[urq] 80tq drag racing- Intercooler reevaluation [long]

[Kaklikian, Gary]

My K26 has been upgraded with a larger compressor wheel & housing.  It will
hold 18psi consistently on the track in the higher gears with the 944
intercooler.  No evidence of heat soaking, but fuel was a problem until I
added the auxiliary injectors w/driver.
I know with your EFI that your motor can produce more hp than mine. I think
the larger compressor and intercooler are your answers.  
Gary

> ----------
> From: 	JShadzi at aol.com[SMTP:JShadzi at aol.com]
> Sent: 	Wednesday, August 29, 2001 11:34 AM
> To: 	Kaklikian, Gary; mbenno at yahoo.com; quattro at audifans.com;
> urq at audifans.com
> Subject: 	RE: [urq] 80tq drag racing- Intercooler reevaluation [long]
> 
> Currently I can get about 15 psi in first, about 17 is 2nd,and by 3-5th it
> is in the 18 range, but if I attempt to accelerate consistently through
> all the gears I get a max of 16 in 2nd, and by 3 and 4th it is down below
> 14ps-bigger IC should solve this though.
> Javad
> 
> In a message dated Wed, 29 Aug 2001 11:41:29 AM Eastern Daylight Time,
> "Kaklikian, Gary" <Gary.Kaklikian at COMPAQ.com> writes:
> 
> > I've never been able to get more then 12-13psi boost in first and second
> > gear in my 4000, regardless of how high I set the boost with the boost
> > controller,e.g, 18-20psi in 4th & 5th.   I have a large (by Audi
> standards)
> > 944 intercooler and speculated that intercooler fill time/pressure loss
> > might be the cause. But then again, it could be simply there is not
> enough
> > load on the engine in the lower gears to drive the turbo.  I'm
> effectively
> > gearing my car much higher by fitting 1.25" taller tires, and am curious
> to
> > see if this has an effect on boost in 1st and 2nd.
> > The pros for a large intercooler far outweigh any cons.
> > 
> > Gary Kaklikian
> > '86 4ktq
> > '92 S4 
> > 
> > > ----------
> > > From:     JShadzi at aol.com[SMTP:JShadzi at aol.com]
> > > Sent:     Wednesday, August 29, 2001 8:47 AM
> > > To:   mbenno at yahoo.com; quattro at audifans.com; urq at audifans.com
> > > Subject:  Re: [urq] 80tq drag racing- Intercooler reevaluation [long]
> > > 
> > > Yes, you are right, but with turbocharging (and everything else too),
> > > where 
> > > you end up from a performace standpoint is about compromise-the goal
> > > becomes 
> > > getting to a point of equilibrium where different compromises lead to
> the 
> > > final result.  Adding more IC volume will add to the pressure loss,
> but
> > > will 
> > > reduce intake air temps,which are currently unacceptable.  
> > > Javad
> > > 
> > > In a message dated 8/29/2001 7:21:26 AM Pacific Daylight Time, 
> > > mbenno at yahoo.com writes:
> > > 
> > > << Don't you need to worry about pressure loss and air speed when
> adding 
> > > volume to the intake track or is it just as simple as adding more
> > > capacity. >>
> > > 
> 
>