[urq] WX to MC-2 Swap Plans

Sun Oct 7 22:36:26 PDT 2007

Of course,
The MC Fuel Distributor and updated injectors & Lines does flow more fuel
than the earlier KH/WX setup.  At least that's my understanding.

l8r

> From: Ben Swann <benswann at comcast.net>
> Date: Sat, 6 Oct 2007 21:29:40 -0400
> To: 'Ben Swann' <benswann at comcast.net>, <urq at pacbell.net>
> Cc: <urq at audifans.com>
> Subject: Re: [urq] WX to MC-2 Swap Plans
> 
> BTW,
> 
> I would try to see if you can use the WX fuel distributor and lines.   As
> you¹ll read in
> the writup, I resorted to some convoluted configuration using Fuel
> distributor, lines
> and injectors from 5ktq, WX airbox, and had to swap frequency valve and
> pressure
> regulators.  I don¹t even know if I was able to describe the assortment as
> basically you
> need to screw together what works.  I think in the end, the WX unit should
> work fine 
> just may have a little plug and play issues with the Frequency valve, but I¹d
> fit check
> the UrQ setup first  you¹ll save a lot of time and effort.  Also the MC-2
> lines will be
> long and need to be bunched up  not a problem, just looked funny.
> 
> Or you can go Megasquirt. Not easier, but a lot more tunable in the end.
> 
> Ben
> 
> _____________________________________________
> From: Ben Swann [mailto:benswann at comcast.net]
> Sent: Saturday, October 06, 2007 9:12 PM
> To: urq at pacbell.net
> Cc: 'Ben Swann'
> Subject: [urq] WX to MC-2 Swap Plans
> 
> Steve,
> 
> I¹ll have a lot more to add, but regarding the airbox issue, I had that
> situation when I
> did the MC-1 into the CGT conversion.  In fact, I had to procure UrQ Fuel
> Distributor,
> so you are ahead of the game.
> 
> See if you can¹t find the details in this link:
> http://www.gtquattro.com/GTCTurbo.html
> 
> I¹ll be sending you some useful wiring info. Directly.
> 
> I wouldn¹t hesistate to do Megasquirt BTW, although won¹t hurt to start with
> CIS then
> convert later.
> 
> Ben
> 
> [Date: Sat, 6 Oct 2007 07:45:31 -0700
> From: "urq" <urq at pacbell.net>
> Subject: [urq]  WX to MC-2 Swap Plans
> To: <urq at audifans.com>
> Cc: ba-group at audifans.com
> Message-ID: <00cb01c80827$8c37c0f0$a4a742d0$@net>
> Content-Type: text/plain; charset="iso-8859-1"
> 
> Well it looks like the project is moving ahead much more quickly than I
> expected!  The
> engine arrived yesterday, it all looks to be clean and complete.  Now that
> I've seen the
> engine I realize that there are a couple decisions I will need to make
> regarding which
> parts to take from which motor.
> 
> Well, the one thing that may delay the project is finding a flywheel for the
> engine as
> it still has the automatic flex plate attached.  If there's anyone near San
> Jose who has
> a MT flywheel with the correct pin for an MC-2 that I could borrow or buy I'd
> appreciate
> hearing from you!  If there have been any sightings at any local pick-n-pulls
> I could
> get one that way too.  Thanks!
> 
> Since I'm paying to get this done ... and since I'd kinda like to drive my car
> soon ...
> I want to do a minimal amount of opening things up on the new engine.  The
> basic idea is
> to drop the engine in whole but use the stock urq intercooler.
> 
> I think I may have some problems with the airbox.  The airbox in the urq has
> the airflow
> sensing plate toward the bumper, while the 200 10v has it facing back.  I also
> seem to
> recall hearing that the injector lines attach to the fuel distributor
> differently.  I'm
> hoping that I can bolt the MC-2's airflow sensor plate to the urq airbox, does
> anyone
> know if that will be a problem?
> As I'm typing I suspect that one problem may well be the fuel lines to the
> injectors
> will not be long enough to support this configuration.  Perhaps the solution
> for
> expediencies sake would be to use the WX airbox, fuel distributor and
> injectors.  I'll
> appreciate any thoughts on this decision ...
> 
> The downpipe on the new motor was cut off behind the point where the wastegate
> attaches.
> I'm hoping to bolt the urq/WX downpipe up to the turbo and wastegate flanges
> from the
> MC-2.  I know that in the past I've heard about interference issues in this
> area of the
> motor ... will the WX downpipe clear the exhaust manifold on the MC?
> 
> Even though my A/C is not working, I would like to be able to have A/C in the
> future.
> The new engine does not have an A/C compressor, but it looks like there are
> mounting
> points on the block.  Will the WX A/C compressor bolt up to the MC block?
> 
> There seems to be a potential issue with using the urq intercooler in plumbing
> the
> intake to the throttle body.  I think the length of the MC's infamous Michelin
> Man hose
> is too short to reach the urq IC, and the similar pipe on the WX is a "Y"
> arrangement.
> Not only is there the extra hose to address, the shape of the throttle body
> flange on
> the MC is not round, and may have a larger circumference.  Is it best to try
> to make the
> WX pipe fit?
> Can I use the MM hose or will I have to create a hybrid?
> 
> The new engine includes the after-run coolant pump, which I'd like to fit into
> the urq.
> I saw it mounted to the block on Al's car in the warm up regulator location
> (he's done
> the EFI conversion) ... I know that the urq with the MB engine had the pump
> located this
> way as well.  I think this may be one of the projects I'll work out for myself
> ... will
> I be able to "bolt up" the stock urq coolant lines?
> 
> Funny I left the most intricate task until last ... that being wiring up the
> MAC-14.
> This is something that I will be doing myself, but I'm thinking it might be
> something I
> will "patch" in now and clean up when the car's at home.  My plan is to ignore
> the ISV
> electronics, and just find a place to get the power I need to run the engine
> and connect
> it directly to the battery (with a fuse and switch of course!).
> 
> I think that is it ... apologies for the rambling nature of the post ... but
> it was good
> as it gave me a chance to think things through a bit.  I'm going out to the
> shop again
> today to work through some of the details.  I'll appreciate hearing anything
> those of
> you who have BTDT would care to share regarding things that I'm not
> considering.  
> 
> Steve B
> San Jos?, CA (USA)]
> 
> 
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