To supercharge a 3A or not?

[jdbubb at verizon.net (Dan Bubb)]

Well, right off, your engine's 10:1 CR or thereabouts.
So, that will limit how much boost you can run. Not sure what the limit is, maybe 5-7 psi, and that may be all the car can reasonably handle unless you're running really sticky autocross tires.
Two ways to lower the CR are stacking headgaskets or getting a custom thicker headgasket or installing forged pistons. Either headgasket solution will compromise your combustion chamber shape somewhat although plenty of people do it.
Forged pistons are ~$570 + the cost of boring the block and other miscellaneous costs.
Other than that, just getting everything in good shape should suffice.
Dan

From: "Phil Boeye" <rocco_phil@yahoo.com>
Sent: Monday, April 03, 2006 9:26 AM
Subject: To supercharge a 3A or not?


> So I have this nice 3A/JH (Eurospec) motor and I would
> like to fun F/I for autocross.  I am thinking
> supercharging as I want the instant throttle response.
> Plus, I have a new Lysholm charger.  :)
> 
> What exactly would have to be done to the 3A block
> (25k miles) and Eurospec JH head?  I might add I also
> have the obligatory p&p'd intake and Neuspeed TB along
> w/ a Euro dizzy.  As well as all the makings for a
> Digifant I conversion.
> 
> Kind of curious, because I think the motor is worth
> more to me in potential upgrade value than what I
> could get for it.  IOW, the money it would cost to get
> a new setup would be quite a bit more than I could
> recoup on a sale of this motor.  So I'd like to
> optimize for power if possible.
> 
> -Phil
> 
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