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RE: S6 Chip and Boost Upgrade

>Date: Thu, 1 Oct 1998 14:02:55 -0400
>From: Marc_Nguyen@mail.amsinc.com
>Subject: Re: S6 Chip and Boost Upgrade
>I replaced the wastegate spring in my '85 urq.  It was very simple.  I just
>had to be careful while removing the nuts.  If you're not pushing down on
>it when the last nut comes off the "cap" will probably fly off.  Also, you
>may want some help when putting the new one in.  It's difficult to push
>down on the cap and put the nuts back on by yourself.
>BTW, a friend did an IA Stage 1 (the 277 HP) upgrade on his S4 and it
>didn't require a wastegate spring change.  I'm thinking about going with IA
>for my S4 as well.  I've been really happy with the IA upgrade in the urq
>and Ned is a great guy to deal with.  I'm interested to see what your TAP
>upgrade is like.

My experience was similar, I wanted the Hoppen but ended up with the TAP
because the Hoppen was "out of stock".  The dealer did the work for me, and
assured me that they were similar chips.  I expect he's had problems with
Hoppen being out of stock before, since he didn't hesitate to switch
suppliers rather than wait.

I have been very pleased with the TAP stage I, no problems to speak of.
Well, there was a problem with missing after about a year, had to replace
all the plug wires to smooth it out (very expensive on the S6's distributed
coil setup, lucky I got it done under warranty) but I doubt that can be
attributed to the chip.

I did not do the spring.  I thought the chip was set up to expect the stock