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

[Brandon Rogers]

Well it's no secret what option I chose when it came time to make a
motor decision...

But my feeling is why go to all the work and still be stuck dealing with
finnicky CIS?  Yes MC-2 is technologically superior to the WX - higher
compression, dual knock sensors, a little more displacement, but it
still uses CIS and layout is the same.  So I think you may still be
saddled with CIS starting and warm-up stumble issues.  For me that was
90% of the reason to go with a 3B - I was tired of chasing my tail.  If
you stick with 10V think about an EFI conversion.

My .02

Brandon

-----Original Message-----
From: urq-bounces at audifans.com [mailto:urq-bounces at audifans.com] On
Behalf Of urq
Sent: Wednesday, September 19, 2007 4:48 PM
To: 'urq list'
Subject: Re: [urq] Engine options ... 25 year old urq


... 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
... 

TIA!
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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