on how to reduce back pressure with out effecting my power band!
rev limiter is set at 9300rpm.
Honda-Tech Member
Joined: Apr 2001
Posts: 16,905
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From: Lansdale, PA
Re: logged turbo back presure at 32 psi boost! (non-VTEC)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by non-VTEC »</TD></TR><TR><TD CLASS="quote">try a 44mm or larger wastegate?</TD></TR></TABLE>
more like a larger exh wheel and housing.
what exh manifold are you using ?
what cams are you using ?
more like a larger exh wheel and housing.
what exh manifold are you using ?
what cams are you using ?
Honda-Tech Member
Joined: Apr 2001
Posts: 16,905
Likes: 3
From: Lansdale, PA
Re: logged turbo back presure at 32 psi boost! (jetlude)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jetlude »</TD></TR><TR><TD CLASS="quote">what do you use to measure back pressure in exhaust manifold? </TD></TR></TABLE>
a sensor
0-150 psi.
a sensor
0-150 psi.
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Joined: May 2002
Posts: 15,814
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From: Dallas, TX, USA
Re: logged turbo back presure at 32 psi boost! (DaveF)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DaveF »</TD></TR><TR><TD CLASS="quote">
a sensor
0-150 psi.</TD></TR></TABLE>
If you're not way out in left field, a 5 bar map sensor will usually do the trick. If you max out a 5 bar map on the exhaust then you just know you need a bigger turbo. lol
a sensor
0-150 psi.</TD></TR></TABLE>
If you're not way out in left field, a 5 bar map sensor will usually do the trick. If you max out a 5 bar map on the exhaust then you just know you need a bigger turbo. lol
Honda-Tech Member
Joined: Jan 2005
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From: Lower Right Hand Corner, PA
Re: logged turbo back presure at 32 psi boost! (tony1)
How are you guys sourcing the pressure from the exhaust?! I would assume your standard vacuum line wouldn't do much good for this lol.
Thread Starter
Joined: Sep 2005
Posts: 76
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From: sydney, nsw, australia
Re: logged turbo back presure at 32 psi boost! (DaveF)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DaveF »</TD></TR><TR><TD CLASS="quote">
more like a larger exh wheel and housing.
what exh manifold are you using ?
what cams are you using ?</TD></TR></TABLE>
its a custom made hi-mount manifold i made, cams are stock b16a
more like a larger exh wheel and housing.
what exh manifold are you using ?
what cams are you using ?</TD></TR></TABLE>
its a custom made hi-mount manifold i made, cams are stock b16a
Thread Starter
Joined: Sep 2005
Posts: 76
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From: sydney, nsw, australia
Re: logged turbo back presure at 32 psi boost! (jetlude)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jetlude »</TD></TR><TR><TD CLASS="quote">what do you use to measure back pressure in exhaust manifold? </TD></TR></TABLE>
i use a vdo 10bar pressure sensor
i use a vdo 10bar pressure sensor
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