Re: [DML] Super Charged/EFI

[Steve Stankiewicz <protodelorean@xxxxxxxxx>]

Hi Martin.  The TEC3 uses a wasted spark technique
also.  (There are actually only three coils, each
firing two cylinders.)  

Steve

--- Martin Gutkowski <martin@xxxxxxxxxxxxxx> wrote:

> 
> 
> Hi Steve
> 
> Yeah, we're "lucky" but the snag is that it only
> works if you're going 
> to use the stock ECU as the trigger wheel is
> bizarre. With the 25 turbo, 
> even if I had an ecu, I wouldn't want to use it as
> it uses a speed sense 
> to limit boost in low gears, has a top end of under
> a bar of boost and I 
> don't have the IACV valve for wastegate control (and
> don't need it with 
> the size of the D's rear tyres). It also uses an
> idlespeed mixture 
> control valve. The ECU for the Alpine A610 would be
> good but is set up 
> for a 3 litre lump. I looked at Electromotive thanks
> to your site but 
> the price put me off big-time. I was thinking of
> doing exactly as you 
> with the trigger wheel but spacing out the
> compressor, water pump 
> pulley, alternator pulley and ac idlers out by 1/8"
> to accommodate the 
> trigger wheel, but the SDS system just uses magnets
> on the pulley - much 
> easier, and although it's sneered at a little in the
> TEC3 manual, I 
> don't see that it will be much less accurate-
> perhaps a tiny fraction, 
> but they (say they) get around it by making sure
> they use decent coil 
> packs with a good duration on the plug.
> 
> Quick question for you: are you using full
> sequential ignition? It's 
> completely unnecessary (the Renault setup uses
> wasted spark) but it 
> occurred to me in the pub just now (very condusive
> to clarity of 
> thought!) that my RPM signal is going to be 2x what
> my Rev counter wants 
> and will screw up the idlespeed system as well as
> the rev counter. On 
> the SDS there's no idlespeed control but the
> idlespeed valve on the R25 
> is unsurprisingly identical to the DeLorean's so I
> can just use a idle 
> microswitch (handy therefore that the throttle pot
> incorporates one 
> anyway!) and the original system.
> 
> Just in case there're still other people reading
> this thread and haven't 
> yet fallen asleep, I've put some pics of my engine
> at the following URL. 
> I took these shots mainly so I had some record of
> how everything came 
> apart. Yes it's really dirty - it sat in this guy's
> back garden for 2 
> years but internally it's as sound as a pound with
> only the timing chain 
> guides showing any real wear. I'm going to have
> everything tested anyay 
> but I expect the crank to be spot on - the bearings
> are all still pearly 
> white and the bores aren't scored. This engine was
> very much de-tuned 
> for the 25 Turbo
> 
> http://www.delorean.co.uk/turboprv.zip
> 
> One of the photos shows the flywheel and you can see
> it's identical to 
> the DeLorean's except for the trigger wheel
> 
> Martin
> 
> Steve Stankiewicz wrote:
> 
> >>    
> >>
> >That's where you've got one up on us here in the
> >States.  With no access to that bellhousing, I went
> >through the trouble of carefully trimming the
> trigger
> >ring off of the Eagle's automatic flexplate,
> indexing
> >it, adding tabs and attaching it to the Delorean
> >flywheel, then adding a pickup mount on the
> Delorean
> >bellhousing only to bail out on the whole system
> and
> >go with the aftermarket fuel management system.
> >
> >Can't wait to see how your setup turns out!
> >
> >If you need any photos or measurements off of the
> >Eagle engines, just let me know.
> >
> >=====
> >Steve
> >
> 
> 
> 
> [Non-text portions of this message have been
> removed]
> 
> 
> 
> 
> 
> 
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>  
> 
> 
> 
> 



		
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