My 3.9 V8 Mk3 Capri

[Tony C]

well i had to sell it all as such to pay for the coil packs and bits etc,
the cdi unit has been asked to go back to my sponsor as they want it back,
im not sure what to do now, had evry thing set to go wasted spark this time as had the ecu changed to suit now also :-(

[Tony C]

i think for now im going to have to go coil packs as i have every thing here now,
plus if there is a fault with current setup (miss fire) This will eliminate it.

the only downside until i can sort out how to retard the ignition via an output from the n20 controller i can't use it

[PeepPaadam]

Going coil-packs is one of the best ways to eliminate present and potential problems regarding misfires. Getting rid of the stok dizzy is a good decision

[Tony C]

i agree, the nitrous problem is the next thing to sort out though.

[dnb]

All the CDI was built in to the Mallory unit Tony sold IIRC.  Don't worry about running out of ignition energy - there's plenty available from the coils to get over 400bhp from a 5 litre RV8.  You can't tune a Rover v8 like the Swedish guys are doing without spending more than both of Tony's and my budget put together...

[Tony C]

cheers Dave

[rob@vems.co.uk]

I was missing the point about the ignition retard - thought you still had the box.
Wasted spark it is then, I'm not sure about the N2O retard as I've never looked at it.

[Tony C]

http://195.159.109.134/vemsuk/forum/index.php/topic,618.msg7351.html#new

 not sure if this will work,

[rob@vems.co.uk]

So you'd be using Input ch5 to let VEMS know that the N2O is active?  That might be the trick - hopefully someone will be along who knows - its certainly worth you setting up some experiments to see what its function is.

Rob

[Tony C]

i'll try a few when i get the engine back in the car mate,
if that works then we are laughing, plus it is handy for the other nitrous users that have a progressive controller with an ignition retard output.

[rob@vems.co.uk]

Sambas reckons that the functionality you want is in the newest version 1.1.47 (he posted a link to it recently).

[Tony C]

where abouts is that mate?

[Tony C]

found it and dloaded

[Tony C]

hi all sorry been away,
been busy trying to keep my job (recession) and rebuild the car after the miss fire on the rolling road last August,

well we now have a brand new engine to go in, (its bigger than the 3.9 that came out)
its around 11:1 comp ratio, stage 3 heads, wasted spark ignition,

heres a few pics of the build,

setting tdc.


Ignore the 4 valve cut outs, the machine shop cocked up 


Stg3 heads fitted.


Rocker gear and adjustable pushrods fitted,

[Tony C]

Trigger wheels parts for wasted spark,


Serp front end fitted,


36-1 trigger wheel fitted (hope this is done right)


Fuel rail and intake refitted,


Plenum now fitted,


Serp front end now complete,


Dizzy bung i had made fitted,


Laying out the plug lead lengths for the coil packs,


New stronger engine mounts,


Gear box mount underway for the new R380 TVR gearbox.


Dummy setup block fitted with new style engine mounts,


Tunnel had to be changed again to fit the new gearbox,


as you can see have been a bit busy