Super chargers + MAP

[Jemison Richard]

Bruce,

Just curious.  Wouldn't the turbo spinup time be the limiting factor in
throttle response?  The reason I'm thinking it would be is that a small
carb's air velocity would be entirely dependent on the ability of the turbo
to pull air through it and if the turbo won't spin up velocity through the
carb is not going to be high for some period.   

Rick

> -----Original Message-----
> From:	goflo at pacbell.net [SMTP:goflo at pacbell.net]
> Sent:	Thursday, December 03, 1998 9:31 PM
> To:	diy_efi at efi332.eng.ohio-state.edu
> Subject:	Re: Super chargers + MAP
> 
> Bruce Plecan wrote:
>  
> > If the supercharger is between the throttle body, and engine, wouldn't
> > a 1 bar MAP work just fine if it picked up the signal at the base of
> > the throttle body (reguardless of boost?).
> 
> Think so.
> 
> > Granted a 2-3bar MAP could have better resolution.
> 
> I'm SWAG-ing that resolution could be a significant limitation - A 
> TB small enough to give good res would be volumetrically inefficient.
> 
> Jack