<VV> Re:Turbos

[tkalp@cox.net]

Smitty is exactly right, if you are talking about a stock Corvair turbo in "suck thru" operation.  However turbo technology has changed a lot in the last 40 years.  It is easy to find a small turbo that will spool up fast and still produce enough boost to destroy a stout Corvair engine.  As Smitty has wisely pointed out the remote (almost said rear <G>) mounted turbo would have to be a "blow-thru" system. The STS system claimed a turbo lag of 0.05 second.

BTW I do believe Matt is wrong. A wastgate is on the exhaust side to keep the turbo from overboosting . . . the pop-off valve is on the intake side (blow-thru only)it's job is to keep the turbo spinning during shifts on a manual transmission car.  I am sure there are others on the list that can give a better explanation.

Terry Kalp

> 
> From: vairologist@juno.com
> Subject: <VV> Re:Turbos
> 
> Turbos
> ----------------snip--------------
> Smitty says:  I lost track of whether Ken or Mark was promoting this
> idea.  Think about it for a minute though.  Turbo lag is already a
> problem.  The more volume contained in the compressed side of the intake
> system then the longer it will take for the turbo to bring the pressure
> up.  I realize cooling the compressed charge has its advantages but the
> negative side of that is when the charge is cooled the fuel starts
> condensing into droplets. 

> ----------------snip---------------