[mkiv] Slow spooling SP57?

[Paul Pluta]

Andy,

I have the same problem with my T61 .58ar. You think the setting on my
VPC would also fix that?

This is my dyno http://www.northeastalliance.net/dyno.jpg ...

19 psi pump fuel....

Turbonetics T61 Ptrim .58 Turbocharger
Turbonetics cast turbo manifold (ceramic-coated & polished)
HKS Racing Type II BOV
HKS 65mm Steel BOV Flange
Custom Spearco Core FMIC
HKS Cold Intake
Powerhouse Racing Electric Fan
Unorthodox Racing Lightened Underdrive Pulley with Crank Pulley
HKS EVC3 (Electronic Valve Controller)
HKS VPC (Vein Pressure Converter) 
Apex Super AFC Fuel Control
HKS BCC


-----Original Message-----
From: mkiv-admin@mkiv.com [mailto:mkiv-admin@mkiv.com] On Behalf Of Andi
Baritchi
Sent: Friday, January 03, 2003 8:26 AM
To: mkiv@mkiv.com
Subject: Re: [mkiv] Slow spooling SP57?

Yeah, setting the gain to zero will make it spool pretty badly.. =)

Try starting with a gain of 20.....  

Andi

Quoting Robert Tompkins <bob-tompkins@cox.net>:

> Andi,
> 
> Any suggestions on where to start with the gain, I just went out and
> checked
> the controller in the garage and the damn thing is set to zero. Looks
> like
> that is my problem. It came with the car and I had no idea of all of
> its
> features. I did read the articles on  mkiv.com but I guess I did not
> originally read them thorough enough. As soon as my parts come back
from
> the
> powdercoater I will do some testing.
> 
> Bob << Still learning the MKIV.
> 
> 
> ----- Original Message -----
> From: "Andi Baritchi" <andi@airmail.net>
> To: <mkiv@mkiv.com>
> Sent: Friday, January 03, 2003 12:48 AM
> Subject: Re: [mkiv] Slow spooling SP57?
> 
> 
> > Try playing with the gain setting on the DSBC first....  Keep
> increasing
> it
> > until you get a boost spike when going from part throttle
> sorta-on-boost
> to full
> > boost, then turn it down a notch.
> >
> > If that doesn't work, then I'd go ahead and switch it to be
> configured:
> > turbo -> tee -> (DSBC_in -> DSBC_out -> WG_top_port) and
> (WG_side_port).
> >
> > Andi
> >
> > Robert Tompkins wrote:
> >
> > > I am trying on get some more feedback on whether or not my
> recently
> > > installed SP57 is spooling to slow, I have really nothing local to
> compare
> > > too so I need some ideas and this list has a wealth of experienced
> people on
> > > it so any input you may have may help point me in the right
> direction.
> > >
> > > My car hits full boost at about 3700 - 3800 RPM and seems to pull
> real
> hard
> > > till redline. It is my understanding that this is fairly late for
> a
> small
> > > turbo like the 57 to hit full boost. After talking this over with
> some
> > > friends who are themselves very knowledgeable, and a fellow SP57
> owner
> > > (Thanks Mike) we have touched on few ideas. The first issue is the
> setup
> of
> > > the wastegate, when installing the kit we noticed that there was
> only
> one
> > > nipple in the middle of the wastegate, the two ports at the top
are
> open
> to
> > > atmosphere. After talking to Larry at Sound Performance he told us
> to
> run my
> > > DSBC set to "actuator" and route the hose from the port on the
> compressor
> > > housing to the "in" of the controller solenoid and the "out" of
> the
> solenoid
> > > to the middle port of the wastegate. After questioning this he
> stated
> > > "that's the way we are doing all of the wastegate setups now" so
we
> did
> not
> > > give much additional thought at the time. My question is does this
> sound
> > > reasonable? If I were to reconfigure the DSBC to "wastgate" and
add
> the
> > > nipple to the top of the wastegate should I get better spooling,
> it
> seems
> > > like I would because the boost would hold the wastegate shut
> longer?
> > >
> > > The other issue we discussed is that I am running very rich as the
> turbo
> is
> > > spooling, right before it hits full boost my A/F is at 10.2 and
that
> is
> also
> > > helping to delay the spool. If you have any input please reply. I
> will
> list
> > > my entire setup below as point of reference.
> > >
> > > 1994 supra 6 speed -
> > >
> > > SP57 complete turbo kit (gt waste gate ect ect)
> > > .7 bar spring in the gate - adjustment almost all the way out.
> > > Blitz DSBC boost controller - set to actuator
> > > nd ik22 @ .028 / new coils in next week
> > > modified stock fuel - aeromotive FPR - FDP - ect.
> > > egt # 6 runner 4 inches off head (max egt 1450 deg on 4th gear
> pull)
> > > static FP 45psi / getting 1 : 1 rise per my defi gauge.
> > > Vpc / Gcc combo
> > >
> > > The rest of the car is in top condition and the motor has
> excellent
> > > compression in all cylinders.
> > >
> > > Bob
> > >
> > > _______________________________________________
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> > > Mkiv@mkiv.com
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> >
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