[urq] Engine options ... 25 year old urq

urq urq at pacbell.net
Wed Sep 19 15:48:22 PDT 2007

... well, I got a call today ... rust in the cylinders on at least 2 pots
... now I'm really glad I decided to have someone else work on the car!  :-)

So ... I've got many possible options at this point ... but the two I'm
thinking are my most likely solutions at this point are:

1) Keep the WX - pull the pistons, have them re-ringed and the cylinder
bores cleaned up.  I already have a head ready to go for the motor, so this
is a fairly easy option ... but then I'll still have a WX and a MAC-02 ...

2) Install an MC-2 engine - my feeling is that the 20v (3B/AAN) doesn't
bring that much more to the table, and the dual knock sensor and MAC-13 can
be tweaked ... and leave MegaSquirt options in the future.  

I thought I'd toss this one out for comment ... which is the best choice?
Is there some option I'm ignoring that would push me toward another option?

Does anyone know about any MC-2 engines available near the San Jose, CA
area?  I have the wiring loom and the MAC-13 ... I'd need the engine and
sensors.  I'd need to mix and match urq and MC-2 parts ... one thing I'd
like to try to work in is the fuel distributor with the position sensor on
the airflow plate ... for trip computer use should I fit a digidash.  

... the last variable ... I have a set of the Wiseco pistons from the GB a
while ago.  They are oversize for the WX, I don't remember whether or not
they require boring out the MC ... should I go to the effort of reworking
the new motor to incorporate the pistons?  

It would be great to hear from someone who has gone down a similar road ...
I'd like to understand what points drove you to go the way you did ... 

Steve B
San José, CA (USA)

-----Original Message-----

Well, I can now say that DA222 is out of the garage!  This doesn't mean that
it is all up and running again, but the process to get to that level is now
started ... 

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