Re: KH wg spring in mc turbo results

[Sachelle Babbar <sbabbar@iris.nyit.edu>]

Oh, btw, with the old spring+wg controller, I was able to see full boost
(1.9-2.0) very early...much more so before the wot switch would hit. I
noticed that there was a higher boost, higher torque, but more
controllable curve at part throttle boost conditions. Consequently, I'd
rarely ever use full throttle.

I still have much driving to do before I can give a true report on the
current combination.

I'll entertain any questions.

****************************************************************************
*Steve                                             Sachelle Babbar
*'87  5000CS Turbo 5spd 1.3-2.0 bar             <SBABBAR@IRIS.NYIT.EDU>
*Cockpit adjustable wastegate, AudiSport badge
*
*Disclaimer:"Any information contained herein is based purely on my own
*personal experience and may not necessarily reflect yours. Use caution as
*your results may vary from mine."
********************************************************************************
                                                                               



On Sat, 20 Nov 1999, Orin Eman wrote:

> > KH spring + MC engine. Wonderful match. There is more down low torque and
> > the power is useable. Stock, a mild in crease in boost, maybe .1-.2. Power
> > arrives earlier, but more progressive and incredibly controllable (I have
> > a fwd 5 speed). It's overall a torquier feeling engine and I actually have
> > what feels like power in the wg controller closed position. I've restored
> > the adjustability in the boost increase; I haven't seen 1.7 bar since my
> > old kh. Just goes straight from 1.5-1.9. I can execute many maneuvers that
> > I haven't been able to since my kh.
> 
> > Conversely, I feel that the lighter mc spring in the kh + the wastegate
> > controller would be a wonderful combination due to the engine's better off
> > Idle torque.
> 
> Perhaps...
> 
> I think what you are seeing is that the MC spring is less stiff
> and allows the wastegate to crack open early.
> 
> Put a 1.6 bar spring (Scott Mockry had some) in an MC and you'll
> see boost earlier - it's a very noticeable difference in my car.
> This can be seen _before_ the WOT switch engages, so it's not
> the computer control which I have set to 1.8 bar.
> 
> I'll have to do some runs with the data aquisition board on
> my car and see what boost I do get...
> 
> Orin.
> 
>